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 | * |
|
|
10 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
11 | * this list of conditions and the following disclaimer. |
|
|
12 | * |
|
|
13 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
14 | * notice, this list of conditions and the following disclaimer in the |
|
|
15 | * documentation and/or other materials provided with the distribution. |
|
|
16 | * |
|
|
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
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 |
|
|
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
|
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
|
24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
|
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
|
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
|
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
|
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
|
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
39 | # else |
48 | # else |
40 | # include "config.h" |
49 | # include "config.h" |
|
|
50 | # endif |
|
|
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
|
|
60 | # endif |
|
|
61 | # endif |
41 | # endif |
62 | # endif |
42 | |
63 | |
43 | # if HAVE_CLOCK_GETTIME |
64 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
65 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
66 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
72 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
73 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
74 | # endif |
54 | # ifndef EV_USE_REALTIME |
75 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
76 | # define EV_USE_REALTIME 0 |
|
|
77 | # endif |
|
|
78 | # endif |
|
|
79 | |
|
|
80 | # ifndef EV_USE_NANOSLEEP |
|
|
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
|
|
83 | # else |
|
|
84 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
85 | # endif |
57 | # endif |
86 | # endif |
58 | |
87 | |
59 | # ifndef EV_USE_SELECT |
88 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
102 | # else |
131 | # else |
103 | # define EV_USE_INOTIFY 0 |
132 | # define EV_USE_INOTIFY 0 |
104 | # endif |
133 | # endif |
105 | # endif |
134 | # endif |
106 | |
135 | |
|
|
136 | # ifndef EV_USE_EVENTFD |
|
|
137 | # if HAVE_EVENTFD |
|
|
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
|
|
142 | # endif |
|
|
143 | |
107 | #endif |
144 | #endif |
108 | |
145 | |
109 | #include <math.h> |
146 | #include <math.h> |
110 | #include <stdlib.h> |
147 | #include <stdlib.h> |
111 | #include <fcntl.h> |
148 | #include <fcntl.h> |
… | |
… | |
129 | #ifndef _WIN32 |
166 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
167 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
168 | # include <sys/wait.h> |
132 | # include <unistd.h> |
169 | # include <unistd.h> |
133 | #else |
170 | #else |
|
|
171 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
172 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
173 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
176 | # endif |
139 | #endif |
177 | #endif |
140 | |
178 | |
141 | /**/ |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
180 | |
|
|
181 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
182 | # if __linux && __GLIBC__ >= 2 |
|
|
183 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
184 | # else |
|
|
185 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
186 | # endif |
|
|
187 | #endif |
142 | |
188 | |
143 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
|
|
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
191 | # define EV_USE_MONOTONIC 1 |
|
|
192 | # else |
144 | # define EV_USE_MONOTONIC 0 |
193 | # define EV_USE_MONOTONIC 0 |
|
|
194 | # endif |
145 | #endif |
195 | #endif |
146 | |
196 | |
147 | #ifndef EV_USE_REALTIME |
197 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
198 | # define EV_USE_REALTIME 0 |
|
|
199 | #endif |
|
|
200 | |
|
|
201 | #ifndef EV_USE_NANOSLEEP |
|
|
202 | # if _POSIX_C_SOURCE >= 199309L |
|
|
203 | # define EV_USE_NANOSLEEP 1 |
|
|
204 | # else |
|
|
205 | # define EV_USE_NANOSLEEP 0 |
|
|
206 | # endif |
149 | #endif |
207 | #endif |
150 | |
208 | |
151 | #ifndef EV_USE_SELECT |
209 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_SELECT 1 |
153 | #endif |
211 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
217 | # define EV_USE_POLL 1 |
160 | # endif |
218 | # endif |
161 | #endif |
219 | #endif |
162 | |
220 | |
163 | #ifndef EV_USE_EPOLL |
221 | #ifndef EV_USE_EPOLL |
|
|
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
223 | # define EV_USE_EPOLL 1 |
|
|
224 | # else |
164 | # define EV_USE_EPOLL 0 |
225 | # define EV_USE_EPOLL 0 |
|
|
226 | # endif |
165 | #endif |
227 | #endif |
166 | |
228 | |
167 | #ifndef EV_USE_KQUEUE |
229 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
230 | # define EV_USE_KQUEUE 0 |
169 | #endif |
231 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
233 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
234 | # define EV_USE_PORT 0 |
173 | #endif |
235 | #endif |
174 | |
236 | |
175 | #ifndef EV_USE_INOTIFY |
237 | #ifndef EV_USE_INOTIFY |
|
|
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
239 | # define EV_USE_INOTIFY 1 |
|
|
240 | # else |
176 | # define EV_USE_INOTIFY 0 |
241 | # define EV_USE_INOTIFY 0 |
|
|
242 | # endif |
177 | #endif |
243 | #endif |
178 | |
244 | |
179 | #ifndef EV_PID_HASHSIZE |
245 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
246 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
247 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
256 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
257 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
258 | # endif |
193 | #endif |
259 | #endif |
194 | |
260 | |
195 | /**/ |
261 | #ifndef EV_USE_EVENTFD |
|
|
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
263 | # define EV_USE_EVENTFD 1 |
|
|
264 | # else |
|
|
265 | # define EV_USE_EVENTFD 0 |
|
|
266 | # endif |
|
|
267 | #endif |
|
|
268 | |
|
|
269 | #if 0 /* debugging */ |
|
|
270 | # define EV_VERIFY 3 |
|
|
271 | # define EV_USE_4HEAP 1 |
|
|
272 | # define EV_HEAP_CACHE_AT 1 |
|
|
273 | #endif |
|
|
274 | |
|
|
275 | #ifndef EV_VERIFY |
|
|
276 | # define EV_VERIFY !EV_MINIMAL |
|
|
277 | #endif |
|
|
278 | |
|
|
279 | #ifndef EV_USE_4HEAP |
|
|
280 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
281 | #endif |
|
|
282 | |
|
|
283 | #ifndef EV_HEAP_CACHE_AT |
|
|
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
285 | #endif |
|
|
286 | |
|
|
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
196 | |
288 | |
197 | #ifndef CLOCK_MONOTONIC |
289 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
291 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
292 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
294 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
295 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
296 | # define EV_USE_REALTIME 0 |
205 | #endif |
297 | #endif |
206 | |
298 | |
|
|
299 | #if !EV_STAT_ENABLE |
|
|
300 | # undef EV_USE_INOTIFY |
|
|
301 | # define EV_USE_INOTIFY 0 |
|
|
302 | #endif |
|
|
303 | |
|
|
304 | #if !EV_USE_NANOSLEEP |
|
|
305 | # ifndef _WIN32 |
|
|
306 | # include <sys/select.h> |
|
|
307 | # endif |
|
|
308 | #endif |
|
|
309 | |
|
|
310 | #if EV_USE_INOTIFY |
|
|
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
|
|
313 | # include <sys/inotify.h> |
|
|
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
315 | # ifndef IN_DONT_FOLLOW |
|
|
316 | # undef EV_USE_INOTIFY |
|
|
317 | # define EV_USE_INOTIFY 0 |
|
|
318 | # endif |
|
|
319 | #endif |
|
|
320 | |
207 | #if EV_SELECT_IS_WINSOCKET |
321 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
322 | # include <winsock.h> |
209 | #endif |
323 | #endif |
210 | |
324 | |
211 | #if !EV_STAT_ENABLE |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
212 | # define EV_USE_INOTIFY 0 |
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
|
|
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
336 | # include <stdint.h> |
|
|
337 | # ifdef __cplusplus |
|
|
338 | extern "C" { |
213 | #endif |
339 | # endif |
214 | |
340 | int eventfd (unsigned int initval, int flags); |
215 | #if EV_USE_INOTIFY |
341 | # ifdef __cplusplus |
216 | # include <sys/inotify.h> |
342 | } |
|
|
343 | # endif |
217 | #endif |
344 | #endif |
218 | |
345 | |
219 | /**/ |
346 | /**/ |
|
|
347 | |
|
|
348 | #if EV_VERIFY >= 3 |
|
|
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
350 | #else |
|
|
351 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
352 | #endif |
|
|
353 | |
|
|
354 | /* |
|
|
355 | * This is used to avoid floating point rounding problems. |
|
|
356 | * It is added to ev_rt_now when scheduling periodics |
|
|
357 | * to ensure progress, time-wise, even when rounding |
|
|
358 | * errors are against us. |
|
|
359 | * This value is good at least till the year 4000. |
|
|
360 | * Better solutions welcome. |
|
|
361 | */ |
|
|
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
220 | |
363 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
364 | #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) */ |
365 | #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 */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
224 | |
367 | |
225 | #if __GNUC__ >= 3 |
368 | #if __GNUC__ >= 4 |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
227 | # define inline_size static inline /* inline for codesize */ |
|
|
228 | # if EV_MINIMAL |
|
|
229 | # define noinline __attribute__ ((noinline)) |
370 | # define noinline __attribute__ ((noinline)) |
230 | # define inline_speed static noinline |
|
|
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
|
|
235 | #else |
371 | #else |
236 | # define expect(expr,value) (expr) |
372 | # define expect(expr,value) (expr) |
237 | # define inline_speed static |
|
|
238 | # define inline_size static |
|
|
239 | # define noinline |
373 | # define noinline |
|
|
374 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
375 | # define inline |
|
|
376 | # endif |
240 | #endif |
377 | #endif |
241 | |
378 | |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
381 | #define inline_size static inline |
|
|
382 | |
|
|
383 | #if EV_MINIMAL |
|
|
384 | # define inline_speed static noinline |
|
|
385 | #else |
|
|
386 | # define inline_speed static inline |
|
|
387 | #endif |
244 | |
388 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
247 | |
391 | |
248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
394 | |
251 | typedef ev_watcher *W; |
395 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
396 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
254 | |
398 | |
|
|
399 | #define ev_active(w) ((W)(w))->active |
|
|
400 | #define ev_at(w) ((WT)(w))->at |
|
|
401 | |
|
|
402 | #if EV_USE_MONOTONIC |
|
|
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
406 | #endif |
256 | |
407 | |
257 | #ifdef _WIN32 |
408 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
409 | # include "ev_win32.c" |
259 | #endif |
410 | #endif |
260 | |
411 | |
… | |
… | |
267 | { |
418 | { |
268 | syserr_cb = cb; |
419 | syserr_cb = cb; |
269 | } |
420 | } |
270 | |
421 | |
271 | static void noinline |
422 | static void noinline |
272 | syserr (const char *msg) |
423 | ev_syserr (const char *msg) |
273 | { |
424 | { |
274 | if (!msg) |
425 | if (!msg) |
275 | msg = "(libev) system error"; |
426 | msg = "(libev) system error"; |
276 | |
427 | |
277 | if (syserr_cb) |
428 | if (syserr_cb) |
… | |
… | |
281 | perror (msg); |
432 | perror (msg); |
282 | abort (); |
433 | abort (); |
283 | } |
434 | } |
284 | } |
435 | } |
285 | |
436 | |
|
|
437 | static void * |
|
|
438 | ev_realloc_emul (void *ptr, long size) |
|
|
439 | { |
|
|
440 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
441 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
442 | * the single unix specification, so work around them here. |
|
|
443 | */ |
|
|
444 | |
|
|
445 | if (size) |
|
|
446 | return realloc (ptr, size); |
|
|
447 | |
|
|
448 | free (ptr); |
|
|
449 | return 0; |
|
|
450 | } |
|
|
451 | |
286 | static void *(*alloc)(void *ptr, long size); |
452 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
287 | |
453 | |
288 | void |
454 | void |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
455 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
290 | { |
456 | { |
291 | alloc = cb; |
457 | alloc = cb; |
292 | } |
458 | } |
293 | |
459 | |
294 | inline_speed void * |
460 | inline_speed void * |
295 | ev_realloc (void *ptr, long size) |
461 | ev_realloc (void *ptr, long size) |
296 | { |
462 | { |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
463 | ptr = alloc (ptr, size); |
298 | |
464 | |
299 | if (!ptr && size) |
465 | if (!ptr && size) |
300 | { |
466 | { |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
467 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
302 | abort (); |
468 | abort (); |
… | |
… | |
313 | typedef struct |
479 | typedef struct |
314 | { |
480 | { |
315 | WL head; |
481 | WL head; |
316 | unsigned char events; |
482 | unsigned char events; |
317 | unsigned char reify; |
483 | unsigned char reify; |
|
|
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
|
|
485 | unsigned char unused; |
|
|
486 | #if EV_USE_EPOLL |
|
|
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
488 | #endif |
318 | #if EV_SELECT_IS_WINSOCKET |
489 | #if EV_SELECT_IS_WINSOCKET |
319 | SOCKET handle; |
490 | SOCKET handle; |
320 | #endif |
491 | #endif |
321 | } ANFD; |
492 | } ANFD; |
322 | |
493 | |
… | |
… | |
325 | W w; |
496 | W w; |
326 | int events; |
497 | int events; |
327 | } ANPENDING; |
498 | } ANPENDING; |
328 | |
499 | |
329 | #if EV_USE_INOTIFY |
500 | #if EV_USE_INOTIFY |
|
|
501 | /* hash table entry per inotify-id */ |
330 | typedef struct |
502 | typedef struct |
331 | { |
503 | { |
332 | WL head; |
504 | WL head; |
333 | } ANFS; |
505 | } ANFS; |
|
|
506 | #endif |
|
|
507 | |
|
|
508 | /* Heap Entry */ |
|
|
509 | #if EV_HEAP_CACHE_AT |
|
|
510 | typedef struct { |
|
|
511 | ev_tstamp at; |
|
|
512 | WT w; |
|
|
513 | } ANHE; |
|
|
514 | |
|
|
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
518 | #else |
|
|
519 | typedef WT ANHE; |
|
|
520 | |
|
|
521 | #define ANHE_w(he) (he) |
|
|
522 | #define ANHE_at(he) (he)->at |
|
|
523 | #define ANHE_at_cache(he) |
334 | #endif |
524 | #endif |
335 | |
525 | |
336 | #if EV_MULTIPLICITY |
526 | #if EV_MULTIPLICITY |
337 | |
527 | |
338 | struct ev_loop |
528 | struct ev_loop |
… | |
… | |
396 | { |
586 | { |
397 | return ev_rt_now; |
587 | return ev_rt_now; |
398 | } |
588 | } |
399 | #endif |
589 | #endif |
400 | |
590 | |
401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
591 | void |
|
|
592 | ev_sleep (ev_tstamp delay) |
|
|
593 | { |
|
|
594 | if (delay > 0.) |
|
|
595 | { |
|
|
596 | #if EV_USE_NANOSLEEP |
|
|
597 | struct timespec ts; |
|
|
598 | |
|
|
599 | ts.tv_sec = (time_t)delay; |
|
|
600 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
601 | |
|
|
602 | nanosleep (&ts, 0); |
|
|
603 | #elif defined(_WIN32) |
|
|
604 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
605 | #else |
|
|
606 | struct timeval tv; |
|
|
607 | |
|
|
608 | tv.tv_sec = (time_t)delay; |
|
|
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
610 | |
|
|
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
613 | /* by older ones */ |
|
|
614 | select (0, 0, 0, 0, &tv); |
|
|
615 | #endif |
|
|
616 | } |
|
|
617 | } |
|
|
618 | |
|
|
619 | /*****************************************************************************/ |
|
|
620 | |
|
|
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
622 | |
|
|
623 | int inline_size |
|
|
624 | array_nextsize (int elem, int cur, int cnt) |
|
|
625 | { |
|
|
626 | int ncur = cur + 1; |
|
|
627 | |
|
|
628 | do |
|
|
629 | ncur <<= 1; |
|
|
630 | while (cnt > ncur); |
|
|
631 | |
|
|
632 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
633 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
634 | { |
|
|
635 | ncur *= elem; |
|
|
636 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
637 | ncur = ncur - sizeof (void *) * 4; |
|
|
638 | ncur /= elem; |
|
|
639 | } |
|
|
640 | |
|
|
641 | return ncur; |
|
|
642 | } |
|
|
643 | |
|
|
644 | static noinline void * |
|
|
645 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
646 | { |
|
|
647 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
648 | return ev_realloc (base, elem * *cur); |
|
|
649 | } |
|
|
650 | |
|
|
651 | #define array_init_zero(base,count) \ |
|
|
652 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
402 | |
653 | |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
654 | #define array_needsize(type,base,cur,cnt,init) \ |
404 | if (expect_false ((cnt) > cur)) \ |
655 | if (expect_false ((cnt) > (cur))) \ |
405 | { \ |
656 | { \ |
406 | int newcnt = cur; \ |
657 | int ocur_ = (cur); \ |
407 | do \ |
658 | (base) = (type *)array_realloc \ |
408 | { \ |
659 | (sizeof (type), (base), &(cur), (cnt)); \ |
409 | newcnt = array_roundsize (type, newcnt << 1); \ |
660 | init ((base) + (ocur_), (cur) - ocur_); \ |
410 | } \ |
|
|
411 | while ((cnt) > newcnt); \ |
|
|
412 | \ |
|
|
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
414 | init (base + cur, newcnt - cur); \ |
|
|
415 | cur = newcnt; \ |
|
|
416 | } |
661 | } |
417 | |
662 | |
|
|
663 | #if 0 |
418 | #define array_slim(type,stem) \ |
664 | #define array_slim(type,stem) \ |
419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
665 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
420 | { \ |
666 | { \ |
421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
667 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
668 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
424 | } |
670 | } |
|
|
671 | #endif |
425 | |
672 | |
426 | #define array_free(stem, idx) \ |
673 | #define array_free(stem, idx) \ |
427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
428 | |
675 | |
429 | /*****************************************************************************/ |
676 | /*****************************************************************************/ |
430 | |
677 | |
431 | void noinline |
678 | void noinline |
432 | ev_feed_event (EV_P_ void *w, int revents) |
679 | ev_feed_event (EV_P_ void *w, int revents) |
433 | { |
680 | { |
434 | W w_ = (W)w; |
681 | W w_ = (W)w; |
|
|
682 | int pri = ABSPRI (w_); |
435 | |
683 | |
436 | if (expect_false (w_->pending)) |
684 | if (expect_false (w_->pending)) |
|
|
685 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
686 | else |
437 | { |
687 | { |
|
|
688 | w_->pending = ++pendingcnt [pri]; |
|
|
689 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
690 | pendings [pri][w_->pending - 1].w = w_; |
438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
691 | pendings [pri][w_->pending - 1].events = revents; |
439 | return; |
|
|
440 | } |
692 | } |
441 | |
|
|
442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
693 | } |
447 | |
694 | |
448 | void inline_size |
695 | void inline_speed |
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
450 | { |
697 | { |
451 | int i; |
698 | int i; |
452 | |
699 | |
453 | for (i = 0; i < eventcnt; ++i) |
700 | for (i = 0; i < eventcnt; ++i) |
454 | ev_feed_event (EV_A_ events [i], type); |
701 | ev_feed_event (EV_A_ events [i], type); |
455 | } |
702 | } |
456 | |
703 | |
457 | /*****************************************************************************/ |
704 | /*****************************************************************************/ |
458 | |
705 | |
459 | void inline_size |
|
|
460 | anfds_init (ANFD *base, int count) |
|
|
461 | { |
|
|
462 | while (count--) |
|
|
463 | { |
|
|
464 | base->head = 0; |
|
|
465 | base->events = EV_NONE; |
|
|
466 | base->reify = 0; |
|
|
467 | |
|
|
468 | ++base; |
|
|
469 | } |
|
|
470 | } |
|
|
471 | |
|
|
472 | void inline_speed |
706 | void inline_speed |
473 | fd_event (EV_P_ int fd, int revents) |
707 | fd_event (EV_P_ int fd, int revents) |
474 | { |
708 | { |
475 | ANFD *anfd = anfds + fd; |
709 | ANFD *anfd = anfds + fd; |
476 | ev_io *w; |
710 | ev_io *w; |
… | |
… | |
485 | } |
719 | } |
486 | |
720 | |
487 | void |
721 | void |
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
489 | { |
723 | { |
|
|
724 | if (fd >= 0 && fd < anfdmax) |
490 | fd_event (EV_A_ fd, revents); |
725 | fd_event (EV_A_ fd, revents); |
491 | } |
726 | } |
492 | |
727 | |
493 | void inline_size |
728 | void inline_size |
494 | fd_reify (EV_P) |
729 | fd_reify (EV_P) |
495 | { |
730 | { |
… | |
… | |
499 | { |
734 | { |
500 | int fd = fdchanges [i]; |
735 | int fd = fdchanges [i]; |
501 | ANFD *anfd = anfds + fd; |
736 | ANFD *anfd = anfds + fd; |
502 | ev_io *w; |
737 | ev_io *w; |
503 | |
738 | |
504 | int events = 0; |
739 | unsigned char events = 0; |
505 | |
740 | |
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
741 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
507 | events |= w->events; |
742 | events |= (unsigned char)w->events; |
508 | |
743 | |
509 | #if EV_SELECT_IS_WINSOCKET |
744 | #if EV_SELECT_IS_WINSOCKET |
510 | if (events) |
745 | if (events) |
511 | { |
746 | { |
512 | unsigned long argp; |
747 | unsigned long arg; |
|
|
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
750 | #else |
513 | anfd->handle = _get_osfhandle (fd); |
751 | anfd->handle = _get_osfhandle (fd); |
|
|
752 | #endif |
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
753 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
515 | } |
754 | } |
516 | #endif |
755 | #endif |
517 | |
756 | |
|
|
757 | { |
|
|
758 | unsigned char o_events = anfd->events; |
|
|
759 | unsigned char o_reify = anfd->reify; |
|
|
760 | |
518 | anfd->reify = 0; |
761 | anfd->reify = 0; |
519 | |
|
|
520 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
521 | anfd->events = events; |
762 | anfd->events = events; |
|
|
763 | |
|
|
764 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
765 | backend_modify (EV_A_ fd, o_events, events); |
|
|
766 | } |
522 | } |
767 | } |
523 | |
768 | |
524 | fdchangecnt = 0; |
769 | fdchangecnt = 0; |
525 | } |
770 | } |
526 | |
771 | |
527 | void inline_size |
772 | void inline_size |
528 | fd_change (EV_P_ int fd) |
773 | fd_change (EV_P_ int fd, int flags) |
529 | { |
774 | { |
530 | if (expect_false (anfds [fd].reify)) |
775 | unsigned char reify = anfds [fd].reify; |
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
776 | anfds [fd].reify |= flags; |
534 | |
777 | |
|
|
778 | if (expect_true (!reify)) |
|
|
779 | { |
535 | ++fdchangecnt; |
780 | ++fdchangecnt; |
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
537 | fdchanges [fdchangecnt - 1] = fd; |
782 | fdchanges [fdchangecnt - 1] = fd; |
|
|
783 | } |
538 | } |
784 | } |
539 | |
785 | |
540 | void inline_speed |
786 | void inline_speed |
541 | fd_kill (EV_P_ int fd) |
787 | fd_kill (EV_P_ int fd) |
542 | { |
788 | { |
… | |
… | |
565 | { |
811 | { |
566 | int fd; |
812 | int fd; |
567 | |
813 | |
568 | for (fd = 0; fd < anfdmax; ++fd) |
814 | for (fd = 0; fd < anfdmax; ++fd) |
569 | if (anfds [fd].events) |
815 | if (anfds [fd].events) |
570 | if (!fd_valid (fd) == -1 && errno == EBADF) |
816 | if (!fd_valid (fd) && errno == EBADF) |
571 | fd_kill (EV_A_ fd); |
817 | fd_kill (EV_A_ fd); |
572 | } |
818 | } |
573 | |
819 | |
574 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
820 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
575 | static void noinline |
821 | static void noinline |
… | |
… | |
593 | |
839 | |
594 | for (fd = 0; fd < anfdmax; ++fd) |
840 | for (fd = 0; fd < anfdmax; ++fd) |
595 | if (anfds [fd].events) |
841 | if (anfds [fd].events) |
596 | { |
842 | { |
597 | anfds [fd].events = 0; |
843 | anfds [fd].events = 0; |
|
|
844 | anfds [fd].emask = 0; |
598 | fd_change (EV_A_ fd); |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
599 | } |
846 | } |
600 | } |
847 | } |
601 | |
848 | |
602 | /*****************************************************************************/ |
849 | /*****************************************************************************/ |
603 | |
850 | |
|
|
851 | /* |
|
|
852 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
853 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
854 | * the branching factor of the d-tree. |
|
|
855 | */ |
|
|
856 | |
|
|
857 | /* |
|
|
858 | * at the moment we allow libev the luxury of two heaps, |
|
|
859 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
860 | * which is more cache-efficient. |
|
|
861 | * the difference is about 5% with 50000+ watchers. |
|
|
862 | */ |
|
|
863 | #if EV_USE_4HEAP |
|
|
864 | |
|
|
865 | #define DHEAP 4 |
|
|
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
869 | |
|
|
870 | /* away from the root */ |
604 | void inline_speed |
871 | void inline_speed |
605 | upheap (WT *heap, int k) |
872 | downheap (ANHE *heap, int N, int k) |
606 | { |
873 | { |
607 | WT w = heap [k]; |
874 | ANHE he = heap [k]; |
|
|
875 | ANHE *E = heap + N + HEAP0; |
608 | |
876 | |
609 | while (k && heap [k >> 1]->at > w->at) |
877 | for (;;) |
610 | { |
|
|
611 | heap [k] = heap [k >> 1]; |
|
|
612 | ((W)heap [k])->active = k + 1; |
|
|
613 | k >>= 1; |
|
|
614 | } |
878 | { |
|
|
879 | ev_tstamp minat; |
|
|
880 | ANHE *minpos; |
|
|
881 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
615 | |
882 | |
|
|
883 | /* find minimum child */ |
|
|
884 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
885 | { |
|
|
886 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
887 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
888 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
889 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
890 | } |
|
|
891 | else if (pos < E) |
|
|
892 | { |
|
|
893 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
894 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
895 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
896 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
897 | } |
|
|
898 | else |
|
|
899 | break; |
|
|
900 | |
|
|
901 | if (ANHE_at (he) <= minat) |
|
|
902 | break; |
|
|
903 | |
|
|
904 | heap [k] = *minpos; |
|
|
905 | ev_active (ANHE_w (*minpos)) = k; |
|
|
906 | |
|
|
907 | k = minpos - heap; |
|
|
908 | } |
|
|
909 | |
616 | heap [k] = w; |
910 | heap [k] = he; |
617 | ((W)heap [k])->active = k + 1; |
911 | ev_active (ANHE_w (he)) = k; |
618 | |
|
|
619 | } |
912 | } |
620 | |
913 | |
|
|
914 | #else /* 4HEAP */ |
|
|
915 | |
|
|
916 | #define HEAP0 1 |
|
|
917 | #define HPARENT(k) ((k) >> 1) |
|
|
918 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
919 | |
|
|
920 | /* away from the root */ |
621 | void inline_speed |
921 | void inline_speed |
622 | downheap (WT *heap, int N, int k) |
922 | downheap (ANHE *heap, int N, int k) |
623 | { |
923 | { |
624 | WT w = heap [k]; |
924 | ANHE he = heap [k]; |
625 | |
925 | |
626 | while (k < (N >> 1)) |
926 | for (;;) |
627 | { |
927 | { |
628 | int j = k << 1; |
928 | int c = k << 1; |
629 | |
929 | |
630 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
930 | if (c > N + HEAP0 - 1) |
631 | ++j; |
|
|
632 | |
|
|
633 | if (w->at <= heap [j]->at) |
|
|
634 | break; |
931 | break; |
635 | |
932 | |
|
|
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
934 | ? 1 : 0; |
|
|
935 | |
|
|
936 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
937 | break; |
|
|
938 | |
636 | heap [k] = heap [j]; |
939 | heap [k] = heap [c]; |
637 | ((W)heap [k])->active = k + 1; |
940 | ev_active (ANHE_w (heap [k])) = k; |
|
|
941 | |
638 | k = j; |
942 | k = c; |
639 | } |
943 | } |
640 | |
944 | |
641 | heap [k] = w; |
945 | heap [k] = he; |
642 | ((W)heap [k])->active = k + 1; |
946 | ev_active (ANHE_w (he)) = k; |
|
|
947 | } |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | /* towards the root */ |
|
|
951 | void inline_speed |
|
|
952 | upheap (ANHE *heap, int k) |
|
|
953 | { |
|
|
954 | ANHE he = heap [k]; |
|
|
955 | |
|
|
956 | for (;;) |
|
|
957 | { |
|
|
958 | int p = HPARENT (k); |
|
|
959 | |
|
|
960 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
961 | break; |
|
|
962 | |
|
|
963 | heap [k] = heap [p]; |
|
|
964 | ev_active (ANHE_w (heap [k])) = k; |
|
|
965 | k = p; |
|
|
966 | } |
|
|
967 | |
|
|
968 | heap [k] = he; |
|
|
969 | ev_active (ANHE_w (he)) = k; |
643 | } |
970 | } |
644 | |
971 | |
645 | void inline_size |
972 | void inline_size |
646 | adjustheap (WT *heap, int N, int k) |
973 | adjustheap (ANHE *heap, int N, int k) |
647 | { |
974 | { |
|
|
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
648 | upheap (heap, k); |
976 | upheap (heap, k); |
|
|
977 | else |
649 | downheap (heap, N, k); |
978 | downheap (heap, N, k); |
|
|
979 | } |
|
|
980 | |
|
|
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
982 | void inline_size |
|
|
983 | reheap (ANHE *heap, int N) |
|
|
984 | { |
|
|
985 | int i; |
|
|
986 | |
|
|
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
988 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
989 | for (i = 0; i < N; ++i) |
|
|
990 | upheap (heap, i + HEAP0); |
650 | } |
991 | } |
651 | |
992 | |
652 | /*****************************************************************************/ |
993 | /*****************************************************************************/ |
653 | |
994 | |
654 | typedef struct |
995 | typedef struct |
655 | { |
996 | { |
656 | WL head; |
997 | WL head; |
657 | sig_atomic_t volatile gotsig; |
998 | EV_ATOMIC_T gotsig; |
658 | } ANSIG; |
999 | } ANSIG; |
659 | |
1000 | |
660 | static ANSIG *signals; |
1001 | static ANSIG *signals; |
661 | static int signalmax; |
1002 | static int signalmax; |
662 | |
1003 | |
663 | static int sigpipe [2]; |
1004 | static EV_ATOMIC_T gotsig; |
664 | static sig_atomic_t volatile gotsig; |
|
|
665 | static ev_io sigev; |
|
|
666 | |
1005 | |
|
|
1006 | /*****************************************************************************/ |
|
|
1007 | |
667 | void inline_size |
1008 | void inline_speed |
668 | signals_init (ANSIG *base, int count) |
|
|
669 | { |
|
|
670 | while (count--) |
|
|
671 | { |
|
|
672 | base->head = 0; |
|
|
673 | base->gotsig = 0; |
|
|
674 | |
|
|
675 | ++base; |
|
|
676 | } |
|
|
677 | } |
|
|
678 | |
|
|
679 | static void |
|
|
680 | sighandler (int signum) |
|
|
681 | { |
|
|
682 | #if _WIN32 |
|
|
683 | signal (signum, sighandler); |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | signals [signum - 1].gotsig = 1; |
|
|
687 | |
|
|
688 | if (!gotsig) |
|
|
689 | { |
|
|
690 | int old_errno = errno; |
|
|
691 | gotsig = 1; |
|
|
692 | write (sigpipe [1], &signum, 1); |
|
|
693 | errno = old_errno; |
|
|
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void noinline |
|
|
698 | ev_feed_signal_event (EV_P_ int signum) |
|
|
699 | { |
|
|
700 | WL w; |
|
|
701 | |
|
|
702 | #if EV_MULTIPLICITY |
|
|
703 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
704 | #endif |
|
|
705 | |
|
|
706 | --signum; |
|
|
707 | |
|
|
708 | if (signum < 0 || signum >= signalmax) |
|
|
709 | return; |
|
|
710 | |
|
|
711 | signals [signum].gotsig = 0; |
|
|
712 | |
|
|
713 | for (w = signals [signum].head; w; w = w->next) |
|
|
714 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
715 | } |
|
|
716 | |
|
|
717 | static void |
|
|
718 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
719 | { |
|
|
720 | int signum; |
|
|
721 | |
|
|
722 | read (sigpipe [0], &revents, 1); |
|
|
723 | gotsig = 0; |
|
|
724 | |
|
|
725 | for (signum = signalmax; signum--; ) |
|
|
726 | if (signals [signum].gotsig) |
|
|
727 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void inline_size |
|
|
731 | fd_intern (int fd) |
1009 | fd_intern (int fd) |
732 | { |
1010 | { |
733 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
734 | int arg = 1; |
1012 | unsigned long arg = 1; |
735 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
736 | #else |
1014 | #else |
737 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1015 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
738 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1016 | fcntl (fd, F_SETFL, O_NONBLOCK); |
739 | #endif |
1017 | #endif |
740 | } |
1018 | } |
741 | |
1019 | |
742 | static void noinline |
1020 | static void noinline |
743 | siginit (EV_P) |
1021 | evpipe_init (EV_P) |
744 | { |
1022 | { |
|
|
1023 | if (!ev_is_active (&pipeev)) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1027 | { |
|
|
1028 | evpipe [0] = -1; |
|
|
1029 | fd_intern (evfd); |
|
|
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1031 | } |
|
|
1032 | else |
|
|
1033 | #endif |
|
|
1034 | { |
|
|
1035 | while (pipe (evpipe)) |
|
|
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1037 | |
745 | fd_intern (sigpipe [0]); |
1038 | fd_intern (evpipe [0]); |
746 | fd_intern (sigpipe [1]); |
1039 | fd_intern (evpipe [1]); |
|
|
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1041 | } |
747 | |
1042 | |
748 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
749 | ev_io_start (EV_A_ &sigev); |
1043 | ev_io_start (EV_A_ &pipeev); |
750 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | void inline_size |
|
|
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1050 | { |
|
|
1051 | if (!*flag) |
|
|
1052 | { |
|
|
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1054 | |
|
|
1055 | *flag = 1; |
|
|
1056 | |
|
|
1057 | #if EV_USE_EVENTFD |
|
|
1058 | if (evfd >= 0) |
|
|
1059 | { |
|
|
1060 | uint64_t counter = 1; |
|
|
1061 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | #endif |
|
|
1065 | write (evpipe [1], &old_errno, 1); |
|
|
1066 | |
|
|
1067 | errno = old_errno; |
|
|
1068 | } |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | static void |
|
|
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1073 | { |
|
|
1074 | #if EV_USE_EVENTFD |
|
|
1075 | if (evfd >= 0) |
|
|
1076 | { |
|
|
1077 | uint64_t counter; |
|
|
1078 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1079 | } |
|
|
1080 | else |
|
|
1081 | #endif |
|
|
1082 | { |
|
|
1083 | char dummy; |
|
|
1084 | read (evpipe [0], &dummy, 1); |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1088 | { |
|
|
1089 | int signum; |
|
|
1090 | gotsig = 0; |
|
|
1091 | |
|
|
1092 | for (signum = signalmax; signum--; ) |
|
|
1093 | if (signals [signum].gotsig) |
|
|
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | #if EV_ASYNC_ENABLE |
|
|
1098 | if (gotasync) |
|
|
1099 | { |
|
|
1100 | int i; |
|
|
1101 | gotasync = 0; |
|
|
1102 | |
|
|
1103 | for (i = asynccnt; i--; ) |
|
|
1104 | if (asyncs [i]->sent) |
|
|
1105 | { |
|
|
1106 | asyncs [i]->sent = 0; |
|
|
1107 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1108 | } |
|
|
1109 | } |
|
|
1110 | #endif |
751 | } |
1111 | } |
752 | |
1112 | |
753 | /*****************************************************************************/ |
1113 | /*****************************************************************************/ |
754 | |
1114 | |
|
|
1115 | static void |
|
|
1116 | ev_sighandler (int signum) |
|
|
1117 | { |
|
|
1118 | #if EV_MULTIPLICITY |
|
|
1119 | struct ev_loop *loop = &default_loop_struct; |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | #if _WIN32 |
|
|
1123 | signal (signum, ev_sighandler); |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | signals [signum - 1].gotsig = 1; |
|
|
1127 | evpipe_write (EV_A_ &gotsig); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | void noinline |
|
|
1131 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1132 | { |
|
|
1133 | WL w; |
|
|
1134 | |
|
|
1135 | #if EV_MULTIPLICITY |
|
|
1136 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1137 | #endif |
|
|
1138 | |
|
|
1139 | --signum; |
|
|
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
|
|
1143 | |
|
|
1144 | signals [signum].gotsig = 0; |
|
|
1145 | |
|
|
1146 | for (w = signals [signum].head; w; w = w->next) |
|
|
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | /*****************************************************************************/ |
|
|
1151 | |
755 | static ev_child *childs [EV_PID_HASHSIZE]; |
1152 | static WL childs [EV_PID_HASHSIZE]; |
756 | |
1153 | |
757 | #ifndef _WIN32 |
1154 | #ifndef _WIN32 |
758 | |
1155 | |
759 | static ev_signal childev; |
1156 | static ev_signal childev; |
760 | |
1157 | |
|
|
1158 | #ifndef WIFCONTINUED |
|
|
1159 | # define WIFCONTINUED(status) 0 |
|
|
1160 | #endif |
|
|
1161 | |
761 | void inline_speed |
1162 | void inline_speed |
762 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
763 | { |
1164 | { |
764 | ev_child *w; |
1165 | ev_child *w; |
|
|
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
765 | |
1167 | |
766 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1168 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1169 | { |
767 | if (w->pid == pid || !w->pid) |
1170 | if ((w->pid == pid || !w->pid) |
|
|
1171 | && (!traced || (w->flags & 1))) |
768 | { |
1172 | { |
769 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
1173 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
770 | w->rpid = pid; |
1174 | w->rpid = pid; |
771 | w->rstatus = status; |
1175 | w->rstatus = status; |
772 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1176 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
773 | } |
1177 | } |
|
|
1178 | } |
774 | } |
1179 | } |
775 | |
1180 | |
776 | #ifndef WCONTINUED |
1181 | #ifndef WCONTINUED |
777 | # define WCONTINUED 0 |
1182 | # define WCONTINUED 0 |
778 | #endif |
1183 | #endif |
… | |
… | |
787 | if (!WCONTINUED |
1192 | if (!WCONTINUED |
788 | || errno != EINVAL |
1193 | || errno != EINVAL |
789 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1194 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
790 | return; |
1195 | return; |
791 | |
1196 | |
792 | /* make sure we are called again until all childs have been reaped */ |
1197 | /* make sure we are called again until all children have been reaped */ |
793 | /* we need to do it this way so that the callback gets called before we continue */ |
1198 | /* we need to do it this way so that the callback gets called before we continue */ |
794 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1199 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
795 | |
1200 | |
796 | child_reap (EV_A_ sw, pid, pid, status); |
1201 | child_reap (EV_A_ pid, pid, status); |
797 | if (EV_PID_HASHSIZE > 1) |
1202 | if (EV_PID_HASHSIZE > 1) |
798 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1203 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
799 | } |
1204 | } |
800 | |
1205 | |
801 | #endif |
1206 | #endif |
802 | |
1207 | |
803 | /*****************************************************************************/ |
1208 | /*****************************************************************************/ |
… | |
… | |
865 | /* kqueue is borked on everything but netbsd apparently */ |
1270 | /* kqueue is borked on everything but netbsd apparently */ |
866 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1271 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
867 | flags &= ~EVBACKEND_KQUEUE; |
1272 | flags &= ~EVBACKEND_KQUEUE; |
868 | #endif |
1273 | #endif |
869 | #ifdef __APPLE__ |
1274 | #ifdef __APPLE__ |
870 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1275 | // flags &= ~EVBACKEND_KQUEUE & ~EVBACKEND_POLL; for documentation |
871 | flags &= ~EVBACKEND_POLL; |
1276 | flags &= ~EVBACKEND_SELECT; |
872 | #endif |
1277 | #endif |
873 | |
1278 | |
874 | return flags; |
1279 | return flags; |
875 | } |
1280 | } |
876 | |
1281 | |
877 | unsigned int |
1282 | unsigned int |
878 | ev_embeddable_backends (void) |
1283 | ev_embeddable_backends (void) |
879 | { |
1284 | { |
880 | return EVBACKEND_EPOLL |
1285 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
881 | | EVBACKEND_KQUEUE |
1286 | |
882 | | EVBACKEND_PORT; |
1287 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1288 | /* please fix it and tell me how to detect the fix */ |
|
|
1289 | flags &= ~EVBACKEND_EPOLL; |
|
|
1290 | |
|
|
1291 | return flags; |
883 | } |
1292 | } |
884 | |
1293 | |
885 | unsigned int |
1294 | unsigned int |
886 | ev_backend (EV_P) |
1295 | ev_backend (EV_P) |
887 | { |
1296 | { |
888 | return backend; |
1297 | return backend; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | unsigned int |
|
|
1301 | ev_loop_count (EV_P) |
|
|
1302 | { |
|
|
1303 | return loop_count; |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | void |
|
|
1307 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1308 | { |
|
|
1309 | io_blocktime = interval; |
|
|
1310 | } |
|
|
1311 | |
|
|
1312 | void |
|
|
1313 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1314 | { |
|
|
1315 | timeout_blocktime = interval; |
889 | } |
1316 | } |
890 | |
1317 | |
891 | static void noinline |
1318 | static void noinline |
892 | loop_init (EV_P_ unsigned int flags) |
1319 | loop_init (EV_P_ unsigned int flags) |
893 | { |
1320 | { |
… | |
… | |
899 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1326 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
900 | have_monotonic = 1; |
1327 | have_monotonic = 1; |
901 | } |
1328 | } |
902 | #endif |
1329 | #endif |
903 | |
1330 | |
904 | ev_rt_now = ev_time (); |
1331 | ev_rt_now = ev_time (); |
905 | mn_now = get_clock (); |
1332 | mn_now = get_clock (); |
906 | now_floor = mn_now; |
1333 | now_floor = mn_now; |
907 | rtmn_diff = ev_rt_now - mn_now; |
1334 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1335 | |
|
|
1336 | io_blocktime = 0.; |
|
|
1337 | timeout_blocktime = 0.; |
|
|
1338 | backend = 0; |
|
|
1339 | backend_fd = -1; |
|
|
1340 | gotasync = 0; |
|
|
1341 | #if EV_USE_INOTIFY |
|
|
1342 | fs_fd = -2; |
|
|
1343 | #endif |
908 | |
1344 | |
909 | /* pid check not overridable via env */ |
1345 | /* pid check not overridable via env */ |
910 | #ifndef _WIN32 |
1346 | #ifndef _WIN32 |
911 | if (flags & EVFLAG_FORKCHECK) |
1347 | if (flags & EVFLAG_FORKCHECK) |
912 | curpid = getpid (); |
1348 | curpid = getpid (); |
… | |
… | |
915 | if (!(flags & EVFLAG_NOENV) |
1351 | if (!(flags & EVFLAG_NOENV) |
916 | && !enable_secure () |
1352 | && !enable_secure () |
917 | && getenv ("LIBEV_FLAGS")) |
1353 | && getenv ("LIBEV_FLAGS")) |
918 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1354 | flags = atoi (getenv ("LIBEV_FLAGS")); |
919 | |
1355 | |
920 | if (!(flags & 0x0000ffffUL)) |
1356 | if (!(flags & 0x0000ffffU)) |
921 | flags |= ev_recommended_backends (); |
1357 | flags |= ev_recommended_backends (); |
922 | |
|
|
923 | backend = 0; |
|
|
924 | backend_fd = -1; |
|
|
925 | #if EV_USE_INOTIFY |
|
|
926 | fs_fd = -2; |
|
|
927 | #endif |
|
|
928 | |
1358 | |
929 | #if EV_USE_PORT |
1359 | #if EV_USE_PORT |
930 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1360 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
931 | #endif |
1361 | #endif |
932 | #if EV_USE_KQUEUE |
1362 | #if EV_USE_KQUEUE |
… | |
… | |
940 | #endif |
1370 | #endif |
941 | #if EV_USE_SELECT |
1371 | #if EV_USE_SELECT |
942 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1372 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
943 | #endif |
1373 | #endif |
944 | |
1374 | |
945 | ev_init (&sigev, sigcb); |
1375 | ev_init (&pipeev, pipecb); |
946 | ev_set_priority (&sigev, EV_MAXPRI); |
1376 | ev_set_priority (&pipeev, EV_MAXPRI); |
947 | } |
1377 | } |
948 | } |
1378 | } |
949 | |
1379 | |
950 | static void noinline |
1380 | static void noinline |
951 | loop_destroy (EV_P) |
1381 | loop_destroy (EV_P) |
952 | { |
1382 | { |
953 | int i; |
1383 | int i; |
|
|
1384 | |
|
|
1385 | if (ev_is_active (&pipeev)) |
|
|
1386 | { |
|
|
1387 | ev_ref (EV_A); /* signal watcher */ |
|
|
1388 | ev_io_stop (EV_A_ &pipeev); |
|
|
1389 | |
|
|
1390 | #if EV_USE_EVENTFD |
|
|
1391 | if (evfd >= 0) |
|
|
1392 | close (evfd); |
|
|
1393 | #endif |
|
|
1394 | |
|
|
1395 | if (evpipe [0] >= 0) |
|
|
1396 | { |
|
|
1397 | close (evpipe [0]); |
|
|
1398 | close (evpipe [1]); |
|
|
1399 | } |
|
|
1400 | } |
954 | |
1401 | |
955 | #if EV_USE_INOTIFY |
1402 | #if EV_USE_INOTIFY |
956 | if (fs_fd >= 0) |
1403 | if (fs_fd >= 0) |
957 | close (fs_fd); |
1404 | close (fs_fd); |
958 | #endif |
1405 | #endif |
… | |
… | |
975 | #if EV_USE_SELECT |
1422 | #if EV_USE_SELECT |
976 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1423 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
977 | #endif |
1424 | #endif |
978 | |
1425 | |
979 | for (i = NUMPRI; i--; ) |
1426 | for (i = NUMPRI; i--; ) |
|
|
1427 | { |
980 | array_free (pending, [i]); |
1428 | array_free (pending, [i]); |
|
|
1429 | #if EV_IDLE_ENABLE |
|
|
1430 | array_free (idle, [i]); |
|
|
1431 | #endif |
|
|
1432 | } |
|
|
1433 | |
|
|
1434 | ev_free (anfds); anfdmax = 0; |
981 | |
1435 | |
982 | /* have to use the microsoft-never-gets-it-right macro */ |
1436 | /* have to use the microsoft-never-gets-it-right macro */ |
983 | array_free (fdchange, EMPTY0); |
1437 | array_free (fdchange, EMPTY); |
984 | array_free (timer, EMPTY0); |
1438 | array_free (timer, EMPTY); |
985 | #if EV_PERIODIC_ENABLE |
1439 | #if EV_PERIODIC_ENABLE |
986 | array_free (periodic, EMPTY0); |
1440 | array_free (periodic, EMPTY); |
987 | #endif |
1441 | #endif |
|
|
1442 | #if EV_FORK_ENABLE |
988 | array_free (idle, EMPTY0); |
1443 | array_free (fork, EMPTY); |
|
|
1444 | #endif |
989 | array_free (prepare, EMPTY0); |
1445 | array_free (prepare, EMPTY); |
990 | array_free (check, EMPTY0); |
1446 | array_free (check, EMPTY); |
|
|
1447 | #if EV_ASYNC_ENABLE |
|
|
1448 | array_free (async, EMPTY); |
|
|
1449 | #endif |
991 | |
1450 | |
992 | backend = 0; |
1451 | backend = 0; |
993 | } |
1452 | } |
994 | |
1453 | |
|
|
1454 | #if EV_USE_INOTIFY |
995 | void inline_size infy_fork (EV_P); |
1455 | void inline_size infy_fork (EV_P); |
|
|
1456 | #endif |
996 | |
1457 | |
997 | void inline_size |
1458 | void inline_size |
998 | loop_fork (EV_P) |
1459 | loop_fork (EV_P) |
999 | { |
1460 | { |
1000 | #if EV_USE_PORT |
1461 | #if EV_USE_PORT |
… | |
… | |
1008 | #endif |
1469 | #endif |
1009 | #if EV_USE_INOTIFY |
1470 | #if EV_USE_INOTIFY |
1010 | infy_fork (EV_A); |
1471 | infy_fork (EV_A); |
1011 | #endif |
1472 | #endif |
1012 | |
1473 | |
1013 | if (ev_is_active (&sigev)) |
1474 | if (ev_is_active (&pipeev)) |
1014 | { |
1475 | { |
1015 | /* default loop */ |
1476 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1477 | /* while we modify the fd vars */ |
|
|
1478 | gotsig = 1; |
|
|
1479 | #if EV_ASYNC_ENABLE |
|
|
1480 | gotasync = 1; |
|
|
1481 | #endif |
1016 | |
1482 | |
1017 | ev_ref (EV_A); |
1483 | ev_ref (EV_A); |
1018 | ev_io_stop (EV_A_ &sigev); |
1484 | ev_io_stop (EV_A_ &pipeev); |
|
|
1485 | |
|
|
1486 | #if EV_USE_EVENTFD |
|
|
1487 | if (evfd >= 0) |
|
|
1488 | close (evfd); |
|
|
1489 | #endif |
|
|
1490 | |
|
|
1491 | if (evpipe [0] >= 0) |
|
|
1492 | { |
1019 | close (sigpipe [0]); |
1493 | close (evpipe [0]); |
1020 | close (sigpipe [1]); |
1494 | close (evpipe [1]); |
|
|
1495 | } |
1021 | |
1496 | |
1022 | while (pipe (sigpipe)) |
|
|
1023 | syserr ("(libev) error creating pipe"); |
|
|
1024 | |
|
|
1025 | siginit (EV_A); |
1497 | evpipe_init (EV_A); |
|
|
1498 | /* now iterate over everything, in case we missed something */ |
|
|
1499 | pipecb (EV_A_ &pipeev, EV_READ); |
1026 | } |
1500 | } |
1027 | |
1501 | |
1028 | postfork = 0; |
1502 | postfork = 0; |
1029 | } |
1503 | } |
1030 | |
1504 | |
1031 | #if EV_MULTIPLICITY |
1505 | #if EV_MULTIPLICITY |
|
|
1506 | |
1032 | struct ev_loop * |
1507 | struct ev_loop * |
1033 | ev_loop_new (unsigned int flags) |
1508 | ev_loop_new (unsigned int flags) |
1034 | { |
1509 | { |
1035 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1510 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1036 | |
1511 | |
… | |
… | |
1052 | } |
1527 | } |
1053 | |
1528 | |
1054 | void |
1529 | void |
1055 | ev_loop_fork (EV_P) |
1530 | ev_loop_fork (EV_P) |
1056 | { |
1531 | { |
1057 | postfork = 1; |
1532 | postfork = 1; /* must be in line with ev_default_fork */ |
1058 | } |
1533 | } |
1059 | |
1534 | |
|
|
1535 | #if EV_VERIFY |
|
|
1536 | static void noinline |
|
|
1537 | verify_watcher (EV_P_ W w) |
|
|
1538 | { |
|
|
1539 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1540 | |
|
|
1541 | if (w->pending) |
|
|
1542 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | static void noinline |
|
|
1546 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1547 | { |
|
|
1548 | int i; |
|
|
1549 | |
|
|
1550 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1551 | { |
|
|
1552 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1553 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1554 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1555 | |
|
|
1556 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1557 | } |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | static void noinline |
|
|
1561 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1562 | { |
|
|
1563 | while (cnt--) |
|
|
1564 | { |
|
|
1565 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1566 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1567 | } |
|
|
1568 | } |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | void |
|
|
1572 | ev_loop_verify (EV_P) |
|
|
1573 | { |
|
|
1574 | #if EV_VERIFY |
|
|
1575 | int i; |
|
|
1576 | WL w; |
|
|
1577 | |
|
|
1578 | assert (activecnt >= -1); |
|
|
1579 | |
|
|
1580 | assert (fdchangemax >= fdchangecnt); |
|
|
1581 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1582 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1583 | |
|
|
1584 | assert (anfdmax >= 0); |
|
|
1585 | for (i = 0; i < anfdmax; ++i) |
|
|
1586 | for (w = anfds [i].head; w; w = w->next) |
|
|
1587 | { |
|
|
1588 | verify_watcher (EV_A_ (W)w); |
|
|
1589 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1590 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1591 | } |
|
|
1592 | |
|
|
1593 | assert (timermax >= timercnt); |
|
|
1594 | verify_heap (EV_A_ timers, timercnt); |
|
|
1595 | |
|
|
1596 | #if EV_PERIODIC_ENABLE |
|
|
1597 | assert (periodicmax >= periodiccnt); |
|
|
1598 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | for (i = NUMPRI; i--; ) |
|
|
1602 | { |
|
|
1603 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1604 | #if EV_IDLE_ENABLE |
|
|
1605 | assert (idleall >= 0); |
|
|
1606 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1607 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1608 | #endif |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | #if EV_FORK_ENABLE |
|
|
1612 | assert (forkmax >= forkcnt); |
|
|
1613 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1614 | #endif |
|
|
1615 | |
|
|
1616 | #if EV_ASYNC_ENABLE |
|
|
1617 | assert (asyncmax >= asynccnt); |
|
|
1618 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1619 | #endif |
|
|
1620 | |
|
|
1621 | assert (preparemax >= preparecnt); |
|
|
1622 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1623 | |
|
|
1624 | assert (checkmax >= checkcnt); |
|
|
1625 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1626 | |
|
|
1627 | # if 0 |
|
|
1628 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1629 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1060 | #endif |
1630 | # endif |
|
|
1631 | #endif |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | #endif /* multiplicity */ |
1061 | |
1635 | |
1062 | #if EV_MULTIPLICITY |
1636 | #if EV_MULTIPLICITY |
1063 | struct ev_loop * |
1637 | struct ev_loop * |
1064 | ev_default_loop_init (unsigned int flags) |
1638 | ev_default_loop_init (unsigned int flags) |
1065 | #else |
1639 | #else |
1066 | int |
1640 | int |
1067 | ev_default_loop (unsigned int flags) |
1641 | ev_default_loop (unsigned int flags) |
1068 | #endif |
1642 | #endif |
1069 | { |
1643 | { |
1070 | if (sigpipe [0] == sigpipe [1]) |
|
|
1071 | if (pipe (sigpipe)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | if (!ev_default_loop_ptr) |
1644 | if (!ev_default_loop_ptr) |
1075 | { |
1645 | { |
1076 | #if EV_MULTIPLICITY |
1646 | #if EV_MULTIPLICITY |
1077 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1647 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1078 | #else |
1648 | #else |
… | |
… | |
1081 | |
1651 | |
1082 | loop_init (EV_A_ flags); |
1652 | loop_init (EV_A_ flags); |
1083 | |
1653 | |
1084 | if (ev_backend (EV_A)) |
1654 | if (ev_backend (EV_A)) |
1085 | { |
1655 | { |
1086 | siginit (EV_A); |
|
|
1087 | |
|
|
1088 | #ifndef _WIN32 |
1656 | #ifndef _WIN32 |
1089 | ev_signal_init (&childev, childcb, SIGCHLD); |
1657 | ev_signal_init (&childev, childcb, SIGCHLD); |
1090 | ev_set_priority (&childev, EV_MAXPRI); |
1658 | ev_set_priority (&childev, EV_MAXPRI); |
1091 | ev_signal_start (EV_A_ &childev); |
1659 | ev_signal_start (EV_A_ &childev); |
1092 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1660 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1104 | { |
1672 | { |
1105 | #if EV_MULTIPLICITY |
1673 | #if EV_MULTIPLICITY |
1106 | struct ev_loop *loop = ev_default_loop_ptr; |
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
1107 | #endif |
1675 | #endif |
1108 | |
1676 | |
|
|
1677 | ev_default_loop_ptr = 0; |
|
|
1678 | |
1109 | #ifndef _WIN32 |
1679 | #ifndef _WIN32 |
1110 | ev_ref (EV_A); /* child watcher */ |
1680 | ev_ref (EV_A); /* child watcher */ |
1111 | ev_signal_stop (EV_A_ &childev); |
1681 | ev_signal_stop (EV_A_ &childev); |
1112 | #endif |
1682 | #endif |
1113 | |
1683 | |
1114 | ev_ref (EV_A); /* signal watcher */ |
|
|
1115 | ev_io_stop (EV_A_ &sigev); |
|
|
1116 | |
|
|
1117 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1118 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1119 | |
|
|
1120 | loop_destroy (EV_A); |
1684 | loop_destroy (EV_A); |
1121 | } |
1685 | } |
1122 | |
1686 | |
1123 | void |
1687 | void |
1124 | ev_default_fork (void) |
1688 | ev_default_fork (void) |
1125 | { |
1689 | { |
1126 | #if EV_MULTIPLICITY |
1690 | #if EV_MULTIPLICITY |
1127 | struct ev_loop *loop = ev_default_loop_ptr; |
1691 | struct ev_loop *loop = ev_default_loop_ptr; |
1128 | #endif |
1692 | #endif |
1129 | |
1693 | |
1130 | if (backend) |
1694 | postfork = 1; /* must be in line with ev_loop_fork */ |
1131 | postfork = 1; |
|
|
1132 | } |
1695 | } |
1133 | |
1696 | |
1134 | /*****************************************************************************/ |
1697 | /*****************************************************************************/ |
1135 | |
1698 | |
1136 | int inline_size |
1699 | void |
1137 | any_pending (EV_P) |
1700 | ev_invoke (EV_P_ void *w, int revents) |
1138 | { |
1701 | { |
1139 | int pri; |
1702 | EV_CB_INVOKE ((W)w, revents); |
1140 | |
|
|
1141 | for (pri = NUMPRI; pri--; ) |
|
|
1142 | if (pendingcnt [pri]) |
|
|
1143 | return 1; |
|
|
1144 | |
|
|
1145 | return 0; |
|
|
1146 | } |
1703 | } |
1147 | |
1704 | |
1148 | void inline_speed |
1705 | void inline_speed |
1149 | call_pending (EV_P) |
1706 | call_pending (EV_P) |
1150 | { |
1707 | { |
… | |
… | |
1159 | { |
1716 | { |
1160 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1717 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1161 | |
1718 | |
1162 | p->w->pending = 0; |
1719 | p->w->pending = 0; |
1163 | EV_CB_INVOKE (p->w, p->events); |
1720 | EV_CB_INVOKE (p->w, p->events); |
|
|
1721 | EV_FREQUENT_CHECK; |
1164 | } |
1722 | } |
1165 | } |
1723 | } |
1166 | } |
1724 | } |
1167 | |
1725 | |
|
|
1726 | #if EV_IDLE_ENABLE |
|
|
1727 | void inline_size |
|
|
1728 | idle_reify (EV_P) |
|
|
1729 | { |
|
|
1730 | if (expect_false (idleall)) |
|
|
1731 | { |
|
|
1732 | int pri; |
|
|
1733 | |
|
|
1734 | for (pri = NUMPRI; pri--; ) |
|
|
1735 | { |
|
|
1736 | if (pendingcnt [pri]) |
|
|
1737 | break; |
|
|
1738 | |
|
|
1739 | if (idlecnt [pri]) |
|
|
1740 | { |
|
|
1741 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1742 | break; |
|
|
1743 | } |
|
|
1744 | } |
|
|
1745 | } |
|
|
1746 | } |
|
|
1747 | #endif |
|
|
1748 | |
1168 | void inline_size |
1749 | void inline_size |
1169 | timers_reify (EV_P) |
1750 | timers_reify (EV_P) |
1170 | { |
1751 | { |
|
|
1752 | EV_FREQUENT_CHECK; |
|
|
1753 | |
1171 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1754 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1172 | { |
1755 | { |
1173 | ev_timer *w = timers [0]; |
1756 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1174 | |
1757 | |
1175 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1758 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1176 | |
1759 | |
1177 | /* first reschedule or stop timer */ |
1760 | /* first reschedule or stop timer */ |
1178 | if (w->repeat) |
1761 | if (w->repeat) |
1179 | { |
1762 | { |
|
|
1763 | ev_at (w) += w->repeat; |
|
|
1764 | if (ev_at (w) < mn_now) |
|
|
1765 | ev_at (w) = mn_now; |
|
|
1766 | |
1180 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1767 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1181 | |
1768 | |
1182 | ((WT)w)->at += w->repeat; |
1769 | ANHE_at_cache (timers [HEAP0]); |
1183 | if (((WT)w)->at < mn_now) |
|
|
1184 | ((WT)w)->at = mn_now; |
|
|
1185 | |
|
|
1186 | downheap ((WT *)timers, timercnt, 0); |
1770 | downheap (timers, timercnt, HEAP0); |
1187 | } |
1771 | } |
1188 | else |
1772 | else |
1189 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1773 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1190 | |
1774 | |
|
|
1775 | EV_FREQUENT_CHECK; |
1191 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1776 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1192 | } |
1777 | } |
1193 | } |
1778 | } |
1194 | |
1779 | |
1195 | #if EV_PERIODIC_ENABLE |
1780 | #if EV_PERIODIC_ENABLE |
1196 | void inline_size |
1781 | void inline_size |
1197 | periodics_reify (EV_P) |
1782 | periodics_reify (EV_P) |
1198 | { |
1783 | { |
|
|
1784 | EV_FREQUENT_CHECK; |
|
|
1785 | |
1199 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1786 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1200 | { |
1787 | { |
1201 | ev_periodic *w = periodics [0]; |
1788 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1202 | |
1789 | |
1203 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1790 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1204 | |
1791 | |
1205 | /* first reschedule or stop timer */ |
1792 | /* first reschedule or stop timer */ |
1206 | if (w->reschedule_cb) |
1793 | if (w->reschedule_cb) |
1207 | { |
1794 | { |
1208 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1795 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1796 | |
1209 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1797 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1798 | |
|
|
1799 | ANHE_at_cache (periodics [HEAP0]); |
1210 | downheap ((WT *)periodics, periodiccnt, 0); |
1800 | downheap (periodics, periodiccnt, HEAP0); |
1211 | } |
1801 | } |
1212 | else if (w->interval) |
1802 | else if (w->interval) |
1213 | { |
1803 | { |
1214 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1804 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1215 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1805 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1806 | /* this might happen because of floating point inexactness */ |
|
|
1807 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1808 | { |
|
|
1809 | ev_at (w) += w->interval; |
|
|
1810 | |
|
|
1811 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1812 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1813 | /* has effectively asked to get triggered more often than possible */ |
|
|
1814 | if (ev_at (w) < ev_rt_now) |
|
|
1815 | ev_at (w) = ev_rt_now; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | ANHE_at_cache (periodics [HEAP0]); |
1216 | downheap ((WT *)periodics, periodiccnt, 0); |
1819 | downheap (periodics, periodiccnt, HEAP0); |
1217 | } |
1820 | } |
1218 | else |
1821 | else |
1219 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1822 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1220 | |
1823 | |
|
|
1824 | EV_FREQUENT_CHECK; |
1221 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1825 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1222 | } |
1826 | } |
1223 | } |
1827 | } |
1224 | |
1828 | |
1225 | static void noinline |
1829 | static void noinline |
1226 | periodics_reschedule (EV_P) |
1830 | periodics_reschedule (EV_P) |
1227 | { |
1831 | { |
1228 | int i; |
1832 | int i; |
1229 | |
1833 | |
1230 | /* adjust periodics after time jump */ |
1834 | /* adjust periodics after time jump */ |
1231 | for (i = 0; i < periodiccnt; ++i) |
1835 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1232 | { |
1836 | { |
1233 | ev_periodic *w = periodics [i]; |
1837 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1234 | |
1838 | |
1235 | if (w->reschedule_cb) |
1839 | if (w->reschedule_cb) |
1236 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1840 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1237 | else if (w->interval) |
1841 | else if (w->interval) |
1238 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1842 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1843 | |
|
|
1844 | ANHE_at_cache (periodics [i]); |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | reheap (periodics, periodiccnt); |
|
|
1848 | } |
|
|
1849 | #endif |
|
|
1850 | |
|
|
1851 | void inline_speed |
|
|
1852 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1853 | { |
|
|
1854 | int i; |
|
|
1855 | |
|
|
1856 | #if EV_USE_MONOTONIC |
|
|
1857 | if (expect_true (have_monotonic)) |
1239 | } |
1858 | { |
|
|
1859 | ev_tstamp odiff = rtmn_diff; |
1240 | |
1860 | |
1241 | /* now rebuild the heap */ |
|
|
1242 | for (i = periodiccnt >> 1; i--; ) |
|
|
1243 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1244 | } |
|
|
1245 | #endif |
|
|
1246 | |
|
|
1247 | int inline_size |
|
|
1248 | time_update_monotonic (EV_P) |
|
|
1249 | { |
|
|
1250 | mn_now = get_clock (); |
1861 | mn_now = get_clock (); |
1251 | |
1862 | |
|
|
1863 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1864 | /* interpolate in the meantime */ |
1252 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1865 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1253 | { |
1866 | { |
1254 | ev_rt_now = rtmn_diff + mn_now; |
1867 | ev_rt_now = rtmn_diff + mn_now; |
1255 | return 0; |
1868 | return; |
1256 | } |
1869 | } |
1257 | else |
1870 | |
1258 | { |
|
|
1259 | now_floor = mn_now; |
1871 | now_floor = mn_now; |
1260 | ev_rt_now = ev_time (); |
1872 | ev_rt_now = ev_time (); |
1261 | return 1; |
|
|
1262 | } |
|
|
1263 | } |
|
|
1264 | |
1873 | |
1265 | void inline_size |
1874 | /* loop a few times, before making important decisions. |
1266 | time_update (EV_P) |
1875 | * on the choice of "4": one iteration isn't enough, |
1267 | { |
1876 | * in case we get preempted during the calls to |
1268 | int i; |
1877 | * ev_time and get_clock. a second call is almost guaranteed |
1269 | |
1878 | * to succeed in that case, though. and looping a few more times |
1270 | #if EV_USE_MONOTONIC |
1879 | * doesn't hurt either as we only do this on time-jumps or |
1271 | if (expect_true (have_monotonic)) |
1880 | * in the unlikely event of having been preempted here. |
1272 | { |
1881 | */ |
1273 | if (time_update_monotonic (EV_A)) |
1882 | for (i = 4; --i; ) |
1274 | { |
1883 | { |
1275 | ev_tstamp odiff = rtmn_diff; |
|
|
1276 | |
|
|
1277 | /* loop a few times, before making important decisions. |
|
|
1278 | * on the choice of "4": one iteration isn't enough, |
|
|
1279 | * in case we get preempted during the calls to |
|
|
1280 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1281 | * to succeed in that case, though. and looping a few more times |
|
|
1282 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1283 | * in the unlikely event of having been preempted here. |
|
|
1284 | */ |
|
|
1285 | for (i = 4; --i; ) |
|
|
1286 | { |
|
|
1287 | rtmn_diff = ev_rt_now - mn_now; |
1884 | rtmn_diff = ev_rt_now - mn_now; |
1288 | |
1885 | |
1289 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1886 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1290 | return; /* all is well */ |
1887 | return; /* all is well */ |
1291 | |
1888 | |
1292 | ev_rt_now = ev_time (); |
1889 | ev_rt_now = ev_time (); |
1293 | mn_now = get_clock (); |
1890 | mn_now = get_clock (); |
1294 | now_floor = mn_now; |
1891 | now_floor = mn_now; |
1295 | } |
1892 | } |
1296 | |
1893 | |
1297 | # if EV_PERIODIC_ENABLE |
1894 | # if EV_PERIODIC_ENABLE |
1298 | periodics_reschedule (EV_A); |
1895 | periodics_reschedule (EV_A); |
1299 | # endif |
1896 | # endif |
1300 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1897 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1301 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1898 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1302 | } |
|
|
1303 | } |
1899 | } |
1304 | else |
1900 | else |
1305 | #endif |
1901 | #endif |
1306 | { |
1902 | { |
1307 | ev_rt_now = ev_time (); |
1903 | ev_rt_now = ev_time (); |
1308 | |
1904 | |
1309 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1905 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1310 | { |
1906 | { |
1311 | #if EV_PERIODIC_ENABLE |
1907 | #if EV_PERIODIC_ENABLE |
1312 | periodics_reschedule (EV_A); |
1908 | periodics_reschedule (EV_A); |
1313 | #endif |
1909 | #endif |
1314 | |
|
|
1315 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1910 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1316 | for (i = 0; i < timercnt; ++i) |
1911 | for (i = 0; i < timercnt; ++i) |
|
|
1912 | { |
|
|
1913 | ANHE *he = timers + i + HEAP0; |
1317 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1914 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1915 | ANHE_at_cache (*he); |
|
|
1916 | } |
1318 | } |
1917 | } |
1319 | |
1918 | |
1320 | mn_now = ev_rt_now; |
1919 | mn_now = ev_rt_now; |
1321 | } |
1920 | } |
1322 | } |
1921 | } |
… | |
… | |
1331 | ev_unref (EV_P) |
1930 | ev_unref (EV_P) |
1332 | { |
1931 | { |
1333 | --activecnt; |
1932 | --activecnt; |
1334 | } |
1933 | } |
1335 | |
1934 | |
|
|
1935 | void |
|
|
1936 | ev_now_update (EV_P) |
|
|
1937 | { |
|
|
1938 | time_update (EV_A_ 1e100); |
|
|
1939 | } |
|
|
1940 | |
1336 | static int loop_done; |
1941 | static int loop_done; |
1337 | |
1942 | |
1338 | void |
1943 | void |
1339 | ev_loop (EV_P_ int flags) |
1944 | ev_loop (EV_P_ int flags) |
1340 | { |
1945 | { |
1341 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1946 | loop_done = EVUNLOOP_CANCEL; |
1342 | ? EVUNLOOP_ONE |
|
|
1343 | : EVUNLOOP_CANCEL; |
|
|
1344 | |
1947 | |
1345 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1948 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1346 | |
1949 | |
1347 | while (activecnt) |
1950 | do |
1348 | { |
1951 | { |
|
|
1952 | #if EV_VERIFY >= 2 |
|
|
1953 | ev_loop_verify (EV_A); |
|
|
1954 | #endif |
|
|
1955 | |
1349 | #ifndef _WIN32 |
1956 | #ifndef _WIN32 |
1350 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1957 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1351 | if (expect_false (getpid () != curpid)) |
1958 | if (expect_false (getpid () != curpid)) |
1352 | { |
1959 | { |
1353 | curpid = getpid (); |
1960 | curpid = getpid (); |
… | |
… | |
1363 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1970 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1364 | call_pending (EV_A); |
1971 | call_pending (EV_A); |
1365 | } |
1972 | } |
1366 | #endif |
1973 | #endif |
1367 | |
1974 | |
1368 | /* queue check watchers (and execute them) */ |
1975 | /* queue prepare watchers (and execute them) */ |
1369 | if (expect_false (preparecnt)) |
1976 | if (expect_false (preparecnt)) |
1370 | { |
1977 | { |
1371 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1978 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1372 | call_pending (EV_A); |
1979 | call_pending (EV_A); |
1373 | } |
1980 | } |
1374 | |
1981 | |
|
|
1982 | if (expect_false (!activecnt)) |
|
|
1983 | break; |
|
|
1984 | |
1375 | /* we might have forked, so reify kernel state if necessary */ |
1985 | /* we might have forked, so reify kernel state if necessary */ |
1376 | if (expect_false (postfork)) |
1986 | if (expect_false (postfork)) |
1377 | loop_fork (EV_A); |
1987 | loop_fork (EV_A); |
1378 | |
1988 | |
1379 | /* update fd-related kernel structures */ |
1989 | /* update fd-related kernel structures */ |
1380 | fd_reify (EV_A); |
1990 | fd_reify (EV_A); |
1381 | |
1991 | |
1382 | /* calculate blocking time */ |
1992 | /* calculate blocking time */ |
1383 | { |
1993 | { |
1384 | ev_tstamp block; |
1994 | ev_tstamp waittime = 0.; |
|
|
1995 | ev_tstamp sleeptime = 0.; |
1385 | |
1996 | |
1386 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1997 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1387 | block = 0.; /* do not block at all */ |
|
|
1388 | else |
|
|
1389 | { |
1998 | { |
1390 | /* update time to cancel out callback processing overhead */ |
1999 | /* update time to cancel out callback processing overhead */ |
1391 | #if EV_USE_MONOTONIC |
|
|
1392 | if (expect_true (have_monotonic)) |
|
|
1393 | time_update_monotonic (EV_A); |
2000 | time_update (EV_A_ 1e100); |
1394 | else |
|
|
1395 | #endif |
|
|
1396 | { |
|
|
1397 | ev_rt_now = ev_time (); |
|
|
1398 | mn_now = ev_rt_now; |
|
|
1399 | } |
|
|
1400 | |
2001 | |
1401 | block = MAX_BLOCKTIME; |
2002 | waittime = MAX_BLOCKTIME; |
1402 | |
2003 | |
1403 | if (timercnt) |
2004 | if (timercnt) |
1404 | { |
2005 | { |
1405 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2006 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1406 | if (block > to) block = to; |
2007 | if (waittime > to) waittime = to; |
1407 | } |
2008 | } |
1408 | |
2009 | |
1409 | #if EV_PERIODIC_ENABLE |
2010 | #if EV_PERIODIC_ENABLE |
1410 | if (periodiccnt) |
2011 | if (periodiccnt) |
1411 | { |
2012 | { |
1412 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2013 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1413 | if (block > to) block = to; |
2014 | if (waittime > to) waittime = to; |
1414 | } |
2015 | } |
1415 | #endif |
2016 | #endif |
1416 | |
2017 | |
1417 | if (expect_false (block < 0.)) block = 0.; |
2018 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2019 | waittime = timeout_blocktime; |
|
|
2020 | |
|
|
2021 | sleeptime = waittime - backend_fudge; |
|
|
2022 | |
|
|
2023 | if (expect_true (sleeptime > io_blocktime)) |
|
|
2024 | sleeptime = io_blocktime; |
|
|
2025 | |
|
|
2026 | if (sleeptime) |
|
|
2027 | { |
|
|
2028 | ev_sleep (sleeptime); |
|
|
2029 | waittime -= sleeptime; |
|
|
2030 | } |
1418 | } |
2031 | } |
1419 | |
2032 | |
|
|
2033 | ++loop_count; |
1420 | backend_poll (EV_A_ block); |
2034 | backend_poll (EV_A_ waittime); |
|
|
2035 | |
|
|
2036 | /* update ev_rt_now, do magic */ |
|
|
2037 | time_update (EV_A_ waittime + sleeptime); |
1421 | } |
2038 | } |
1422 | |
|
|
1423 | /* update ev_rt_now, do magic */ |
|
|
1424 | time_update (EV_A); |
|
|
1425 | |
2039 | |
1426 | /* queue pending timers and reschedule them */ |
2040 | /* queue pending timers and reschedule them */ |
1427 | timers_reify (EV_A); /* relative timers called last */ |
2041 | timers_reify (EV_A); /* relative timers called last */ |
1428 | #if EV_PERIODIC_ENABLE |
2042 | #if EV_PERIODIC_ENABLE |
1429 | periodics_reify (EV_A); /* absolute timers called first */ |
2043 | periodics_reify (EV_A); /* absolute timers called first */ |
1430 | #endif |
2044 | #endif |
1431 | |
2045 | |
|
|
2046 | #if EV_IDLE_ENABLE |
1432 | /* queue idle watchers unless other events are pending */ |
2047 | /* queue idle watchers unless other events are pending */ |
1433 | if (idlecnt && !any_pending (EV_A)) |
2048 | idle_reify (EV_A); |
1434 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2049 | #endif |
1435 | |
2050 | |
1436 | /* queue check watchers, to be executed first */ |
2051 | /* queue check watchers, to be executed first */ |
1437 | if (expect_false (checkcnt)) |
2052 | if (expect_false (checkcnt)) |
1438 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2053 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1439 | |
2054 | |
1440 | call_pending (EV_A); |
2055 | call_pending (EV_A); |
1441 | |
|
|
1442 | if (expect_false (loop_done)) |
|
|
1443 | break; |
|
|
1444 | } |
2056 | } |
|
|
2057 | while (expect_true ( |
|
|
2058 | activecnt |
|
|
2059 | && !loop_done |
|
|
2060 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2061 | )); |
1445 | |
2062 | |
1446 | if (loop_done == EVUNLOOP_ONE) |
2063 | if (loop_done == EVUNLOOP_ONE) |
1447 | loop_done = EVUNLOOP_CANCEL; |
2064 | loop_done = EVUNLOOP_CANCEL; |
1448 | } |
2065 | } |
1449 | |
2066 | |
… | |
… | |
1476 | head = &(*head)->next; |
2093 | head = &(*head)->next; |
1477 | } |
2094 | } |
1478 | } |
2095 | } |
1479 | |
2096 | |
1480 | void inline_speed |
2097 | void inline_speed |
1481 | ev_clear_pending (EV_P_ W w) |
2098 | clear_pending (EV_P_ W w) |
1482 | { |
2099 | { |
1483 | if (w->pending) |
2100 | if (w->pending) |
1484 | { |
2101 | { |
1485 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2102 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1486 | w->pending = 0; |
2103 | w->pending = 0; |
1487 | } |
2104 | } |
1488 | } |
2105 | } |
1489 | |
2106 | |
|
|
2107 | int |
|
|
2108 | ev_clear_pending (EV_P_ void *w) |
|
|
2109 | { |
|
|
2110 | W w_ = (W)w; |
|
|
2111 | int pending = w_->pending; |
|
|
2112 | |
|
|
2113 | if (expect_true (pending)) |
|
|
2114 | { |
|
|
2115 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2116 | w_->pending = 0; |
|
|
2117 | p->w = 0; |
|
|
2118 | return p->events; |
|
|
2119 | } |
|
|
2120 | else |
|
|
2121 | return 0; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | void inline_size |
|
|
2125 | pri_adjust (EV_P_ W w) |
|
|
2126 | { |
|
|
2127 | int pri = w->priority; |
|
|
2128 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2129 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2130 | w->priority = pri; |
|
|
2131 | } |
|
|
2132 | |
1490 | void inline_speed |
2133 | void inline_speed |
1491 | ev_start (EV_P_ W w, int active) |
2134 | ev_start (EV_P_ W w, int active) |
1492 | { |
2135 | { |
1493 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2136 | pri_adjust (EV_A_ w); |
1494 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1495 | |
|
|
1496 | w->active = active; |
2137 | w->active = active; |
1497 | ev_ref (EV_A); |
2138 | ev_ref (EV_A); |
1498 | } |
2139 | } |
1499 | |
2140 | |
1500 | void inline_size |
2141 | void inline_size |
… | |
… | |
1504 | w->active = 0; |
2145 | w->active = 0; |
1505 | } |
2146 | } |
1506 | |
2147 | |
1507 | /*****************************************************************************/ |
2148 | /*****************************************************************************/ |
1508 | |
2149 | |
1509 | void |
2150 | void noinline |
1510 | ev_io_start (EV_P_ ev_io *w) |
2151 | ev_io_start (EV_P_ ev_io *w) |
1511 | { |
2152 | { |
1512 | int fd = w->fd; |
2153 | int fd = w->fd; |
1513 | |
2154 | |
1514 | if (expect_false (ev_is_active (w))) |
2155 | if (expect_false (ev_is_active (w))) |
1515 | return; |
2156 | return; |
1516 | |
2157 | |
1517 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2158 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
2159 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2160 | |
|
|
2161 | EV_FREQUENT_CHECK; |
1518 | |
2162 | |
1519 | ev_start (EV_A_ (W)w, 1); |
2163 | ev_start (EV_A_ (W)w, 1); |
1520 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2164 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1521 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2165 | wlist_add (&anfds[fd].head, (WL)w); |
1522 | |
2166 | |
1523 | fd_change (EV_A_ fd); |
2167 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1524 | } |
2168 | w->events &= ~EV_IOFDSET; |
1525 | |
2169 | |
1526 | void |
2170 | EV_FREQUENT_CHECK; |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | void noinline |
1527 | ev_io_stop (EV_P_ ev_io *w) |
2174 | ev_io_stop (EV_P_ ev_io *w) |
1528 | { |
2175 | { |
1529 | ev_clear_pending (EV_A_ (W)w); |
2176 | clear_pending (EV_A_ (W)w); |
1530 | if (expect_false (!ev_is_active (w))) |
2177 | if (expect_false (!ev_is_active (w))) |
1531 | return; |
2178 | return; |
1532 | |
2179 | |
1533 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2180 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1534 | |
2181 | |
|
|
2182 | EV_FREQUENT_CHECK; |
|
|
2183 | |
1535 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2184 | wlist_del (&anfds[w->fd].head, (WL)w); |
1536 | ev_stop (EV_A_ (W)w); |
2185 | ev_stop (EV_A_ (W)w); |
1537 | |
2186 | |
1538 | fd_change (EV_A_ w->fd); |
2187 | fd_change (EV_A_ w->fd, 1); |
1539 | } |
|
|
1540 | |
2188 | |
1541 | void |
2189 | EV_FREQUENT_CHECK; |
|
|
2190 | } |
|
|
2191 | |
|
|
2192 | void noinline |
1542 | ev_timer_start (EV_P_ ev_timer *w) |
2193 | ev_timer_start (EV_P_ ev_timer *w) |
1543 | { |
2194 | { |
1544 | if (expect_false (ev_is_active (w))) |
2195 | if (expect_false (ev_is_active (w))) |
1545 | return; |
2196 | return; |
1546 | |
2197 | |
1547 | ((WT)w)->at += mn_now; |
2198 | ev_at (w) += mn_now; |
1548 | |
2199 | |
1549 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2200 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1550 | |
2201 | |
|
|
2202 | EV_FREQUENT_CHECK; |
|
|
2203 | |
|
|
2204 | ++timercnt; |
1551 | ev_start (EV_A_ (W)w, ++timercnt); |
2205 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1552 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2206 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1553 | timers [timercnt - 1] = w; |
2207 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1554 | upheap ((WT *)timers, timercnt - 1); |
2208 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2209 | upheap (timers, ev_active (w)); |
1555 | |
2210 | |
|
|
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
1556 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2213 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1557 | } |
2214 | } |
1558 | |
2215 | |
1559 | void |
2216 | void noinline |
1560 | ev_timer_stop (EV_P_ ev_timer *w) |
2217 | ev_timer_stop (EV_P_ ev_timer *w) |
1561 | { |
2218 | { |
1562 | ev_clear_pending (EV_A_ (W)w); |
2219 | clear_pending (EV_A_ (W)w); |
1563 | if (expect_false (!ev_is_active (w))) |
2220 | if (expect_false (!ev_is_active (w))) |
1564 | return; |
2221 | return; |
1565 | |
2222 | |
1566 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2223 | EV_FREQUENT_CHECK; |
1567 | |
2224 | |
1568 | { |
2225 | { |
1569 | int active = ((W)w)->active; |
2226 | int active = ev_active (w); |
1570 | |
2227 | |
|
|
2228 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2229 | |
|
|
2230 | --timercnt; |
|
|
2231 | |
1571 | if (expect_true (--active < --timercnt)) |
2232 | if (expect_true (active < timercnt + HEAP0)) |
1572 | { |
2233 | { |
1573 | timers [active] = timers [timercnt]; |
2234 | timers [active] = timers [timercnt + HEAP0]; |
1574 | adjustheap ((WT *)timers, timercnt, active); |
2235 | adjustheap (timers, timercnt, active); |
1575 | } |
2236 | } |
1576 | } |
2237 | } |
1577 | |
2238 | |
1578 | ((WT)w)->at -= mn_now; |
2239 | EV_FREQUENT_CHECK; |
|
|
2240 | |
|
|
2241 | ev_at (w) -= mn_now; |
1579 | |
2242 | |
1580 | ev_stop (EV_A_ (W)w); |
2243 | ev_stop (EV_A_ (W)w); |
1581 | } |
2244 | } |
1582 | |
2245 | |
1583 | void |
2246 | void noinline |
1584 | ev_timer_again (EV_P_ ev_timer *w) |
2247 | ev_timer_again (EV_P_ ev_timer *w) |
1585 | { |
2248 | { |
|
|
2249 | EV_FREQUENT_CHECK; |
|
|
2250 | |
1586 | if (ev_is_active (w)) |
2251 | if (ev_is_active (w)) |
1587 | { |
2252 | { |
1588 | if (w->repeat) |
2253 | if (w->repeat) |
1589 | { |
2254 | { |
1590 | ((WT)w)->at = mn_now + w->repeat; |
2255 | ev_at (w) = mn_now + w->repeat; |
|
|
2256 | ANHE_at_cache (timers [ev_active (w)]); |
1591 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2257 | adjustheap (timers, timercnt, ev_active (w)); |
1592 | } |
2258 | } |
1593 | else |
2259 | else |
1594 | ev_timer_stop (EV_A_ w); |
2260 | ev_timer_stop (EV_A_ w); |
1595 | } |
2261 | } |
1596 | else if (w->repeat) |
2262 | else if (w->repeat) |
1597 | { |
2263 | { |
1598 | w->at = w->repeat; |
2264 | ev_at (w) = w->repeat; |
1599 | ev_timer_start (EV_A_ w); |
2265 | ev_timer_start (EV_A_ w); |
1600 | } |
2266 | } |
|
|
2267 | |
|
|
2268 | EV_FREQUENT_CHECK; |
1601 | } |
2269 | } |
1602 | |
2270 | |
1603 | #if EV_PERIODIC_ENABLE |
2271 | #if EV_PERIODIC_ENABLE |
1604 | void |
2272 | void noinline |
1605 | ev_periodic_start (EV_P_ ev_periodic *w) |
2273 | ev_periodic_start (EV_P_ ev_periodic *w) |
1606 | { |
2274 | { |
1607 | if (expect_false (ev_is_active (w))) |
2275 | if (expect_false (ev_is_active (w))) |
1608 | return; |
2276 | return; |
1609 | |
2277 | |
1610 | if (w->reschedule_cb) |
2278 | if (w->reschedule_cb) |
1611 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2279 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1612 | else if (w->interval) |
2280 | else if (w->interval) |
1613 | { |
2281 | { |
1614 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2282 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1615 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2283 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1616 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2284 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1617 | } |
2285 | } |
|
|
2286 | else |
|
|
2287 | ev_at (w) = w->offset; |
1618 | |
2288 | |
|
|
2289 | EV_FREQUENT_CHECK; |
|
|
2290 | |
|
|
2291 | ++periodiccnt; |
1619 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2292 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1620 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2293 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1621 | periodics [periodiccnt - 1] = w; |
2294 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1622 | upheap ((WT *)periodics, periodiccnt - 1); |
2295 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2296 | upheap (periodics, ev_active (w)); |
1623 | |
2297 | |
|
|
2298 | EV_FREQUENT_CHECK; |
|
|
2299 | |
1624 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2300 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1625 | } |
2301 | } |
1626 | |
2302 | |
1627 | void |
2303 | void noinline |
1628 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2304 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1629 | { |
2305 | { |
1630 | ev_clear_pending (EV_A_ (W)w); |
2306 | clear_pending (EV_A_ (W)w); |
1631 | if (expect_false (!ev_is_active (w))) |
2307 | if (expect_false (!ev_is_active (w))) |
1632 | return; |
2308 | return; |
1633 | |
2309 | |
1634 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2310 | EV_FREQUENT_CHECK; |
1635 | |
2311 | |
1636 | { |
2312 | { |
1637 | int active = ((W)w)->active; |
2313 | int active = ev_active (w); |
1638 | |
2314 | |
|
|
2315 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2316 | |
|
|
2317 | --periodiccnt; |
|
|
2318 | |
1639 | if (expect_true (--active < --periodiccnt)) |
2319 | if (expect_true (active < periodiccnt + HEAP0)) |
1640 | { |
2320 | { |
1641 | periodics [active] = periodics [periodiccnt]; |
2321 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1642 | adjustheap ((WT *)periodics, periodiccnt, active); |
2322 | adjustheap (periodics, periodiccnt, active); |
1643 | } |
2323 | } |
1644 | } |
2324 | } |
1645 | |
2325 | |
|
|
2326 | EV_FREQUENT_CHECK; |
|
|
2327 | |
1646 | ev_stop (EV_A_ (W)w); |
2328 | ev_stop (EV_A_ (W)w); |
1647 | } |
2329 | } |
1648 | |
2330 | |
1649 | void |
2331 | void noinline |
1650 | ev_periodic_again (EV_P_ ev_periodic *w) |
2332 | ev_periodic_again (EV_P_ ev_periodic *w) |
1651 | { |
2333 | { |
1652 | /* TODO: use adjustheap and recalculation */ |
2334 | /* TODO: use adjustheap and recalculation */ |
1653 | ev_periodic_stop (EV_A_ w); |
2335 | ev_periodic_stop (EV_A_ w); |
1654 | ev_periodic_start (EV_A_ w); |
2336 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1657 | |
2339 | |
1658 | #ifndef SA_RESTART |
2340 | #ifndef SA_RESTART |
1659 | # define SA_RESTART 0 |
2341 | # define SA_RESTART 0 |
1660 | #endif |
2342 | #endif |
1661 | |
2343 | |
1662 | void |
2344 | void noinline |
1663 | ev_signal_start (EV_P_ ev_signal *w) |
2345 | ev_signal_start (EV_P_ ev_signal *w) |
1664 | { |
2346 | { |
1665 | #if EV_MULTIPLICITY |
2347 | #if EV_MULTIPLICITY |
1666 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2348 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1667 | #endif |
2349 | #endif |
1668 | if (expect_false (ev_is_active (w))) |
2350 | if (expect_false (ev_is_active (w))) |
1669 | return; |
2351 | return; |
1670 | |
2352 | |
1671 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2353 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1672 | |
2354 | |
|
|
2355 | evpipe_init (EV_A); |
|
|
2356 | |
|
|
2357 | EV_FREQUENT_CHECK; |
|
|
2358 | |
|
|
2359 | { |
|
|
2360 | #ifndef _WIN32 |
|
|
2361 | sigset_t full, prev; |
|
|
2362 | sigfillset (&full); |
|
|
2363 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2364 | #endif |
|
|
2365 | |
|
|
2366 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2367 | |
|
|
2368 | #ifndef _WIN32 |
|
|
2369 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2370 | #endif |
|
|
2371 | } |
|
|
2372 | |
1673 | ev_start (EV_A_ (W)w, 1); |
2373 | ev_start (EV_A_ (W)w, 1); |
1674 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1675 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2374 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1676 | |
2375 | |
1677 | if (!((WL)w)->next) |
2376 | if (!((WL)w)->next) |
1678 | { |
2377 | { |
1679 | #if _WIN32 |
2378 | #if _WIN32 |
1680 | signal (w->signum, sighandler); |
2379 | signal (w->signum, ev_sighandler); |
1681 | #else |
2380 | #else |
1682 | struct sigaction sa; |
2381 | struct sigaction sa; |
1683 | sa.sa_handler = sighandler; |
2382 | sa.sa_handler = ev_sighandler; |
1684 | sigfillset (&sa.sa_mask); |
2383 | sigfillset (&sa.sa_mask); |
1685 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2384 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1686 | sigaction (w->signum, &sa, 0); |
2385 | sigaction (w->signum, &sa, 0); |
1687 | #endif |
2386 | #endif |
1688 | } |
2387 | } |
1689 | } |
|
|
1690 | |
2388 | |
1691 | void |
2389 | EV_FREQUENT_CHECK; |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | void noinline |
1692 | ev_signal_stop (EV_P_ ev_signal *w) |
2393 | ev_signal_stop (EV_P_ ev_signal *w) |
1693 | { |
2394 | { |
1694 | ev_clear_pending (EV_A_ (W)w); |
2395 | clear_pending (EV_A_ (W)w); |
1695 | if (expect_false (!ev_is_active (w))) |
2396 | if (expect_false (!ev_is_active (w))) |
1696 | return; |
2397 | return; |
1697 | |
2398 | |
|
|
2399 | EV_FREQUENT_CHECK; |
|
|
2400 | |
1698 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2401 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1699 | ev_stop (EV_A_ (W)w); |
2402 | ev_stop (EV_A_ (W)w); |
1700 | |
2403 | |
1701 | if (!signals [w->signum - 1].head) |
2404 | if (!signals [w->signum - 1].head) |
1702 | signal (w->signum, SIG_DFL); |
2405 | signal (w->signum, SIG_DFL); |
|
|
2406 | |
|
|
2407 | EV_FREQUENT_CHECK; |
1703 | } |
2408 | } |
1704 | |
2409 | |
1705 | void |
2410 | void |
1706 | ev_child_start (EV_P_ ev_child *w) |
2411 | ev_child_start (EV_P_ ev_child *w) |
1707 | { |
2412 | { |
… | |
… | |
1709 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2414 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1710 | #endif |
2415 | #endif |
1711 | if (expect_false (ev_is_active (w))) |
2416 | if (expect_false (ev_is_active (w))) |
1712 | return; |
2417 | return; |
1713 | |
2418 | |
|
|
2419 | EV_FREQUENT_CHECK; |
|
|
2420 | |
1714 | ev_start (EV_A_ (W)w, 1); |
2421 | ev_start (EV_A_ (W)w, 1); |
1715 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2422 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2423 | |
|
|
2424 | EV_FREQUENT_CHECK; |
1716 | } |
2425 | } |
1717 | |
2426 | |
1718 | void |
2427 | void |
1719 | ev_child_stop (EV_P_ ev_child *w) |
2428 | ev_child_stop (EV_P_ ev_child *w) |
1720 | { |
2429 | { |
1721 | ev_clear_pending (EV_A_ (W)w); |
2430 | clear_pending (EV_A_ (W)w); |
1722 | if (expect_false (!ev_is_active (w))) |
2431 | if (expect_false (!ev_is_active (w))) |
1723 | return; |
2432 | return; |
1724 | |
2433 | |
|
|
2434 | EV_FREQUENT_CHECK; |
|
|
2435 | |
1725 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2436 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1726 | ev_stop (EV_A_ (W)w); |
2437 | ev_stop (EV_A_ (W)w); |
|
|
2438 | |
|
|
2439 | EV_FREQUENT_CHECK; |
1727 | } |
2440 | } |
1728 | |
2441 | |
1729 | #if EV_STAT_ENABLE |
2442 | #if EV_STAT_ENABLE |
1730 | |
2443 | |
1731 | # ifdef _WIN32 |
2444 | # ifdef _WIN32 |
1732 | # undef lstat |
2445 | # undef lstat |
1733 | # define lstat(a,b) _stati64 (a,b) |
2446 | # define lstat(a,b) _stati64 (a,b) |
1734 | # endif |
2447 | # endif |
1735 | |
2448 | |
1736 | #define DEF_STAT_INTERVAL 5.0074891 |
2449 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2450 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1737 | #define MIN_STAT_INTERVAL 0.1074891 |
2451 | #define MIN_STAT_INTERVAL 0.1074891 |
1738 | |
2452 | |
1739 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2453 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1740 | |
2454 | |
1741 | #if EV_USE_INOTIFY |
2455 | #if EV_USE_INOTIFY |
1742 | # define EV_INOTIFY_BUFSIZE 8192 |
2456 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1746 | { |
2460 | { |
1747 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2461 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
1748 | |
2462 | |
1749 | if (w->wd < 0) |
2463 | if (w->wd < 0) |
1750 | { |
2464 | { |
|
|
2465 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1751 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2466 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
1752 | |
2467 | |
1753 | /* monitor some parent directory for speedup hints */ |
2468 | /* monitor some parent directory for speedup hints */ |
|
|
2469 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2470 | /* but an efficiency issue only */ |
1754 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2471 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1755 | { |
2472 | { |
1756 | char path [4096]; |
2473 | char path [4096]; |
1757 | strcpy (path, w->path); |
2474 | strcpy (path, w->path); |
1758 | |
2475 | |
… | |
… | |
1761 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2478 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1762 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2479 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1763 | |
2480 | |
1764 | char *pend = strrchr (path, '/'); |
2481 | char *pend = strrchr (path, '/'); |
1765 | |
2482 | |
1766 | if (!pend) |
2483 | if (!pend || pend == path) |
1767 | break; /* whoops, no '/', complain to your admin */ |
2484 | break; |
1768 | |
2485 | |
1769 | *pend = 0; |
2486 | *pend = 0; |
1770 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2487 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1771 | } |
2488 | } |
1772 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2489 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1773 | } |
2490 | } |
1774 | } |
2491 | } |
1775 | else |
|
|
1776 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1777 | |
2492 | |
1778 | if (w->wd >= 0) |
2493 | if (w->wd >= 0) |
|
|
2494 | { |
1779 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2495 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2496 | |
|
|
2497 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2498 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2499 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2500 | struct statfs sfs; |
|
|
2501 | |
|
|
2502 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2503 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2504 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2505 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2506 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2507 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2508 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2509 | return; |
|
|
2510 | |
|
|
2511 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2512 | ev_timer_again (EV_A_ &w->timer); |
|
|
2513 | } |
1780 | } |
2514 | } |
1781 | |
2515 | |
1782 | static void noinline |
2516 | static void noinline |
1783 | infy_del (EV_P_ ev_stat *w) |
2517 | infy_del (EV_P_ ev_stat *w) |
1784 | { |
2518 | { |
… | |
… | |
1798 | |
2532 | |
1799 | static void noinline |
2533 | static void noinline |
1800 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2534 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1801 | { |
2535 | { |
1802 | if (slot < 0) |
2536 | if (slot < 0) |
1803 | /* overflow, need to check for all hahs slots */ |
2537 | /* overflow, need to check for all hash slots */ |
1804 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2538 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1805 | infy_wd (EV_A_ slot, wd, ev); |
2539 | infy_wd (EV_A_ slot, wd, ev); |
1806 | else |
2540 | else |
1807 | { |
2541 | { |
1808 | WL w_; |
2542 | WL w_; |
… | |
… | |
1814 | |
2548 | |
1815 | if (w->wd == wd || wd == -1) |
2549 | if (w->wd == wd || wd == -1) |
1816 | { |
2550 | { |
1817 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2551 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1818 | { |
2552 | { |
|
|
2553 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1819 | w->wd = -1; |
2554 | w->wd = -1; |
1820 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2555 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1821 | } |
2556 | } |
1822 | |
2557 | |
1823 | stat_timer_cb (EV_A_ &w->timer, 0); |
2558 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1837 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2572 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1838 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2573 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1839 | } |
2574 | } |
1840 | |
2575 | |
1841 | void inline_size |
2576 | void inline_size |
|
|
2577 | check_2625 (EV_P) |
|
|
2578 | { |
|
|
2579 | /* kernels < 2.6.25 are borked |
|
|
2580 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2581 | */ |
|
|
2582 | struct utsname buf; |
|
|
2583 | int major, minor, micro; |
|
|
2584 | |
|
|
2585 | if (uname (&buf)) |
|
|
2586 | return; |
|
|
2587 | |
|
|
2588 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2589 | return; |
|
|
2590 | |
|
|
2591 | if (major < 2 |
|
|
2592 | || (major == 2 && minor < 6) |
|
|
2593 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2594 | return; |
|
|
2595 | |
|
|
2596 | fs_2625 = 1; |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | void inline_size |
1842 | infy_init (EV_P) |
2600 | infy_init (EV_P) |
1843 | { |
2601 | { |
1844 | if (fs_fd != -2) |
2602 | if (fs_fd != -2) |
1845 | return; |
2603 | return; |
|
|
2604 | |
|
|
2605 | fs_fd = -1; |
|
|
2606 | |
|
|
2607 | check_2625 (EV_A); |
1846 | |
2608 | |
1847 | fs_fd = inotify_init (); |
2609 | fs_fd = inotify_init (); |
1848 | |
2610 | |
1849 | if (fs_fd >= 0) |
2611 | if (fs_fd >= 0) |
1850 | { |
2612 | { |
… | |
… | |
1878 | w->wd = -1; |
2640 | w->wd = -1; |
1879 | |
2641 | |
1880 | if (fs_fd >= 0) |
2642 | if (fs_fd >= 0) |
1881 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2643 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1882 | else |
2644 | else |
1883 | ev_timer_start (EV_A_ &w->timer); |
2645 | ev_timer_again (EV_A_ &w->timer); |
1884 | } |
2646 | } |
1885 | |
|
|
1886 | } |
2647 | } |
1887 | } |
2648 | } |
1888 | |
2649 | |
|
|
2650 | #endif |
|
|
2651 | |
|
|
2652 | #ifdef _WIN32 |
|
|
2653 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2654 | #else |
|
|
2655 | # define EV_LSTAT(p,b) lstat (p, b) |
1889 | #endif |
2656 | #endif |
1890 | |
2657 | |
1891 | void |
2658 | void |
1892 | ev_stat_stat (EV_P_ ev_stat *w) |
2659 | ev_stat_stat (EV_P_ ev_stat *w) |
1893 | { |
2660 | { |
… | |
… | |
1920 | || w->prev.st_atime != w->attr.st_atime |
2687 | || w->prev.st_atime != w->attr.st_atime |
1921 | || w->prev.st_mtime != w->attr.st_mtime |
2688 | || w->prev.st_mtime != w->attr.st_mtime |
1922 | || w->prev.st_ctime != w->attr.st_ctime |
2689 | || w->prev.st_ctime != w->attr.st_ctime |
1923 | ) { |
2690 | ) { |
1924 | #if EV_USE_INOTIFY |
2691 | #if EV_USE_INOTIFY |
|
|
2692 | if (fs_fd >= 0) |
|
|
2693 | { |
1925 | infy_del (EV_A_ w); |
2694 | infy_del (EV_A_ w); |
1926 | infy_add (EV_A_ w); |
2695 | infy_add (EV_A_ w); |
1927 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
2696 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2697 | } |
1928 | #endif |
2698 | #endif |
1929 | |
2699 | |
1930 | ev_feed_event (EV_A_ w, EV_STAT); |
2700 | ev_feed_event (EV_A_ w, EV_STAT); |
1931 | } |
2701 | } |
1932 | } |
2702 | } |
… | |
… | |
1935 | ev_stat_start (EV_P_ ev_stat *w) |
2705 | ev_stat_start (EV_P_ ev_stat *w) |
1936 | { |
2706 | { |
1937 | if (expect_false (ev_is_active (w))) |
2707 | if (expect_false (ev_is_active (w))) |
1938 | return; |
2708 | return; |
1939 | |
2709 | |
1940 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1941 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1942 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1943 | |
|
|
1944 | ev_stat_stat (EV_A_ w); |
2710 | ev_stat_stat (EV_A_ w); |
1945 | |
2711 | |
|
|
2712 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
1946 | if (w->interval < MIN_STAT_INTERVAL) |
2713 | w->interval = MIN_STAT_INTERVAL; |
1947 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1948 | |
2714 | |
1949 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2715 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
1950 | ev_set_priority (&w->timer, ev_priority (w)); |
2716 | ev_set_priority (&w->timer, ev_priority (w)); |
1951 | |
2717 | |
1952 | #if EV_USE_INOTIFY |
2718 | #if EV_USE_INOTIFY |
1953 | infy_init (EV_A); |
2719 | infy_init (EV_A); |
1954 | |
2720 | |
1955 | if (fs_fd >= 0) |
2721 | if (fs_fd >= 0) |
1956 | infy_add (EV_A_ w); |
2722 | infy_add (EV_A_ w); |
1957 | else |
2723 | else |
1958 | #endif |
2724 | #endif |
1959 | ev_timer_start (EV_A_ &w->timer); |
2725 | ev_timer_again (EV_A_ &w->timer); |
1960 | |
2726 | |
1961 | ev_start (EV_A_ (W)w, 1); |
2727 | ev_start (EV_A_ (W)w, 1); |
|
|
2728 | |
|
|
2729 | EV_FREQUENT_CHECK; |
1962 | } |
2730 | } |
1963 | |
2731 | |
1964 | void |
2732 | void |
1965 | ev_stat_stop (EV_P_ ev_stat *w) |
2733 | ev_stat_stop (EV_P_ ev_stat *w) |
1966 | { |
2734 | { |
1967 | ev_clear_pending (EV_A_ (W)w); |
2735 | clear_pending (EV_A_ (W)w); |
1968 | if (expect_false (!ev_is_active (w))) |
2736 | if (expect_false (!ev_is_active (w))) |
1969 | return; |
2737 | return; |
1970 | |
2738 | |
|
|
2739 | EV_FREQUENT_CHECK; |
|
|
2740 | |
1971 | #if EV_USE_INOTIFY |
2741 | #if EV_USE_INOTIFY |
1972 | infy_del (EV_A_ w); |
2742 | infy_del (EV_A_ w); |
1973 | #endif |
2743 | #endif |
1974 | ev_timer_stop (EV_A_ &w->timer); |
2744 | ev_timer_stop (EV_A_ &w->timer); |
1975 | |
2745 | |
1976 | ev_stop (EV_A_ (W)w); |
2746 | ev_stop (EV_A_ (W)w); |
1977 | } |
|
|
1978 | #endif |
|
|
1979 | |
2747 | |
|
|
2748 | EV_FREQUENT_CHECK; |
|
|
2749 | } |
|
|
2750 | #endif |
|
|
2751 | |
|
|
2752 | #if EV_IDLE_ENABLE |
1980 | void |
2753 | void |
1981 | ev_idle_start (EV_P_ ev_idle *w) |
2754 | ev_idle_start (EV_P_ ev_idle *w) |
1982 | { |
2755 | { |
1983 | if (expect_false (ev_is_active (w))) |
2756 | if (expect_false (ev_is_active (w))) |
1984 | return; |
2757 | return; |
1985 | |
2758 | |
|
|
2759 | pri_adjust (EV_A_ (W)w); |
|
|
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | { |
|
|
2764 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2765 | |
|
|
2766 | ++idleall; |
1986 | ev_start (EV_A_ (W)w, ++idlecnt); |
2767 | ev_start (EV_A_ (W)w, active); |
|
|
2768 | |
1987 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
2769 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1988 | idles [idlecnt - 1] = w; |
2770 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2771 | } |
|
|
2772 | |
|
|
2773 | EV_FREQUENT_CHECK; |
1989 | } |
2774 | } |
1990 | |
2775 | |
1991 | void |
2776 | void |
1992 | ev_idle_stop (EV_P_ ev_idle *w) |
2777 | ev_idle_stop (EV_P_ ev_idle *w) |
1993 | { |
2778 | { |
1994 | ev_clear_pending (EV_A_ (W)w); |
2779 | clear_pending (EV_A_ (W)w); |
1995 | if (expect_false (!ev_is_active (w))) |
2780 | if (expect_false (!ev_is_active (w))) |
1996 | return; |
2781 | return; |
1997 | |
2782 | |
|
|
2783 | EV_FREQUENT_CHECK; |
|
|
2784 | |
1998 | { |
2785 | { |
1999 | int active = ((W)w)->active; |
2786 | int active = ev_active (w); |
2000 | idles [active - 1] = idles [--idlecnt]; |
2787 | |
2001 | ((W)idles [active - 1])->active = active; |
2788 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2789 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2790 | |
|
|
2791 | ev_stop (EV_A_ (W)w); |
|
|
2792 | --idleall; |
2002 | } |
2793 | } |
2003 | |
2794 | |
2004 | ev_stop (EV_A_ (W)w); |
2795 | EV_FREQUENT_CHECK; |
2005 | } |
2796 | } |
|
|
2797 | #endif |
2006 | |
2798 | |
2007 | void |
2799 | void |
2008 | ev_prepare_start (EV_P_ ev_prepare *w) |
2800 | ev_prepare_start (EV_P_ ev_prepare *w) |
2009 | { |
2801 | { |
2010 | if (expect_false (ev_is_active (w))) |
2802 | if (expect_false (ev_is_active (w))) |
2011 | return; |
2803 | return; |
|
|
2804 | |
|
|
2805 | EV_FREQUENT_CHECK; |
2012 | |
2806 | |
2013 | ev_start (EV_A_ (W)w, ++preparecnt); |
2807 | ev_start (EV_A_ (W)w, ++preparecnt); |
2014 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2808 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2015 | prepares [preparecnt - 1] = w; |
2809 | prepares [preparecnt - 1] = w; |
|
|
2810 | |
|
|
2811 | EV_FREQUENT_CHECK; |
2016 | } |
2812 | } |
2017 | |
2813 | |
2018 | void |
2814 | void |
2019 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2815 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2020 | { |
2816 | { |
2021 | ev_clear_pending (EV_A_ (W)w); |
2817 | clear_pending (EV_A_ (W)w); |
2022 | if (expect_false (!ev_is_active (w))) |
2818 | if (expect_false (!ev_is_active (w))) |
2023 | return; |
2819 | return; |
2024 | |
2820 | |
|
|
2821 | EV_FREQUENT_CHECK; |
|
|
2822 | |
2025 | { |
2823 | { |
2026 | int active = ((W)w)->active; |
2824 | int active = ev_active (w); |
|
|
2825 | |
2027 | prepares [active - 1] = prepares [--preparecnt]; |
2826 | prepares [active - 1] = prepares [--preparecnt]; |
2028 | ((W)prepares [active - 1])->active = active; |
2827 | ev_active (prepares [active - 1]) = active; |
2029 | } |
2828 | } |
2030 | |
2829 | |
2031 | ev_stop (EV_A_ (W)w); |
2830 | ev_stop (EV_A_ (W)w); |
|
|
2831 | |
|
|
2832 | EV_FREQUENT_CHECK; |
2032 | } |
2833 | } |
2033 | |
2834 | |
2034 | void |
2835 | void |
2035 | ev_check_start (EV_P_ ev_check *w) |
2836 | ev_check_start (EV_P_ ev_check *w) |
2036 | { |
2837 | { |
2037 | if (expect_false (ev_is_active (w))) |
2838 | if (expect_false (ev_is_active (w))) |
2038 | return; |
2839 | return; |
|
|
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
2039 | |
2842 | |
2040 | ev_start (EV_A_ (W)w, ++checkcnt); |
2843 | ev_start (EV_A_ (W)w, ++checkcnt); |
2041 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2844 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2042 | checks [checkcnt - 1] = w; |
2845 | checks [checkcnt - 1] = w; |
|
|
2846 | |
|
|
2847 | EV_FREQUENT_CHECK; |
2043 | } |
2848 | } |
2044 | |
2849 | |
2045 | void |
2850 | void |
2046 | ev_check_stop (EV_P_ ev_check *w) |
2851 | ev_check_stop (EV_P_ ev_check *w) |
2047 | { |
2852 | { |
2048 | ev_clear_pending (EV_A_ (W)w); |
2853 | clear_pending (EV_A_ (W)w); |
2049 | if (expect_false (!ev_is_active (w))) |
2854 | if (expect_false (!ev_is_active (w))) |
2050 | return; |
2855 | return; |
2051 | |
2856 | |
|
|
2857 | EV_FREQUENT_CHECK; |
|
|
2858 | |
2052 | { |
2859 | { |
2053 | int active = ((W)w)->active; |
2860 | int active = ev_active (w); |
|
|
2861 | |
2054 | checks [active - 1] = checks [--checkcnt]; |
2862 | checks [active - 1] = checks [--checkcnt]; |
2055 | ((W)checks [active - 1])->active = active; |
2863 | ev_active (checks [active - 1]) = active; |
2056 | } |
2864 | } |
2057 | |
2865 | |
2058 | ev_stop (EV_A_ (W)w); |
2866 | ev_stop (EV_A_ (W)w); |
|
|
2867 | |
|
|
2868 | EV_FREQUENT_CHECK; |
2059 | } |
2869 | } |
2060 | |
2870 | |
2061 | #if EV_EMBED_ENABLE |
2871 | #if EV_EMBED_ENABLE |
2062 | void noinline |
2872 | void noinline |
2063 | ev_embed_sweep (EV_P_ ev_embed *w) |
2873 | ev_embed_sweep (EV_P_ ev_embed *w) |
2064 | { |
2874 | { |
2065 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2875 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2066 | } |
2876 | } |
2067 | |
2877 | |
2068 | static void |
2878 | static void |
2069 | embed_cb (EV_P_ ev_io *io, int revents) |
2879 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2070 | { |
2880 | { |
2071 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2881 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2072 | |
2882 | |
2073 | if (ev_cb (w)) |
2883 | if (ev_cb (w)) |
2074 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2884 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2075 | else |
2885 | else |
2076 | ev_embed_sweep (loop, w); |
2886 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2077 | } |
2887 | } |
|
|
2888 | |
|
|
2889 | static void |
|
|
2890 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2891 | { |
|
|
2892 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2893 | |
|
|
2894 | { |
|
|
2895 | struct ev_loop *loop = w->other; |
|
|
2896 | |
|
|
2897 | while (fdchangecnt) |
|
|
2898 | { |
|
|
2899 | fd_reify (EV_A); |
|
|
2900 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2901 | } |
|
|
2902 | } |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | static void |
|
|
2906 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2907 | { |
|
|
2908 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2909 | |
|
|
2910 | ev_embed_stop (EV_A_ w); |
|
|
2911 | |
|
|
2912 | { |
|
|
2913 | struct ev_loop *loop = w->other; |
|
|
2914 | |
|
|
2915 | ev_loop_fork (EV_A); |
|
|
2916 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2917 | } |
|
|
2918 | |
|
|
2919 | ev_embed_start (EV_A_ w); |
|
|
2920 | } |
|
|
2921 | |
|
|
2922 | #if 0 |
|
|
2923 | static void |
|
|
2924 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2925 | { |
|
|
2926 | ev_idle_stop (EV_A_ idle); |
|
|
2927 | } |
|
|
2928 | #endif |
2078 | |
2929 | |
2079 | void |
2930 | void |
2080 | ev_embed_start (EV_P_ ev_embed *w) |
2931 | ev_embed_start (EV_P_ ev_embed *w) |
2081 | { |
2932 | { |
2082 | if (expect_false (ev_is_active (w))) |
2933 | if (expect_false (ev_is_active (w))) |
2083 | return; |
2934 | return; |
2084 | |
2935 | |
2085 | { |
2936 | { |
2086 | struct ev_loop *loop = w->loop; |
2937 | struct ev_loop *loop = w->other; |
2087 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2938 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2088 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2939 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2089 | } |
2940 | } |
|
|
2941 | |
|
|
2942 | EV_FREQUENT_CHECK; |
2090 | |
2943 | |
2091 | ev_set_priority (&w->io, ev_priority (w)); |
2944 | ev_set_priority (&w->io, ev_priority (w)); |
2092 | ev_io_start (EV_A_ &w->io); |
2945 | ev_io_start (EV_A_ &w->io); |
2093 | |
2946 | |
|
|
2947 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2948 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2949 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2950 | |
|
|
2951 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2952 | ev_fork_start (EV_A_ &w->fork); |
|
|
2953 | |
|
|
2954 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2955 | |
2094 | ev_start (EV_A_ (W)w, 1); |
2956 | ev_start (EV_A_ (W)w, 1); |
|
|
2957 | |
|
|
2958 | EV_FREQUENT_CHECK; |
2095 | } |
2959 | } |
2096 | |
2960 | |
2097 | void |
2961 | void |
2098 | ev_embed_stop (EV_P_ ev_embed *w) |
2962 | ev_embed_stop (EV_P_ ev_embed *w) |
2099 | { |
2963 | { |
2100 | ev_clear_pending (EV_A_ (W)w); |
2964 | clear_pending (EV_A_ (W)w); |
2101 | if (expect_false (!ev_is_active (w))) |
2965 | if (expect_false (!ev_is_active (w))) |
2102 | return; |
2966 | return; |
2103 | |
2967 | |
|
|
2968 | EV_FREQUENT_CHECK; |
|
|
2969 | |
2104 | ev_io_stop (EV_A_ &w->io); |
2970 | ev_io_stop (EV_A_ &w->io); |
|
|
2971 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2972 | ev_fork_stop (EV_A_ &w->fork); |
2105 | |
2973 | |
2106 | ev_stop (EV_A_ (W)w); |
2974 | EV_FREQUENT_CHECK; |
2107 | } |
2975 | } |
2108 | #endif |
2976 | #endif |
2109 | |
2977 | |
2110 | #if EV_FORK_ENABLE |
2978 | #if EV_FORK_ENABLE |
2111 | void |
2979 | void |
2112 | ev_fork_start (EV_P_ ev_fork *w) |
2980 | ev_fork_start (EV_P_ ev_fork *w) |
2113 | { |
2981 | { |
2114 | if (expect_false (ev_is_active (w))) |
2982 | if (expect_false (ev_is_active (w))) |
2115 | return; |
2983 | return; |
|
|
2984 | |
|
|
2985 | EV_FREQUENT_CHECK; |
2116 | |
2986 | |
2117 | ev_start (EV_A_ (W)w, ++forkcnt); |
2987 | ev_start (EV_A_ (W)w, ++forkcnt); |
2118 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2988 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2119 | forks [forkcnt - 1] = w; |
2989 | forks [forkcnt - 1] = w; |
|
|
2990 | |
|
|
2991 | EV_FREQUENT_CHECK; |
2120 | } |
2992 | } |
2121 | |
2993 | |
2122 | void |
2994 | void |
2123 | ev_fork_stop (EV_P_ ev_fork *w) |
2995 | ev_fork_stop (EV_P_ ev_fork *w) |
2124 | { |
2996 | { |
2125 | ev_clear_pending (EV_A_ (W)w); |
2997 | clear_pending (EV_A_ (W)w); |
2126 | if (expect_false (!ev_is_active (w))) |
2998 | if (expect_false (!ev_is_active (w))) |
2127 | return; |
2999 | return; |
2128 | |
3000 | |
|
|
3001 | EV_FREQUENT_CHECK; |
|
|
3002 | |
2129 | { |
3003 | { |
2130 | int active = ((W)w)->active; |
3004 | int active = ev_active (w); |
|
|
3005 | |
2131 | forks [active - 1] = forks [--forkcnt]; |
3006 | forks [active - 1] = forks [--forkcnt]; |
2132 | ((W)forks [active - 1])->active = active; |
3007 | ev_active (forks [active - 1]) = active; |
2133 | } |
3008 | } |
2134 | |
3009 | |
2135 | ev_stop (EV_A_ (W)w); |
3010 | ev_stop (EV_A_ (W)w); |
|
|
3011 | |
|
|
3012 | EV_FREQUENT_CHECK; |
|
|
3013 | } |
|
|
3014 | #endif |
|
|
3015 | |
|
|
3016 | #if EV_ASYNC_ENABLE |
|
|
3017 | void |
|
|
3018 | ev_async_start (EV_P_ ev_async *w) |
|
|
3019 | { |
|
|
3020 | if (expect_false (ev_is_active (w))) |
|
|
3021 | return; |
|
|
3022 | |
|
|
3023 | evpipe_init (EV_A); |
|
|
3024 | |
|
|
3025 | EV_FREQUENT_CHECK; |
|
|
3026 | |
|
|
3027 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3028 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3029 | asyncs [asynccnt - 1] = w; |
|
|
3030 | |
|
|
3031 | EV_FREQUENT_CHECK; |
|
|
3032 | } |
|
|
3033 | |
|
|
3034 | void |
|
|
3035 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3036 | { |
|
|
3037 | clear_pending (EV_A_ (W)w); |
|
|
3038 | if (expect_false (!ev_is_active (w))) |
|
|
3039 | return; |
|
|
3040 | |
|
|
3041 | EV_FREQUENT_CHECK; |
|
|
3042 | |
|
|
3043 | { |
|
|
3044 | int active = ev_active (w); |
|
|
3045 | |
|
|
3046 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3047 | ev_active (asyncs [active - 1]) = active; |
|
|
3048 | } |
|
|
3049 | |
|
|
3050 | ev_stop (EV_A_ (W)w); |
|
|
3051 | |
|
|
3052 | EV_FREQUENT_CHECK; |
|
|
3053 | } |
|
|
3054 | |
|
|
3055 | void |
|
|
3056 | ev_async_send (EV_P_ ev_async *w) |
|
|
3057 | { |
|
|
3058 | w->sent = 1; |
|
|
3059 | evpipe_write (EV_A_ &gotasync); |
2136 | } |
3060 | } |
2137 | #endif |
3061 | #endif |
2138 | |
3062 | |
2139 | /*****************************************************************************/ |
3063 | /*****************************************************************************/ |
2140 | |
3064 | |
… | |
… | |
2150 | once_cb (EV_P_ struct ev_once *once, int revents) |
3074 | once_cb (EV_P_ struct ev_once *once, int revents) |
2151 | { |
3075 | { |
2152 | void (*cb)(int revents, void *arg) = once->cb; |
3076 | void (*cb)(int revents, void *arg) = once->cb; |
2153 | void *arg = once->arg; |
3077 | void *arg = once->arg; |
2154 | |
3078 | |
2155 | ev_io_stop (EV_A_ &once->io); |
3079 | ev_io_stop (EV_A_ &once->io); |
2156 | ev_timer_stop (EV_A_ &once->to); |
3080 | ev_timer_stop (EV_A_ &once->to); |
2157 | ev_free (once); |
3081 | ev_free (once); |
2158 | |
3082 | |
2159 | cb (revents, arg); |
3083 | cb (revents, arg); |
2160 | } |
3084 | } |
2161 | |
3085 | |
2162 | static void |
3086 | static void |
2163 | once_cb_io (EV_P_ ev_io *w, int revents) |
3087 | once_cb_io (EV_P_ ev_io *w, int revents) |
2164 | { |
3088 | { |
2165 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3089 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3090 | |
|
|
3091 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2166 | } |
3092 | } |
2167 | |
3093 | |
2168 | static void |
3094 | static void |
2169 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3095 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2170 | { |
3096 | { |
2171 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3097 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3098 | |
|
|
3099 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2172 | } |
3100 | } |
2173 | |
3101 | |
2174 | void |
3102 | void |
2175 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3103 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2176 | { |
3104 | { |
… | |
… | |
2198 | ev_timer_set (&once->to, timeout, 0.); |
3126 | ev_timer_set (&once->to, timeout, 0.); |
2199 | ev_timer_start (EV_A_ &once->to); |
3127 | ev_timer_start (EV_A_ &once->to); |
2200 | } |
3128 | } |
2201 | } |
3129 | } |
2202 | |
3130 | |
|
|
3131 | #if EV_MULTIPLICITY |
|
|
3132 | #include "ev_wrap.h" |
|
|
3133 | #endif |
|
|
3134 | |
2203 | #ifdef __cplusplus |
3135 | #ifdef __cplusplus |
2204 | } |
3136 | } |
2205 | #endif |
3137 | #endif |
2206 | |
3138 | |