1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2020 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 modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | # endif |
|
|
53 | |
48 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
49 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
50 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
51 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
52 | # define EV_USE_REALTIME 0 |
58 | # define EV_USE_REALTIME 0 |
53 | # endif |
59 | # endif |
54 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
55 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
56 | # endif |
62 | # endif |
57 | # endif |
63 | # endif |
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
59 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
60 | # endif |
66 | # endif |
61 | |
67 | |
62 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
63 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
109 | # else |
115 | # else |
110 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
111 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
|
|
120 | # if HAVE_LINUX_AIO_ABI_H |
|
|
121 | # ifndef EV_USE_LINUXAIO |
|
|
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
|
|
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
|
|
127 | # endif |
|
|
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
|
|
130 | # ifndef EV_USE_IOURING |
|
|
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
|
|
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
|
|
135 | # define EV_USE_IOURING 0 |
|
|
136 | # endif |
|
|
137 | |
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
115 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
117 | # endif |
141 | # endif |
118 | # else |
142 | # else |
… | |
… | |
153 | # endif |
177 | # endif |
154 | # else |
178 | # else |
155 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
156 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
157 | # endif |
181 | # endif |
158 | |
182 | |
|
|
183 | # if HAVE_SYS_TIMERFD_H |
|
|
184 | # ifndef EV_USE_TIMERFD |
|
|
185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
186 | # endif |
|
|
187 | # else |
|
|
188 | # undef EV_USE_TIMERFD |
|
|
189 | # define EV_USE_TIMERFD 0 |
159 | #endif |
190 | # endif |
160 | |
191 | |
161 | #include <math.h> |
192 | #endif |
|
|
193 | |
|
|
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
195 | * a limit of 1024 into their select. Where people have brains, |
|
|
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
197 | * ordered to have a vacuum, or they do anything for money. |
|
|
198 | * This might help. Or not. |
|
|
199 | * Note that this must be defined early, as other include files |
|
|
200 | * will rely on this define as well. |
|
|
201 | */ |
|
|
202 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
203 | |
162 | #include <stdlib.h> |
204 | #include <stdlib.h> |
163 | #include <string.h> |
205 | #include <string.h> |
164 | #include <fcntl.h> |
206 | #include <fcntl.h> |
165 | #include <stddef.h> |
207 | #include <stddef.h> |
166 | |
208 | |
… | |
… | |
178 | # include EV_H |
220 | # include EV_H |
179 | #else |
221 | #else |
180 | # include "ev.h" |
222 | # include "ev.h" |
181 | #endif |
223 | #endif |
182 | |
224 | |
183 | EV_CPP(extern "C" {) |
225 | #if EV_NO_THREADS |
|
|
226 | # undef EV_NO_SMP |
|
|
227 | # define EV_NO_SMP 1 |
|
|
228 | # undef ECB_NO_THREADS |
|
|
229 | # define ECB_NO_THREADS 1 |
|
|
230 | #endif |
|
|
231 | #if EV_NO_SMP |
|
|
232 | # undef EV_NO_SMP |
|
|
233 | # define ECB_NO_SMP 1 |
|
|
234 | #endif |
184 | |
235 | |
185 | #ifndef _WIN32 |
236 | #ifndef _WIN32 |
186 | # include <sys/time.h> |
237 | # include <sys/time.h> |
187 | # include <sys/wait.h> |
238 | # include <sys/wait.h> |
188 | # include <unistd.h> |
239 | # include <unistd.h> |
189 | #else |
240 | #else |
190 | # include <io.h> |
241 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
242 | # define WIN32_LEAN_AND_MEAN |
|
|
243 | # include <winsock2.h> |
192 | # include <windows.h> |
244 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
247 | # endif |
196 | # undef EV_AVOID_STDIO |
248 | # undef EV_AVOID_STDIO |
197 | #endif |
249 | #endif |
198 | |
250 | |
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
202 | * ordered to have a vacuum, or they do anything for money. |
|
|
203 | * This might help. Or not. |
|
|
204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
206 | |
|
|
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
251 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
252 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
253 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
254 | #if defined EV_NSIG |
211 | /* use what's provided */ |
255 | /* use what's provided */ |
212 | #elif defined (NSIG) |
256 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
257 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
258 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
259 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
260 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
261 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
262 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
263 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
264 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
265 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
266 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
267 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
268 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
269 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
270 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
271 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
272 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
273 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
274 | #else |
231 | # error "unable to find value for NSIG, please report" |
275 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
232 | /* to make it compile regardless, just remove the above line, */ |
276 | #endif |
233 | /* but consider reporting it, too! :) */ |
277 | |
234 | # define EV_NSIG 65 |
278 | #ifndef EV_USE_FLOOR |
|
|
279 | # define EV_USE_FLOOR 0 |
235 | #endif |
280 | #endif |
236 | |
281 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
282 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
283 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
284 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
285 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
287 | # endif |
243 | #endif |
288 | #endif |
244 | |
289 | |
|
|
290 | #if !(_POSIX_TIMERS > 0) |
|
|
291 | # ifndef EV_USE_MONOTONIC |
|
|
292 | # define EV_USE_MONOTONIC 0 |
|
|
293 | # endif |
|
|
294 | # ifndef EV_USE_REALTIME |
|
|
295 | # define EV_USE_REALTIME 0 |
|
|
296 | # endif |
|
|
297 | #endif |
|
|
298 | |
245 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
301 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
302 | # else |
249 | # define EV_USE_MONOTONIC 0 |
303 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
304 | # endif |
251 | #endif |
305 | #endif |
… | |
… | |
288 | |
342 | |
289 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
290 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
291 | #endif |
345 | #endif |
292 | |
346 | |
|
|
347 | #ifndef EV_USE_LINUXAIO |
|
|
348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
|
|
350 | # else |
|
|
351 | # define EV_USE_LINUXAIO 0 |
|
|
352 | # endif |
|
|
353 | #endif |
|
|
354 | |
|
|
355 | #ifndef EV_USE_IOURING |
|
|
356 | # if __linux /* later checks might disable again */ |
|
|
357 | # define EV_USE_IOURING 1 |
|
|
358 | # else |
|
|
359 | # define EV_USE_IOURING 0 |
|
|
360 | # endif |
|
|
361 | #endif |
|
|
362 | |
293 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
294 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
295 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
296 | # else |
366 | # else |
297 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
320 | # else |
390 | # else |
321 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
322 | # endif |
392 | # endif |
323 | #endif |
393 | #endif |
324 | |
394 | |
|
|
395 | #ifndef EV_USE_TIMERFD |
|
|
396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
|
|
397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
398 | # else |
|
|
399 | # define EV_USE_TIMERFD 0 |
|
|
400 | # endif |
|
|
401 | #endif |
|
|
402 | |
325 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
326 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
327 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
328 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
329 | #endif |
407 | #endif |
… | |
… | |
338 | |
416 | |
339 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
341 | #endif |
419 | #endif |
342 | |
420 | |
|
|
421 | #ifdef __ANDROID__ |
|
|
422 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
423 | # undef EV_USE_SELECT |
|
|
424 | # define EV_USE_SELECT 0 |
|
|
425 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
426 | # undef EV_USE_CLOCK_SYSCALL |
|
|
427 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
428 | #endif |
|
|
429 | |
|
|
430 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
431 | #ifdef _AIX |
|
|
432 | /* AIX has a completely broken poll.h header */ |
|
|
433 | # undef EV_USE_POLL |
|
|
434 | # define EV_USE_POLL 0 |
|
|
435 | #endif |
|
|
436 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
437 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
438 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
439 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
440 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
|
|
445 | # define EV_NEED_SYSCALL 1 |
351 | # else |
446 | # else |
352 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
353 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
354 | # endif |
449 | # endif |
355 | #endif |
450 | #endif |
356 | |
451 | |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
452 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
358 | |
453 | |
359 | #ifdef _AIX |
|
|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
|
|
362 | # define EV_USE_POLL 0 |
|
|
363 | #endif |
|
|
364 | |
|
|
365 | #ifndef CLOCK_MONOTONIC |
454 | #ifndef CLOCK_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
455 | # undef EV_USE_MONOTONIC |
367 | # define EV_USE_MONOTONIC 0 |
456 | # define EV_USE_MONOTONIC 0 |
368 | #endif |
457 | #endif |
369 | |
458 | |
… | |
… | |
375 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
376 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
378 | #endif |
467 | #endif |
379 | |
468 | |
|
|
469 | #if __linux && EV_USE_IOURING |
|
|
470 | # include <linux/version.h> |
|
|
471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
472 | # undef EV_USE_IOURING |
|
|
473 | # define EV_USE_IOURING 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
380 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
381 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
382 | # if !defined(_WIN32) && !defined(__hpux) |
479 | # if !defined _WIN32 && !defined __hpux |
383 | # include <sys/select.h> |
480 | # include <sys/select.h> |
|
|
481 | # endif |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #if EV_USE_LINUXAIO |
|
|
485 | # include <sys/syscall.h> |
|
|
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
|
|
489 | # undef EV_USE_LINUXAIO |
|
|
490 | # define EV_USE_LINUXAIO 0 |
|
|
491 | # endif |
|
|
492 | #endif |
|
|
493 | |
|
|
494 | #if EV_USE_IOURING |
|
|
495 | # include <sys/syscall.h> |
|
|
496 | # if !SYS_io_uring_register && __linux && !__alpha |
|
|
497 | # define SYS_io_uring_setup 425 |
|
|
498 | # define SYS_io_uring_enter 426 |
|
|
499 | # define SYS_io_uring_register 427 |
|
|
500 | # endif |
|
|
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
502 | # define EV_NEED_SYSCALL 1 |
|
|
503 | # else |
|
|
504 | # undef EV_USE_IOURING |
|
|
505 | # define EV_USE_IOURING 0 |
384 | # endif |
506 | # endif |
385 | #endif |
507 | #endif |
386 | |
508 | |
387 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
388 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
392 | # undef EV_USE_INOTIFY |
514 | # undef EV_USE_INOTIFY |
393 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
394 | # endif |
516 | # endif |
395 | #endif |
517 | #endif |
396 | |
518 | |
397 | #if EV_SELECT_IS_WINSOCKET |
|
|
398 | # include <winsock.h> |
|
|
399 | #endif |
|
|
400 | |
|
|
401 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
403 | # include <stdint.h> |
521 | # include <stdint.h> |
404 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
405 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
406 | # endif |
524 | # endif |
407 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
413 | # endif |
531 | # endif |
414 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
415 | #endif |
533 | #endif |
416 | |
534 | |
417 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
418 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
419 | # include <stdint.h> |
537 | # include <stdint.h> |
420 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
421 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
422 | # endif |
540 | # endif |
423 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
425 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
426 | # else |
544 | # else |
427 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
428 | # endif |
546 | # endif |
429 | # endif |
547 | # endif |
430 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
431 | |
549 | |
432 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
433 | { |
551 | { |
434 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
435 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
436 | }; |
554 | }; |
437 | #endif |
555 | #endif |
438 | |
556 | |
439 | /**/ |
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
|
|
558 | #if EV_USE_TIMERFD |
|
|
559 | # include <sys/timerfd.h> |
|
|
560 | /* timerfd is only used for periodics */ |
|
|
561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
|
|
562 | # undef EV_USE_TIMERFD |
|
|
563 | # define EV_USE_TIMERFD 0 |
|
|
564 | # endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
440 | |
568 | |
441 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
442 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
443 | #else |
571 | #else |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
445 | #endif |
573 | #endif |
446 | |
574 | |
447 | /* |
575 | /* |
448 | * This is used to avoid floating point rounding problems. |
576 | * This is used to work around floating point rounding problems. |
449 | * It is added to ev_rt_now when scheduling periodics |
|
|
450 | * to ensure progress, time-wise, even when rounding |
|
|
451 | * errors are against us. |
|
|
452 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
453 | * Better solutions welcome. |
|
|
454 | */ |
578 | */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
456 | |
581 | |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
|
|
584 | #define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */ |
459 | |
585 | |
|
|
586 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
587 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
588 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
589 | #define EV_TSTAMP_HUGE \ |
|
|
590 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
591 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
592 | : 2147483647.) \ |
|
|
593 | |
|
|
594 | #ifndef EV_TS_CONST |
|
|
595 | # define EV_TS_CONST(nv) nv |
|
|
596 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
597 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
598 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
599 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
600 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
601 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
602 | #endif |
462 | |
603 | |
|
|
604 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
605 | /* ECB.H BEGIN */ |
|
|
606 | /* |
|
|
607 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
608 | * |
|
|
609 | * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
610 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
611 | * All rights reserved. |
|
|
612 | * |
|
|
613 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
614 | * tion, are permitted provided that the following conditions are met: |
|
|
615 | * |
|
|
616 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
617 | * this list of conditions and the following disclaimer. |
|
|
618 | * |
|
|
619 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
620 | * notice, this list of conditions and the following disclaimer in the |
|
|
621 | * documentation and/or other materials provided with the distribution. |
|
|
622 | * |
|
|
623 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
624 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
625 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
626 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
627 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
628 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
629 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
630 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
631 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
632 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
633 | * |
|
|
634 | * Alternatively, the contents of this file may be used under the terms of |
|
|
635 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
636 | * in which case the provisions of the GPL are applicable instead of |
|
|
637 | * the above. If you wish to allow the use of your version of this file |
|
|
638 | * only under the terms of the GPL and not to allow others to use your |
|
|
639 | * version of this file under the BSD license, indicate your decision |
|
|
640 | * by deleting the provisions above and replace them with the notice |
|
|
641 | * and other provisions required by the GPL. If you do not delete the |
|
|
642 | * provisions above, a recipient may use your version of this file under |
|
|
643 | * either the BSD or the GPL. |
|
|
644 | */ |
|
|
645 | |
|
|
646 | #ifndef ECB_H |
|
|
647 | #define ECB_H |
|
|
648 | |
|
|
649 | /* 16 bits major, 16 bits minor */ |
|
|
650 | #define ECB_VERSION 0x00010008 |
|
|
651 | |
|
|
652 | #include <string.h> /* for memcpy */ |
|
|
653 | |
|
|
654 | #if defined (_WIN32) && !defined (__MINGW32__) |
|
|
655 | typedef signed char int8_t; |
|
|
656 | typedef unsigned char uint8_t; |
|
|
657 | typedef signed char int_fast8_t; |
|
|
658 | typedef unsigned char uint_fast8_t; |
|
|
659 | typedef signed short int16_t; |
|
|
660 | typedef unsigned short uint16_t; |
|
|
661 | typedef signed int int_fast16_t; |
|
|
662 | typedef unsigned int uint_fast16_t; |
|
|
663 | typedef signed int int32_t; |
|
|
664 | typedef unsigned int uint32_t; |
|
|
665 | typedef signed int int_fast32_t; |
|
|
666 | typedef unsigned int uint_fast32_t; |
463 | #if __GNUC__ >= 4 |
667 | #if __GNUC__ |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
668 | typedef signed long long int64_t; |
465 | # define noinline __attribute__ ((noinline)) |
669 | typedef unsigned long long uint64_t; |
|
|
670 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
671 | typedef signed __int64 int64_t; |
|
|
672 | typedef unsigned __int64 uint64_t; |
|
|
673 | #endif |
|
|
674 | typedef int64_t int_fast64_t; |
|
|
675 | typedef uint64_t uint_fast64_t; |
|
|
676 | #ifdef _WIN64 |
|
|
677 | #define ECB_PTRSIZE 8 |
|
|
678 | typedef uint64_t uintptr_t; |
|
|
679 | typedef int64_t intptr_t; |
|
|
680 | #else |
|
|
681 | #define ECB_PTRSIZE 4 |
|
|
682 | typedef uint32_t uintptr_t; |
|
|
683 | typedef int32_t intptr_t; |
|
|
684 | #endif |
466 | #else |
685 | #else |
467 | # define expect(expr,value) (expr) |
686 | #include <inttypes.h> |
468 | # define noinline |
687 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
688 | #define ECB_PTRSIZE 8 |
470 | # define inline |
689 | #else |
|
|
690 | #define ECB_PTRSIZE 4 |
|
|
691 | #endif |
471 | # endif |
692 | #endif |
|
|
693 | |
|
|
694 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
695 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
696 | |
|
|
697 | #ifndef ECB_OPTIMIZE_SIZE |
|
|
698 | #if __OPTIMIZE_SIZE__ |
|
|
699 | #define ECB_OPTIMIZE_SIZE 1 |
|
|
700 | #else |
|
|
701 | #define ECB_OPTIMIZE_SIZE 0 |
472 | #endif |
702 | #endif |
|
|
703 | #endif |
473 | |
704 | |
|
|
705 | /* work around x32 idiocy by defining proper macros */ |
|
|
706 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
707 | #if _ILP32 |
|
|
708 | #define ECB_AMD64_X32 1 |
|
|
709 | #else |
|
|
710 | #define ECB_AMD64 1 |
|
|
711 | #endif |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
715 | * what their idiot authors think are the "more important" extensions, |
|
|
716 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
717 | * or so. |
|
|
718 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
719 | * an issue with that they should have done it right in the first place. |
|
|
720 | */ |
|
|
721 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
722 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
723 | #else |
|
|
724 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
728 | |
|
|
729 | #if __clang__ && defined __has_builtin |
|
|
730 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
731 | #else |
|
|
732 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | #if __clang__ && defined __has_extension |
|
|
736 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
737 | #else |
|
|
738 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
739 | #endif |
|
|
740 | |
|
|
741 | #define ECB_CPP (__cplusplus+0) |
|
|
742 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
743 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
744 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
745 | |
|
|
746 | #if ECB_CPP |
|
|
747 | #define ECB_C 0 |
|
|
748 | #define ECB_STDC_VERSION 0 |
|
|
749 | #else |
|
|
750 | #define ECB_C 1 |
|
|
751 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
752 | #endif |
|
|
753 | |
|
|
754 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
755 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
756 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
757 | |
|
|
758 | #if ECB_CPP |
|
|
759 | #define ECB_EXTERN_C extern "C" |
|
|
760 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
761 | #define ECB_EXTERN_C_END } |
|
|
762 | #else |
|
|
763 | #define ECB_EXTERN_C extern |
|
|
764 | #define ECB_EXTERN_C_BEG |
|
|
765 | #define ECB_EXTERN_C_END |
|
|
766 | #endif |
|
|
767 | |
|
|
768 | /*****************************************************************************/ |
|
|
769 | |
|
|
770 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
771 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
772 | |
|
|
773 | #if ECB_NO_THREADS |
|
|
774 | #define ECB_NO_SMP 1 |
|
|
775 | #endif |
|
|
776 | |
|
|
777 | #if ECB_NO_SMP |
|
|
778 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
779 | #endif |
|
|
780 | |
|
|
781 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
782 | #if __xlC__ && ECB_CPP |
|
|
783 | #include <builtins.h> |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if 1400 <= _MSC_VER |
|
|
787 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
788 | #endif |
|
|
789 | |
|
|
790 | #ifndef ECB_MEMORY_FENCE |
|
|
791 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
792 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
793 | #if __i386 || __i386__ |
|
|
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
795 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
796 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
797 | #elif ECB_GCC_AMD64 |
|
|
798 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
799 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
800 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
801 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
802 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
803 | #elif defined __ARM_ARCH_2__ \ |
|
|
804 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
805 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
806 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
807 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
808 | || defined __ARM_ARCH_5TEJ__ |
|
|
809 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
810 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
811 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
812 | || defined __ARM_ARCH_6T2__ |
|
|
813 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
814 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
815 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
816 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
817 | #elif __aarch64__ |
|
|
818 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
819 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
821 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
822 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
823 | #elif defined __s390__ || defined __s390x__ |
|
|
824 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
825 | #elif defined __mips__ |
|
|
826 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
827 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
828 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
829 | #elif defined __alpha__ |
|
|
830 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
831 | #elif defined __hppa__ |
|
|
832 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
833 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
834 | #elif defined __ia64__ |
|
|
835 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
836 | #elif defined __m68k__ |
|
|
837 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
838 | #elif defined __m88k__ |
|
|
839 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
840 | #elif defined __sh__ |
|
|
841 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
842 | #endif |
|
|
843 | #endif |
|
|
844 | #endif |
|
|
845 | |
|
|
846 | #ifndef ECB_MEMORY_FENCE |
|
|
847 | #if ECB_GCC_VERSION(4,7) |
|
|
848 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
849 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
850 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
851 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
852 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
853 | |
|
|
854 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
855 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
856 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
857 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
858 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
859 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
860 | |
|
|
861 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
862 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
863 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
864 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
865 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
866 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
867 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
868 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
869 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
870 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
871 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
872 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
873 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
874 | #elif defined _WIN32 |
|
|
875 | #include <WinNT.h> |
|
|
876 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
877 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
878 | #include <mbarrier.h> |
|
|
879 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
880 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
881 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
882 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
883 | #elif __xlC__ |
|
|
884 | #define ECB_MEMORY_FENCE __sync () |
|
|
885 | #endif |
|
|
886 | #endif |
|
|
887 | |
|
|
888 | #ifndef ECB_MEMORY_FENCE |
|
|
889 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
890 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
891 | /* not just C11 atomics and atomic accesses */ |
|
|
892 | #include <stdatomic.h> |
|
|
893 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
894 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
895 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
896 | #endif |
|
|
897 | #endif |
|
|
898 | |
|
|
899 | #ifndef ECB_MEMORY_FENCE |
|
|
900 | #if !ECB_AVOID_PTHREADS |
|
|
901 | /* |
|
|
902 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
903 | * or failure to find pthread.h, then you should implement |
|
|
904 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
905 | * OR provide pthread.h and link against the posix thread library |
|
|
906 | * of your system. |
|
|
907 | */ |
|
|
908 | #include <pthread.h> |
|
|
909 | #define ECB_NEEDS_PTHREADS 1 |
|
|
910 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
911 | |
|
|
912 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
913 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
914 | #endif |
|
|
915 | #endif |
|
|
916 | |
|
|
917 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
918 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
922 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
923 | #endif |
|
|
924 | |
|
|
925 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
926 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | /*****************************************************************************/ |
|
|
930 | |
|
|
931 | #if ECB_CPP |
|
|
932 | #define ecb_inline static inline |
|
|
933 | #elif ECB_GCC_VERSION(2,5) |
|
|
934 | #define ecb_inline static __inline__ |
|
|
935 | #elif ECB_C99 |
|
|
936 | #define ecb_inline static inline |
|
|
937 | #else |
|
|
938 | #define ecb_inline static |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | #if ECB_GCC_VERSION(3,3) |
|
|
942 | #define ecb_restrict __restrict__ |
|
|
943 | #elif ECB_C99 |
|
|
944 | #define ecb_restrict restrict |
|
|
945 | #else |
|
|
946 | #define ecb_restrict |
|
|
947 | #endif |
|
|
948 | |
|
|
949 | typedef int ecb_bool; |
|
|
950 | |
|
|
951 | #define ECB_CONCAT_(a, b) a ## b |
|
|
952 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
953 | #define ECB_STRINGIFY_(a) # a |
|
|
954 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
955 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
956 | |
|
|
957 | #define ecb_function_ ecb_inline |
|
|
958 | |
|
|
959 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
960 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
961 | #else |
|
|
962 | #define ecb_attribute(attrlist) |
|
|
963 | #endif |
|
|
964 | |
|
|
965 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
966 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
967 | #else |
|
|
968 | /* possible C11 impl for integral types |
|
|
969 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
970 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
971 | |
|
|
972 | #define ecb_is_constant(expr) 0 |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
976 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
977 | #else |
|
|
978 | #define ecb_expect(expr,value) (expr) |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
982 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
983 | #else |
|
|
984 | #define ecb_prefetch(addr,rw,locality) |
|
|
985 | #endif |
|
|
986 | |
|
|
987 | /* no emulation for ecb_decltype */ |
|
|
988 | #if ECB_CPP11 |
|
|
989 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
990 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
991 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
992 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
993 | #define ecb_decltype(x) __typeof__ (x) |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | #if _MSC_VER >= 1300 |
|
|
997 | #define ecb_deprecated __declspec (deprecated) |
|
|
998 | #else |
|
|
999 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
1000 | #endif |
|
|
1001 | |
|
|
1002 | #if _MSC_VER >= 1500 |
|
|
1003 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
1004 | #elif ECB_GCC_VERSION(4,5) |
|
|
1005 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
1006 | #else |
|
|
1007 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
1008 | #endif |
|
|
1009 | |
|
|
1010 | #if _MSC_VER >= 1400 |
|
|
1011 | #define ecb_noinline __declspec (noinline) |
|
|
1012 | #else |
|
|
1013 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
1014 | #endif |
|
|
1015 | |
|
|
1016 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
1017 | #define ecb_const ecb_attribute ((__const__)) |
|
|
1018 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
1019 | |
|
|
1020 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1021 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
1022 | #define ecb_noreturn _Noreturn |
|
|
1023 | #elif ECB_CPP11 |
|
|
1024 | #define ecb_noreturn [[noreturn]] |
|
|
1025 | #elif _MSC_VER >= 1200 |
|
|
1026 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1027 | #define ecb_noreturn __declspec (noreturn) |
|
|
1028 | #else |
|
|
1029 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
1030 | #endif |
|
|
1031 | |
|
|
1032 | #if ECB_GCC_VERSION(4,3) |
|
|
1033 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
1034 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
1035 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
1036 | #else |
|
|
1037 | #define ecb_artificial |
|
|
1038 | #define ecb_hot |
|
|
1039 | #define ecb_cold |
|
|
1040 | #endif |
|
|
1041 | |
|
|
1042 | /* put around conditional expressions if you are very sure that the */ |
|
|
1043 | /* expression is mostly true or mostly false. note that these return */ |
|
|
1044 | /* booleans, not the expression. */ |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
1045 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
1046 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1047 | /* for compatibility to the rest of the world */ |
|
|
1048 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1049 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1050 | |
|
|
1051 | /* count trailing zero bits and count # of one bits */ |
|
|
1052 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1053 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1054 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1055 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1056 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1057 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1058 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1059 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1060 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1061 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1062 | /* no popcountll */ |
|
|
1063 | #else |
|
|
1064 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1065 | ecb_function_ ecb_const int |
|
|
1066 | ecb_ctz32 (uint32_t x) |
|
|
1067 | { |
|
|
1068 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1069 | unsigned long r; |
|
|
1070 | _BitScanForward (&r, x); |
|
|
1071 | return (int)r; |
|
|
1072 | #else |
|
|
1073 | int r = 0; |
|
|
1074 | |
|
|
1075 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1076 | |
|
|
1077 | #if ECB_branchless_on_i386 |
|
|
1078 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1079 | r += !!(x & 0xcccccccc) << 1; |
|
|
1080 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1081 | r += !!(x & 0xff00ff00) << 3; |
|
|
1082 | r += !!(x & 0xffff0000) << 4; |
|
|
1083 | #else |
|
|
1084 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1085 | if (x & 0xcccccccc) r += 2; |
|
|
1086 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1087 | if (x & 0xff00ff00) r += 8; |
|
|
1088 | if (x & 0xffff0000) r += 16; |
|
|
1089 | #endif |
|
|
1090 | |
|
|
1091 | return r; |
|
|
1092 | #endif |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1096 | ecb_function_ ecb_const int |
|
|
1097 | ecb_ctz64 (uint64_t x) |
|
|
1098 | { |
|
|
1099 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1100 | unsigned long r; |
|
|
1101 | _BitScanForward64 (&r, x); |
|
|
1102 | return (int)r; |
|
|
1103 | #else |
|
|
1104 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1105 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1106 | #endif |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1110 | ecb_function_ ecb_const int |
|
|
1111 | ecb_popcount32 (uint32_t x) |
|
|
1112 | { |
|
|
1113 | x -= (x >> 1) & 0x55555555; |
|
|
1114 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1115 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1116 | x *= 0x01010101; |
|
|
1117 | |
|
|
1118 | return x >> 24; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1122 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1123 | { |
|
|
1124 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1125 | unsigned long r; |
|
|
1126 | _BitScanReverse (&r, x); |
|
|
1127 | return (int)r; |
|
|
1128 | #else |
|
|
1129 | int r = 0; |
|
|
1130 | |
|
|
1131 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1132 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1133 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1134 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1135 | if (x >> 1) { r += 1; } |
|
|
1136 | |
|
|
1137 | return r; |
|
|
1138 | #endif |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1142 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1143 | { |
|
|
1144 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1145 | unsigned long r; |
|
|
1146 | _BitScanReverse64 (&r, x); |
|
|
1147 | return (int)r; |
|
|
1148 | #else |
|
|
1149 | int r = 0; |
|
|
1150 | |
|
|
1151 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1152 | |
|
|
1153 | return r + ecb_ld32 (x); |
|
|
1154 | #endif |
|
|
1155 | } |
|
|
1156 | #endif |
|
|
1157 | |
|
|
1158 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1159 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1160 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1161 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1162 | |
|
|
1163 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1164 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1165 | { |
|
|
1166 | return ( (x * 0x0802U & 0x22110U) |
|
|
1167 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1168 | } |
|
|
1169 | |
|
|
1170 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1171 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1172 | { |
|
|
1173 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1174 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1175 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1176 | x = ( x >> 8 ) | ( x << 8); |
|
|
1177 | |
|
|
1178 | return x; |
|
|
1179 | } |
|
|
1180 | |
|
|
1181 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1182 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1183 | { |
|
|
1184 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1185 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1186 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1187 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1188 | x = ( x >> 16 ) | ( x << 16); |
|
|
1189 | |
|
|
1190 | return x; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1194 | /* so for this version we are lazy */ |
|
|
1195 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1196 | ecb_function_ ecb_const int |
|
|
1197 | ecb_popcount64 (uint64_t x) |
|
|
1198 | { |
|
|
1199 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1203 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1204 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1205 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1206 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1207 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1208 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1209 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1210 | |
|
|
1211 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1212 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1213 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1214 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1215 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1216 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1217 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1218 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1219 | |
|
|
1220 | #if ECB_CPP |
|
|
1221 | |
|
|
1222 | inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); } |
|
|
1223 | inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); } |
|
|
1224 | inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); } |
|
|
1225 | inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); } |
|
|
1226 | |
|
|
1227 | inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); } |
|
|
1228 | inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); } |
|
|
1229 | inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); } |
|
|
1230 | inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); } |
|
|
1231 | |
|
|
1232 | inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); } |
|
|
1233 | inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); } |
|
|
1234 | inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); } |
|
|
1235 | inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); } |
|
|
1236 | |
|
|
1237 | inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); } |
|
|
1238 | inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); } |
|
|
1239 | inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); } |
|
|
1240 | inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); } |
|
|
1241 | |
|
|
1242 | inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); } |
|
|
1243 | inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); } |
|
|
1244 | inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); } |
|
|
1245 | |
|
|
1246 | inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); } |
|
|
1247 | inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); } |
|
|
1248 | inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); } |
|
|
1249 | inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); } |
|
|
1250 | |
|
|
1251 | inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); } |
|
|
1252 | inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); } |
|
|
1253 | inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); } |
|
|
1254 | inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); } |
|
|
1255 | |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1259 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1260 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1261 | #else |
|
|
1262 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1263 | #endif |
|
|
1264 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1265 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1266 | #elif _MSC_VER |
|
|
1267 | #include <stdlib.h> |
|
|
1268 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1269 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1270 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1271 | #else |
|
|
1272 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1273 | ecb_function_ ecb_const uint16_t |
|
|
1274 | ecb_bswap16 (uint16_t x) |
|
|
1275 | { |
|
|
1276 | return ecb_rotl16 (x, 8); |
|
|
1277 | } |
|
|
1278 | |
|
|
1279 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1280 | ecb_function_ ecb_const uint32_t |
|
|
1281 | ecb_bswap32 (uint32_t x) |
|
|
1282 | { |
|
|
1283 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1287 | ecb_function_ ecb_const uint64_t |
|
|
1288 | ecb_bswap64 (uint64_t x) |
|
|
1289 | { |
|
|
1290 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1291 | } |
|
|
1292 | #endif |
|
|
1293 | |
|
|
1294 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1295 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1296 | #else |
|
|
1297 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1298 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1299 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1300 | #endif |
|
|
1301 | |
|
|
1302 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1303 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1304 | |
|
|
1305 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1306 | ecb_inline ecb_const uint32_t |
|
|
1307 | ecb_byteorder_helper (void) |
|
|
1308 | { |
|
|
1309 | /* the union code still generates code under pressure in gcc, */ |
|
|
1310 | /* but less than using pointers, and always seems to */ |
|
|
1311 | /* successfully return a constant. */ |
|
|
1312 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1313 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1314 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1315 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1316 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1317 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1318 | return 0x44332211; |
|
|
1319 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1320 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1321 | #define ECB_BIG_ENDIAN 1 |
|
|
1322 | return 0x11223344; |
|
|
1323 | #else |
|
|
1324 | union |
|
|
1325 | { |
|
|
1326 | uint8_t c[4]; |
|
|
1327 | uint32_t u; |
|
|
1328 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1329 | return u.u; |
|
|
1330 | #endif |
|
|
1331 | } |
|
|
1332 | |
|
|
1333 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1334 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1335 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1336 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1337 | |
|
|
1338 | /*****************************************************************************/ |
|
|
1339 | /* unaligned load/store */ |
|
|
1340 | |
|
|
1341 | ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1342 | ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1343 | ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1344 | |
|
|
1345 | ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1346 | ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1347 | ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1348 | |
|
|
1349 | ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1350 | ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1351 | ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1352 | |
|
|
1353 | ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1354 | ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1355 | ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1356 | |
|
|
1357 | ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1358 | ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1359 | ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1360 | |
|
|
1361 | ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1362 | ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1363 | ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1364 | |
|
|
1365 | ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1366 | ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1367 | ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1368 | |
|
|
1369 | ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1370 | ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1371 | ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1372 | |
|
|
1373 | ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); } |
|
|
1374 | ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); } |
|
|
1375 | ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); } |
|
|
1376 | |
|
|
1377 | ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); } |
|
|
1378 | ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); } |
|
|
1379 | ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); } |
|
|
1380 | |
|
|
1381 | #if ECB_CPP |
|
|
1382 | |
|
|
1383 | inline uint8_t ecb_bswap (uint8_t v) { return v; } |
|
|
1384 | inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); } |
|
|
1385 | inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); } |
|
|
1386 | inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); } |
|
|
1387 | |
|
|
1388 | template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1389 | template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1390 | template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; } |
|
|
1391 | template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); } |
|
|
1392 | template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); } |
|
|
1393 | template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1394 | template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1395 | template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1396 | |
|
|
1397 | template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1398 | template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1399 | template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; } |
|
|
1400 | template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); } |
|
|
1401 | template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); } |
|
|
1402 | template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1403 | template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); } |
|
|
1404 | template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); } |
|
|
1405 | |
|
|
1406 | #endif |
|
|
1407 | |
|
|
1408 | /*****************************************************************************/ |
|
|
1409 | |
|
|
1410 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1411 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1412 | #else |
|
|
1413 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1414 | #endif |
|
|
1415 | |
|
|
1416 | #if ECB_CPP |
|
|
1417 | template<typename T> |
|
|
1418 | static inline T ecb_div_rd (T val, T div) |
|
|
1419 | { |
|
|
1420 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1421 | } |
|
|
1422 | template<typename T> |
|
|
1423 | static inline T ecb_div_ru (T val, T div) |
|
|
1424 | { |
|
|
1425 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1426 | } |
|
|
1427 | #else |
|
|
1428 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1429 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1430 | #endif |
|
|
1431 | |
|
|
1432 | #if ecb_cplusplus_does_not_suck |
|
|
1433 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1434 | template<typename T, int N> |
|
|
1435 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1436 | { |
|
|
1437 | return N; |
|
|
1438 | } |
|
|
1439 | #else |
|
|
1440 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1441 | #endif |
|
|
1442 | |
|
|
1443 | /*****************************************************************************/ |
|
|
1444 | |
|
|
1445 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1446 | ecb_function_ ecb_const uint32_t |
|
|
1447 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1448 | { |
|
|
1449 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1450 | int e = (x >> 10) & 0x001f; |
|
|
1451 | unsigned int m = x & 0x03ff; |
|
|
1452 | |
|
|
1453 | if (ecb_expect_false (e == 31)) |
|
|
1454 | /* infinity or NaN */ |
|
|
1455 | e = 255 - (127 - 15); |
|
|
1456 | else if (ecb_expect_false (!e)) |
|
|
1457 | { |
|
|
1458 | if (ecb_expect_true (!m)) |
|
|
1459 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1460 | e = 0 - (127 - 15); |
|
|
1461 | else |
|
|
1462 | { |
|
|
1463 | /* subnormal, renormalise */ |
|
|
1464 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1465 | |
|
|
1466 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1467 | e -= s - 1; |
|
|
1468 | } |
|
|
1469 | } |
|
|
1470 | |
|
|
1471 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1472 | e += 127 - 15; |
|
|
1473 | |
|
|
1474 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1478 | ecb_function_ ecb_const uint16_t |
|
|
1479 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1480 | { |
|
|
1481 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1482 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1483 | unsigned int m = x & 0x007fffff; |
|
|
1484 | |
|
|
1485 | x &= 0x7fffffff; |
|
|
1486 | |
|
|
1487 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1488 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1489 | { |
|
|
1490 | /* mantissa round-to-even */ |
|
|
1491 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1492 | |
|
|
1493 | /* handle overflow */ |
|
|
1494 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1495 | { |
|
|
1496 | m >>= 1; |
|
|
1497 | e += 1; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1501 | } |
|
|
1502 | |
|
|
1503 | /* handle large numbers and infinity */ |
|
|
1504 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1505 | return s | 0x7c00; |
|
|
1506 | |
|
|
1507 | /* handle zero, subnormals and small numbers */ |
|
|
1508 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1509 | { |
|
|
1510 | /* zero */ |
|
|
1511 | if (ecb_expect_true (!x)) |
|
|
1512 | return s; |
|
|
1513 | |
|
|
1514 | /* handle subnormals */ |
|
|
1515 | |
|
|
1516 | /* too small, will be zero */ |
|
|
1517 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1518 | return s; |
|
|
1519 | |
|
|
1520 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1521 | |
|
|
1522 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1523 | { |
|
|
1524 | unsigned int bits = 14 - e; |
|
|
1525 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1526 | unsigned int even = (m >> bits) & 1; |
|
|
1527 | |
|
|
1528 | /* if this overflows, we will end up with a normalised number */ |
|
|
1529 | m = (m + half + even) >> bits; |
|
|
1530 | } |
|
|
1531 | |
|
|
1532 | return s | m; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1536 | m >>= 13; |
|
|
1537 | |
|
|
1538 | return s | 0x7c00 | m | !m; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | /*******************************************************************************/ |
|
|
1542 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1543 | |
|
|
1544 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1545 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1546 | #if 0 \ |
|
|
1547 | || __i386 || __i386__ \ |
|
|
1548 | || ECB_GCC_AMD64 \ |
|
|
1549 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1550 | || defined __s390__ || defined __s390x__ \ |
|
|
1551 | || defined __mips__ \ |
|
|
1552 | || defined __alpha__ \ |
|
|
1553 | || defined __hppa__ \ |
|
|
1554 | || defined __ia64__ \ |
|
|
1555 | || defined __m68k__ \ |
|
|
1556 | || defined __m88k__ \ |
|
|
1557 | || defined __sh__ \ |
|
|
1558 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1559 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1560 | || defined __aarch64__ |
|
|
1561 | #define ECB_STDFP 1 |
|
|
1562 | #else |
|
|
1563 | #define ECB_STDFP 0 |
|
|
1564 | #endif |
|
|
1565 | |
|
|
1566 | #ifndef ECB_NO_LIBM |
|
|
1567 | |
|
|
1568 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1569 | |
|
|
1570 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1571 | #ifdef INFINITY |
|
|
1572 | #define ECB_INFINITY INFINITY |
|
|
1573 | #else |
|
|
1574 | #define ECB_INFINITY HUGE_VAL |
|
|
1575 | #endif |
|
|
1576 | |
|
|
1577 | #ifdef NAN |
|
|
1578 | #define ECB_NAN NAN |
|
|
1579 | #else |
|
|
1580 | #define ECB_NAN ECB_INFINITY |
|
|
1581 | #endif |
|
|
1582 | |
|
|
1583 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1584 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1585 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1586 | #else |
|
|
1587 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1588 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1589 | #endif |
|
|
1590 | |
|
|
1591 | /* convert a float to ieee single/binary32 */ |
|
|
1592 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1593 | ecb_function_ ecb_const uint32_t |
|
|
1594 | ecb_float_to_binary32 (float x) |
|
|
1595 | { |
|
|
1596 | uint32_t r; |
|
|
1597 | |
|
|
1598 | #if ECB_STDFP |
|
|
1599 | memcpy (&r, &x, 4); |
|
|
1600 | #else |
|
|
1601 | /* slow emulation, works for anything but -0 */ |
|
|
1602 | uint32_t m; |
|
|
1603 | int e; |
|
|
1604 | |
|
|
1605 | if (x == 0e0f ) return 0x00000000U; |
|
|
1606 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1607 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1608 | if (x != x ) return 0x7fbfffffU; |
|
|
1609 | |
|
|
1610 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1611 | |
|
|
1612 | r = m & 0x80000000U; |
|
|
1613 | |
|
|
1614 | if (r) |
|
|
1615 | m = -m; |
|
|
1616 | |
|
|
1617 | if (e <= -126) |
|
|
1618 | { |
|
|
1619 | m &= 0xffffffU; |
|
|
1620 | m >>= (-125 - e); |
|
|
1621 | e = -126; |
|
|
1622 | } |
|
|
1623 | |
|
|
1624 | r |= (e + 126) << 23; |
|
|
1625 | r |= m & 0x7fffffU; |
|
|
1626 | #endif |
|
|
1627 | |
|
|
1628 | return r; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | /* converts an ieee single/binary32 to a float */ |
|
|
1632 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1633 | ecb_function_ ecb_const float |
|
|
1634 | ecb_binary32_to_float (uint32_t x) |
|
|
1635 | { |
|
|
1636 | float r; |
|
|
1637 | |
|
|
1638 | #if ECB_STDFP |
|
|
1639 | memcpy (&r, &x, 4); |
|
|
1640 | #else |
|
|
1641 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1642 | int neg = x >> 31; |
|
|
1643 | int e = (x >> 23) & 0xffU; |
|
|
1644 | |
|
|
1645 | x &= 0x7fffffU; |
|
|
1646 | |
|
|
1647 | if (e) |
|
|
1648 | x |= 0x800000U; |
|
|
1649 | else |
|
|
1650 | e = 1; |
|
|
1651 | |
|
|
1652 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1653 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1654 | |
|
|
1655 | r = neg ? -r : r; |
|
|
1656 | #endif |
|
|
1657 | |
|
|
1658 | return r; |
|
|
1659 | } |
|
|
1660 | |
|
|
1661 | /* convert a double to ieee double/binary64 */ |
|
|
1662 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1663 | ecb_function_ ecb_const uint64_t |
|
|
1664 | ecb_double_to_binary64 (double x) |
|
|
1665 | { |
|
|
1666 | uint64_t r; |
|
|
1667 | |
|
|
1668 | #if ECB_STDFP |
|
|
1669 | memcpy (&r, &x, 8); |
|
|
1670 | #else |
|
|
1671 | /* slow emulation, works for anything but -0 */ |
|
|
1672 | uint64_t m; |
|
|
1673 | int e; |
|
|
1674 | |
|
|
1675 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1676 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1677 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1678 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1679 | |
|
|
1680 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1681 | |
|
|
1682 | r = m & 0x8000000000000000;; |
|
|
1683 | |
|
|
1684 | if (r) |
|
|
1685 | m = -m; |
|
|
1686 | |
|
|
1687 | if (e <= -1022) |
|
|
1688 | { |
|
|
1689 | m &= 0x1fffffffffffffU; |
|
|
1690 | m >>= (-1021 - e); |
|
|
1691 | e = -1022; |
|
|
1692 | } |
|
|
1693 | |
|
|
1694 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1695 | r |= m & 0xfffffffffffffU; |
|
|
1696 | #endif |
|
|
1697 | |
|
|
1698 | return r; |
|
|
1699 | } |
|
|
1700 | |
|
|
1701 | /* converts an ieee double/binary64 to a double */ |
|
|
1702 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1703 | ecb_function_ ecb_const double |
|
|
1704 | ecb_binary64_to_double (uint64_t x) |
|
|
1705 | { |
|
|
1706 | double r; |
|
|
1707 | |
|
|
1708 | #if ECB_STDFP |
|
|
1709 | memcpy (&r, &x, 8); |
|
|
1710 | #else |
|
|
1711 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1712 | int neg = x >> 63; |
|
|
1713 | int e = (x >> 52) & 0x7ffU; |
|
|
1714 | |
|
|
1715 | x &= 0xfffffffffffffU; |
|
|
1716 | |
|
|
1717 | if (e) |
|
|
1718 | x |= 0x10000000000000U; |
|
|
1719 | else |
|
|
1720 | e = 1; |
|
|
1721 | |
|
|
1722 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1723 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1724 | |
|
|
1725 | r = neg ? -r : r; |
|
|
1726 | #endif |
|
|
1727 | |
|
|
1728 | return r; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | /* convert a float to ieee half/binary16 */ |
|
|
1732 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1733 | ecb_function_ ecb_const uint16_t |
|
|
1734 | ecb_float_to_binary16 (float x) |
|
|
1735 | { |
|
|
1736 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | /* convert an ieee half/binary16 to float */ |
|
|
1740 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1741 | ecb_function_ ecb_const float |
|
|
1742 | ecb_binary16_to_float (uint16_t x) |
|
|
1743 | { |
|
|
1744 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1745 | } |
|
|
1746 | |
|
|
1747 | #endif |
|
|
1748 | |
|
|
1749 | #endif |
|
|
1750 | |
|
|
1751 | /* ECB.H END */ |
|
|
1752 | |
|
|
1753 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1754 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1755 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1756 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1757 | * libev, in which cases the memory fences become nops. |
|
|
1758 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1759 | * which will then provide the memory fences. |
|
|
1760 | */ |
|
|
1761 | # error "memory fences not defined for your architecture, please report" |
|
|
1762 | #endif |
|
|
1763 | |
|
|
1764 | #ifndef ECB_MEMORY_FENCE |
|
|
1765 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1766 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1767 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1768 | #endif |
|
|
1769 | |
476 | #define inline_size static inline |
1770 | #define inline_size ecb_inline |
477 | |
1771 | |
478 | #if EV_FEATURE_CODE |
1772 | #if EV_FEATURE_CODE |
479 | # define inline_speed static inline |
1773 | # define inline_speed ecb_inline |
480 | #else |
1774 | #else |
481 | # define inline_speed static noinline |
1775 | # define inline_speed ecb_noinline static |
482 | #endif |
1776 | #endif |
|
|
1777 | |
|
|
1778 | /*****************************************************************************/ |
|
|
1779 | /* raw syscall wrappers */ |
|
|
1780 | |
|
|
1781 | #if EV_NEED_SYSCALL |
|
|
1782 | |
|
|
1783 | #include <sys/syscall.h> |
|
|
1784 | |
|
|
1785 | /* |
|
|
1786 | * define some syscall wrappers for common architectures |
|
|
1787 | * this is mostly for nice looks during debugging, not performance. |
|
|
1788 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1789 | * enough for linux aio. |
|
|
1790 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1791 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1792 | */ |
|
|
1793 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1794 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1795 | |
|
|
1796 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1797 | ({ \ |
|
|
1798 | long res; \ |
|
|
1799 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1800 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1801 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1802 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1803 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1804 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1805 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1806 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1807 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1808 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1809 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1810 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1811 | __asm__ __volatile__ ( \ |
|
|
1812 | "syscall\n\t" \ |
|
|
1813 | : "=a" (res) \ |
|
|
1814 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1815 | : "cc", "r11", "cx", "memory"); \ |
|
|
1816 | errno = -res; \ |
|
|
1817 | res; \ |
|
|
1818 | }) |
|
|
1819 | |
|
|
1820 | #endif |
|
|
1821 | |
|
|
1822 | #ifdef ev_syscall |
|
|
1823 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1824 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1825 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1826 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1827 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1828 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1829 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1830 | #else |
|
|
1831 | #define ev_syscall0(nr) syscall (nr) |
|
|
1832 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1833 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1834 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1835 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1836 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1837 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1838 | #endif |
|
|
1839 | |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | /*****************************************************************************/ |
483 | |
1843 | |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1844 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
485 | |
1845 | |
486 | #if EV_MINPRI == EV_MAXPRI |
1846 | #if EV_MINPRI == EV_MAXPRI |
487 | # define ABSPRI(w) (((W)w), 0) |
1847 | # define ABSPRI(w) (((W)w), 0) |
488 | #else |
1848 | #else |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1849 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
490 | #endif |
1850 | #endif |
491 | |
1851 | |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1852 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
494 | |
1853 | |
495 | typedef ev_watcher *W; |
1854 | typedef ev_watcher *W; |
496 | typedef ev_watcher_list *WL; |
1855 | typedef ev_watcher_list *WL; |
497 | typedef ev_watcher_time *WT; |
1856 | typedef ev_watcher_time *WT; |
498 | |
1857 | |
… | |
… | |
523 | # include "ev_win32.c" |
1882 | # include "ev_win32.c" |
524 | #endif |
1883 | #endif |
525 | |
1884 | |
526 | /*****************************************************************************/ |
1885 | /*****************************************************************************/ |
527 | |
1886 | |
|
|
1887 | #if EV_USE_LINUXAIO |
|
|
1888 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1889 | #endif |
|
|
1890 | |
|
|
1891 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1892 | |
|
|
1893 | #if EV_USE_FLOOR |
|
|
1894 | # include <math.h> |
|
|
1895 | # define ev_floor(v) floor (v) |
|
|
1896 | #else |
|
|
1897 | |
|
|
1898 | #include <float.h> |
|
|
1899 | |
|
|
1900 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1901 | ecb_noinline |
|
|
1902 | static ev_tstamp |
|
|
1903 | ev_floor (ev_tstamp v) |
|
|
1904 | { |
|
|
1905 | /* the choice of shift factor is not terribly important */ |
|
|
1906 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1907 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1908 | #else |
|
|
1909 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1910 | #endif |
|
|
1911 | |
|
|
1912 | /* special treatment for negative arguments */ |
|
|
1913 | if (ecb_expect_false (v < 0.)) |
|
|
1914 | { |
|
|
1915 | ev_tstamp f = -ev_floor (-v); |
|
|
1916 | |
|
|
1917 | return f - (f == v ? 0 : 1); |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1921 | if (ecb_expect_false (v >= shift)) |
|
|
1922 | { |
|
|
1923 | ev_tstamp f; |
|
|
1924 | |
|
|
1925 | if (v == v - 1.) |
|
|
1926 | return v; /* very large numbers are assumed to be integer */ |
|
|
1927 | |
|
|
1928 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1929 | return f + ev_floor (v - f); |
|
|
1930 | } |
|
|
1931 | |
|
|
1932 | /* fits into an unsigned long */ |
|
|
1933 | return (unsigned long)v; |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | #endif |
|
|
1937 | |
|
|
1938 | /*****************************************************************************/ |
|
|
1939 | |
528 | #ifdef __linux |
1940 | #ifdef __linux |
529 | # include <sys/utsname.h> |
1941 | # include <sys/utsname.h> |
530 | #endif |
1942 | #endif |
531 | |
1943 | |
|
|
1944 | ecb_noinline ecb_cold |
532 | static unsigned int noinline |
1945 | static unsigned int |
533 | ev_linux_version (void) |
1946 | ev_linux_version (void) |
534 | { |
1947 | { |
535 | #ifdef __linux |
1948 | #ifdef __linux |
536 | unsigned int v = 0; |
1949 | unsigned int v = 0; |
537 | struct utsname buf; |
1950 | struct utsname buf; |
… | |
… | |
566 | } |
1979 | } |
567 | |
1980 | |
568 | /*****************************************************************************/ |
1981 | /*****************************************************************************/ |
569 | |
1982 | |
570 | #if EV_AVOID_STDIO |
1983 | #if EV_AVOID_STDIO |
571 | static void noinline |
1984 | ecb_noinline ecb_cold |
|
|
1985 | static void |
572 | ev_printerr (const char *msg) |
1986 | ev_printerr (const char *msg) |
573 | { |
1987 | { |
574 | write (STDERR_FILENO, msg, strlen (msg)); |
1988 | write (STDERR_FILENO, msg, strlen (msg)); |
575 | } |
1989 | } |
576 | #endif |
1990 | #endif |
577 | |
1991 | |
578 | static void (*syserr_cb)(const char *msg); |
1992 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
579 | |
1993 | |
|
|
1994 | ecb_cold |
580 | void |
1995 | void |
581 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1996 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
582 | { |
1997 | { |
583 | syserr_cb = cb; |
1998 | syserr_cb = cb; |
584 | } |
1999 | } |
585 | |
2000 | |
586 | static void noinline |
2001 | ecb_noinline ecb_cold |
|
|
2002 | static void |
587 | ev_syserr (const char *msg) |
2003 | ev_syserr (const char *msg) |
588 | { |
2004 | { |
589 | if (!msg) |
2005 | if (!msg) |
590 | msg = "(libev) system error"; |
2006 | msg = "(libev) system error"; |
591 | |
2007 | |
… | |
… | |
604 | abort (); |
2020 | abort (); |
605 | } |
2021 | } |
606 | } |
2022 | } |
607 | |
2023 | |
608 | static void * |
2024 | static void * |
609 | ev_realloc_emul (void *ptr, long size) |
2025 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
610 | { |
2026 | { |
611 | #if __GLIBC__ |
|
|
612 | return realloc (ptr, size); |
|
|
613 | #else |
|
|
614 | /* some systems, notably openbsd and darwin, fail to properly |
2027 | /* some systems, notably openbsd and darwin, fail to properly |
615 | * implement realloc (x, 0) (as required by both ansi c-89 and |
2028 | * implement realloc (x, 0) (as required by both ansi c-89 and |
616 | * the single unix specification, so work around them here. |
2029 | * the single unix specification, so work around them here. |
|
|
2030 | * recently, also (at least) fedora and debian started breaking it, |
|
|
2031 | * despite documenting it otherwise. |
617 | */ |
2032 | */ |
618 | |
2033 | |
619 | if (size) |
2034 | if (size) |
620 | return realloc (ptr, size); |
2035 | return realloc (ptr, size); |
621 | |
2036 | |
622 | free (ptr); |
2037 | free (ptr); |
623 | return 0; |
2038 | return 0; |
624 | #endif |
|
|
625 | } |
2039 | } |
626 | |
2040 | |
627 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
2041 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
628 | |
2042 | |
|
|
2043 | ecb_cold |
629 | void |
2044 | void |
630 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
2045 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
631 | { |
2046 | { |
632 | alloc = cb; |
2047 | alloc = cb; |
633 | } |
2048 | } |
634 | |
2049 | |
635 | inline_speed void * |
2050 | inline_speed void * |
… | |
… | |
662 | typedef struct |
2077 | typedef struct |
663 | { |
2078 | { |
664 | WL head; |
2079 | WL head; |
665 | unsigned char events; /* the events watched for */ |
2080 | unsigned char events; /* the events watched for */ |
666 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
2081 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
667 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
2082 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
668 | unsigned char unused; |
2083 | unsigned char eflags; /* flags field for use by backends */ |
669 | #if EV_USE_EPOLL |
2084 | #if EV_USE_EPOLL |
670 | unsigned int egen; /* generation counter to counter epoll bugs */ |
2085 | unsigned int egen; /* generation counter to counter epoll bugs */ |
671 | #endif |
2086 | #endif |
672 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2087 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
673 | SOCKET handle; |
2088 | SOCKET handle; |
… | |
… | |
723 | #undef VAR |
2138 | #undef VAR |
724 | }; |
2139 | }; |
725 | #include "ev_wrap.h" |
2140 | #include "ev_wrap.h" |
726 | |
2141 | |
727 | static struct ev_loop default_loop_struct; |
2142 | static struct ev_loop default_loop_struct; |
728 | struct ev_loop *ev_default_loop_ptr; |
2143 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
729 | |
2144 | |
730 | #else |
2145 | #else |
731 | |
2146 | |
732 | ev_tstamp ev_rt_now; |
2147 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
733 | #define VAR(name,decl) static decl; |
2148 | #define VAR(name,decl) static decl; |
734 | #include "ev_vars.h" |
2149 | #include "ev_vars.h" |
735 | #undef VAR |
2150 | #undef VAR |
736 | |
2151 | |
737 | static int ev_default_loop_ptr; |
2152 | static int ev_default_loop_ptr; |
738 | |
2153 | |
739 | #endif |
2154 | #endif |
740 | |
2155 | |
741 | #if EV_FEATURE_API |
2156 | #if EV_FEATURE_API |
742 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2157 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
743 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2158 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
744 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2159 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
745 | #else |
2160 | #else |
746 | # define EV_RELEASE_CB (void)0 |
2161 | # define EV_RELEASE_CB (void)0 |
747 | # define EV_ACQUIRE_CB (void)0 |
2162 | # define EV_ACQUIRE_CB (void)0 |
748 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2163 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
752 | |
2167 | |
753 | /*****************************************************************************/ |
2168 | /*****************************************************************************/ |
754 | |
2169 | |
755 | #ifndef EV_HAVE_EV_TIME |
2170 | #ifndef EV_HAVE_EV_TIME |
756 | ev_tstamp |
2171 | ev_tstamp |
757 | ev_time (void) |
2172 | ev_time (void) EV_NOEXCEPT |
758 | { |
2173 | { |
759 | #if EV_USE_REALTIME |
2174 | #if EV_USE_REALTIME |
760 | if (expect_true (have_realtime)) |
2175 | if (ecb_expect_true (have_realtime)) |
761 | { |
2176 | { |
762 | struct timespec ts; |
2177 | struct timespec ts; |
763 | clock_gettime (CLOCK_REALTIME, &ts); |
2178 | clock_gettime (CLOCK_REALTIME, &ts); |
764 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2179 | return EV_TS_GET (ts); |
765 | } |
2180 | } |
766 | #endif |
2181 | #endif |
767 | |
2182 | |
|
|
2183 | { |
768 | struct timeval tv; |
2184 | struct timeval tv; |
769 | gettimeofday (&tv, 0); |
2185 | gettimeofday (&tv, 0); |
770 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2186 | return EV_TV_GET (tv); |
|
|
2187 | } |
771 | } |
2188 | } |
772 | #endif |
2189 | #endif |
773 | |
2190 | |
774 | inline_size ev_tstamp |
2191 | inline_size ev_tstamp |
775 | get_clock (void) |
2192 | get_clock (void) |
776 | { |
2193 | { |
777 | #if EV_USE_MONOTONIC |
2194 | #if EV_USE_MONOTONIC |
778 | if (expect_true (have_monotonic)) |
2195 | if (ecb_expect_true (have_monotonic)) |
779 | { |
2196 | { |
780 | struct timespec ts; |
2197 | struct timespec ts; |
781 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2198 | clock_gettime (CLOCK_MONOTONIC, &ts); |
782 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2199 | return EV_TS_GET (ts); |
783 | } |
2200 | } |
784 | #endif |
2201 | #endif |
785 | |
2202 | |
786 | return ev_time (); |
2203 | return ev_time (); |
787 | } |
2204 | } |
788 | |
2205 | |
789 | #if EV_MULTIPLICITY |
2206 | #if EV_MULTIPLICITY |
790 | ev_tstamp |
2207 | ev_tstamp |
791 | ev_now (EV_P) |
2208 | ev_now (EV_P) EV_NOEXCEPT |
792 | { |
2209 | { |
793 | return ev_rt_now; |
2210 | return ev_rt_now; |
794 | } |
2211 | } |
795 | #endif |
2212 | #endif |
796 | |
2213 | |
797 | void |
2214 | void |
798 | ev_sleep (ev_tstamp delay) |
2215 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
799 | { |
2216 | { |
800 | if (delay > 0.) |
2217 | if (delay > EV_TS_CONST (0.)) |
801 | { |
2218 | { |
802 | #if EV_USE_NANOSLEEP |
2219 | #if EV_USE_NANOSLEEP |
803 | struct timespec ts; |
2220 | struct timespec ts; |
804 | |
2221 | |
805 | EV_TS_SET (ts, delay); |
2222 | EV_TS_SET (ts, delay); |
806 | nanosleep (&ts, 0); |
2223 | nanosleep (&ts, 0); |
807 | #elif defined(_WIN32) |
2224 | #elif defined _WIN32 |
|
|
2225 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2226 | /* compared to select (µs) or nanosleep (ns) */ |
808 | Sleep ((unsigned long)(delay * 1e3)); |
2227 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
809 | #else |
2228 | #else |
810 | struct timeval tv; |
2229 | struct timeval tv; |
811 | |
2230 | |
812 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2231 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
813 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2232 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
816 | select (0, 0, 0, 0, &tv); |
2235 | select (0, 0, 0, 0, &tv); |
817 | #endif |
2236 | #endif |
818 | } |
2237 | } |
819 | } |
2238 | } |
820 | |
2239 | |
821 | inline_speed int |
|
|
822 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
823 | { |
|
|
824 | int ms = timeout * 1000. + .999999; |
|
|
825 | |
|
|
826 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
827 | } |
|
|
828 | |
|
|
829 | /*****************************************************************************/ |
2240 | /*****************************************************************************/ |
830 | |
2241 | |
831 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2242 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
832 | |
2243 | |
833 | /* find a suitable new size for the given array, */ |
2244 | /* find a suitable new size for the given array, */ |
… | |
… | |
839 | |
2250 | |
840 | do |
2251 | do |
841 | ncur <<= 1; |
2252 | ncur <<= 1; |
842 | while (cnt > ncur); |
2253 | while (cnt > ncur); |
843 | |
2254 | |
844 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2255 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
845 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2256 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
846 | { |
2257 | { |
847 | ncur *= elem; |
2258 | ncur *= elem; |
848 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2259 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
849 | ncur = ncur - sizeof (void *) * 4; |
2260 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
851 | } |
2262 | } |
852 | |
2263 | |
853 | return ncur; |
2264 | return ncur; |
854 | } |
2265 | } |
855 | |
2266 | |
856 | static noinline void * |
2267 | ecb_noinline ecb_cold |
|
|
2268 | static void * |
857 | array_realloc (int elem, void *base, int *cur, int cnt) |
2269 | array_realloc (int elem, void *base, int *cur, int cnt) |
858 | { |
2270 | { |
859 | *cur = array_nextsize (elem, *cur, cnt); |
2271 | *cur = array_nextsize (elem, *cur, cnt); |
860 | return ev_realloc (base, elem * *cur); |
2272 | return ev_realloc (base, elem * *cur); |
861 | } |
2273 | } |
862 | |
2274 | |
|
|
2275 | #define array_needsize_noinit(base,offset,count) |
|
|
2276 | |
863 | #define array_init_zero(base,count) \ |
2277 | #define array_needsize_zerofill(base,offset,count) \ |
864 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2278 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
865 | |
2279 | |
866 | #define array_needsize(type,base,cur,cnt,init) \ |
2280 | #define array_needsize(type,base,cur,cnt,init) \ |
867 | if (expect_false ((cnt) > (cur))) \ |
2281 | if (ecb_expect_false ((cnt) > (cur))) \ |
868 | { \ |
2282 | { \ |
869 | int ocur_ = (cur); \ |
2283 | ecb_unused int ocur_ = (cur); \ |
870 | (base) = (type *)array_realloc \ |
2284 | (base) = (type *)array_realloc \ |
871 | (sizeof (type), (base), &(cur), (cnt)); \ |
2285 | (sizeof (type), (base), &(cur), (cnt)); \ |
872 | init ((base) + (ocur_), (cur) - ocur_); \ |
2286 | init ((base), ocur_, ((cur) - ocur_)); \ |
873 | } |
2287 | } |
874 | |
2288 | |
875 | #if 0 |
2289 | #if 0 |
876 | #define array_slim(type,stem) \ |
2290 | #define array_slim(type,stem) \ |
877 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2291 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
886 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2300 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
887 | |
2301 | |
888 | /*****************************************************************************/ |
2302 | /*****************************************************************************/ |
889 | |
2303 | |
890 | /* dummy callback for pending events */ |
2304 | /* dummy callback for pending events */ |
891 | static void noinline |
2305 | ecb_noinline |
|
|
2306 | static void |
892 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2307 | pendingcb (EV_P_ ev_prepare *w, int revents) |
893 | { |
2308 | { |
894 | } |
2309 | } |
895 | |
2310 | |
896 | void noinline |
2311 | ecb_noinline |
|
|
2312 | void |
897 | ev_feed_event (EV_P_ void *w, int revents) |
2313 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
898 | { |
2314 | { |
899 | W w_ = (W)w; |
2315 | W w_ = (W)w; |
900 | int pri = ABSPRI (w_); |
2316 | int pri = ABSPRI (w_); |
901 | |
2317 | |
902 | if (expect_false (w_->pending)) |
2318 | if (ecb_expect_false (w_->pending)) |
903 | pendings [pri][w_->pending - 1].events |= revents; |
2319 | pendings [pri][w_->pending - 1].events |= revents; |
904 | else |
2320 | else |
905 | { |
2321 | { |
906 | w_->pending = ++pendingcnt [pri]; |
2322 | w_->pending = ++pendingcnt [pri]; |
907 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2323 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
908 | pendings [pri][w_->pending - 1].w = w_; |
2324 | pendings [pri][w_->pending - 1].w = w_; |
909 | pendings [pri][w_->pending - 1].events = revents; |
2325 | pendings [pri][w_->pending - 1].events = revents; |
910 | } |
2326 | } |
|
|
2327 | |
|
|
2328 | pendingpri = NUMPRI - 1; |
911 | } |
2329 | } |
912 | |
2330 | |
913 | inline_speed void |
2331 | inline_speed void |
914 | feed_reverse (EV_P_ W w) |
2332 | feed_reverse (EV_P_ W w) |
915 | { |
2333 | { |
916 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2334 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
917 | rfeeds [rfeedcnt++] = w; |
2335 | rfeeds [rfeedcnt++] = w; |
918 | } |
2336 | } |
919 | |
2337 | |
920 | inline_size void |
2338 | inline_size void |
921 | feed_reverse_done (EV_P_ int revents) |
2339 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
956 | inline_speed void |
2374 | inline_speed void |
957 | fd_event (EV_P_ int fd, int revents) |
2375 | fd_event (EV_P_ int fd, int revents) |
958 | { |
2376 | { |
959 | ANFD *anfd = anfds + fd; |
2377 | ANFD *anfd = anfds + fd; |
960 | |
2378 | |
961 | if (expect_true (!anfd->reify)) |
2379 | if (ecb_expect_true (!anfd->reify)) |
962 | fd_event_nocheck (EV_A_ fd, revents); |
2380 | fd_event_nocheck (EV_A_ fd, revents); |
963 | } |
2381 | } |
964 | |
2382 | |
965 | void |
2383 | void |
966 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2384 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
967 | { |
2385 | { |
968 | if (fd >= 0 && fd < anfdmax) |
2386 | if (fd >= 0 && fd < anfdmax) |
969 | fd_event_nocheck (EV_A_ fd, revents); |
2387 | fd_event_nocheck (EV_A_ fd, revents); |
970 | } |
2388 | } |
971 | |
2389 | |
… | |
… | |
974 | inline_size void |
2392 | inline_size void |
975 | fd_reify (EV_P) |
2393 | fd_reify (EV_P) |
976 | { |
2394 | { |
977 | int i; |
2395 | int i; |
978 | |
2396 | |
|
|
2397 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2398 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2399 | * to handle events in backend_modify, causing fdchanges to be amended, |
|
|
2400 | * which could result in an endless loop. |
|
|
2401 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2402 | * during fd_reify. that means that for those backends, fdchangecnt |
|
|
2403 | * might be non-zero during poll, which must cause them to not block. |
|
|
2404 | * to not put too much of a burden on other backends, this detail |
|
|
2405 | * needs to be handled in the backend. |
|
|
2406 | */ |
|
|
2407 | int changecnt = fdchangecnt; |
|
|
2408 | |
|
|
2409 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
979 | for (i = 0; i < fdchangecnt; ++i) |
2410 | for (i = 0; i < changecnt; ++i) |
|
|
2411 | { |
|
|
2412 | int fd = fdchanges [i]; |
|
|
2413 | ANFD *anfd = anfds + fd; |
|
|
2414 | |
|
|
2415 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2416 | { |
|
|
2417 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2418 | |
|
|
2419 | if (handle != anfd->handle) |
|
|
2420 | { |
|
|
2421 | unsigned long arg; |
|
|
2422 | |
|
|
2423 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2424 | |
|
|
2425 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2426 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2427 | anfd->events = 0; |
|
|
2428 | anfd->handle = handle; |
|
|
2429 | } |
|
|
2430 | } |
|
|
2431 | } |
|
|
2432 | #endif |
|
|
2433 | |
|
|
2434 | for (i = 0; i < changecnt; ++i) |
980 | { |
2435 | { |
981 | int fd = fdchanges [i]; |
2436 | int fd = fdchanges [i]; |
982 | ANFD *anfd = anfds + fd; |
2437 | ANFD *anfd = anfds + fd; |
983 | ev_io *w; |
2438 | ev_io *w; |
984 | |
2439 | |
985 | unsigned char o_events = anfd->events; |
2440 | unsigned char o_events = anfd->events; |
986 | unsigned char o_reify = anfd->reify; |
2441 | unsigned char o_reify = anfd->reify; |
987 | |
2442 | |
988 | anfd->reify = 0; |
2443 | anfd->reify = 0; |
989 | |
2444 | |
990 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
991 | if (o_reify & EV__IOFDSET) |
|
|
992 | { |
|
|
993 | unsigned long arg; |
|
|
994 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
995 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
996 | printf ("oi %d %x\n", fd, anfd->handle);//D |
|
|
997 | } |
|
|
998 | #endif |
|
|
999 | |
|
|
1000 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2445 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1001 | { |
2446 | { |
1002 | anfd->events = 0; |
2447 | anfd->events = 0; |
1003 | |
2448 | |
1004 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2449 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1005 | anfd->events |= (unsigned char)w->events; |
2450 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1010 | |
2455 | |
1011 | if (o_reify & EV__IOFDSET) |
2456 | if (o_reify & EV__IOFDSET) |
1012 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2457 | backend_modify (EV_A_ fd, o_events, anfd->events); |
1013 | } |
2458 | } |
1014 | |
2459 | |
|
|
2460 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2461 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2462 | * front and hope the backend handles this case. |
|
|
2463 | */ |
|
|
2464 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2465 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2466 | |
1015 | fdchangecnt = 0; |
2467 | fdchangecnt -= changecnt; |
1016 | } |
2468 | } |
1017 | |
2469 | |
1018 | /* something about the given fd changed */ |
2470 | /* something about the given fd changed */ |
1019 | inline_size void |
2471 | inline_size |
|
|
2472 | void |
1020 | fd_change (EV_P_ int fd, int flags) |
2473 | fd_change (EV_P_ int fd, int flags) |
1021 | { |
2474 | { |
1022 | unsigned char reify = anfds [fd].reify; |
2475 | unsigned char reify = anfds [fd].reify; |
1023 | anfds [fd].reify |= flags; |
2476 | anfds [fd].reify = reify | flags; |
1024 | |
2477 | |
1025 | if (expect_true (!reify)) |
2478 | if (ecb_expect_true (!reify)) |
1026 | { |
2479 | { |
1027 | ++fdchangecnt; |
2480 | ++fdchangecnt; |
1028 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2481 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1029 | fdchanges [fdchangecnt - 1] = fd; |
2482 | fdchanges [fdchangecnt - 1] = fd; |
1030 | } |
2483 | } |
1031 | } |
2484 | } |
1032 | |
2485 | |
1033 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2486 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1034 | inline_speed void |
2487 | inline_speed ecb_cold void |
1035 | fd_kill (EV_P_ int fd) |
2488 | fd_kill (EV_P_ int fd) |
1036 | { |
2489 | { |
1037 | ev_io *w; |
2490 | ev_io *w; |
1038 | |
2491 | |
1039 | while ((w = (ev_io *)anfds [fd].head)) |
2492 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1042 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1043 | } |
2496 | } |
1044 | } |
2497 | } |
1045 | |
2498 | |
1046 | /* check whether the given fd is actually valid, for error recovery */ |
2499 | /* check whether the given fd is actually valid, for error recovery */ |
1047 | inline_size int |
2500 | inline_size ecb_cold int |
1048 | fd_valid (int fd) |
2501 | fd_valid (int fd) |
1049 | { |
2502 | { |
1050 | #ifdef _WIN32 |
2503 | #ifdef _WIN32 |
1051 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2504 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1052 | #else |
2505 | #else |
1053 | return fcntl (fd, F_GETFD) != -1; |
2506 | return fcntl (fd, F_GETFD) != -1; |
1054 | #endif |
2507 | #endif |
1055 | } |
2508 | } |
1056 | |
2509 | |
1057 | /* called on EBADF to verify fds */ |
2510 | /* called on EBADF to verify fds */ |
1058 | static void noinline |
2511 | ecb_noinline ecb_cold |
|
|
2512 | static void |
1059 | fd_ebadf (EV_P) |
2513 | fd_ebadf (EV_P) |
1060 | { |
2514 | { |
1061 | int fd; |
2515 | int fd; |
1062 | |
2516 | |
1063 | for (fd = 0; fd < anfdmax; ++fd) |
2517 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1065 | if (!fd_valid (fd) && errno == EBADF) |
2519 | if (!fd_valid (fd) && errno == EBADF) |
1066 | fd_kill (EV_A_ fd); |
2520 | fd_kill (EV_A_ fd); |
1067 | } |
2521 | } |
1068 | |
2522 | |
1069 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2523 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1070 | static void noinline |
2524 | ecb_noinline ecb_cold |
|
|
2525 | static void |
1071 | fd_enomem (EV_P) |
2526 | fd_enomem (EV_P) |
1072 | { |
2527 | { |
1073 | int fd; |
2528 | int fd; |
1074 | |
2529 | |
1075 | for (fd = anfdmax; fd--; ) |
2530 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1079 | break; |
2534 | break; |
1080 | } |
2535 | } |
1081 | } |
2536 | } |
1082 | |
2537 | |
1083 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2538 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1084 | static void noinline |
2539 | ecb_noinline |
|
|
2540 | static void |
1085 | fd_rearm_all (EV_P) |
2541 | fd_rearm_all (EV_P) |
1086 | { |
2542 | { |
1087 | int fd; |
2543 | int fd; |
1088 | |
2544 | |
1089 | for (fd = 0; fd < anfdmax; ++fd) |
2545 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1142 | ev_tstamp minat; |
2598 | ev_tstamp minat; |
1143 | ANHE *minpos; |
2599 | ANHE *minpos; |
1144 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2600 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1145 | |
2601 | |
1146 | /* find minimum child */ |
2602 | /* find minimum child */ |
1147 | if (expect_true (pos + DHEAP - 1 < E)) |
2603 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1148 | { |
2604 | { |
1149 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2605 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1150 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2606 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1151 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2607 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1152 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2608 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1153 | } |
2609 | } |
1154 | else if (pos < E) |
2610 | else if (pos < E) |
1155 | { |
2611 | { |
1156 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2612 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1157 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2613 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1158 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2614 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1159 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2615 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1160 | } |
2616 | } |
1161 | else |
2617 | else |
1162 | break; |
2618 | break; |
1163 | |
2619 | |
1164 | if (ANHE_at (he) <= minat) |
2620 | if (ANHE_at (he) <= minat) |
… | |
… | |
1172 | |
2628 | |
1173 | heap [k] = he; |
2629 | heap [k] = he; |
1174 | ev_active (ANHE_w (he)) = k; |
2630 | ev_active (ANHE_w (he)) = k; |
1175 | } |
2631 | } |
1176 | |
2632 | |
1177 | #else /* 4HEAP */ |
2633 | #else /* not 4HEAP */ |
1178 | |
2634 | |
1179 | #define HEAP0 1 |
2635 | #define HEAP0 1 |
1180 | #define HPARENT(k) ((k) >> 1) |
2636 | #define HPARENT(k) ((k) >> 1) |
1181 | #define UPHEAP_DONE(p,k) (!(p)) |
2637 | #define UPHEAP_DONE(p,k) (!(p)) |
1182 | |
2638 | |
… | |
… | |
1254 | upheap (heap, i + HEAP0); |
2710 | upheap (heap, i + HEAP0); |
1255 | } |
2711 | } |
1256 | |
2712 | |
1257 | /*****************************************************************************/ |
2713 | /*****************************************************************************/ |
1258 | |
2714 | |
1259 | /* associate signal watchers to a signal signal */ |
2715 | /* associate signal watchers to a signal */ |
1260 | typedef struct |
2716 | typedef struct |
1261 | { |
2717 | { |
1262 | EV_ATOMIC_T pending; |
2718 | EV_ATOMIC_T pending; |
1263 | #if EV_MULTIPLICITY |
2719 | #if EV_MULTIPLICITY |
1264 | EV_P; |
2720 | EV_P; |
… | |
… | |
1270 | |
2726 | |
1271 | /*****************************************************************************/ |
2727 | /*****************************************************************************/ |
1272 | |
2728 | |
1273 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2729 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1274 | |
2730 | |
1275 | static void noinline |
2731 | ecb_noinline ecb_cold |
|
|
2732 | static void |
1276 | evpipe_init (EV_P) |
2733 | evpipe_init (EV_P) |
1277 | { |
2734 | { |
1278 | if (!ev_is_active (&pipe_w)) |
2735 | if (!ev_is_active (&pipe_w)) |
1279 | { |
2736 | { |
|
|
2737 | int fds [2]; |
|
|
2738 | |
1280 | # if EV_USE_EVENTFD |
2739 | # if EV_USE_EVENTFD |
|
|
2740 | fds [0] = -1; |
1281 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2741 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1282 | if (evfd < 0 && errno == EINVAL) |
2742 | if (fds [1] < 0 && errno == EINVAL) |
1283 | evfd = eventfd (0, 0); |
2743 | fds [1] = eventfd (0, 0); |
1284 | |
2744 | |
1285 | if (evfd >= 0) |
2745 | if (fds [1] < 0) |
|
|
2746 | # endif |
1286 | { |
2747 | { |
|
|
2748 | while (pipe (fds)) |
|
|
2749 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2750 | |
|
|
2751 | fd_intern (fds [0]); |
|
|
2752 | } |
|
|
2753 | |
1287 | evpipe [0] = -1; |
2754 | evpipe [0] = fds [0]; |
1288 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2755 | |
1289 | ev_io_set (&pipe_w, evfd, EV_READ); |
2756 | if (evpipe [1] < 0) |
|
|
2757 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2758 | else |
|
|
2759 | { |
|
|
2760 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2761 | /* so that evpipe_write can always rely on its value. */ |
|
|
2762 | /* this branch does not do anything sensible on windows, */ |
|
|
2763 | /* so must not be executed on windows */ |
|
|
2764 | |
|
|
2765 | dup2 (fds [1], evpipe [1]); |
|
|
2766 | close (fds [1]); |
|
|
2767 | } |
|
|
2768 | |
|
|
2769 | fd_intern (evpipe [1]); |
|
|
2770 | |
|
|
2771 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2772 | ev_io_start (EV_A_ &pipe_w); |
|
|
2773 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2774 | } |
|
|
2775 | } |
|
|
2776 | |
|
|
2777 | inline_speed void |
|
|
2778 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2779 | { |
|
|
2780 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2781 | |
|
|
2782 | if (ecb_expect_true (*flag)) |
|
|
2783 | return; |
|
|
2784 | |
|
|
2785 | *flag = 1; |
|
|
2786 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2787 | |
|
|
2788 | pipe_write_skipped = 1; |
|
|
2789 | |
|
|
2790 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2791 | |
|
|
2792 | if (pipe_write_wanted) |
|
|
2793 | { |
|
|
2794 | int old_errno; |
|
|
2795 | |
|
|
2796 | pipe_write_skipped = 0; |
|
|
2797 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2798 | |
|
|
2799 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2800 | |
|
|
2801 | #if EV_USE_EVENTFD |
|
|
2802 | if (evpipe [0] < 0) |
|
|
2803 | { |
|
|
2804 | uint64_t counter = 1; |
|
|
2805 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1290 | } |
2806 | } |
1291 | else |
2807 | else |
1292 | # endif |
2808 | #endif |
1293 | { |
2809 | { |
1294 | while (pipe (evpipe)) |
2810 | #ifdef _WIN32 |
1295 | ev_syserr ("(libev) error creating signal/async pipe"); |
2811 | WSABUF buf; |
1296 | |
2812 | DWORD sent; |
1297 | fd_intern (evpipe [0]); |
2813 | buf.buf = (char *)&buf; |
1298 | fd_intern (evpipe [1]); |
2814 | buf.len = 1; |
1299 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2815 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2816 | #else |
|
|
2817 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2818 | #endif |
1300 | } |
2819 | } |
1301 | |
|
|
1302 | ev_io_start (EV_A_ &pipe_w); |
|
|
1303 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1304 | } |
|
|
1305 | } |
|
|
1306 | |
|
|
1307 | inline_size void |
|
|
1308 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1309 | { |
|
|
1310 | if (!*flag) |
|
|
1311 | { |
|
|
1312 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1313 | char dummy; |
|
|
1314 | |
|
|
1315 | *flag = 1; |
|
|
1316 | |
|
|
1317 | #if EV_USE_EVENTFD |
|
|
1318 | if (evfd >= 0) |
|
|
1319 | { |
|
|
1320 | uint64_t counter = 1; |
|
|
1321 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1322 | } |
|
|
1323 | else |
|
|
1324 | #endif |
|
|
1325 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1326 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1327 | /* so when you think this write should be a send instead, please find out */ |
|
|
1328 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1329 | /* tell me. thank you. */ |
|
|
1330 | write (evpipe [1], &dummy, 1); |
|
|
1331 | |
2820 | |
1332 | errno = old_errno; |
2821 | errno = old_errno; |
1333 | } |
2822 | } |
1334 | } |
2823 | } |
1335 | |
2824 | |
… | |
… | |
1338 | static void |
2827 | static void |
1339 | pipecb (EV_P_ ev_io *iow, int revents) |
2828 | pipecb (EV_P_ ev_io *iow, int revents) |
1340 | { |
2829 | { |
1341 | int i; |
2830 | int i; |
1342 | |
2831 | |
|
|
2832 | if (revents & EV_READ) |
|
|
2833 | { |
1343 | #if EV_USE_EVENTFD |
2834 | #if EV_USE_EVENTFD |
1344 | if (evfd >= 0) |
2835 | if (evpipe [0] < 0) |
1345 | { |
2836 | { |
1346 | uint64_t counter; |
2837 | uint64_t counter; |
1347 | read (evfd, &counter, sizeof (uint64_t)); |
2838 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1348 | } |
2839 | } |
1349 | else |
2840 | else |
1350 | #endif |
2841 | #endif |
1351 | { |
2842 | { |
1352 | char dummy; |
2843 | char dummy[4]; |
1353 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2844 | #ifdef _WIN32 |
|
|
2845 | WSABUF buf; |
|
|
2846 | DWORD recvd; |
|
|
2847 | DWORD flags = 0; |
|
|
2848 | buf.buf = dummy; |
|
|
2849 | buf.len = sizeof (dummy); |
|
|
2850 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2851 | #else |
1354 | read (evpipe [0], &dummy, 1); |
2852 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2853 | #endif |
|
|
2854 | } |
1355 | } |
2855 | } |
|
|
2856 | |
|
|
2857 | pipe_write_skipped = 0; |
|
|
2858 | |
|
|
2859 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1356 | |
2860 | |
1357 | #if EV_SIGNAL_ENABLE |
2861 | #if EV_SIGNAL_ENABLE |
1358 | if (sig_pending) |
2862 | if (sig_pending) |
1359 | { |
2863 | { |
1360 | sig_pending = 0; |
2864 | sig_pending = 0; |
1361 | |
2865 | |
|
|
2866 | ECB_MEMORY_FENCE; |
|
|
2867 | |
1362 | for (i = EV_NSIG - 1; i--; ) |
2868 | for (i = EV_NSIG - 1; i--; ) |
1363 | if (expect_false (signals [i].pending)) |
2869 | if (ecb_expect_false (signals [i].pending)) |
1364 | ev_feed_signal_event (EV_A_ i + 1); |
2870 | ev_feed_signal_event (EV_A_ i + 1); |
1365 | } |
2871 | } |
1366 | #endif |
2872 | #endif |
1367 | |
2873 | |
1368 | #if EV_ASYNC_ENABLE |
2874 | #if EV_ASYNC_ENABLE |
1369 | if (async_pending) |
2875 | if (async_pending) |
1370 | { |
2876 | { |
1371 | async_pending = 0; |
2877 | async_pending = 0; |
|
|
2878 | |
|
|
2879 | ECB_MEMORY_FENCE; |
1372 | |
2880 | |
1373 | for (i = asynccnt; i--; ) |
2881 | for (i = asynccnt; i--; ) |
1374 | if (asyncs [i]->sent) |
2882 | if (asyncs [i]->sent) |
1375 | { |
2883 | { |
1376 | asyncs [i]->sent = 0; |
2884 | asyncs [i]->sent = 0; |
|
|
2885 | ECB_MEMORY_FENCE_RELEASE; |
1377 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2886 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1378 | } |
2887 | } |
1379 | } |
2888 | } |
1380 | #endif |
2889 | #endif |
1381 | } |
2890 | } |
1382 | |
2891 | |
1383 | /*****************************************************************************/ |
2892 | /*****************************************************************************/ |
1384 | |
2893 | |
1385 | void |
2894 | void |
1386 | ev_feed_signal (int signum) |
2895 | ev_feed_signal (int signum) EV_NOEXCEPT |
1387 | { |
2896 | { |
1388 | #if EV_MULTIPLICITY |
2897 | #if EV_MULTIPLICITY |
|
|
2898 | EV_P; |
|
|
2899 | ECB_MEMORY_FENCE_ACQUIRE; |
1389 | EV_P = signals [signum - 1].loop; |
2900 | EV_A = signals [signum - 1].loop; |
1390 | |
2901 | |
1391 | if (!EV_A) |
2902 | if (!EV_A) |
1392 | return; |
2903 | return; |
1393 | #endif |
2904 | #endif |
1394 | |
2905 | |
… | |
… | |
1404 | #endif |
2915 | #endif |
1405 | |
2916 | |
1406 | ev_feed_signal (signum); |
2917 | ev_feed_signal (signum); |
1407 | } |
2918 | } |
1408 | |
2919 | |
1409 | void noinline |
2920 | ecb_noinline |
|
|
2921 | void |
1410 | ev_feed_signal_event (EV_P_ int signum) |
2922 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1411 | { |
2923 | { |
1412 | WL w; |
2924 | WL w; |
1413 | |
2925 | |
1414 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2926 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1415 | return; |
2927 | return; |
1416 | |
2928 | |
1417 | --signum; |
2929 | --signum; |
1418 | |
2930 | |
1419 | #if EV_MULTIPLICITY |
2931 | #if EV_MULTIPLICITY |
1420 | /* it is permissible to try to feed a signal to the wrong loop */ |
2932 | /* it is permissible to try to feed a signal to the wrong loop */ |
1421 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2933 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1422 | |
2934 | |
1423 | if (expect_false (signals [signum].loop != EV_A)) |
2935 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1424 | return; |
2936 | return; |
1425 | #endif |
2937 | #endif |
1426 | |
2938 | |
1427 | signals [signum].pending = 0; |
2939 | signals [signum].pending = 0; |
|
|
2940 | ECB_MEMORY_FENCE_RELEASE; |
1428 | |
2941 | |
1429 | for (w = signals [signum].head; w; w = w->next) |
2942 | for (w = signals [signum].head; w; w = w->next) |
1430 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2943 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1431 | } |
2944 | } |
1432 | |
2945 | |
… | |
… | |
1511 | |
3024 | |
1512 | #endif |
3025 | #endif |
1513 | |
3026 | |
1514 | /*****************************************************************************/ |
3027 | /*****************************************************************************/ |
1515 | |
3028 | |
|
|
3029 | #if EV_USE_TIMERFD |
|
|
3030 | |
|
|
3031 | static void periodics_reschedule (EV_P); |
|
|
3032 | |
|
|
3033 | static void |
|
|
3034 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
3035 | { |
|
|
3036 | struct itimerspec its = { 0 }; |
|
|
3037 | |
|
|
3038 | its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2; |
|
|
3039 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
3040 | |
|
|
3041 | ev_rt_now = ev_time (); |
|
|
3042 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
3043 | /* but maybe in the future we want the full treatment. */ |
|
|
3044 | /* |
|
|
3045 | now_floor = EV_TS_CONST (0.); |
|
|
3046 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
3047 | */ |
|
|
3048 | #if EV_PERIODIC_ENABLE |
|
|
3049 | periodics_reschedule (EV_A); |
|
|
3050 | #endif |
|
|
3051 | } |
|
|
3052 | |
|
|
3053 | ecb_noinline ecb_cold |
|
|
3054 | static void |
|
|
3055 | evtimerfd_init (EV_P) |
|
|
3056 | { |
|
|
3057 | if (!ev_is_active (&timerfd_w)) |
|
|
3058 | { |
|
|
3059 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
3060 | |
|
|
3061 | if (timerfd >= 0) |
|
|
3062 | { |
|
|
3063 | fd_intern (timerfd); /* just to be sure */ |
|
|
3064 | |
|
|
3065 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
3066 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
3067 | ev_io_start (EV_A_ &timerfd_w); |
|
|
3068 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
3069 | |
|
|
3070 | /* (re-) arm timer */ |
|
|
3071 | timerfdcb (EV_A_ 0, 0); |
|
|
3072 | } |
|
|
3073 | } |
|
|
3074 | } |
|
|
3075 | |
|
|
3076 | #endif |
|
|
3077 | |
|
|
3078 | /*****************************************************************************/ |
|
|
3079 | |
1516 | #if EV_USE_IOCP |
3080 | #if EV_USE_IOCP |
1517 | # include "ev_iocp.c" |
3081 | # include "ev_iocp.c" |
1518 | #endif |
3082 | #endif |
1519 | #if EV_USE_PORT |
3083 | #if EV_USE_PORT |
1520 | # include "ev_port.c" |
3084 | # include "ev_port.c" |
… | |
… | |
1523 | # include "ev_kqueue.c" |
3087 | # include "ev_kqueue.c" |
1524 | #endif |
3088 | #endif |
1525 | #if EV_USE_EPOLL |
3089 | #if EV_USE_EPOLL |
1526 | # include "ev_epoll.c" |
3090 | # include "ev_epoll.c" |
1527 | #endif |
3091 | #endif |
|
|
3092 | #if EV_USE_LINUXAIO |
|
|
3093 | # include "ev_linuxaio.c" |
|
|
3094 | #endif |
|
|
3095 | #if EV_USE_IOURING |
|
|
3096 | # include "ev_iouring.c" |
|
|
3097 | #endif |
1528 | #if EV_USE_POLL |
3098 | #if EV_USE_POLL |
1529 | # include "ev_poll.c" |
3099 | # include "ev_poll.c" |
1530 | #endif |
3100 | #endif |
1531 | #if EV_USE_SELECT |
3101 | #if EV_USE_SELECT |
1532 | # include "ev_select.c" |
3102 | # include "ev_select.c" |
1533 | #endif |
3103 | #endif |
1534 | |
3104 | |
1535 | int |
3105 | ecb_cold int |
1536 | ev_version_major (void) |
3106 | ev_version_major (void) EV_NOEXCEPT |
1537 | { |
3107 | { |
1538 | return EV_VERSION_MAJOR; |
3108 | return EV_VERSION_MAJOR; |
1539 | } |
3109 | } |
1540 | |
3110 | |
1541 | int |
3111 | ecb_cold int |
1542 | ev_version_minor (void) |
3112 | ev_version_minor (void) EV_NOEXCEPT |
1543 | { |
3113 | { |
1544 | return EV_VERSION_MINOR; |
3114 | return EV_VERSION_MINOR; |
1545 | } |
3115 | } |
1546 | |
3116 | |
1547 | /* return true if we are running with elevated privileges and should ignore env variables */ |
3117 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1548 | int inline_size |
3118 | inline_size ecb_cold int |
1549 | enable_secure (void) |
3119 | enable_secure (void) |
1550 | { |
3120 | { |
1551 | #ifdef _WIN32 |
3121 | #ifdef _WIN32 |
1552 | return 0; |
3122 | return 0; |
1553 | #else |
3123 | #else |
1554 | return getuid () != geteuid () |
3124 | return getuid () != geteuid () |
1555 | || getgid () != getegid (); |
3125 | || getgid () != getegid (); |
1556 | #endif |
3126 | #endif |
1557 | } |
3127 | } |
1558 | |
3128 | |
|
|
3129 | ecb_cold |
1559 | unsigned int |
3130 | unsigned int |
1560 | ev_supported_backends (void) |
3131 | ev_supported_backends (void) EV_NOEXCEPT |
1561 | { |
3132 | { |
1562 | unsigned int flags = 0; |
3133 | unsigned int flags = 0; |
1563 | |
3134 | |
1564 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3135 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1565 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3136 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1566 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3137 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
1567 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3138 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
1568 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3139 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
1569 | |
3140 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3141 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3142 | |
1570 | return flags; |
3143 | return flags; |
1571 | } |
3144 | } |
1572 | |
3145 | |
|
|
3146 | ecb_cold |
1573 | unsigned int |
3147 | unsigned int |
1574 | ev_recommended_backends (void) |
3148 | ev_recommended_backends (void) EV_NOEXCEPT |
1575 | { |
3149 | { |
1576 | unsigned int flags = ev_supported_backends (); |
3150 | unsigned int flags = ev_supported_backends (); |
1577 | |
3151 | |
1578 | #ifndef __NetBSD__ |
3152 | #ifndef __NetBSD__ |
1579 | /* kqueue is borked on everything but netbsd apparently */ |
3153 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1587 | #endif |
3161 | #endif |
1588 | #ifdef __FreeBSD__ |
3162 | #ifdef __FreeBSD__ |
1589 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3163 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1590 | #endif |
3164 | #endif |
1591 | |
3165 | |
|
|
3166 | /* TODO: linuxaio is very experimental */ |
|
|
3167 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3168 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3169 | #endif |
|
|
3170 | /* TODO: iouring is super experimental */ |
|
|
3171 | #if !EV_RECOMMEND_IOURING |
|
|
3172 | flags &= ~EVBACKEND_IOURING; |
|
|
3173 | #endif |
|
|
3174 | |
1592 | return flags; |
3175 | return flags; |
1593 | } |
3176 | } |
1594 | |
3177 | |
|
|
3178 | ecb_cold |
1595 | unsigned int |
3179 | unsigned int |
1596 | ev_embeddable_backends (void) |
3180 | ev_embeddable_backends (void) EV_NOEXCEPT |
1597 | { |
3181 | { |
1598 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3182 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
1599 | |
3183 | |
1600 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3184 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1601 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3185 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1602 | flags &= ~EVBACKEND_EPOLL; |
3186 | flags &= ~EVBACKEND_EPOLL; |
1603 | |
3187 | |
|
|
3188 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3189 | |
1604 | return flags; |
3190 | return flags; |
1605 | } |
3191 | } |
1606 | |
3192 | |
1607 | unsigned int |
3193 | unsigned int |
1608 | ev_backend (EV_P) |
3194 | ev_backend (EV_P) EV_NOEXCEPT |
1609 | { |
3195 | { |
1610 | return backend; |
3196 | return backend; |
1611 | } |
3197 | } |
1612 | |
3198 | |
1613 | #if EV_FEATURE_API |
3199 | #if EV_FEATURE_API |
1614 | unsigned int |
3200 | unsigned int |
1615 | ev_iteration (EV_P) |
3201 | ev_iteration (EV_P) EV_NOEXCEPT |
1616 | { |
3202 | { |
1617 | return loop_count; |
3203 | return loop_count; |
1618 | } |
3204 | } |
1619 | |
3205 | |
1620 | unsigned int |
3206 | unsigned int |
1621 | ev_depth (EV_P) |
3207 | ev_depth (EV_P) EV_NOEXCEPT |
1622 | { |
3208 | { |
1623 | return loop_depth; |
3209 | return loop_depth; |
1624 | } |
3210 | } |
1625 | |
3211 | |
1626 | void |
3212 | void |
1627 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3213 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1628 | { |
3214 | { |
1629 | io_blocktime = interval; |
3215 | io_blocktime = interval; |
1630 | } |
3216 | } |
1631 | |
3217 | |
1632 | void |
3218 | void |
1633 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3219 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1634 | { |
3220 | { |
1635 | timeout_blocktime = interval; |
3221 | timeout_blocktime = interval; |
1636 | } |
3222 | } |
1637 | |
3223 | |
1638 | void |
3224 | void |
1639 | ev_set_userdata (EV_P_ void *data) |
3225 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1640 | { |
3226 | { |
1641 | userdata = data; |
3227 | userdata = data; |
1642 | } |
3228 | } |
1643 | |
3229 | |
1644 | void * |
3230 | void * |
1645 | ev_userdata (EV_P) |
3231 | ev_userdata (EV_P) EV_NOEXCEPT |
1646 | { |
3232 | { |
1647 | return userdata; |
3233 | return userdata; |
1648 | } |
3234 | } |
1649 | |
3235 | |
|
|
3236 | void |
1650 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3237 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1651 | { |
3238 | { |
1652 | invoke_cb = invoke_pending_cb; |
3239 | invoke_cb = invoke_pending_cb; |
1653 | } |
3240 | } |
1654 | |
3241 | |
|
|
3242 | void |
1655 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3243 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1656 | { |
3244 | { |
1657 | release_cb = release; |
3245 | release_cb = release; |
1658 | acquire_cb = acquire; |
3246 | acquire_cb = acquire; |
1659 | } |
3247 | } |
1660 | #endif |
3248 | #endif |
1661 | |
3249 | |
1662 | /* initialise a loop structure, must be zero-initialised */ |
3250 | /* initialise a loop structure, must be zero-initialised */ |
1663 | static void noinline |
3251 | ecb_noinline ecb_cold |
|
|
3252 | static void |
1664 | loop_init (EV_P_ unsigned int flags) |
3253 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1665 | { |
3254 | { |
1666 | if (!backend) |
3255 | if (!backend) |
1667 | { |
3256 | { |
1668 | origflags = flags; |
3257 | origflags = flags; |
1669 | |
3258 | |
… | |
… | |
1696 | if (!(flags & EVFLAG_NOENV) |
3285 | if (!(flags & EVFLAG_NOENV) |
1697 | && !enable_secure () |
3286 | && !enable_secure () |
1698 | && getenv ("LIBEV_FLAGS")) |
3287 | && getenv ("LIBEV_FLAGS")) |
1699 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3288 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1700 | |
3289 | |
1701 | ev_rt_now = ev_time (); |
3290 | ev_rt_now = ev_time (); |
1702 | mn_now = get_clock (); |
3291 | mn_now = get_clock (); |
1703 | now_floor = mn_now; |
3292 | now_floor = mn_now; |
1704 | rtmn_diff = ev_rt_now - mn_now; |
3293 | rtmn_diff = ev_rt_now - mn_now; |
1705 | #if EV_FEATURE_API |
3294 | #if EV_FEATURE_API |
1706 | invoke_cb = ev_invoke_pending; |
3295 | invoke_cb = ev_invoke_pending; |
1707 | #endif |
3296 | #endif |
1708 | |
3297 | |
1709 | io_blocktime = 0.; |
3298 | io_blocktime = 0.; |
1710 | timeout_blocktime = 0.; |
3299 | timeout_blocktime = 0.; |
1711 | backend = 0; |
3300 | backend = 0; |
1712 | backend_fd = -1; |
3301 | backend_fd = -1; |
1713 | sig_pending = 0; |
3302 | sig_pending = 0; |
1714 | #if EV_ASYNC_ENABLE |
3303 | #if EV_ASYNC_ENABLE |
1715 | async_pending = 0; |
3304 | async_pending = 0; |
1716 | #endif |
3305 | #endif |
|
|
3306 | pipe_write_skipped = 0; |
|
|
3307 | pipe_write_wanted = 0; |
|
|
3308 | evpipe [0] = -1; |
|
|
3309 | evpipe [1] = -1; |
1717 | #if EV_USE_INOTIFY |
3310 | #if EV_USE_INOTIFY |
1718 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3311 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1719 | #endif |
3312 | #endif |
1720 | #if EV_USE_SIGNALFD |
3313 | #if EV_USE_SIGNALFD |
1721 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3314 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
3315 | #endif |
|
|
3316 | #if EV_USE_TIMERFD |
|
|
3317 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
1722 | #endif |
3318 | #endif |
1723 | |
3319 | |
1724 | if (!(flags & EVBACKEND_MASK)) |
3320 | if (!(flags & EVBACKEND_MASK)) |
1725 | flags |= ev_recommended_backends (); |
3321 | flags |= ev_recommended_backends (); |
1726 | |
3322 | |
1727 | #if EV_USE_IOCP |
3323 | #if EV_USE_IOCP |
1728 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3324 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
1729 | #endif |
3325 | #endif |
1730 | #if EV_USE_PORT |
3326 | #if EV_USE_PORT |
1731 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3327 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1732 | #endif |
3328 | #endif |
1733 | #if EV_USE_KQUEUE |
3329 | #if EV_USE_KQUEUE |
1734 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3330 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3331 | #endif |
|
|
3332 | #if EV_USE_IOURING |
|
|
3333 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3334 | #endif |
|
|
3335 | #if EV_USE_LINUXAIO |
|
|
3336 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1735 | #endif |
3337 | #endif |
1736 | #if EV_USE_EPOLL |
3338 | #if EV_USE_EPOLL |
1737 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3339 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1738 | #endif |
3340 | #endif |
1739 | #if EV_USE_POLL |
3341 | #if EV_USE_POLL |
1740 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3342 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1741 | #endif |
3343 | #endif |
1742 | #if EV_USE_SELECT |
3344 | #if EV_USE_SELECT |
1743 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3345 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1744 | #endif |
3346 | #endif |
1745 | |
3347 | |
1746 | ev_prepare_init (&pending_w, pendingcb); |
3348 | ev_prepare_init (&pending_w, pendingcb); |
1747 | |
3349 | |
1748 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3350 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
1751 | #endif |
3353 | #endif |
1752 | } |
3354 | } |
1753 | } |
3355 | } |
1754 | |
3356 | |
1755 | /* free up a loop structure */ |
3357 | /* free up a loop structure */ |
|
|
3358 | ecb_cold |
1756 | void |
3359 | void |
1757 | ev_loop_destroy (EV_P) |
3360 | ev_loop_destroy (EV_P) |
1758 | { |
3361 | { |
1759 | int i; |
3362 | int i; |
1760 | |
3363 | |
… | |
… | |
1764 | return; |
3367 | return; |
1765 | #endif |
3368 | #endif |
1766 | |
3369 | |
1767 | #if EV_CLEANUP_ENABLE |
3370 | #if EV_CLEANUP_ENABLE |
1768 | /* queue cleanup watchers (and execute them) */ |
3371 | /* queue cleanup watchers (and execute them) */ |
1769 | if (expect_false (cleanupcnt)) |
3372 | if (ecb_expect_false (cleanupcnt)) |
1770 | { |
3373 | { |
1771 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3374 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
1772 | EV_INVOKE_PENDING; |
3375 | EV_INVOKE_PENDING; |
1773 | } |
3376 | } |
1774 | #endif |
3377 | #endif |
1775 | |
3378 | |
1776 | #if EV_CHILD_ENABLE |
3379 | #if EV_CHILD_ENABLE |
1777 | if (ev_is_active (&childev)) |
3380 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1778 | { |
3381 | { |
1779 | ev_ref (EV_A); /* child watcher */ |
3382 | ev_ref (EV_A); /* child watcher */ |
1780 | ev_signal_stop (EV_A_ &childev); |
3383 | ev_signal_stop (EV_A_ &childev); |
1781 | } |
3384 | } |
1782 | #endif |
3385 | #endif |
… | |
… | |
1784 | if (ev_is_active (&pipe_w)) |
3387 | if (ev_is_active (&pipe_w)) |
1785 | { |
3388 | { |
1786 | /*ev_ref (EV_A);*/ |
3389 | /*ev_ref (EV_A);*/ |
1787 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3390 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1788 | |
3391 | |
1789 | #if EV_USE_EVENTFD |
|
|
1790 | if (evfd >= 0) |
|
|
1791 | close (evfd); |
|
|
1792 | #endif |
|
|
1793 | |
|
|
1794 | if (evpipe [0] >= 0) |
|
|
1795 | { |
|
|
1796 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3392 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1797 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3393 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1798 | } |
|
|
1799 | } |
3394 | } |
1800 | |
3395 | |
1801 | #if EV_USE_SIGNALFD |
3396 | #if EV_USE_SIGNALFD |
1802 | if (ev_is_active (&sigfd_w)) |
3397 | if (ev_is_active (&sigfd_w)) |
1803 | close (sigfd); |
3398 | close (sigfd); |
1804 | #endif |
3399 | #endif |
1805 | |
3400 | |
|
|
3401 | #if EV_USE_TIMERFD |
|
|
3402 | if (ev_is_active (&timerfd_w)) |
|
|
3403 | close (timerfd); |
|
|
3404 | #endif |
|
|
3405 | |
1806 | #if EV_USE_INOTIFY |
3406 | #if EV_USE_INOTIFY |
1807 | if (fs_fd >= 0) |
3407 | if (fs_fd >= 0) |
1808 | close (fs_fd); |
3408 | close (fs_fd); |
1809 | #endif |
3409 | #endif |
1810 | |
3410 | |
1811 | if (backend_fd >= 0) |
3411 | if (backend_fd >= 0) |
1812 | close (backend_fd); |
3412 | close (backend_fd); |
1813 | |
3413 | |
1814 | #if EV_USE_IOCP |
3414 | #if EV_USE_IOCP |
1815 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3415 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
1816 | #endif |
3416 | #endif |
1817 | #if EV_USE_PORT |
3417 | #if EV_USE_PORT |
1818 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3418 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1819 | #endif |
3419 | #endif |
1820 | #if EV_USE_KQUEUE |
3420 | #if EV_USE_KQUEUE |
1821 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3421 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3422 | #endif |
|
|
3423 | #if EV_USE_IOURING |
|
|
3424 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3425 | #endif |
|
|
3426 | #if EV_USE_LINUXAIO |
|
|
3427 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1822 | #endif |
3428 | #endif |
1823 | #if EV_USE_EPOLL |
3429 | #if EV_USE_EPOLL |
1824 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3430 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1825 | #endif |
3431 | #endif |
1826 | #if EV_USE_POLL |
3432 | #if EV_USE_POLL |
1827 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3433 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1828 | #endif |
3434 | #endif |
1829 | #if EV_USE_SELECT |
3435 | #if EV_USE_SELECT |
1830 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3436 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1831 | #endif |
3437 | #endif |
1832 | |
3438 | |
1833 | for (i = NUMPRI; i--; ) |
3439 | for (i = NUMPRI; i--; ) |
1834 | { |
3440 | { |
1835 | array_free (pending, [i]); |
3441 | array_free (pending, [i]); |
… | |
… | |
1877 | |
3483 | |
1878 | inline_size void |
3484 | inline_size void |
1879 | loop_fork (EV_P) |
3485 | loop_fork (EV_P) |
1880 | { |
3486 | { |
1881 | #if EV_USE_PORT |
3487 | #if EV_USE_PORT |
1882 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3488 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1883 | #endif |
3489 | #endif |
1884 | #if EV_USE_KQUEUE |
3490 | #if EV_USE_KQUEUE |
1885 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3491 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3492 | #endif |
|
|
3493 | #if EV_USE_IOURING |
|
|
3494 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3495 | #endif |
|
|
3496 | #if EV_USE_LINUXAIO |
|
|
3497 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1886 | #endif |
3498 | #endif |
1887 | #if EV_USE_EPOLL |
3499 | #if EV_USE_EPOLL |
1888 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3500 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1889 | #endif |
3501 | #endif |
1890 | #if EV_USE_INOTIFY |
3502 | #if EV_USE_INOTIFY |
1891 | infy_fork (EV_A); |
3503 | infy_fork (EV_A); |
1892 | #endif |
3504 | #endif |
1893 | |
3505 | |
|
|
3506 | if (postfork != 2) |
|
|
3507 | { |
|
|
3508 | #if EV_USE_SIGNALFD |
|
|
3509 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3510 | #endif |
|
|
3511 | |
|
|
3512 | #if EV_USE_TIMERFD |
|
|
3513 | if (ev_is_active (&timerfd_w)) |
|
|
3514 | { |
|
|
3515 | ev_ref (EV_A); |
|
|
3516 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3517 | |
|
|
3518 | close (timerfd); |
|
|
3519 | timerfd = -2; |
|
|
3520 | |
|
|
3521 | evtimerfd_init (EV_A); |
|
|
3522 | /* reschedule periodics, in case we missed something */ |
|
|
3523 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3524 | } |
|
|
3525 | #endif |
|
|
3526 | |
|
|
3527 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1894 | if (ev_is_active (&pipe_w)) |
3528 | if (ev_is_active (&pipe_w)) |
1895 | { |
3529 | { |
1896 | /* this "locks" the handlers against writing to the pipe */ |
3530 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1897 | /* while we modify the fd vars */ |
3531 | |
1898 | sig_pending = 1; |
|
|
1899 | #if EV_ASYNC_ENABLE |
|
|
1900 | async_pending = 1; |
|
|
1901 | #endif |
|
|
1902 | |
|
|
1903 | ev_ref (EV_A); |
3532 | ev_ref (EV_A); |
1904 | ev_io_stop (EV_A_ &pipe_w); |
3533 | ev_io_stop (EV_A_ &pipe_w); |
1905 | |
3534 | |
1906 | #if EV_USE_EVENTFD |
|
|
1907 | if (evfd >= 0) |
|
|
1908 | close (evfd); |
|
|
1909 | #endif |
|
|
1910 | |
|
|
1911 | if (evpipe [0] >= 0) |
3535 | if (evpipe [0] >= 0) |
1912 | { |
|
|
1913 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3536 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1914 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3537 | |
|
|
3538 | evpipe_init (EV_A); |
|
|
3539 | /* iterate over everything, in case we missed something before */ |
|
|
3540 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1915 | } |
3541 | } |
1916 | |
3542 | #endif |
1917 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1918 | evpipe_init (EV_A); |
|
|
1919 | /* now iterate over everything, in case we missed something */ |
|
|
1920 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1921 | #endif |
|
|
1922 | } |
3543 | } |
1923 | |
3544 | |
1924 | postfork = 0; |
3545 | postfork = 0; |
1925 | } |
3546 | } |
1926 | |
3547 | |
1927 | #if EV_MULTIPLICITY |
3548 | #if EV_MULTIPLICITY |
1928 | |
3549 | |
|
|
3550 | ecb_cold |
1929 | struct ev_loop * |
3551 | struct ev_loop * |
1930 | ev_loop_new (unsigned int flags) |
3552 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1931 | { |
3553 | { |
1932 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3554 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1933 | |
3555 | |
1934 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3556 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1935 | loop_init (EV_A_ flags); |
3557 | loop_init (EV_A_ flags); |
… | |
… | |
1942 | } |
3564 | } |
1943 | |
3565 | |
1944 | #endif /* multiplicity */ |
3566 | #endif /* multiplicity */ |
1945 | |
3567 | |
1946 | #if EV_VERIFY |
3568 | #if EV_VERIFY |
1947 | static void noinline |
3569 | ecb_noinline ecb_cold |
|
|
3570 | static void |
1948 | verify_watcher (EV_P_ W w) |
3571 | verify_watcher (EV_P_ W w) |
1949 | { |
3572 | { |
1950 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3573 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1951 | |
3574 | |
1952 | if (w->pending) |
3575 | if (w->pending) |
1953 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3576 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1954 | } |
3577 | } |
1955 | |
3578 | |
1956 | static void noinline |
3579 | ecb_noinline ecb_cold |
|
|
3580 | static void |
1957 | verify_heap (EV_P_ ANHE *heap, int N) |
3581 | verify_heap (EV_P_ ANHE *heap, int N) |
1958 | { |
3582 | { |
1959 | int i; |
3583 | int i; |
1960 | |
3584 | |
1961 | for (i = HEAP0; i < N + HEAP0; ++i) |
3585 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1966 | |
3590 | |
1967 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3591 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1968 | } |
3592 | } |
1969 | } |
3593 | } |
1970 | |
3594 | |
1971 | static void noinline |
3595 | ecb_noinline ecb_cold |
|
|
3596 | static void |
1972 | array_verify (EV_P_ W *ws, int cnt) |
3597 | array_verify (EV_P_ W *ws, int cnt) |
1973 | { |
3598 | { |
1974 | while (cnt--) |
3599 | while (cnt--) |
1975 | { |
3600 | { |
1976 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1978 | } |
3603 | } |
1979 | } |
3604 | } |
1980 | #endif |
3605 | #endif |
1981 | |
3606 | |
1982 | #if EV_FEATURE_API |
3607 | #if EV_FEATURE_API |
1983 | void |
3608 | void ecb_cold |
1984 | ev_verify (EV_P) |
3609 | ev_verify (EV_P) EV_NOEXCEPT |
1985 | { |
3610 | { |
1986 | #if EV_VERIFY |
3611 | #if EV_VERIFY |
1987 | int i; |
3612 | int i; |
1988 | WL w; |
3613 | WL w, w2; |
1989 | |
3614 | |
1990 | assert (activecnt >= -1); |
3615 | assert (activecnt >= -1); |
1991 | |
3616 | |
1992 | assert (fdchangemax >= fdchangecnt); |
3617 | assert (fdchangemax >= fdchangecnt); |
1993 | for (i = 0; i < fdchangecnt; ++i) |
3618 | for (i = 0; i < fdchangecnt; ++i) |
1994 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3619 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1995 | |
3620 | |
1996 | assert (anfdmax >= 0); |
3621 | assert (anfdmax >= 0); |
1997 | for (i = 0; i < anfdmax; ++i) |
3622 | for (i = 0; i < anfdmax; ++i) |
|
|
3623 | { |
|
|
3624 | int j = 0; |
|
|
3625 | |
1998 | for (w = anfds [i].head; w; w = w->next) |
3626 | for (w = w2 = anfds [i].head; w; w = w->next) |
1999 | { |
3627 | { |
2000 | verify_watcher (EV_A_ (W)w); |
3628 | verify_watcher (EV_A_ (W)w); |
|
|
3629 | |
|
|
3630 | if (j++ & 1) |
|
|
3631 | { |
|
|
3632 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3633 | w2 = w2->next; |
|
|
3634 | } |
|
|
3635 | |
2001 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3636 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2002 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3637 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2003 | } |
3638 | } |
|
|
3639 | } |
2004 | |
3640 | |
2005 | assert (timermax >= timercnt); |
3641 | assert (timermax >= timercnt); |
2006 | verify_heap (EV_A_ timers, timercnt); |
3642 | verify_heap (EV_A_ timers, timercnt); |
2007 | |
3643 | |
2008 | #if EV_PERIODIC_ENABLE |
3644 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2054 | #endif |
3690 | #endif |
2055 | } |
3691 | } |
2056 | #endif |
3692 | #endif |
2057 | |
3693 | |
2058 | #if EV_MULTIPLICITY |
3694 | #if EV_MULTIPLICITY |
|
|
3695 | ecb_cold |
2059 | struct ev_loop * |
3696 | struct ev_loop * |
2060 | #else |
3697 | #else |
2061 | int |
3698 | int |
2062 | #endif |
3699 | #endif |
2063 | ev_default_loop (unsigned int flags) |
3700 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2064 | { |
3701 | { |
2065 | if (!ev_default_loop_ptr) |
3702 | if (!ev_default_loop_ptr) |
2066 | { |
3703 | { |
2067 | #if EV_MULTIPLICITY |
3704 | #if EV_MULTIPLICITY |
2068 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3705 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2087 | |
3724 | |
2088 | return ev_default_loop_ptr; |
3725 | return ev_default_loop_ptr; |
2089 | } |
3726 | } |
2090 | |
3727 | |
2091 | void |
3728 | void |
2092 | ev_loop_fork (EV_P) |
3729 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2093 | { |
3730 | { |
2094 | postfork = 1; /* must be in line with ev_default_fork */ |
3731 | postfork = 1; |
2095 | } |
3732 | } |
2096 | |
3733 | |
2097 | /*****************************************************************************/ |
3734 | /*****************************************************************************/ |
2098 | |
3735 | |
2099 | void |
3736 | void |
… | |
… | |
2101 | { |
3738 | { |
2102 | EV_CB_INVOKE ((W)w, revents); |
3739 | EV_CB_INVOKE ((W)w, revents); |
2103 | } |
3740 | } |
2104 | |
3741 | |
2105 | unsigned int |
3742 | unsigned int |
2106 | ev_pending_count (EV_P) |
3743 | ev_pending_count (EV_P) EV_NOEXCEPT |
2107 | { |
3744 | { |
2108 | int pri; |
3745 | int pri; |
2109 | unsigned int count = 0; |
3746 | unsigned int count = 0; |
2110 | |
3747 | |
2111 | for (pri = NUMPRI; pri--; ) |
3748 | for (pri = NUMPRI; pri--; ) |
2112 | count += pendingcnt [pri]; |
3749 | count += pendingcnt [pri]; |
2113 | |
3750 | |
2114 | return count; |
3751 | return count; |
2115 | } |
3752 | } |
2116 | |
3753 | |
2117 | void noinline |
3754 | ecb_noinline |
|
|
3755 | void |
2118 | ev_invoke_pending (EV_P) |
3756 | ev_invoke_pending (EV_P) |
2119 | { |
3757 | { |
2120 | int pri; |
3758 | pendingpri = NUMPRI; |
2121 | |
3759 | |
2122 | for (pri = NUMPRI; pri--; ) |
3760 | do |
|
|
3761 | { |
|
|
3762 | --pendingpri; |
|
|
3763 | |
|
|
3764 | /* pendingpri possibly gets modified in the inner loop */ |
2123 | while (pendingcnt [pri]) |
3765 | while (pendingcnt [pendingpri]) |
2124 | { |
3766 | { |
2125 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3767 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2126 | |
3768 | |
2127 | p->w->pending = 0; |
3769 | p->w->pending = 0; |
2128 | EV_CB_INVOKE (p->w, p->events); |
3770 | EV_CB_INVOKE (p->w, p->events); |
2129 | EV_FREQUENT_CHECK; |
3771 | EV_FREQUENT_CHECK; |
2130 | } |
3772 | } |
|
|
3773 | } |
|
|
3774 | while (pendingpri); |
2131 | } |
3775 | } |
2132 | |
3776 | |
2133 | #if EV_IDLE_ENABLE |
3777 | #if EV_IDLE_ENABLE |
2134 | /* make idle watchers pending. this handles the "call-idle */ |
3778 | /* make idle watchers pending. this handles the "call-idle */ |
2135 | /* only when higher priorities are idle" logic */ |
3779 | /* only when higher priorities are idle" logic */ |
2136 | inline_size void |
3780 | inline_size void |
2137 | idle_reify (EV_P) |
3781 | idle_reify (EV_P) |
2138 | { |
3782 | { |
2139 | if (expect_false (idleall)) |
3783 | if (ecb_expect_false (idleall)) |
2140 | { |
3784 | { |
2141 | int pri; |
3785 | int pri; |
2142 | |
3786 | |
2143 | for (pri = NUMPRI; pri--; ) |
3787 | for (pri = NUMPRI; pri--; ) |
2144 | { |
3788 | { |
… | |
… | |
2174 | { |
3818 | { |
2175 | ev_at (w) += w->repeat; |
3819 | ev_at (w) += w->repeat; |
2176 | if (ev_at (w) < mn_now) |
3820 | if (ev_at (w) < mn_now) |
2177 | ev_at (w) = mn_now; |
3821 | ev_at (w) = mn_now; |
2178 | |
3822 | |
2179 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3823 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2180 | |
3824 | |
2181 | ANHE_at_cache (timers [HEAP0]); |
3825 | ANHE_at_cache (timers [HEAP0]); |
2182 | downheap (timers, timercnt, HEAP0); |
3826 | downheap (timers, timercnt, HEAP0); |
2183 | } |
3827 | } |
2184 | else |
3828 | else |
… | |
… | |
2193 | } |
3837 | } |
2194 | } |
3838 | } |
2195 | |
3839 | |
2196 | #if EV_PERIODIC_ENABLE |
3840 | #if EV_PERIODIC_ENABLE |
2197 | |
3841 | |
2198 | inline_speed |
3842 | ecb_noinline |
|
|
3843 | static void |
2199 | periodic_recalc (EV_P_ ev_periodic *w) |
3844 | periodic_recalc (EV_P_ ev_periodic *w) |
2200 | { |
3845 | { |
2201 | /* TODO: use slow but potentially more correct incremental algo, */ |
3846 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2202 | /* also do not rely on ceil */ |
3847 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2203 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3848 | |
|
|
3849 | /* the above almost always errs on the low side */ |
|
|
3850 | while (at <= ev_rt_now) |
|
|
3851 | { |
|
|
3852 | ev_tstamp nat = at + w->interval; |
|
|
3853 | |
|
|
3854 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3855 | if (ecb_expect_false (nat == at)) |
|
|
3856 | { |
|
|
3857 | at = ev_rt_now; |
|
|
3858 | break; |
|
|
3859 | } |
|
|
3860 | |
|
|
3861 | at = nat; |
|
|
3862 | } |
|
|
3863 | |
|
|
3864 | ev_at (w) = at; |
2204 | } |
3865 | } |
2205 | |
3866 | |
2206 | /* make periodics pending */ |
3867 | /* make periodics pending */ |
2207 | inline_size void |
3868 | inline_size void |
2208 | periodics_reify (EV_P) |
3869 | periodics_reify (EV_P) |
2209 | { |
3870 | { |
2210 | EV_FREQUENT_CHECK; |
3871 | EV_FREQUENT_CHECK; |
2211 | |
3872 | |
2212 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3873 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2213 | { |
3874 | { |
2214 | int feed_count = 0; |
|
|
2215 | |
|
|
2216 | do |
3875 | do |
2217 | { |
3876 | { |
2218 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3877 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2219 | |
3878 | |
2220 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3879 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2230 | downheap (periodics, periodiccnt, HEAP0); |
3889 | downheap (periodics, periodiccnt, HEAP0); |
2231 | } |
3890 | } |
2232 | else if (w->interval) |
3891 | else if (w->interval) |
2233 | { |
3892 | { |
2234 | periodic_recalc (EV_A_ w); |
3893 | periodic_recalc (EV_A_ w); |
2235 | |
|
|
2236 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2237 | /* this might happen because of floating point inexactness */ |
|
|
2238 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2239 | { |
|
|
2240 | ev_at (w) += w->interval; |
|
|
2241 | |
|
|
2242 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2243 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2244 | /* has effectively asked to get triggered more often than possible */ |
|
|
2245 | if (ev_at (w) < ev_rt_now) |
|
|
2246 | ev_at (w) = ev_rt_now; |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | ANHE_at_cache (periodics [HEAP0]); |
3894 | ANHE_at_cache (periodics [HEAP0]); |
2250 | downheap (periodics, periodiccnt, HEAP0); |
3895 | downheap (periodics, periodiccnt, HEAP0); |
2251 | } |
3896 | } |
2252 | else |
3897 | else |
2253 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3898 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2261 | } |
3906 | } |
2262 | } |
3907 | } |
2263 | |
3908 | |
2264 | /* simply recalculate all periodics */ |
3909 | /* simply recalculate all periodics */ |
2265 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3910 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2266 | static void noinline |
3911 | ecb_noinline ecb_cold |
|
|
3912 | static void |
2267 | periodics_reschedule (EV_P) |
3913 | periodics_reschedule (EV_P) |
2268 | { |
3914 | { |
2269 | int i; |
3915 | int i; |
2270 | |
3916 | |
2271 | /* adjust periodics after time jump */ |
3917 | /* adjust periodics after time jump */ |
… | |
… | |
2284 | reheap (periodics, periodiccnt); |
3930 | reheap (periodics, periodiccnt); |
2285 | } |
3931 | } |
2286 | #endif |
3932 | #endif |
2287 | |
3933 | |
2288 | /* adjust all timers by a given offset */ |
3934 | /* adjust all timers by a given offset */ |
2289 | static void noinline |
3935 | ecb_noinline ecb_cold |
|
|
3936 | static void |
2290 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3937 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2291 | { |
3938 | { |
2292 | int i; |
3939 | int i; |
2293 | |
3940 | |
2294 | for (i = 0; i < timercnt; ++i) |
3941 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2303 | /* also detect if there was a timejump, and act accordingly */ |
3950 | /* also detect if there was a timejump, and act accordingly */ |
2304 | inline_speed void |
3951 | inline_speed void |
2305 | time_update (EV_P_ ev_tstamp max_block) |
3952 | time_update (EV_P_ ev_tstamp max_block) |
2306 | { |
3953 | { |
2307 | #if EV_USE_MONOTONIC |
3954 | #if EV_USE_MONOTONIC |
2308 | if (expect_true (have_monotonic)) |
3955 | if (ecb_expect_true (have_monotonic)) |
2309 | { |
3956 | { |
2310 | int i; |
3957 | int i; |
2311 | ev_tstamp odiff = rtmn_diff; |
3958 | ev_tstamp odiff = rtmn_diff; |
2312 | |
3959 | |
2313 | mn_now = get_clock (); |
3960 | mn_now = get_clock (); |
2314 | |
3961 | |
2315 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3962 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2316 | /* interpolate in the meantime */ |
3963 | /* interpolate in the meantime */ |
2317 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3964 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2318 | { |
3965 | { |
2319 | ev_rt_now = rtmn_diff + mn_now; |
3966 | ev_rt_now = rtmn_diff + mn_now; |
2320 | return; |
3967 | return; |
2321 | } |
3968 | } |
2322 | |
3969 | |
… | |
… | |
2331 | * doesn't hurt either as we only do this on time-jumps or |
3978 | * doesn't hurt either as we only do this on time-jumps or |
2332 | * in the unlikely event of having been preempted here. |
3979 | * in the unlikely event of having been preempted here. |
2333 | */ |
3980 | */ |
2334 | for (i = 4; --i; ) |
3981 | for (i = 4; --i; ) |
2335 | { |
3982 | { |
|
|
3983 | ev_tstamp diff; |
2336 | rtmn_diff = ev_rt_now - mn_now; |
3984 | rtmn_diff = ev_rt_now - mn_now; |
2337 | |
3985 | |
2338 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3986 | diff = odiff - rtmn_diff; |
|
|
3987 | |
|
|
3988 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2339 | return; /* all is well */ |
3989 | return; /* all is well */ |
2340 | |
3990 | |
2341 | ev_rt_now = ev_time (); |
3991 | ev_rt_now = ev_time (); |
2342 | mn_now = get_clock (); |
3992 | mn_now = get_clock (); |
2343 | now_floor = mn_now; |
3993 | now_floor = mn_now; |
… | |
… | |
2352 | else |
4002 | else |
2353 | #endif |
4003 | #endif |
2354 | { |
4004 | { |
2355 | ev_rt_now = ev_time (); |
4005 | ev_rt_now = ev_time (); |
2356 | |
4006 | |
2357 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
4007 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2358 | { |
4008 | { |
2359 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
4009 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2360 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
4010 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2361 | #if EV_PERIODIC_ENABLE |
4011 | #if EV_PERIODIC_ENABLE |
2362 | periodics_reschedule (EV_A); |
4012 | periodics_reschedule (EV_A); |
… | |
… | |
2365 | |
4015 | |
2366 | mn_now = ev_rt_now; |
4016 | mn_now = ev_rt_now; |
2367 | } |
4017 | } |
2368 | } |
4018 | } |
2369 | |
4019 | |
2370 | void |
4020 | int |
2371 | ev_run (EV_P_ int flags) |
4021 | ev_run (EV_P_ int flags) |
2372 | { |
4022 | { |
2373 | #if EV_FEATURE_API |
4023 | #if EV_FEATURE_API |
2374 | ++loop_depth; |
4024 | ++loop_depth; |
2375 | #endif |
4025 | #endif |
… | |
… | |
2385 | #if EV_VERIFY >= 2 |
4035 | #if EV_VERIFY >= 2 |
2386 | ev_verify (EV_A); |
4036 | ev_verify (EV_A); |
2387 | #endif |
4037 | #endif |
2388 | |
4038 | |
2389 | #ifndef _WIN32 |
4039 | #ifndef _WIN32 |
2390 | if (expect_false (curpid)) /* penalise the forking check even more */ |
4040 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2391 | if (expect_false (getpid () != curpid)) |
4041 | if (ecb_expect_false (getpid () != curpid)) |
2392 | { |
4042 | { |
2393 | curpid = getpid (); |
4043 | curpid = getpid (); |
2394 | postfork = 1; |
4044 | postfork = 1; |
2395 | } |
4045 | } |
2396 | #endif |
4046 | #endif |
2397 | |
4047 | |
2398 | #if EV_FORK_ENABLE |
4048 | #if EV_FORK_ENABLE |
2399 | /* we might have forked, so queue fork handlers */ |
4049 | /* we might have forked, so queue fork handlers */ |
2400 | if (expect_false (postfork)) |
4050 | if (ecb_expect_false (postfork)) |
2401 | if (forkcnt) |
4051 | if (forkcnt) |
2402 | { |
4052 | { |
2403 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
4053 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2404 | EV_INVOKE_PENDING; |
4054 | EV_INVOKE_PENDING; |
2405 | } |
4055 | } |
2406 | #endif |
4056 | #endif |
2407 | |
4057 | |
2408 | #if EV_PREPARE_ENABLE |
4058 | #if EV_PREPARE_ENABLE |
2409 | /* queue prepare watchers (and execute them) */ |
4059 | /* queue prepare watchers (and execute them) */ |
2410 | if (expect_false (preparecnt)) |
4060 | if (ecb_expect_false (preparecnt)) |
2411 | { |
4061 | { |
2412 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
4062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2413 | EV_INVOKE_PENDING; |
4063 | EV_INVOKE_PENDING; |
2414 | } |
4064 | } |
2415 | #endif |
4065 | #endif |
2416 | |
4066 | |
2417 | if (expect_false (loop_done)) |
4067 | if (ecb_expect_false (loop_done)) |
2418 | break; |
4068 | break; |
2419 | |
4069 | |
2420 | /* we might have forked, so reify kernel state if necessary */ |
4070 | /* we might have forked, so reify kernel state if necessary */ |
2421 | if (expect_false (postfork)) |
4071 | if (ecb_expect_false (postfork)) |
2422 | loop_fork (EV_A); |
4072 | loop_fork (EV_A); |
2423 | |
4073 | |
2424 | /* update fd-related kernel structures */ |
4074 | /* update fd-related kernel structures */ |
2425 | fd_reify (EV_A); |
4075 | fd_reify (EV_A); |
2426 | |
4076 | |
… | |
… | |
2431 | |
4081 | |
2432 | /* remember old timestamp for io_blocktime calculation */ |
4082 | /* remember old timestamp for io_blocktime calculation */ |
2433 | ev_tstamp prev_mn_now = mn_now; |
4083 | ev_tstamp prev_mn_now = mn_now; |
2434 | |
4084 | |
2435 | /* update time to cancel out callback processing overhead */ |
4085 | /* update time to cancel out callback processing overhead */ |
2436 | time_update (EV_A_ 1e100); |
4086 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
2437 | |
4087 | |
|
|
4088 | /* from now on, we want a pipe-wake-up */ |
|
|
4089 | pipe_write_wanted = 1; |
|
|
4090 | |
|
|
4091 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
4092 | |
2438 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
4093 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2439 | { |
4094 | { |
2440 | waittime = MAX_BLOCKTIME; |
4095 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
|
|
4096 | |
|
|
4097 | #if EV_USE_MONOTONIC |
|
|
4098 | if (ecb_expect_true (have_monotonic)) |
|
|
4099 | { |
|
|
4100 | #if EV_USE_TIMERFD |
|
|
4101 | /* sleep a lot longer when we can reliably detect timejumps */ |
|
|
4102 | if (ecb_expect_true (timerfd != -1)) |
|
|
4103 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4104 | #endif |
|
|
4105 | #if !EV_PERIODIC_ENABLE |
|
|
4106 | /* without periodics but with monotonic clock there is no need */ |
|
|
4107 | /* for any time jump detection, so sleep longer */ |
|
|
4108 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4109 | #endif |
|
|
4110 | } |
|
|
4111 | #endif |
2441 | |
4112 | |
2442 | if (timercnt) |
4113 | if (timercnt) |
2443 | { |
4114 | { |
2444 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
4115 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2445 | if (waittime > to) waittime = to; |
4116 | if (waittime > to) waittime = to; |
2446 | } |
4117 | } |
2447 | |
4118 | |
2448 | #if EV_PERIODIC_ENABLE |
4119 | #if EV_PERIODIC_ENABLE |
2449 | if (periodiccnt) |
4120 | if (periodiccnt) |
2450 | { |
4121 | { |
2451 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
4122 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2452 | if (waittime > to) waittime = to; |
4123 | if (waittime > to) waittime = to; |
2453 | } |
4124 | } |
2454 | #endif |
4125 | #endif |
2455 | |
4126 | |
2456 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
4127 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2457 | if (expect_false (waittime < timeout_blocktime)) |
4128 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2458 | waittime = timeout_blocktime; |
4129 | waittime = timeout_blocktime; |
2459 | |
4130 | |
|
|
4131 | /* now there are two more special cases left, either we have |
|
|
4132 | * already-expired timers, so we should not sleep, or we have timers |
|
|
4133 | * that expire very soon, in which case we need to wait for a minimum |
|
|
4134 | * amount of time for some event loop backends. |
|
|
4135 | */ |
|
|
4136 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
4137 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
4138 | ? EV_TS_CONST (0.) |
|
|
4139 | : backend_mintime; |
|
|
4140 | |
2460 | /* extra check because io_blocktime is commonly 0 */ |
4141 | /* extra check because io_blocktime is commonly 0 */ |
2461 | if (expect_false (io_blocktime)) |
4142 | if (ecb_expect_false (io_blocktime)) |
2462 | { |
4143 | { |
2463 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4144 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2464 | |
4145 | |
2465 | if (sleeptime > waittime - backend_fudge) |
4146 | if (sleeptime > waittime - backend_mintime) |
2466 | sleeptime = waittime - backend_fudge; |
4147 | sleeptime = waittime - backend_mintime; |
2467 | |
4148 | |
2468 | if (expect_true (sleeptime > 0.)) |
4149 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2469 | { |
4150 | { |
2470 | ev_sleep (sleeptime); |
4151 | ev_sleep (sleeptime); |
2471 | waittime -= sleeptime; |
4152 | waittime -= sleeptime; |
2472 | } |
4153 | } |
2473 | } |
4154 | } |
… | |
… | |
2478 | #endif |
4159 | #endif |
2479 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
4160 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2480 | backend_poll (EV_A_ waittime); |
4161 | backend_poll (EV_A_ waittime); |
2481 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
4162 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2482 | |
4163 | |
|
|
4164 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
4165 | |
|
|
4166 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
4167 | if (pipe_write_skipped) |
|
|
4168 | { |
|
|
4169 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
4170 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
4171 | } |
|
|
4172 | |
2483 | /* update ev_rt_now, do magic */ |
4173 | /* update ev_rt_now, do magic */ |
2484 | time_update (EV_A_ waittime + sleeptime); |
4174 | time_update (EV_A_ waittime + sleeptime); |
2485 | } |
4175 | } |
2486 | |
4176 | |
2487 | /* queue pending timers and reschedule them */ |
4177 | /* queue pending timers and reschedule them */ |
… | |
… | |
2495 | idle_reify (EV_A); |
4185 | idle_reify (EV_A); |
2496 | #endif |
4186 | #endif |
2497 | |
4187 | |
2498 | #if EV_CHECK_ENABLE |
4188 | #if EV_CHECK_ENABLE |
2499 | /* queue check watchers, to be executed first */ |
4189 | /* queue check watchers, to be executed first */ |
2500 | if (expect_false (checkcnt)) |
4190 | if (ecb_expect_false (checkcnt)) |
2501 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4191 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2502 | #endif |
4192 | #endif |
2503 | |
4193 | |
2504 | EV_INVOKE_PENDING; |
4194 | EV_INVOKE_PENDING; |
2505 | } |
4195 | } |
2506 | while (expect_true ( |
4196 | while (ecb_expect_true ( |
2507 | activecnt |
4197 | activecnt |
2508 | && !loop_done |
4198 | && !loop_done |
2509 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4199 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2510 | )); |
4200 | )); |
2511 | |
4201 | |
… | |
… | |
2513 | loop_done = EVBREAK_CANCEL; |
4203 | loop_done = EVBREAK_CANCEL; |
2514 | |
4204 | |
2515 | #if EV_FEATURE_API |
4205 | #if EV_FEATURE_API |
2516 | --loop_depth; |
4206 | --loop_depth; |
2517 | #endif |
4207 | #endif |
|
|
4208 | |
|
|
4209 | return activecnt; |
2518 | } |
4210 | } |
2519 | |
4211 | |
2520 | void |
4212 | void |
2521 | ev_break (EV_P_ int how) |
4213 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2522 | { |
4214 | { |
2523 | loop_done = how; |
4215 | loop_done = how; |
2524 | } |
4216 | } |
2525 | |
4217 | |
2526 | void |
4218 | void |
2527 | ev_ref (EV_P) |
4219 | ev_ref (EV_P) EV_NOEXCEPT |
2528 | { |
4220 | { |
2529 | ++activecnt; |
4221 | ++activecnt; |
2530 | } |
4222 | } |
2531 | |
4223 | |
2532 | void |
4224 | void |
2533 | ev_unref (EV_P) |
4225 | ev_unref (EV_P) EV_NOEXCEPT |
2534 | { |
4226 | { |
2535 | --activecnt; |
4227 | --activecnt; |
2536 | } |
4228 | } |
2537 | |
4229 | |
2538 | void |
4230 | void |
2539 | ev_now_update (EV_P) |
4231 | ev_now_update (EV_P) EV_NOEXCEPT |
2540 | { |
4232 | { |
2541 | time_update (EV_A_ 1e100); |
4233 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2542 | } |
4234 | } |
2543 | |
4235 | |
2544 | void |
4236 | void |
2545 | ev_suspend (EV_P) |
4237 | ev_suspend (EV_P) EV_NOEXCEPT |
2546 | { |
4238 | { |
2547 | ev_now_update (EV_A); |
4239 | ev_now_update (EV_A); |
2548 | } |
4240 | } |
2549 | |
4241 | |
2550 | void |
4242 | void |
2551 | ev_resume (EV_P) |
4243 | ev_resume (EV_P) EV_NOEXCEPT |
2552 | { |
4244 | { |
2553 | ev_tstamp mn_prev = mn_now; |
4245 | ev_tstamp mn_prev = mn_now; |
2554 | |
4246 | |
2555 | ev_now_update (EV_A); |
4247 | ev_now_update (EV_A); |
2556 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4248 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2573 | inline_size void |
4265 | inline_size void |
2574 | wlist_del (WL *head, WL elem) |
4266 | wlist_del (WL *head, WL elem) |
2575 | { |
4267 | { |
2576 | while (*head) |
4268 | while (*head) |
2577 | { |
4269 | { |
2578 | if (expect_true (*head == elem)) |
4270 | if (ecb_expect_true (*head == elem)) |
2579 | { |
4271 | { |
2580 | *head = elem->next; |
4272 | *head = elem->next; |
2581 | break; |
4273 | break; |
2582 | } |
4274 | } |
2583 | |
4275 | |
… | |
… | |
2595 | w->pending = 0; |
4287 | w->pending = 0; |
2596 | } |
4288 | } |
2597 | } |
4289 | } |
2598 | |
4290 | |
2599 | int |
4291 | int |
2600 | ev_clear_pending (EV_P_ void *w) |
4292 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2601 | { |
4293 | { |
2602 | W w_ = (W)w; |
4294 | W w_ = (W)w; |
2603 | int pending = w_->pending; |
4295 | int pending = w_->pending; |
2604 | |
4296 | |
2605 | if (expect_true (pending)) |
4297 | if (ecb_expect_true (pending)) |
2606 | { |
4298 | { |
2607 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4299 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2608 | p->w = (W)&pending_w; |
4300 | p->w = (W)&pending_w; |
2609 | w_->pending = 0; |
4301 | w_->pending = 0; |
2610 | return p->events; |
4302 | return p->events; |
… | |
… | |
2637 | w->active = 0; |
4329 | w->active = 0; |
2638 | } |
4330 | } |
2639 | |
4331 | |
2640 | /*****************************************************************************/ |
4332 | /*****************************************************************************/ |
2641 | |
4333 | |
2642 | void noinline |
4334 | ecb_noinline |
|
|
4335 | void |
2643 | ev_io_start (EV_P_ ev_io *w) |
4336 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2644 | { |
4337 | { |
2645 | int fd = w->fd; |
4338 | int fd = w->fd; |
2646 | |
4339 | |
2647 | if (expect_false (ev_is_active (w))) |
4340 | if (ecb_expect_false (ev_is_active (w))) |
2648 | return; |
4341 | return; |
2649 | |
4342 | |
2650 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4343 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2651 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4344 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2652 | |
4345 | |
|
|
4346 | #if EV_VERIFY >= 2 |
|
|
4347 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4348 | #endif |
2653 | EV_FREQUENT_CHECK; |
4349 | EV_FREQUENT_CHECK; |
2654 | |
4350 | |
2655 | ev_start (EV_A_ (W)w, 1); |
4351 | ev_start (EV_A_ (W)w, 1); |
2656 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4352 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2657 | wlist_add (&anfds[fd].head, (WL)w); |
4353 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4354 | |
|
|
4355 | /* common bug, apparently */ |
|
|
4356 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2658 | |
4357 | |
2659 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4358 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2660 | w->events &= ~EV__IOFDSET; |
4359 | w->events &= ~EV__IOFDSET; |
2661 | |
4360 | |
2662 | EV_FREQUENT_CHECK; |
4361 | EV_FREQUENT_CHECK; |
2663 | } |
4362 | } |
2664 | |
4363 | |
2665 | void noinline |
4364 | ecb_noinline |
|
|
4365 | void |
2666 | ev_io_stop (EV_P_ ev_io *w) |
4366 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2667 | { |
4367 | { |
2668 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
2669 | if (expect_false (!ev_is_active (w))) |
4369 | if (ecb_expect_false (!ev_is_active (w))) |
2670 | return; |
4370 | return; |
2671 | |
4371 | |
2672 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4372 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2673 | |
4373 | |
|
|
4374 | #if EV_VERIFY >= 2 |
|
|
4375 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4376 | #endif |
2674 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
2675 | |
4378 | |
2676 | wlist_del (&anfds[w->fd].head, (WL)w); |
4379 | wlist_del (&anfds[w->fd].head, (WL)w); |
2677 | ev_stop (EV_A_ (W)w); |
4380 | ev_stop (EV_A_ (W)w); |
2678 | |
4381 | |
2679 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4382 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2680 | |
4383 | |
2681 | EV_FREQUENT_CHECK; |
4384 | EV_FREQUENT_CHECK; |
2682 | } |
4385 | } |
2683 | |
4386 | |
2684 | void noinline |
4387 | ecb_noinline |
|
|
4388 | void |
2685 | ev_timer_start (EV_P_ ev_timer *w) |
4389 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2686 | { |
4390 | { |
2687 | if (expect_false (ev_is_active (w))) |
4391 | if (ecb_expect_false (ev_is_active (w))) |
2688 | return; |
4392 | return; |
2689 | |
4393 | |
2690 | ev_at (w) += mn_now; |
4394 | ev_at (w) += mn_now; |
2691 | |
4395 | |
2692 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4396 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2693 | |
4397 | |
2694 | EV_FREQUENT_CHECK; |
4398 | EV_FREQUENT_CHECK; |
2695 | |
4399 | |
2696 | ++timercnt; |
4400 | ++timercnt; |
2697 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4401 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2698 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4402 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2699 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4403 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2700 | ANHE_at_cache (timers [ev_active (w)]); |
4404 | ANHE_at_cache (timers [ev_active (w)]); |
2701 | upheap (timers, ev_active (w)); |
4405 | upheap (timers, ev_active (w)); |
2702 | |
4406 | |
2703 | EV_FREQUENT_CHECK; |
4407 | EV_FREQUENT_CHECK; |
2704 | |
4408 | |
2705 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4409 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2706 | } |
4410 | } |
2707 | |
4411 | |
2708 | void noinline |
4412 | ecb_noinline |
|
|
4413 | void |
2709 | ev_timer_stop (EV_P_ ev_timer *w) |
4414 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2710 | { |
4415 | { |
2711 | clear_pending (EV_A_ (W)w); |
4416 | clear_pending (EV_A_ (W)w); |
2712 | if (expect_false (!ev_is_active (w))) |
4417 | if (ecb_expect_false (!ev_is_active (w))) |
2713 | return; |
4418 | return; |
2714 | |
4419 | |
2715 | EV_FREQUENT_CHECK; |
4420 | EV_FREQUENT_CHECK; |
2716 | |
4421 | |
2717 | { |
4422 | { |
… | |
… | |
2719 | |
4424 | |
2720 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4425 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2721 | |
4426 | |
2722 | --timercnt; |
4427 | --timercnt; |
2723 | |
4428 | |
2724 | if (expect_true (active < timercnt + HEAP0)) |
4429 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2725 | { |
4430 | { |
2726 | timers [active] = timers [timercnt + HEAP0]; |
4431 | timers [active] = timers [timercnt + HEAP0]; |
2727 | adjustheap (timers, timercnt, active); |
4432 | adjustheap (timers, timercnt, active); |
2728 | } |
4433 | } |
2729 | } |
4434 | } |
… | |
… | |
2733 | ev_stop (EV_A_ (W)w); |
4438 | ev_stop (EV_A_ (W)w); |
2734 | |
4439 | |
2735 | EV_FREQUENT_CHECK; |
4440 | EV_FREQUENT_CHECK; |
2736 | } |
4441 | } |
2737 | |
4442 | |
2738 | void noinline |
4443 | ecb_noinline |
|
|
4444 | void |
2739 | ev_timer_again (EV_P_ ev_timer *w) |
4445 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2740 | { |
4446 | { |
2741 | EV_FREQUENT_CHECK; |
4447 | EV_FREQUENT_CHECK; |
|
|
4448 | |
|
|
4449 | clear_pending (EV_A_ (W)w); |
2742 | |
4450 | |
2743 | if (ev_is_active (w)) |
4451 | if (ev_is_active (w)) |
2744 | { |
4452 | { |
2745 | if (w->repeat) |
4453 | if (w->repeat) |
2746 | { |
4454 | { |
… | |
… | |
2759 | |
4467 | |
2760 | EV_FREQUENT_CHECK; |
4468 | EV_FREQUENT_CHECK; |
2761 | } |
4469 | } |
2762 | |
4470 | |
2763 | ev_tstamp |
4471 | ev_tstamp |
2764 | ev_timer_remaining (EV_P_ ev_timer *w) |
4472 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2765 | { |
4473 | { |
2766 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4474 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2767 | } |
4475 | } |
2768 | |
4476 | |
2769 | #if EV_PERIODIC_ENABLE |
4477 | #if EV_PERIODIC_ENABLE |
2770 | void noinline |
4478 | ecb_noinline |
|
|
4479 | void |
2771 | ev_periodic_start (EV_P_ ev_periodic *w) |
4480 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2772 | { |
4481 | { |
2773 | if (expect_false (ev_is_active (w))) |
4482 | if (ecb_expect_false (ev_is_active (w))) |
2774 | return; |
4483 | return; |
|
|
4484 | |
|
|
4485 | #if EV_USE_TIMERFD |
|
|
4486 | if (timerfd == -2) |
|
|
4487 | evtimerfd_init (EV_A); |
|
|
4488 | #endif |
2775 | |
4489 | |
2776 | if (w->reschedule_cb) |
4490 | if (w->reschedule_cb) |
2777 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4491 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2778 | else if (w->interval) |
4492 | else if (w->interval) |
2779 | { |
4493 | { |
… | |
… | |
2785 | |
4499 | |
2786 | EV_FREQUENT_CHECK; |
4500 | EV_FREQUENT_CHECK; |
2787 | |
4501 | |
2788 | ++periodiccnt; |
4502 | ++periodiccnt; |
2789 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4503 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2790 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4504 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2791 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4505 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2792 | ANHE_at_cache (periodics [ev_active (w)]); |
4506 | ANHE_at_cache (periodics [ev_active (w)]); |
2793 | upheap (periodics, ev_active (w)); |
4507 | upheap (periodics, ev_active (w)); |
2794 | |
4508 | |
2795 | EV_FREQUENT_CHECK; |
4509 | EV_FREQUENT_CHECK; |
2796 | |
4510 | |
2797 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4511 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2798 | } |
4512 | } |
2799 | |
4513 | |
2800 | void noinline |
4514 | ecb_noinline |
|
|
4515 | void |
2801 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4516 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2802 | { |
4517 | { |
2803 | clear_pending (EV_A_ (W)w); |
4518 | clear_pending (EV_A_ (W)w); |
2804 | if (expect_false (!ev_is_active (w))) |
4519 | if (ecb_expect_false (!ev_is_active (w))) |
2805 | return; |
4520 | return; |
2806 | |
4521 | |
2807 | EV_FREQUENT_CHECK; |
4522 | EV_FREQUENT_CHECK; |
2808 | |
4523 | |
2809 | { |
4524 | { |
… | |
… | |
2811 | |
4526 | |
2812 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4527 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2813 | |
4528 | |
2814 | --periodiccnt; |
4529 | --periodiccnt; |
2815 | |
4530 | |
2816 | if (expect_true (active < periodiccnt + HEAP0)) |
4531 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2817 | { |
4532 | { |
2818 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4533 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2819 | adjustheap (periodics, periodiccnt, active); |
4534 | adjustheap (periodics, periodiccnt, active); |
2820 | } |
4535 | } |
2821 | } |
4536 | } |
… | |
… | |
2823 | ev_stop (EV_A_ (W)w); |
4538 | ev_stop (EV_A_ (W)w); |
2824 | |
4539 | |
2825 | EV_FREQUENT_CHECK; |
4540 | EV_FREQUENT_CHECK; |
2826 | } |
4541 | } |
2827 | |
4542 | |
2828 | void noinline |
4543 | ecb_noinline |
|
|
4544 | void |
2829 | ev_periodic_again (EV_P_ ev_periodic *w) |
4545 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2830 | { |
4546 | { |
2831 | /* TODO: use adjustheap and recalculation */ |
4547 | /* TODO: use adjustheap and recalculation */ |
2832 | ev_periodic_stop (EV_A_ w); |
4548 | ev_periodic_stop (EV_A_ w); |
2833 | ev_periodic_start (EV_A_ w); |
4549 | ev_periodic_start (EV_A_ w); |
2834 | } |
4550 | } |
… | |
… | |
2838 | # define SA_RESTART 0 |
4554 | # define SA_RESTART 0 |
2839 | #endif |
4555 | #endif |
2840 | |
4556 | |
2841 | #if EV_SIGNAL_ENABLE |
4557 | #if EV_SIGNAL_ENABLE |
2842 | |
4558 | |
2843 | void noinline |
4559 | ecb_noinline |
|
|
4560 | void |
2844 | ev_signal_start (EV_P_ ev_signal *w) |
4561 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2845 | { |
4562 | { |
2846 | if (expect_false (ev_is_active (w))) |
4563 | if (ecb_expect_false (ev_is_active (w))) |
2847 | return; |
4564 | return; |
2848 | |
4565 | |
2849 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4566 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2850 | |
4567 | |
2851 | #if EV_MULTIPLICITY |
4568 | #if EV_MULTIPLICITY |
2852 | assert (("libev: a signal must not be attached to two different loops", |
4569 | assert (("libev: a signal must not be attached to two different loops", |
2853 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4570 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2854 | |
4571 | |
2855 | signals [w->signum - 1].loop = EV_A; |
4572 | signals [w->signum - 1].loop = EV_A; |
|
|
4573 | ECB_MEMORY_FENCE_RELEASE; |
2856 | #endif |
4574 | #endif |
2857 | |
4575 | |
2858 | EV_FREQUENT_CHECK; |
4576 | EV_FREQUENT_CHECK; |
2859 | |
4577 | |
2860 | #if EV_USE_SIGNALFD |
4578 | #if EV_USE_SIGNALFD |
… | |
… | |
2919 | } |
4637 | } |
2920 | |
4638 | |
2921 | EV_FREQUENT_CHECK; |
4639 | EV_FREQUENT_CHECK; |
2922 | } |
4640 | } |
2923 | |
4641 | |
2924 | void noinline |
4642 | ecb_noinline |
|
|
4643 | void |
2925 | ev_signal_stop (EV_P_ ev_signal *w) |
4644 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2926 | { |
4645 | { |
2927 | clear_pending (EV_A_ (W)w); |
4646 | clear_pending (EV_A_ (W)w); |
2928 | if (expect_false (!ev_is_active (w))) |
4647 | if (ecb_expect_false (!ev_is_active (w))) |
2929 | return; |
4648 | return; |
2930 | |
4649 | |
2931 | EV_FREQUENT_CHECK; |
4650 | EV_FREQUENT_CHECK; |
2932 | |
4651 | |
2933 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4652 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
2961 | #endif |
4680 | #endif |
2962 | |
4681 | |
2963 | #if EV_CHILD_ENABLE |
4682 | #if EV_CHILD_ENABLE |
2964 | |
4683 | |
2965 | void |
4684 | void |
2966 | ev_child_start (EV_P_ ev_child *w) |
4685 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2967 | { |
4686 | { |
2968 | #if EV_MULTIPLICITY |
4687 | #if EV_MULTIPLICITY |
2969 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4688 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2970 | #endif |
4689 | #endif |
2971 | if (expect_false (ev_is_active (w))) |
4690 | if (ecb_expect_false (ev_is_active (w))) |
2972 | return; |
4691 | return; |
2973 | |
4692 | |
2974 | EV_FREQUENT_CHECK; |
4693 | EV_FREQUENT_CHECK; |
2975 | |
4694 | |
2976 | ev_start (EV_A_ (W)w, 1); |
4695 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2978 | |
4697 | |
2979 | EV_FREQUENT_CHECK; |
4698 | EV_FREQUENT_CHECK; |
2980 | } |
4699 | } |
2981 | |
4700 | |
2982 | void |
4701 | void |
2983 | ev_child_stop (EV_P_ ev_child *w) |
4702 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2984 | { |
4703 | { |
2985 | clear_pending (EV_A_ (W)w); |
4704 | clear_pending (EV_A_ (W)w); |
2986 | if (expect_false (!ev_is_active (w))) |
4705 | if (ecb_expect_false (!ev_is_active (w))) |
2987 | return; |
4706 | return; |
2988 | |
4707 | |
2989 | EV_FREQUENT_CHECK; |
4708 | EV_FREQUENT_CHECK; |
2990 | |
4709 | |
2991 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4710 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3005 | |
4724 | |
3006 | #define DEF_STAT_INTERVAL 5.0074891 |
4725 | #define DEF_STAT_INTERVAL 5.0074891 |
3007 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4726 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3008 | #define MIN_STAT_INTERVAL 0.1074891 |
4727 | #define MIN_STAT_INTERVAL 0.1074891 |
3009 | |
4728 | |
3010 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4729 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3011 | |
4730 | |
3012 | #if EV_USE_INOTIFY |
4731 | #if EV_USE_INOTIFY |
3013 | |
4732 | |
3014 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4733 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3015 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4734 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3016 | |
4735 | |
3017 | static void noinline |
4736 | ecb_noinline |
|
|
4737 | static void |
3018 | infy_add (EV_P_ ev_stat *w) |
4738 | infy_add (EV_P_ ev_stat *w) |
3019 | { |
4739 | { |
3020 | 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); |
4740 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4741 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4742 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4743 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3021 | |
4744 | |
3022 | if (w->wd >= 0) |
4745 | if (w->wd >= 0) |
3023 | { |
4746 | { |
3024 | struct statfs sfs; |
4747 | struct statfs sfs; |
3025 | |
4748 | |
… | |
… | |
3029 | |
4752 | |
3030 | if (!fs_2625) |
4753 | if (!fs_2625) |
3031 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4754 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3032 | else if (!statfs (w->path, &sfs) |
4755 | else if (!statfs (w->path, &sfs) |
3033 | && (sfs.f_type == 0x1373 /* devfs */ |
4756 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4757 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4758 | || sfs.f_type == 0x4d44 /* msdos */ |
3034 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4759 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4760 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4761 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4762 | || sfs.f_type == 0x5346544e /* ntfs */ |
3035 | || sfs.f_type == 0x3153464a /* jfs */ |
4763 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4764 | || sfs.f_type == 0x9123683e /* btrfs */ |
3036 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4765 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3037 | || sfs.f_type == 0x01021994 /* tempfs */ |
4766 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3038 | || sfs.f_type == 0x58465342 /* xfs */)) |
4767 | || sfs.f_type == 0x58465342 /* xfs */)) |
3039 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4768 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3040 | else |
4769 | else |
3041 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4770 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3042 | } |
4771 | } |
… | |
… | |
3063 | if (!pend || pend == path) |
4792 | if (!pend || pend == path) |
3064 | break; |
4793 | break; |
3065 | |
4794 | |
3066 | *pend = 0; |
4795 | *pend = 0; |
3067 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4796 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3068 | } |
4797 | } |
3069 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4798 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3070 | } |
4799 | } |
3071 | } |
4800 | } |
3072 | |
4801 | |
3073 | if (w->wd >= 0) |
4802 | if (w->wd >= 0) |
… | |
… | |
3077 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4806 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3078 | ev_timer_again (EV_A_ &w->timer); |
4807 | ev_timer_again (EV_A_ &w->timer); |
3079 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4808 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3080 | } |
4809 | } |
3081 | |
4810 | |
3082 | static void noinline |
4811 | ecb_noinline |
|
|
4812 | static void |
3083 | infy_del (EV_P_ ev_stat *w) |
4813 | infy_del (EV_P_ ev_stat *w) |
3084 | { |
4814 | { |
3085 | int slot; |
4815 | int slot; |
3086 | int wd = w->wd; |
4816 | int wd = w->wd; |
3087 | |
4817 | |
… | |
… | |
3094 | |
4824 | |
3095 | /* remove this watcher, if others are watching it, they will rearm */ |
4825 | /* remove this watcher, if others are watching it, they will rearm */ |
3096 | inotify_rm_watch (fs_fd, wd); |
4826 | inotify_rm_watch (fs_fd, wd); |
3097 | } |
4827 | } |
3098 | |
4828 | |
3099 | static void noinline |
4829 | ecb_noinline |
|
|
4830 | static void |
3100 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4831 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3101 | { |
4832 | { |
3102 | if (slot < 0) |
4833 | if (slot < 0) |
3103 | /* overflow, need to check for all hash slots */ |
4834 | /* overflow, need to check for all hash slots */ |
3104 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4835 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3140 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4871 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3141 | ofs += sizeof (struct inotify_event) + ev->len; |
4872 | ofs += sizeof (struct inotify_event) + ev->len; |
3142 | } |
4873 | } |
3143 | } |
4874 | } |
3144 | |
4875 | |
3145 | inline_size void |
4876 | inline_size ecb_cold |
|
|
4877 | void |
3146 | ev_check_2625 (EV_P) |
4878 | ev_check_2625 (EV_P) |
3147 | { |
4879 | { |
3148 | /* kernels < 2.6.25 are borked |
4880 | /* kernels < 2.6.25 are borked |
3149 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4881 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3150 | */ |
4882 | */ |
… | |
… | |
3155 | } |
4887 | } |
3156 | |
4888 | |
3157 | inline_size int |
4889 | inline_size int |
3158 | infy_newfd (void) |
4890 | infy_newfd (void) |
3159 | { |
4891 | { |
3160 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4892 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3161 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4893 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3162 | if (fd >= 0) |
4894 | if (fd >= 0) |
3163 | return fd; |
4895 | return fd; |
3164 | #endif |
4896 | #endif |
3165 | return inotify_init (); |
4897 | return inotify_init (); |
… | |
… | |
3240 | #else |
4972 | #else |
3241 | # define EV_LSTAT(p,b) lstat (p, b) |
4973 | # define EV_LSTAT(p,b) lstat (p, b) |
3242 | #endif |
4974 | #endif |
3243 | |
4975 | |
3244 | void |
4976 | void |
3245 | ev_stat_stat (EV_P_ ev_stat *w) |
4977 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3246 | { |
4978 | { |
3247 | if (lstat (w->path, &w->attr) < 0) |
4979 | if (lstat (w->path, &w->attr) < 0) |
3248 | w->attr.st_nlink = 0; |
4980 | w->attr.st_nlink = 0; |
3249 | else if (!w->attr.st_nlink) |
4981 | else if (!w->attr.st_nlink) |
3250 | w->attr.st_nlink = 1; |
4982 | w->attr.st_nlink = 1; |
3251 | } |
4983 | } |
3252 | |
4984 | |
3253 | static void noinline |
4985 | ecb_noinline |
|
|
4986 | static void |
3254 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4987 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3255 | { |
4988 | { |
3256 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4989 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3257 | |
4990 | |
3258 | ev_statdata prev = w->attr; |
4991 | ev_statdata prev = w->attr; |
… | |
… | |
3289 | ev_feed_event (EV_A_ w, EV_STAT); |
5022 | ev_feed_event (EV_A_ w, EV_STAT); |
3290 | } |
5023 | } |
3291 | } |
5024 | } |
3292 | |
5025 | |
3293 | void |
5026 | void |
3294 | ev_stat_start (EV_P_ ev_stat *w) |
5027 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3295 | { |
5028 | { |
3296 | if (expect_false (ev_is_active (w))) |
5029 | if (ecb_expect_false (ev_is_active (w))) |
3297 | return; |
5030 | return; |
3298 | |
5031 | |
3299 | ev_stat_stat (EV_A_ w); |
5032 | ev_stat_stat (EV_A_ w); |
3300 | |
5033 | |
3301 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
5034 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3320 | |
5053 | |
3321 | EV_FREQUENT_CHECK; |
5054 | EV_FREQUENT_CHECK; |
3322 | } |
5055 | } |
3323 | |
5056 | |
3324 | void |
5057 | void |
3325 | ev_stat_stop (EV_P_ ev_stat *w) |
5058 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3326 | { |
5059 | { |
3327 | clear_pending (EV_A_ (W)w); |
5060 | clear_pending (EV_A_ (W)w); |
3328 | if (expect_false (!ev_is_active (w))) |
5061 | if (ecb_expect_false (!ev_is_active (w))) |
3329 | return; |
5062 | return; |
3330 | |
5063 | |
3331 | EV_FREQUENT_CHECK; |
5064 | EV_FREQUENT_CHECK; |
3332 | |
5065 | |
3333 | #if EV_USE_INOTIFY |
5066 | #if EV_USE_INOTIFY |
… | |
… | |
3346 | } |
5079 | } |
3347 | #endif |
5080 | #endif |
3348 | |
5081 | |
3349 | #if EV_IDLE_ENABLE |
5082 | #if EV_IDLE_ENABLE |
3350 | void |
5083 | void |
3351 | ev_idle_start (EV_P_ ev_idle *w) |
5084 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3352 | { |
5085 | { |
3353 | if (expect_false (ev_is_active (w))) |
5086 | if (ecb_expect_false (ev_is_active (w))) |
3354 | return; |
5087 | return; |
3355 | |
5088 | |
3356 | pri_adjust (EV_A_ (W)w); |
5089 | pri_adjust (EV_A_ (W)w); |
3357 | |
5090 | |
3358 | EV_FREQUENT_CHECK; |
5091 | EV_FREQUENT_CHECK; |
… | |
… | |
3361 | int active = ++idlecnt [ABSPRI (w)]; |
5094 | int active = ++idlecnt [ABSPRI (w)]; |
3362 | |
5095 | |
3363 | ++idleall; |
5096 | ++idleall; |
3364 | ev_start (EV_A_ (W)w, active); |
5097 | ev_start (EV_A_ (W)w, active); |
3365 | |
5098 | |
3366 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
5099 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3367 | idles [ABSPRI (w)][active - 1] = w; |
5100 | idles [ABSPRI (w)][active - 1] = w; |
3368 | } |
5101 | } |
3369 | |
5102 | |
3370 | EV_FREQUENT_CHECK; |
5103 | EV_FREQUENT_CHECK; |
3371 | } |
5104 | } |
3372 | |
5105 | |
3373 | void |
5106 | void |
3374 | ev_idle_stop (EV_P_ ev_idle *w) |
5107 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3375 | { |
5108 | { |
3376 | clear_pending (EV_A_ (W)w); |
5109 | clear_pending (EV_A_ (W)w); |
3377 | if (expect_false (!ev_is_active (w))) |
5110 | if (ecb_expect_false (!ev_is_active (w))) |
3378 | return; |
5111 | return; |
3379 | |
5112 | |
3380 | EV_FREQUENT_CHECK; |
5113 | EV_FREQUENT_CHECK; |
3381 | |
5114 | |
3382 | { |
5115 | { |
… | |
… | |
3393 | } |
5126 | } |
3394 | #endif |
5127 | #endif |
3395 | |
5128 | |
3396 | #if EV_PREPARE_ENABLE |
5129 | #if EV_PREPARE_ENABLE |
3397 | void |
5130 | void |
3398 | ev_prepare_start (EV_P_ ev_prepare *w) |
5131 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3399 | { |
5132 | { |
3400 | if (expect_false (ev_is_active (w))) |
5133 | if (ecb_expect_false (ev_is_active (w))) |
3401 | return; |
5134 | return; |
3402 | |
5135 | |
3403 | EV_FREQUENT_CHECK; |
5136 | EV_FREQUENT_CHECK; |
3404 | |
5137 | |
3405 | ev_start (EV_A_ (W)w, ++preparecnt); |
5138 | ev_start (EV_A_ (W)w, ++preparecnt); |
3406 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
5139 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3407 | prepares [preparecnt - 1] = w; |
5140 | prepares [preparecnt - 1] = w; |
3408 | |
5141 | |
3409 | EV_FREQUENT_CHECK; |
5142 | EV_FREQUENT_CHECK; |
3410 | } |
5143 | } |
3411 | |
5144 | |
3412 | void |
5145 | void |
3413 | ev_prepare_stop (EV_P_ ev_prepare *w) |
5146 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3414 | { |
5147 | { |
3415 | clear_pending (EV_A_ (W)w); |
5148 | clear_pending (EV_A_ (W)w); |
3416 | if (expect_false (!ev_is_active (w))) |
5149 | if (ecb_expect_false (!ev_is_active (w))) |
3417 | return; |
5150 | return; |
3418 | |
5151 | |
3419 | EV_FREQUENT_CHECK; |
5152 | EV_FREQUENT_CHECK; |
3420 | |
5153 | |
3421 | { |
5154 | { |
… | |
… | |
3431 | } |
5164 | } |
3432 | #endif |
5165 | #endif |
3433 | |
5166 | |
3434 | #if EV_CHECK_ENABLE |
5167 | #if EV_CHECK_ENABLE |
3435 | void |
5168 | void |
3436 | ev_check_start (EV_P_ ev_check *w) |
5169 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3437 | { |
5170 | { |
3438 | if (expect_false (ev_is_active (w))) |
5171 | if (ecb_expect_false (ev_is_active (w))) |
3439 | return; |
5172 | return; |
3440 | |
5173 | |
3441 | EV_FREQUENT_CHECK; |
5174 | EV_FREQUENT_CHECK; |
3442 | |
5175 | |
3443 | ev_start (EV_A_ (W)w, ++checkcnt); |
5176 | ev_start (EV_A_ (W)w, ++checkcnt); |
3444 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5177 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3445 | checks [checkcnt - 1] = w; |
5178 | checks [checkcnt - 1] = w; |
3446 | |
5179 | |
3447 | EV_FREQUENT_CHECK; |
5180 | EV_FREQUENT_CHECK; |
3448 | } |
5181 | } |
3449 | |
5182 | |
3450 | void |
5183 | void |
3451 | ev_check_stop (EV_P_ ev_check *w) |
5184 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3452 | { |
5185 | { |
3453 | clear_pending (EV_A_ (W)w); |
5186 | clear_pending (EV_A_ (W)w); |
3454 | if (expect_false (!ev_is_active (w))) |
5187 | if (ecb_expect_false (!ev_is_active (w))) |
3455 | return; |
5188 | return; |
3456 | |
5189 | |
3457 | EV_FREQUENT_CHECK; |
5190 | EV_FREQUENT_CHECK; |
3458 | |
5191 | |
3459 | { |
5192 | { |
… | |
… | |
3468 | EV_FREQUENT_CHECK; |
5201 | EV_FREQUENT_CHECK; |
3469 | } |
5202 | } |
3470 | #endif |
5203 | #endif |
3471 | |
5204 | |
3472 | #if EV_EMBED_ENABLE |
5205 | #if EV_EMBED_ENABLE |
3473 | void noinline |
5206 | ecb_noinline |
|
|
5207 | void |
3474 | ev_embed_sweep (EV_P_ ev_embed *w) |
5208 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3475 | { |
5209 | { |
3476 | ev_run (w->other, EVRUN_NOWAIT); |
5210 | ev_run (w->other, EVRUN_NOWAIT); |
3477 | } |
5211 | } |
3478 | |
5212 | |
3479 | static void |
5213 | static void |
… | |
… | |
3501 | ev_run (EV_A_ EVRUN_NOWAIT); |
5235 | ev_run (EV_A_ EVRUN_NOWAIT); |
3502 | } |
5236 | } |
3503 | } |
5237 | } |
3504 | } |
5238 | } |
3505 | |
5239 | |
|
|
5240 | #if EV_FORK_ENABLE |
3506 | static void |
5241 | static void |
3507 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5242 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3508 | { |
5243 | { |
3509 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5244 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3510 | |
5245 | |
… | |
… | |
3517 | ev_run (EV_A_ EVRUN_NOWAIT); |
5252 | ev_run (EV_A_ EVRUN_NOWAIT); |
3518 | } |
5253 | } |
3519 | |
5254 | |
3520 | ev_embed_start (EV_A_ w); |
5255 | ev_embed_start (EV_A_ w); |
3521 | } |
5256 | } |
|
|
5257 | #endif |
3522 | |
5258 | |
3523 | #if 0 |
5259 | #if 0 |
3524 | static void |
5260 | static void |
3525 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5261 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3526 | { |
5262 | { |
3527 | ev_idle_stop (EV_A_ idle); |
5263 | ev_idle_stop (EV_A_ idle); |
3528 | } |
5264 | } |
3529 | #endif |
5265 | #endif |
3530 | |
5266 | |
3531 | void |
5267 | void |
3532 | ev_embed_start (EV_P_ ev_embed *w) |
5268 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3533 | { |
5269 | { |
3534 | if (expect_false (ev_is_active (w))) |
5270 | if (ecb_expect_false (ev_is_active (w))) |
3535 | return; |
5271 | return; |
3536 | |
5272 | |
3537 | { |
5273 | { |
3538 | EV_P = w->other; |
5274 | EV_P = w->other; |
3539 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5275 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3547 | |
5283 | |
3548 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5284 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3549 | ev_set_priority (&w->prepare, EV_MINPRI); |
5285 | ev_set_priority (&w->prepare, EV_MINPRI); |
3550 | ev_prepare_start (EV_A_ &w->prepare); |
5286 | ev_prepare_start (EV_A_ &w->prepare); |
3551 | |
5287 | |
|
|
5288 | #if EV_FORK_ENABLE |
3552 | ev_fork_init (&w->fork, embed_fork_cb); |
5289 | ev_fork_init (&w->fork, embed_fork_cb); |
3553 | ev_fork_start (EV_A_ &w->fork); |
5290 | ev_fork_start (EV_A_ &w->fork); |
|
|
5291 | #endif |
3554 | |
5292 | |
3555 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5293 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3556 | |
5294 | |
3557 | ev_start (EV_A_ (W)w, 1); |
5295 | ev_start (EV_A_ (W)w, 1); |
3558 | |
5296 | |
3559 | EV_FREQUENT_CHECK; |
5297 | EV_FREQUENT_CHECK; |
3560 | } |
5298 | } |
3561 | |
5299 | |
3562 | void |
5300 | void |
3563 | ev_embed_stop (EV_P_ ev_embed *w) |
5301 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3564 | { |
5302 | { |
3565 | clear_pending (EV_A_ (W)w); |
5303 | clear_pending (EV_A_ (W)w); |
3566 | if (expect_false (!ev_is_active (w))) |
5304 | if (ecb_expect_false (!ev_is_active (w))) |
3567 | return; |
5305 | return; |
3568 | |
5306 | |
3569 | EV_FREQUENT_CHECK; |
5307 | EV_FREQUENT_CHECK; |
3570 | |
5308 | |
3571 | ev_io_stop (EV_A_ &w->io); |
5309 | ev_io_stop (EV_A_ &w->io); |
3572 | ev_prepare_stop (EV_A_ &w->prepare); |
5310 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5311 | #if EV_FORK_ENABLE |
3573 | ev_fork_stop (EV_A_ &w->fork); |
5312 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5313 | #endif |
3574 | |
5314 | |
3575 | ev_stop (EV_A_ (W)w); |
5315 | ev_stop (EV_A_ (W)w); |
3576 | |
5316 | |
3577 | EV_FREQUENT_CHECK; |
5317 | EV_FREQUENT_CHECK; |
3578 | } |
5318 | } |
3579 | #endif |
5319 | #endif |
3580 | |
5320 | |
3581 | #if EV_FORK_ENABLE |
5321 | #if EV_FORK_ENABLE |
3582 | void |
5322 | void |
3583 | ev_fork_start (EV_P_ ev_fork *w) |
5323 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3584 | { |
5324 | { |
3585 | if (expect_false (ev_is_active (w))) |
5325 | if (ecb_expect_false (ev_is_active (w))) |
3586 | return; |
5326 | return; |
3587 | |
5327 | |
3588 | EV_FREQUENT_CHECK; |
5328 | EV_FREQUENT_CHECK; |
3589 | |
5329 | |
3590 | ev_start (EV_A_ (W)w, ++forkcnt); |
5330 | ev_start (EV_A_ (W)w, ++forkcnt); |
3591 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5331 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3592 | forks [forkcnt - 1] = w; |
5332 | forks [forkcnt - 1] = w; |
3593 | |
5333 | |
3594 | EV_FREQUENT_CHECK; |
5334 | EV_FREQUENT_CHECK; |
3595 | } |
5335 | } |
3596 | |
5336 | |
3597 | void |
5337 | void |
3598 | ev_fork_stop (EV_P_ ev_fork *w) |
5338 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3599 | { |
5339 | { |
3600 | clear_pending (EV_A_ (W)w); |
5340 | clear_pending (EV_A_ (W)w); |
3601 | if (expect_false (!ev_is_active (w))) |
5341 | if (ecb_expect_false (!ev_is_active (w))) |
3602 | return; |
5342 | return; |
3603 | |
5343 | |
3604 | EV_FREQUENT_CHECK; |
5344 | EV_FREQUENT_CHECK; |
3605 | |
5345 | |
3606 | { |
5346 | { |
… | |
… | |
3616 | } |
5356 | } |
3617 | #endif |
5357 | #endif |
3618 | |
5358 | |
3619 | #if EV_CLEANUP_ENABLE |
5359 | #if EV_CLEANUP_ENABLE |
3620 | void |
5360 | void |
3621 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
5361 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3622 | { |
5362 | { |
3623 | if (expect_false (ev_is_active (w))) |
5363 | if (ecb_expect_false (ev_is_active (w))) |
3624 | return; |
5364 | return; |
3625 | |
5365 | |
3626 | EV_FREQUENT_CHECK; |
5366 | EV_FREQUENT_CHECK; |
3627 | |
5367 | |
3628 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5368 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
3629 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5369 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
3630 | cleanups [cleanupcnt - 1] = w; |
5370 | cleanups [cleanupcnt - 1] = w; |
3631 | |
5371 | |
3632 | /* cleanup watchers should never keep a refcount on the loop */ |
5372 | /* cleanup watchers should never keep a refcount on the loop */ |
3633 | ev_unref (EV_A); |
5373 | ev_unref (EV_A); |
3634 | EV_FREQUENT_CHECK; |
5374 | EV_FREQUENT_CHECK; |
3635 | } |
5375 | } |
3636 | |
5376 | |
3637 | void |
5377 | void |
3638 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
5378 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3639 | { |
5379 | { |
3640 | clear_pending (EV_A_ (W)w); |
5380 | clear_pending (EV_A_ (W)w); |
3641 | if (expect_false (!ev_is_active (w))) |
5381 | if (ecb_expect_false (!ev_is_active (w))) |
3642 | return; |
5382 | return; |
3643 | |
5383 | |
3644 | EV_FREQUENT_CHECK; |
5384 | EV_FREQUENT_CHECK; |
3645 | ev_ref (EV_A); |
5385 | ev_ref (EV_A); |
3646 | |
5386 | |
… | |
… | |
3657 | } |
5397 | } |
3658 | #endif |
5398 | #endif |
3659 | |
5399 | |
3660 | #if EV_ASYNC_ENABLE |
5400 | #if EV_ASYNC_ENABLE |
3661 | void |
5401 | void |
3662 | ev_async_start (EV_P_ ev_async *w) |
5402 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3663 | { |
5403 | { |
3664 | if (expect_false (ev_is_active (w))) |
5404 | if (ecb_expect_false (ev_is_active (w))) |
3665 | return; |
5405 | return; |
3666 | |
5406 | |
3667 | w->sent = 0; |
5407 | w->sent = 0; |
3668 | |
5408 | |
3669 | evpipe_init (EV_A); |
5409 | evpipe_init (EV_A); |
3670 | |
5410 | |
3671 | EV_FREQUENT_CHECK; |
5411 | EV_FREQUENT_CHECK; |
3672 | |
5412 | |
3673 | ev_start (EV_A_ (W)w, ++asynccnt); |
5413 | ev_start (EV_A_ (W)w, ++asynccnt); |
3674 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5414 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3675 | asyncs [asynccnt - 1] = w; |
5415 | asyncs [asynccnt - 1] = w; |
3676 | |
5416 | |
3677 | EV_FREQUENT_CHECK; |
5417 | EV_FREQUENT_CHECK; |
3678 | } |
5418 | } |
3679 | |
5419 | |
3680 | void |
5420 | void |
3681 | ev_async_stop (EV_P_ ev_async *w) |
5421 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3682 | { |
5422 | { |
3683 | clear_pending (EV_A_ (W)w); |
5423 | clear_pending (EV_A_ (W)w); |
3684 | if (expect_false (!ev_is_active (w))) |
5424 | if (ecb_expect_false (!ev_is_active (w))) |
3685 | return; |
5425 | return; |
3686 | |
5426 | |
3687 | EV_FREQUENT_CHECK; |
5427 | EV_FREQUENT_CHECK; |
3688 | |
5428 | |
3689 | { |
5429 | { |
… | |
… | |
3697 | |
5437 | |
3698 | EV_FREQUENT_CHECK; |
5438 | EV_FREQUENT_CHECK; |
3699 | } |
5439 | } |
3700 | |
5440 | |
3701 | void |
5441 | void |
3702 | ev_async_send (EV_P_ ev_async *w) |
5442 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3703 | { |
5443 | { |
3704 | w->sent = 1; |
5444 | w->sent = 1; |
3705 | evpipe_write (EV_A_ &async_pending); |
5445 | evpipe_write (EV_A_ &async_pending); |
3706 | } |
5446 | } |
3707 | #endif |
5447 | #endif |
… | |
… | |
3744 | |
5484 | |
3745 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5485 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3746 | } |
5486 | } |
3747 | |
5487 | |
3748 | void |
5488 | void |
3749 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5489 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3750 | { |
5490 | { |
3751 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5491 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3752 | |
|
|
3753 | if (expect_false (!once)) |
|
|
3754 | { |
|
|
3755 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
3756 | return; |
|
|
3757 | } |
|
|
3758 | |
5492 | |
3759 | once->cb = cb; |
5493 | once->cb = cb; |
3760 | once->arg = arg; |
5494 | once->arg = arg; |
3761 | |
5495 | |
3762 | ev_init (&once->io, once_cb_io); |
5496 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3775 | } |
5509 | } |
3776 | |
5510 | |
3777 | /*****************************************************************************/ |
5511 | /*****************************************************************************/ |
3778 | |
5512 | |
3779 | #if EV_WALK_ENABLE |
5513 | #if EV_WALK_ENABLE |
|
|
5514 | ecb_cold |
3780 | void |
5515 | void |
3781 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5516 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3782 | { |
5517 | { |
3783 | int i, j; |
5518 | int i, j; |
3784 | ev_watcher_list *wl, *wn; |
5519 | ev_watcher_list *wl, *wn; |
3785 | |
5520 | |
3786 | if (types & (EV_IO | EV_EMBED)) |
5521 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3829 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5564 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3830 | #endif |
5565 | #endif |
3831 | |
5566 | |
3832 | #if EV_IDLE_ENABLE |
5567 | #if EV_IDLE_ENABLE |
3833 | if (types & EV_IDLE) |
5568 | if (types & EV_IDLE) |
3834 | for (j = NUMPRI; i--; ) |
5569 | for (j = NUMPRI; j--; ) |
3835 | for (i = idlecnt [j]; i--; ) |
5570 | for (i = idlecnt [j]; i--; ) |
3836 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5571 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3837 | #endif |
5572 | #endif |
3838 | |
5573 | |
3839 | #if EV_FORK_ENABLE |
5574 | #if EV_FORK_ENABLE |
… | |
… | |
3892 | |
5627 | |
3893 | #if EV_MULTIPLICITY |
5628 | #if EV_MULTIPLICITY |
3894 | #include "ev_wrap.h" |
5629 | #include "ev_wrap.h" |
3895 | #endif |
5630 | #endif |
3896 | |
5631 | |
3897 | EV_CPP(}) |
|
|
3898 | |
|
|