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 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 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 | # ifndef _WIN32 |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
479 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
480 | # include <sys/select.h> |
383 | # endif |
481 | # endif |
384 | #endif |
482 | #endif |
385 | |
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_setup && __linux && !__alpha |
|
|
497 | # define SYS_io_uring_setup 425 |
|
|
498 | # define SYS_io_uring_enter 426 |
|
|
499 | # define SYS_io_uring_wregister 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 |
|
|
506 | # endif |
|
|
507 | #endif |
|
|
508 | |
386 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
387 | # include <sys/utsname.h> |
|
|
388 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
389 | # include <sys/inotify.h> |
511 | # include <sys/inotify.h> |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
512 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
391 | # ifndef IN_DONT_FOLLOW |
513 | # ifndef IN_DONT_FOLLOW |
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) */ |
459 | |
584 | |
|
|
585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
588 | #define EV_TSTAMP_HUGE \ |
|
|
589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
591 | : 2147483647.) \ |
|
|
592 | |
|
|
593 | #ifndef EV_TS_CONST |
|
|
594 | # define EV_TS_CONST(nv) nv |
|
|
595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
596 | # 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) |
597 | # 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) |
598 | # 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_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
601 | #endif |
462 | |
602 | |
|
|
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
604 | /* ECB.H BEGIN */ |
|
|
605 | /* |
|
|
606 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
607 | * |
|
|
608 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
609 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
610 | * All rights reserved. |
|
|
611 | * |
|
|
612 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
613 | * tion, are permitted provided that the following conditions are met: |
|
|
614 | * |
|
|
615 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
616 | * this list of conditions and the following disclaimer. |
|
|
617 | * |
|
|
618 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
619 | * notice, this list of conditions and the following disclaimer in the |
|
|
620 | * documentation and/or other materials provided with the distribution. |
|
|
621 | * |
|
|
622 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
623 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
624 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
625 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
626 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
627 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
628 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
629 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
630 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
631 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
632 | * |
|
|
633 | * Alternatively, the contents of this file may be used under the terms of |
|
|
634 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
635 | * in which case the provisions of the GPL are applicable instead of |
|
|
636 | * the above. If you wish to allow the use of your version of this file |
|
|
637 | * only under the terms of the GPL and not to allow others to use your |
|
|
638 | * version of this file under the BSD license, indicate your decision |
|
|
639 | * by deleting the provisions above and replace them with the notice |
|
|
640 | * and other provisions required by the GPL. If you do not delete the |
|
|
641 | * provisions above, a recipient may use your version of this file under |
|
|
642 | * either the BSD or the GPL. |
|
|
643 | */ |
|
|
644 | |
|
|
645 | #ifndef ECB_H |
|
|
646 | #define ECB_H |
|
|
647 | |
|
|
648 | /* 16 bits major, 16 bits minor */ |
|
|
649 | #define ECB_VERSION 0x00010006 |
|
|
650 | |
|
|
651 | #ifdef _WIN32 |
|
|
652 | typedef signed char int8_t; |
|
|
653 | typedef unsigned char uint8_t; |
|
|
654 | typedef signed short int16_t; |
|
|
655 | typedef unsigned short uint16_t; |
|
|
656 | typedef signed int int32_t; |
|
|
657 | typedef unsigned int uint32_t; |
463 | #if __GNUC__ >= 4 |
658 | #if __GNUC__ |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
659 | typedef signed long long int64_t; |
465 | # define noinline __attribute__ ((noinline)) |
660 | typedef unsigned long long uint64_t; |
|
|
661 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
662 | typedef signed __int64 int64_t; |
|
|
663 | typedef unsigned __int64 uint64_t; |
|
|
664 | #endif |
|
|
665 | #ifdef _WIN64 |
|
|
666 | #define ECB_PTRSIZE 8 |
|
|
667 | typedef uint64_t uintptr_t; |
|
|
668 | typedef int64_t intptr_t; |
|
|
669 | #else |
|
|
670 | #define ECB_PTRSIZE 4 |
|
|
671 | typedef uint32_t uintptr_t; |
|
|
672 | typedef int32_t intptr_t; |
|
|
673 | #endif |
466 | #else |
674 | #else |
467 | # define expect(expr,value) (expr) |
675 | #include <inttypes.h> |
468 | # define noinline |
676 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
677 | #define ECB_PTRSIZE 8 |
470 | # define inline |
678 | #else |
|
|
679 | #define ECB_PTRSIZE 4 |
|
|
680 | #endif |
471 | # endif |
681 | #endif |
|
|
682 | |
|
|
683 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
684 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
685 | |
|
|
686 | /* work around x32 idiocy by defining proper macros */ |
|
|
687 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
688 | #if _ILP32 |
|
|
689 | #define ECB_AMD64_X32 1 |
|
|
690 | #else |
|
|
691 | #define ECB_AMD64 1 |
472 | #endif |
692 | #endif |
|
|
693 | #endif |
473 | |
694 | |
|
|
695 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
696 | * what their idiot authors think are the "more important" extensions, |
|
|
697 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
698 | * or so. |
|
|
699 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
700 | * an issue with that they should have done it right in the first place. |
|
|
701 | */ |
|
|
702 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
703 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
704 | #else |
|
|
705 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
709 | |
|
|
710 | #if __clang__ && defined __has_builtin |
|
|
711 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
712 | #else |
|
|
713 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | #if __clang__ && defined __has_extension |
|
|
717 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
718 | #else |
|
|
719 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #define ECB_CPP (__cplusplus+0) |
|
|
723 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
724 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
725 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
726 | |
|
|
727 | #if ECB_CPP |
|
|
728 | #define ECB_C 0 |
|
|
729 | #define ECB_STDC_VERSION 0 |
|
|
730 | #else |
|
|
731 | #define ECB_C 1 |
|
|
732 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
736 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
737 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
738 | |
|
|
739 | #if ECB_CPP |
|
|
740 | #define ECB_EXTERN_C extern "C" |
|
|
741 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
742 | #define ECB_EXTERN_C_END } |
|
|
743 | #else |
|
|
744 | #define ECB_EXTERN_C extern |
|
|
745 | #define ECB_EXTERN_C_BEG |
|
|
746 | #define ECB_EXTERN_C_END |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | /*****************************************************************************/ |
|
|
750 | |
|
|
751 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
752 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
753 | |
|
|
754 | #if ECB_NO_THREADS |
|
|
755 | #define ECB_NO_SMP 1 |
|
|
756 | #endif |
|
|
757 | |
|
|
758 | #if ECB_NO_SMP |
|
|
759 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
760 | #endif |
|
|
761 | |
|
|
762 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
763 | #if __xlC__ && ECB_CPP |
|
|
764 | #include <builtins.h> |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #if 1400 <= _MSC_VER |
|
|
768 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
769 | #endif |
|
|
770 | |
|
|
771 | #ifndef ECB_MEMORY_FENCE |
|
|
772 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
773 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
774 | #if __i386 || __i386__ |
|
|
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
776 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
777 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
778 | #elif ECB_GCC_AMD64 |
|
|
779 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
780 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
781 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
782 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
783 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
784 | #elif defined __ARM_ARCH_2__ \ |
|
|
785 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
786 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
787 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
788 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
789 | || defined __ARM_ARCH_5TEJ__ |
|
|
790 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
791 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
792 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
793 | || defined __ARM_ARCH_6T2__ |
|
|
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
795 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
796 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
797 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
798 | #elif __aarch64__ |
|
|
799 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
800 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
801 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
802 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
803 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
804 | #elif defined __s390__ || defined __s390x__ |
|
|
805 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
806 | #elif defined __mips__ |
|
|
807 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
808 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
809 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
810 | #elif defined __alpha__ |
|
|
811 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
812 | #elif defined __hppa__ |
|
|
813 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
814 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
815 | #elif defined __ia64__ |
|
|
816 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
817 | #elif defined __m68k__ |
|
|
818 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
819 | #elif defined __m88k__ |
|
|
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
821 | #elif defined __sh__ |
|
|
822 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
823 | #endif |
|
|
824 | #endif |
|
|
825 | #endif |
|
|
826 | |
|
|
827 | #ifndef ECB_MEMORY_FENCE |
|
|
828 | #if ECB_GCC_VERSION(4,7) |
|
|
829 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
830 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
831 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
832 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
833 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
834 | |
|
|
835 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
836 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
837 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
838 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
839 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
840 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
841 | |
|
|
842 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
843 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
844 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
845 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
846 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
847 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
850 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
851 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
852 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
853 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
854 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
855 | #elif defined _WIN32 |
|
|
856 | #include <WinNT.h> |
|
|
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
859 | #include <mbarrier.h> |
|
|
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
864 | #elif __xlC__ |
|
|
865 | #define ECB_MEMORY_FENCE __sync () |
|
|
866 | #endif |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #ifndef ECB_MEMORY_FENCE |
|
|
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
872 | /* not just C11 atomics and atomic accesses */ |
|
|
873 | #include <stdatomic.h> |
|
|
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
877 | #endif |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #ifndef ECB_MEMORY_FENCE |
|
|
881 | #if !ECB_AVOID_PTHREADS |
|
|
882 | /* |
|
|
883 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
884 | * or failure to find pthread.h, then you should implement |
|
|
885 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
886 | * OR provide pthread.h and link against the posix thread library |
|
|
887 | * of your system. |
|
|
888 | */ |
|
|
889 | #include <pthread.h> |
|
|
890 | #define ECB_NEEDS_PTHREADS 1 |
|
|
891 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
892 | |
|
|
893 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
894 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
895 | #endif |
|
|
896 | #endif |
|
|
897 | |
|
|
898 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
899 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
900 | #endif |
|
|
901 | |
|
|
902 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
903 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
907 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
908 | #endif |
|
|
909 | |
|
|
910 | /*****************************************************************************/ |
|
|
911 | |
|
|
912 | #if ECB_CPP |
|
|
913 | #define ecb_inline static inline |
|
|
914 | #elif ECB_GCC_VERSION(2,5) |
|
|
915 | #define ecb_inline static __inline__ |
|
|
916 | #elif ECB_C99 |
|
|
917 | #define ecb_inline static inline |
|
|
918 | #else |
|
|
919 | #define ecb_inline static |
|
|
920 | #endif |
|
|
921 | |
|
|
922 | #if ECB_GCC_VERSION(3,3) |
|
|
923 | #define ecb_restrict __restrict__ |
|
|
924 | #elif ECB_C99 |
|
|
925 | #define ecb_restrict restrict |
|
|
926 | #else |
|
|
927 | #define ecb_restrict |
|
|
928 | #endif |
|
|
929 | |
|
|
930 | typedef int ecb_bool; |
|
|
931 | |
|
|
932 | #define ECB_CONCAT_(a, b) a ## b |
|
|
933 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
934 | #define ECB_STRINGIFY_(a) # a |
|
|
935 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
936 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
937 | |
|
|
938 | #define ecb_function_ ecb_inline |
|
|
939 | |
|
|
940 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
941 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
942 | #else |
|
|
943 | #define ecb_attribute(attrlist) |
|
|
944 | #endif |
|
|
945 | |
|
|
946 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
947 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
948 | #else |
|
|
949 | /* possible C11 impl for integral types |
|
|
950 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
951 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
952 | |
|
|
953 | #define ecb_is_constant(expr) 0 |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
957 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
958 | #else |
|
|
959 | #define ecb_expect(expr,value) (expr) |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
963 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
964 | #else |
|
|
965 | #define ecb_prefetch(addr,rw,locality) |
|
|
966 | #endif |
|
|
967 | |
|
|
968 | /* no emulation for ecb_decltype */ |
|
|
969 | #if ECB_CPP11 |
|
|
970 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
971 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
972 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
973 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
974 | #define ecb_decltype(x) __typeof__ (x) |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if _MSC_VER >= 1300 |
|
|
978 | #define ecb_deprecated __declspec (deprecated) |
|
|
979 | #else |
|
|
980 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
981 | #endif |
|
|
982 | |
|
|
983 | #if _MSC_VER >= 1500 |
|
|
984 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
985 | #elif ECB_GCC_VERSION(4,5) |
|
|
986 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
987 | #else |
|
|
988 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | #if _MSC_VER >= 1400 |
|
|
992 | #define ecb_noinline __declspec (noinline) |
|
|
993 | #else |
|
|
994 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
995 | #endif |
|
|
996 | |
|
|
997 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
998 | #define ecb_const ecb_attribute ((__const__)) |
|
|
999 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
1000 | |
|
|
1001 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1002 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
1003 | #define ecb_noreturn _Noreturn |
|
|
1004 | #elif ECB_CPP11 |
|
|
1005 | #define ecb_noreturn [[noreturn]] |
|
|
1006 | #elif _MSC_VER >= 1200 |
|
|
1007 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1008 | #define ecb_noreturn __declspec (noreturn) |
|
|
1009 | #else |
|
|
1010 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
1011 | #endif |
|
|
1012 | |
|
|
1013 | #if ECB_GCC_VERSION(4,3) |
|
|
1014 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
1015 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
1016 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
1017 | #else |
|
|
1018 | #define ecb_artificial |
|
|
1019 | #define ecb_hot |
|
|
1020 | #define ecb_cold |
|
|
1021 | #endif |
|
|
1022 | |
|
|
1023 | /* put around conditional expressions if you are very sure that the */ |
|
|
1024 | /* expression is mostly true or mostly false. note that these return */ |
|
|
1025 | /* booleans, not the expression. */ |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
1026 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
1027 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1028 | /* for compatibility to the rest of the world */ |
|
|
1029 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1030 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1031 | |
|
|
1032 | /* count trailing zero bits and count # of one bits */ |
|
|
1033 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1034 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1035 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1036 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1037 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1038 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1039 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1040 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1041 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1042 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1043 | /* no popcountll */ |
|
|
1044 | #else |
|
|
1045 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1046 | ecb_function_ ecb_const int |
|
|
1047 | ecb_ctz32 (uint32_t x) |
|
|
1048 | { |
|
|
1049 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1050 | unsigned long r; |
|
|
1051 | _BitScanForward (&r, x); |
|
|
1052 | return (int)r; |
|
|
1053 | #else |
|
|
1054 | int r = 0; |
|
|
1055 | |
|
|
1056 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1057 | |
|
|
1058 | #if ECB_branchless_on_i386 |
|
|
1059 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1060 | r += !!(x & 0xcccccccc) << 1; |
|
|
1061 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1062 | r += !!(x & 0xff00ff00) << 3; |
|
|
1063 | r += !!(x & 0xffff0000) << 4; |
|
|
1064 | #else |
|
|
1065 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1066 | if (x & 0xcccccccc) r += 2; |
|
|
1067 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1068 | if (x & 0xff00ff00) r += 8; |
|
|
1069 | if (x & 0xffff0000) r += 16; |
|
|
1070 | #endif |
|
|
1071 | |
|
|
1072 | return r; |
|
|
1073 | #endif |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1077 | ecb_function_ ecb_const int |
|
|
1078 | ecb_ctz64 (uint64_t x) |
|
|
1079 | { |
|
|
1080 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1081 | unsigned long r; |
|
|
1082 | _BitScanForward64 (&r, x); |
|
|
1083 | return (int)r; |
|
|
1084 | #else |
|
|
1085 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1086 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1087 | #endif |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1091 | ecb_function_ ecb_const int |
|
|
1092 | ecb_popcount32 (uint32_t x) |
|
|
1093 | { |
|
|
1094 | x -= (x >> 1) & 0x55555555; |
|
|
1095 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1096 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1097 | x *= 0x01010101; |
|
|
1098 | |
|
|
1099 | return x >> 24; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1103 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1104 | { |
|
|
1105 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1106 | unsigned long r; |
|
|
1107 | _BitScanReverse (&r, x); |
|
|
1108 | return (int)r; |
|
|
1109 | #else |
|
|
1110 | int r = 0; |
|
|
1111 | |
|
|
1112 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1113 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1114 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1115 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1116 | if (x >> 1) { r += 1; } |
|
|
1117 | |
|
|
1118 | return r; |
|
|
1119 | #endif |
|
|
1120 | } |
|
|
1121 | |
|
|
1122 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1123 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1124 | { |
|
|
1125 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1126 | unsigned long r; |
|
|
1127 | _BitScanReverse64 (&r, x); |
|
|
1128 | return (int)r; |
|
|
1129 | #else |
|
|
1130 | int r = 0; |
|
|
1131 | |
|
|
1132 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1133 | |
|
|
1134 | return r + ecb_ld32 (x); |
|
|
1135 | #endif |
|
|
1136 | } |
|
|
1137 | #endif |
|
|
1138 | |
|
|
1139 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1140 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1141 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1142 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1143 | |
|
|
1144 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1145 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1146 | { |
|
|
1147 | return ( (x * 0x0802U & 0x22110U) |
|
|
1148 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1152 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1153 | { |
|
|
1154 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1155 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1156 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1157 | x = ( x >> 8 ) | ( x << 8); |
|
|
1158 | |
|
|
1159 | return x; |
|
|
1160 | } |
|
|
1161 | |
|
|
1162 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1163 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1164 | { |
|
|
1165 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1166 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1167 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1168 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1169 | x = ( x >> 16 ) | ( x << 16); |
|
|
1170 | |
|
|
1171 | return x; |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1175 | /* so for this version we are lazy */ |
|
|
1176 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1177 | ecb_function_ ecb_const int |
|
|
1178 | ecb_popcount64 (uint64_t x) |
|
|
1179 | { |
|
|
1180 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1184 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1185 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1186 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1187 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1188 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1189 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1190 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1191 | |
|
|
1192 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1193 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1194 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1195 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1196 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1197 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1198 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1199 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1200 | |
|
|
1201 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1202 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1203 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1204 | #else |
|
|
1205 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1206 | #endif |
|
|
1207 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1208 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1209 | #elif _MSC_VER |
|
|
1210 | #include <stdlib.h> |
|
|
1211 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1212 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1213 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1214 | #else |
|
|
1215 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1216 | ecb_function_ ecb_const uint16_t |
|
|
1217 | ecb_bswap16 (uint16_t x) |
|
|
1218 | { |
|
|
1219 | return ecb_rotl16 (x, 8); |
|
|
1220 | } |
|
|
1221 | |
|
|
1222 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1223 | ecb_function_ ecb_const uint32_t |
|
|
1224 | ecb_bswap32 (uint32_t x) |
|
|
1225 | { |
|
|
1226 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1230 | ecb_function_ ecb_const uint64_t |
|
|
1231 | ecb_bswap64 (uint64_t x) |
|
|
1232 | { |
|
|
1233 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1234 | } |
|
|
1235 | #endif |
|
|
1236 | |
|
|
1237 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1238 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1239 | #else |
|
|
1240 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1241 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1242 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1246 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1247 | |
|
|
1248 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1249 | ecb_inline ecb_const uint32_t |
|
|
1250 | ecb_byteorder_helper (void) |
|
|
1251 | { |
|
|
1252 | /* the union code still generates code under pressure in gcc, */ |
|
|
1253 | /* but less than using pointers, and always seems to */ |
|
|
1254 | /* successfully return a constant. */ |
|
|
1255 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1256 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1257 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1258 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1259 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1260 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1261 | return 0x44332211; |
|
|
1262 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1263 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1264 | #define ECB_BIG_ENDIAN 1 |
|
|
1265 | return 0x11223344; |
|
|
1266 | #else |
|
|
1267 | union |
|
|
1268 | { |
|
|
1269 | uint8_t c[4]; |
|
|
1270 | uint32_t u; |
|
|
1271 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1272 | return u.u; |
|
|
1273 | #endif |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1277 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1278 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1279 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1280 | |
|
|
1281 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1282 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1283 | #else |
|
|
1284 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | #if ECB_CPP |
|
|
1288 | template<typename T> |
|
|
1289 | static inline T ecb_div_rd (T val, T div) |
|
|
1290 | { |
|
|
1291 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1292 | } |
|
|
1293 | template<typename T> |
|
|
1294 | static inline T ecb_div_ru (T val, T div) |
|
|
1295 | { |
|
|
1296 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1297 | } |
|
|
1298 | #else |
|
|
1299 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1300 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1301 | #endif |
|
|
1302 | |
|
|
1303 | #if ecb_cplusplus_does_not_suck |
|
|
1304 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1305 | template<typename T, int N> |
|
|
1306 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1307 | { |
|
|
1308 | return N; |
|
|
1309 | } |
|
|
1310 | #else |
|
|
1311 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1312 | #endif |
|
|
1313 | |
|
|
1314 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1315 | ecb_function_ ecb_const uint32_t |
|
|
1316 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1317 | { |
|
|
1318 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1319 | int e = (x >> 10) & 0x001f; |
|
|
1320 | unsigned int m = x & 0x03ff; |
|
|
1321 | |
|
|
1322 | if (ecb_expect_false (e == 31)) |
|
|
1323 | /* infinity or NaN */ |
|
|
1324 | e = 255 - (127 - 15); |
|
|
1325 | else if (ecb_expect_false (!e)) |
|
|
1326 | { |
|
|
1327 | if (ecb_expect_true (!m)) |
|
|
1328 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1329 | e = 0 - (127 - 15); |
|
|
1330 | else |
|
|
1331 | { |
|
|
1332 | /* subnormal, renormalise */ |
|
|
1333 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1334 | |
|
|
1335 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1336 | e -= s - 1; |
|
|
1337 | } |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1341 | e += 127 - 15; |
|
|
1342 | |
|
|
1343 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1347 | ecb_function_ ecb_const uint16_t |
|
|
1348 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1349 | { |
|
|
1350 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1351 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1352 | unsigned int m = x & 0x007fffff; |
|
|
1353 | |
|
|
1354 | x &= 0x7fffffff; |
|
|
1355 | |
|
|
1356 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1357 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1358 | { |
|
|
1359 | /* mantissa round-to-even */ |
|
|
1360 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1361 | |
|
|
1362 | /* handle overflow */ |
|
|
1363 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1364 | { |
|
|
1365 | m >>= 1; |
|
|
1366 | e += 1; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* handle large numbers and infinity */ |
|
|
1373 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1374 | return s | 0x7c00; |
|
|
1375 | |
|
|
1376 | /* handle zero, subnormals and small numbers */ |
|
|
1377 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1378 | { |
|
|
1379 | /* zero */ |
|
|
1380 | if (ecb_expect_true (!x)) |
|
|
1381 | return s; |
|
|
1382 | |
|
|
1383 | /* handle subnormals */ |
|
|
1384 | |
|
|
1385 | /* too small, will be zero */ |
|
|
1386 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1387 | return s; |
|
|
1388 | |
|
|
1389 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1390 | |
|
|
1391 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1392 | { |
|
|
1393 | unsigned int bits = 14 - e; |
|
|
1394 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1395 | unsigned int even = (m >> bits) & 1; |
|
|
1396 | |
|
|
1397 | /* if this overflows, we will end up with a normalised number */ |
|
|
1398 | m = (m + half + even) >> bits; |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | return s | m; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1405 | m >>= 13; |
|
|
1406 | |
|
|
1407 | return s | 0x7c00 | m | !m; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | /*******************************************************************************/ |
|
|
1411 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1412 | |
|
|
1413 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1414 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1415 | #if 0 \ |
|
|
1416 | || __i386 || __i386__ \ |
|
|
1417 | || ECB_GCC_AMD64 \ |
|
|
1418 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1419 | || defined __s390__ || defined __s390x__ \ |
|
|
1420 | || defined __mips__ \ |
|
|
1421 | || defined __alpha__ \ |
|
|
1422 | || defined __hppa__ \ |
|
|
1423 | || defined __ia64__ \ |
|
|
1424 | || defined __m68k__ \ |
|
|
1425 | || defined __m88k__ \ |
|
|
1426 | || defined __sh__ \ |
|
|
1427 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1428 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1429 | || defined __aarch64__ |
|
|
1430 | #define ECB_STDFP 1 |
|
|
1431 | #include <string.h> /* for memcpy */ |
|
|
1432 | #else |
|
|
1433 | #define ECB_STDFP 0 |
|
|
1434 | #endif |
|
|
1435 | |
|
|
1436 | #ifndef ECB_NO_LIBM |
|
|
1437 | |
|
|
1438 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1439 | |
|
|
1440 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1441 | #ifdef INFINITY |
|
|
1442 | #define ECB_INFINITY INFINITY |
|
|
1443 | #else |
|
|
1444 | #define ECB_INFINITY HUGE_VAL |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | #ifdef NAN |
|
|
1448 | #define ECB_NAN NAN |
|
|
1449 | #else |
|
|
1450 | #define ECB_NAN ECB_INFINITY |
|
|
1451 | #endif |
|
|
1452 | |
|
|
1453 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1454 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1455 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1456 | #else |
|
|
1457 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1458 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1459 | #endif |
|
|
1460 | |
|
|
1461 | /* convert a float to ieee single/binary32 */ |
|
|
1462 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1463 | ecb_function_ ecb_const uint32_t |
|
|
1464 | ecb_float_to_binary32 (float x) |
|
|
1465 | { |
|
|
1466 | uint32_t r; |
|
|
1467 | |
|
|
1468 | #if ECB_STDFP |
|
|
1469 | memcpy (&r, &x, 4); |
|
|
1470 | #else |
|
|
1471 | /* slow emulation, works for anything but -0 */ |
|
|
1472 | uint32_t m; |
|
|
1473 | int e; |
|
|
1474 | |
|
|
1475 | if (x == 0e0f ) return 0x00000000U; |
|
|
1476 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1477 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1478 | if (x != x ) return 0x7fbfffffU; |
|
|
1479 | |
|
|
1480 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1481 | |
|
|
1482 | r = m & 0x80000000U; |
|
|
1483 | |
|
|
1484 | if (r) |
|
|
1485 | m = -m; |
|
|
1486 | |
|
|
1487 | if (e <= -126) |
|
|
1488 | { |
|
|
1489 | m &= 0xffffffU; |
|
|
1490 | m >>= (-125 - e); |
|
|
1491 | e = -126; |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | r |= (e + 126) << 23; |
|
|
1495 | r |= m & 0x7fffffU; |
|
|
1496 | #endif |
|
|
1497 | |
|
|
1498 | return r; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | /* converts an ieee single/binary32 to a float */ |
|
|
1502 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1503 | ecb_function_ ecb_const float |
|
|
1504 | ecb_binary32_to_float (uint32_t x) |
|
|
1505 | { |
|
|
1506 | float r; |
|
|
1507 | |
|
|
1508 | #if ECB_STDFP |
|
|
1509 | memcpy (&r, &x, 4); |
|
|
1510 | #else |
|
|
1511 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1512 | int neg = x >> 31; |
|
|
1513 | int e = (x >> 23) & 0xffU; |
|
|
1514 | |
|
|
1515 | x &= 0x7fffffU; |
|
|
1516 | |
|
|
1517 | if (e) |
|
|
1518 | x |= 0x800000U; |
|
|
1519 | else |
|
|
1520 | e = 1; |
|
|
1521 | |
|
|
1522 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1523 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1524 | |
|
|
1525 | r = neg ? -r : r; |
|
|
1526 | #endif |
|
|
1527 | |
|
|
1528 | return r; |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | /* convert a double to ieee double/binary64 */ |
|
|
1532 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1533 | ecb_function_ ecb_const uint64_t |
|
|
1534 | ecb_double_to_binary64 (double x) |
|
|
1535 | { |
|
|
1536 | uint64_t r; |
|
|
1537 | |
|
|
1538 | #if ECB_STDFP |
|
|
1539 | memcpy (&r, &x, 8); |
|
|
1540 | #else |
|
|
1541 | /* slow emulation, works for anything but -0 */ |
|
|
1542 | uint64_t m; |
|
|
1543 | int e; |
|
|
1544 | |
|
|
1545 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1546 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1547 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1548 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1549 | |
|
|
1550 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1551 | |
|
|
1552 | r = m & 0x8000000000000000;; |
|
|
1553 | |
|
|
1554 | if (r) |
|
|
1555 | m = -m; |
|
|
1556 | |
|
|
1557 | if (e <= -1022) |
|
|
1558 | { |
|
|
1559 | m &= 0x1fffffffffffffU; |
|
|
1560 | m >>= (-1021 - e); |
|
|
1561 | e = -1022; |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1565 | r |= m & 0xfffffffffffffU; |
|
|
1566 | #endif |
|
|
1567 | |
|
|
1568 | return r; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | /* converts an ieee double/binary64 to a double */ |
|
|
1572 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1573 | ecb_function_ ecb_const double |
|
|
1574 | ecb_binary64_to_double (uint64_t x) |
|
|
1575 | { |
|
|
1576 | double r; |
|
|
1577 | |
|
|
1578 | #if ECB_STDFP |
|
|
1579 | memcpy (&r, &x, 8); |
|
|
1580 | #else |
|
|
1581 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1582 | int neg = x >> 63; |
|
|
1583 | int e = (x >> 52) & 0x7ffU; |
|
|
1584 | |
|
|
1585 | x &= 0xfffffffffffffU; |
|
|
1586 | |
|
|
1587 | if (e) |
|
|
1588 | x |= 0x10000000000000U; |
|
|
1589 | else |
|
|
1590 | e = 1; |
|
|
1591 | |
|
|
1592 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1593 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1594 | |
|
|
1595 | r = neg ? -r : r; |
|
|
1596 | #endif |
|
|
1597 | |
|
|
1598 | return r; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | /* convert a float to ieee half/binary16 */ |
|
|
1602 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1603 | ecb_function_ ecb_const uint16_t |
|
|
1604 | ecb_float_to_binary16 (float x) |
|
|
1605 | { |
|
|
1606 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | /* convert an ieee half/binary16 to float */ |
|
|
1610 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1611 | ecb_function_ ecb_const float |
|
|
1612 | ecb_binary16_to_float (uint16_t x) |
|
|
1613 | { |
|
|
1614 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | #endif |
|
|
1618 | |
|
|
1619 | #endif |
|
|
1620 | |
|
|
1621 | /* ECB.H END */ |
|
|
1622 | |
|
|
1623 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1624 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1625 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1626 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1627 | * libev, in which cases the memory fences become nops. |
|
|
1628 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1629 | * which will then provide the memory fences. |
|
|
1630 | */ |
|
|
1631 | # error "memory fences not defined for your architecture, please report" |
|
|
1632 | #endif |
|
|
1633 | |
|
|
1634 | #ifndef ECB_MEMORY_FENCE |
|
|
1635 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1636 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1637 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1638 | #endif |
|
|
1639 | |
476 | #define inline_size static inline |
1640 | #define inline_size ecb_inline |
477 | |
1641 | |
478 | #if EV_FEATURE_CODE |
1642 | #if EV_FEATURE_CODE |
479 | # define inline_speed static inline |
1643 | # define inline_speed ecb_inline |
480 | #else |
1644 | #else |
481 | # define inline_speed static noinline |
1645 | # define inline_speed ecb_noinline static |
482 | #endif |
1646 | #endif |
|
|
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
483 | |
1713 | |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
485 | |
1715 | |
486 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
487 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
488 | #else |
1718 | #else |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
490 | #endif |
1720 | #endif |
491 | |
1721 | |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
494 | |
1723 | |
495 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
496 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
497 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
498 | |
1727 | |
… | |
… | |
523 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
524 | #endif |
1753 | #endif |
525 | |
1754 | |
526 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
527 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
|
|
1761 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1762 | |
|
|
1763 | #if EV_USE_FLOOR |
|
|
1764 | # include <math.h> |
|
|
1765 | # define ev_floor(v) floor (v) |
|
|
1766 | #else |
|
|
1767 | |
|
|
1768 | #include <float.h> |
|
|
1769 | |
|
|
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1771 | ecb_noinline |
|
|
1772 | static ev_tstamp |
|
|
1773 | ev_floor (ev_tstamp v) |
|
|
1774 | { |
|
|
1775 | /* the choice of shift factor is not terribly important */ |
|
|
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1778 | #else |
|
|
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1780 | #endif |
|
|
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1791 | if (ecb_expect_false (v >= shift)) |
|
|
1792 | { |
|
|
1793 | ev_tstamp f; |
|
|
1794 | |
|
|
1795 | if (v == v - 1.) |
|
|
1796 | return v; /* very large numbers are assumed to be integer */ |
|
|
1797 | |
|
|
1798 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1799 | return f + ev_floor (v - f); |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | /* fits into an unsigned long */ |
|
|
1803 | return (unsigned long)v; |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | #endif |
|
|
1807 | |
|
|
1808 | /*****************************************************************************/ |
|
|
1809 | |
|
|
1810 | #ifdef __linux |
|
|
1811 | # include <sys/utsname.h> |
|
|
1812 | #endif |
|
|
1813 | |
|
|
1814 | ecb_noinline ecb_cold |
528 | static unsigned int noinline |
1815 | static unsigned int |
529 | ev_linux_version (void) |
1816 | ev_linux_version (void) |
530 | { |
1817 | { |
531 | #ifdef __linux |
1818 | #ifdef __linux |
|
|
1819 | unsigned int v = 0; |
532 | struct utsname buf; |
1820 | struct utsname buf; |
533 | unsigned int v; |
|
|
534 | int i; |
1821 | int i; |
535 | char *p = buf.release; |
1822 | char *p = buf.release; |
536 | |
1823 | |
537 | if (uname (&buf)) |
1824 | if (uname (&buf)) |
538 | return 0; |
1825 | return 0; |
… | |
… | |
562 | } |
1849 | } |
563 | |
1850 | |
564 | /*****************************************************************************/ |
1851 | /*****************************************************************************/ |
565 | |
1852 | |
566 | #if EV_AVOID_STDIO |
1853 | #if EV_AVOID_STDIO |
567 | static void noinline |
1854 | ecb_noinline ecb_cold |
|
|
1855 | static void |
568 | ev_printerr (const char *msg) |
1856 | ev_printerr (const char *msg) |
569 | { |
1857 | { |
570 | write (STDERR_FILENO, msg, strlen (msg)); |
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
571 | } |
1859 | } |
572 | #endif |
1860 | #endif |
573 | |
1861 | |
574 | static void (*syserr_cb)(const char *msg); |
1862 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
575 | |
1863 | |
|
|
1864 | ecb_cold |
576 | void |
1865 | void |
577 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
578 | { |
1867 | { |
579 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
580 | } |
1869 | } |
581 | |
1870 | |
582 | static void noinline |
1871 | ecb_noinline ecb_cold |
|
|
1872 | static void |
583 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
584 | { |
1874 | { |
585 | if (!msg) |
1875 | if (!msg) |
586 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
587 | |
1877 | |
588 | if (syserr_cb) |
1878 | if (syserr_cb) |
589 | syserr_cb (msg); |
1879 | syserr_cb (msg); |
590 | else |
1880 | else |
591 | { |
1881 | { |
592 | #if EV_AVOID_STDIO |
1882 | #if EV_AVOID_STDIO |
593 | const char *err = strerror (errno); |
|
|
594 | |
|
|
595 | ev_printerr (msg); |
1883 | ev_printerr (msg); |
596 | ev_printerr (": "); |
1884 | ev_printerr (": "); |
597 | ev_printerr (err); |
1885 | ev_printerr (strerror (errno)); |
598 | ev_printerr ("\n"); |
1886 | ev_printerr ("\n"); |
599 | #else |
1887 | #else |
600 | perror (msg); |
1888 | perror (msg); |
601 | #endif |
1889 | #endif |
602 | abort (); |
1890 | abort (); |
603 | } |
1891 | } |
604 | } |
1892 | } |
605 | |
1893 | |
606 | static void * |
1894 | static void * |
607 | ev_realloc_emul (void *ptr, long size) |
1895 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
608 | { |
1896 | { |
609 | #if __GLIBC__ |
|
|
610 | return realloc (ptr, size); |
|
|
611 | #else |
|
|
612 | /* some systems, notably openbsd and darwin, fail to properly |
1897 | /* some systems, notably openbsd and darwin, fail to properly |
613 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1898 | * implement realloc (x, 0) (as required by both ansi c-89 and |
614 | * the single unix specification, so work around them here. |
1899 | * the single unix specification, so work around them here. |
|
|
1900 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1901 | * despite documenting it otherwise. |
615 | */ |
1902 | */ |
616 | |
1903 | |
617 | if (size) |
1904 | if (size) |
618 | return realloc (ptr, size); |
1905 | return realloc (ptr, size); |
619 | |
1906 | |
620 | free (ptr); |
1907 | free (ptr); |
621 | return 0; |
1908 | return 0; |
622 | #endif |
|
|
623 | } |
1909 | } |
624 | |
1910 | |
625 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1911 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
626 | |
1912 | |
|
|
1913 | ecb_cold |
627 | void |
1914 | void |
628 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1915 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
629 | { |
1916 | { |
630 | alloc = cb; |
1917 | alloc = cb; |
631 | } |
1918 | } |
632 | |
1919 | |
633 | inline_speed void * |
1920 | inline_speed void * |
… | |
… | |
636 | ptr = alloc (ptr, size); |
1923 | ptr = alloc (ptr, size); |
637 | |
1924 | |
638 | if (!ptr && size) |
1925 | if (!ptr && size) |
639 | { |
1926 | { |
640 | #if EV_AVOID_STDIO |
1927 | #if EV_AVOID_STDIO |
641 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1928 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
642 | #else |
1929 | #else |
643 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1930 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
644 | #endif |
1931 | #endif |
645 | abort (); |
1932 | abort (); |
646 | } |
1933 | } |
647 | |
1934 | |
648 | return ptr; |
1935 | return ptr; |
… | |
… | |
660 | typedef struct |
1947 | typedef struct |
661 | { |
1948 | { |
662 | WL head; |
1949 | WL head; |
663 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
664 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
665 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
666 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
667 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
668 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | #endif |
1956 | #endif |
670 | #if EV_SELECT_IS_WINSOCKET |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
671 | SOCKET handle; |
1958 | SOCKET handle; |
|
|
1959 | #endif |
|
|
1960 | #if EV_USE_IOCP |
|
|
1961 | OVERLAPPED or, ow; |
672 | #endif |
1962 | #endif |
673 | } ANFD; |
1963 | } ANFD; |
674 | |
1964 | |
675 | /* stores the pending event set for a given watcher */ |
1965 | /* stores the pending event set for a given watcher */ |
676 | typedef struct |
1966 | typedef struct |
… | |
… | |
718 | #undef VAR |
2008 | #undef VAR |
719 | }; |
2009 | }; |
720 | #include "ev_wrap.h" |
2010 | #include "ev_wrap.h" |
721 | |
2011 | |
722 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
723 | struct ev_loop *ev_default_loop_ptr; |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
724 | |
2014 | |
725 | #else |
2015 | #else |
726 | |
2016 | |
727 | ev_tstamp ev_rt_now; |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
728 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
729 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
730 | #undef VAR |
2020 | #undef VAR |
731 | |
2021 | |
732 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
733 | |
2023 | |
734 | #endif |
2024 | #endif |
735 | |
2025 | |
736 | #if EV_FEATURE_API |
2026 | #if EV_FEATURE_API |
737 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2027 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
738 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2028 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
739 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
740 | #else |
2030 | #else |
741 | # define EV_RELEASE_CB (void)0 |
2031 | # define EV_RELEASE_CB (void)0 |
742 | # define EV_ACQUIRE_CB (void)0 |
2032 | # define EV_ACQUIRE_CB (void)0 |
743 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
747 | |
2037 | |
748 | /*****************************************************************************/ |
2038 | /*****************************************************************************/ |
749 | |
2039 | |
750 | #ifndef EV_HAVE_EV_TIME |
2040 | #ifndef EV_HAVE_EV_TIME |
751 | ev_tstamp |
2041 | ev_tstamp |
752 | ev_time (void) |
2042 | ev_time (void) EV_NOEXCEPT |
753 | { |
2043 | { |
754 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
755 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
756 | { |
2046 | { |
757 | struct timespec ts; |
2047 | struct timespec ts; |
758 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
759 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
760 | } |
2050 | } |
761 | #endif |
2051 | #endif |
762 | |
2052 | |
|
|
2053 | { |
763 | struct timeval tv; |
2054 | struct timeval tv; |
764 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
765 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
766 | } |
2058 | } |
767 | #endif |
2059 | #endif |
768 | |
2060 | |
769 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
770 | get_clock (void) |
2062 | get_clock (void) |
771 | { |
2063 | { |
772 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
773 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
774 | { |
2066 | { |
775 | struct timespec ts; |
2067 | struct timespec ts; |
776 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
777 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
778 | } |
2070 | } |
779 | #endif |
2071 | #endif |
780 | |
2072 | |
781 | return ev_time (); |
2073 | return ev_time (); |
782 | } |
2074 | } |
783 | |
2075 | |
784 | #if EV_MULTIPLICITY |
2076 | #if EV_MULTIPLICITY |
785 | ev_tstamp |
2077 | ev_tstamp |
786 | ev_now (EV_P) |
2078 | ev_now (EV_P) EV_NOEXCEPT |
787 | { |
2079 | { |
788 | return ev_rt_now; |
2080 | return ev_rt_now; |
789 | } |
2081 | } |
790 | #endif |
2082 | #endif |
791 | |
2083 | |
792 | void |
2084 | void |
793 | ev_sleep (ev_tstamp delay) |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
794 | { |
2086 | { |
795 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
796 | { |
2088 | { |
797 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
798 | struct timespec ts; |
2090 | struct timespec ts; |
799 | |
2091 | |
800 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
801 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
802 | #elif defined(_WIN32) |
2094 | #elif defined _WIN32 |
|
|
2095 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2096 | /* compared to select (µs) or nanosleep (ns) */ |
803 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
804 | #else |
2098 | #else |
805 | struct timeval tv; |
2099 | struct timeval tv; |
806 | |
2100 | |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
808 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
826 | |
2120 | |
827 | do |
2121 | do |
828 | ncur <<= 1; |
2122 | ncur <<= 1; |
829 | while (cnt > ncur); |
2123 | while (cnt > ncur); |
830 | |
2124 | |
831 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2125 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
832 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2126 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
833 | { |
2127 | { |
834 | ncur *= elem; |
2128 | ncur *= elem; |
835 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2129 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
836 | ncur = ncur - sizeof (void *) * 4; |
2130 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
838 | } |
2132 | } |
839 | |
2133 | |
840 | return ncur; |
2134 | return ncur; |
841 | } |
2135 | } |
842 | |
2136 | |
843 | static noinline void * |
2137 | ecb_noinline ecb_cold |
|
|
2138 | static void * |
844 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
845 | { |
2140 | { |
846 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
847 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
848 | } |
2143 | } |
849 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
850 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
851 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
852 | |
2149 | |
853 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
854 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
855 | { \ |
2152 | { \ |
856 | int ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
857 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
858 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
859 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
860 | } |
2157 | } |
861 | |
2158 | |
862 | #if 0 |
2159 | #if 0 |
863 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
864 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
873 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2170 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
874 | |
2171 | |
875 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
876 | |
2173 | |
877 | /* dummy callback for pending events */ |
2174 | /* dummy callback for pending events */ |
878 | static void noinline |
2175 | ecb_noinline |
|
|
2176 | static void |
879 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
880 | { |
2178 | { |
881 | } |
2179 | } |
882 | |
2180 | |
883 | void noinline |
2181 | ecb_noinline |
|
|
2182 | void |
884 | ev_feed_event (EV_P_ void *w, int revents) |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
885 | { |
2184 | { |
886 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
887 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
888 | |
2187 | |
889 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
890 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
891 | else |
2190 | else |
892 | { |
2191 | { |
893 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
894 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
895 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
896 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
897 | } |
2196 | } |
|
|
2197 | |
|
|
2198 | pendingpri = NUMPRI - 1; |
898 | } |
2199 | } |
899 | |
2200 | |
900 | inline_speed void |
2201 | inline_speed void |
901 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
902 | { |
2203 | { |
903 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
904 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
905 | } |
2206 | } |
906 | |
2207 | |
907 | inline_size void |
2208 | inline_size void |
908 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
943 | inline_speed void |
2244 | inline_speed void |
944 | fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
945 | { |
2246 | { |
946 | ANFD *anfd = anfds + fd; |
2247 | ANFD *anfd = anfds + fd; |
947 | |
2248 | |
948 | if (expect_true (!anfd->reify)) |
2249 | if (ecb_expect_true (!anfd->reify)) |
949 | fd_event_nocheck (EV_A_ fd, revents); |
2250 | fd_event_nocheck (EV_A_ fd, revents); |
950 | } |
2251 | } |
951 | |
2252 | |
952 | void |
2253 | void |
953 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
954 | { |
2255 | { |
955 | if (fd >= 0 && fd < anfdmax) |
2256 | if (fd >= 0 && fd < anfdmax) |
956 | fd_event_nocheck (EV_A_ fd, revents); |
2257 | fd_event_nocheck (EV_A_ fd, revents); |
957 | } |
2258 | } |
958 | |
2259 | |
… | |
… | |
961 | inline_size void |
2262 | inline_size void |
962 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
963 | { |
2264 | { |
964 | int i; |
2265 | int i; |
965 | |
2266 | |
|
|
2267 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2268 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2269 | { |
|
|
2270 | int fd = fdchanges [i]; |
|
|
2271 | ANFD *anfd = anfds + fd; |
|
|
2272 | |
|
|
2273 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2274 | { |
|
|
2275 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2276 | |
|
|
2277 | if (handle != anfd->handle) |
|
|
2278 | { |
|
|
2279 | unsigned long arg; |
|
|
2280 | |
|
|
2281 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2282 | |
|
|
2283 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2284 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2285 | anfd->events = 0; |
|
|
2286 | anfd->handle = handle; |
|
|
2287 | } |
|
|
2288 | } |
|
|
2289 | } |
|
|
2290 | #endif |
|
|
2291 | |
966 | for (i = 0; i < fdchangecnt; ++i) |
2292 | for (i = 0; i < fdchangecnt; ++i) |
967 | { |
2293 | { |
968 | int fd = fdchanges [i]; |
2294 | int fd = fdchanges [i]; |
969 | ANFD *anfd = anfds + fd; |
2295 | ANFD *anfd = anfds + fd; |
970 | ev_io *w; |
2296 | ev_io *w; |
971 | |
2297 | |
972 | unsigned char o_events = anfd->events; |
2298 | unsigned char o_events = anfd->events; |
973 | unsigned char o_reify = anfd->reify; |
2299 | unsigned char o_reify = anfd->reify; |
974 | |
2300 | |
975 | anfd->reify = 0; |
2301 | anfd->reify = 0; |
976 | |
2302 | |
977 | #if EV_SELECT_IS_WINSOCKET |
|
|
978 | if (o_reify & EV__IOFDSET) |
|
|
979 | { |
|
|
980 | unsigned long arg; |
|
|
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
983 | } |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2303 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
987 | { |
2304 | { |
988 | anfd->events = 0; |
2305 | anfd->events = 0; |
989 | |
2306 | |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2307 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
991 | anfd->events |= (unsigned char)w->events; |
2308 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1000 | |
2317 | |
1001 | fdchangecnt = 0; |
2318 | fdchangecnt = 0; |
1002 | } |
2319 | } |
1003 | |
2320 | |
1004 | /* something about the given fd changed */ |
2321 | /* something about the given fd changed */ |
1005 | inline_size void |
2322 | inline_size |
|
|
2323 | void |
1006 | fd_change (EV_P_ int fd, int flags) |
2324 | fd_change (EV_P_ int fd, int flags) |
1007 | { |
2325 | { |
1008 | unsigned char reify = anfds [fd].reify; |
2326 | unsigned char reify = anfds [fd].reify; |
1009 | anfds [fd].reify |= flags; |
2327 | anfds [fd].reify |= flags; |
1010 | |
2328 | |
1011 | if (expect_true (!reify)) |
2329 | if (ecb_expect_true (!reify)) |
1012 | { |
2330 | { |
1013 | ++fdchangecnt; |
2331 | ++fdchangecnt; |
1014 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2332 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1015 | fdchanges [fdchangecnt - 1] = fd; |
2333 | fdchanges [fdchangecnt - 1] = fd; |
1016 | } |
2334 | } |
1017 | } |
2335 | } |
1018 | |
2336 | |
1019 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2337 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1020 | inline_speed void |
2338 | inline_speed ecb_cold void |
1021 | fd_kill (EV_P_ int fd) |
2339 | fd_kill (EV_P_ int fd) |
1022 | { |
2340 | { |
1023 | ev_io *w; |
2341 | ev_io *w; |
1024 | |
2342 | |
1025 | while ((w = (ev_io *)anfds [fd].head)) |
2343 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1028 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2346 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1029 | } |
2347 | } |
1030 | } |
2348 | } |
1031 | |
2349 | |
1032 | /* check whether the given fd is actually valid, for error recovery */ |
2350 | /* check whether the given fd is actually valid, for error recovery */ |
1033 | inline_size int |
2351 | inline_size ecb_cold int |
1034 | fd_valid (int fd) |
2352 | fd_valid (int fd) |
1035 | { |
2353 | { |
1036 | #ifdef _WIN32 |
2354 | #ifdef _WIN32 |
1037 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2355 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1038 | #else |
2356 | #else |
1039 | return fcntl (fd, F_GETFD) != -1; |
2357 | return fcntl (fd, F_GETFD) != -1; |
1040 | #endif |
2358 | #endif |
1041 | } |
2359 | } |
1042 | |
2360 | |
1043 | /* called on EBADF to verify fds */ |
2361 | /* called on EBADF to verify fds */ |
1044 | static void noinline |
2362 | ecb_noinline ecb_cold |
|
|
2363 | static void |
1045 | fd_ebadf (EV_P) |
2364 | fd_ebadf (EV_P) |
1046 | { |
2365 | { |
1047 | int fd; |
2366 | int fd; |
1048 | |
2367 | |
1049 | for (fd = 0; fd < anfdmax; ++fd) |
2368 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1051 | if (!fd_valid (fd) && errno == EBADF) |
2370 | if (!fd_valid (fd) && errno == EBADF) |
1052 | fd_kill (EV_A_ fd); |
2371 | fd_kill (EV_A_ fd); |
1053 | } |
2372 | } |
1054 | |
2373 | |
1055 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2374 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1056 | static void noinline |
2375 | ecb_noinline ecb_cold |
|
|
2376 | static void |
1057 | fd_enomem (EV_P) |
2377 | fd_enomem (EV_P) |
1058 | { |
2378 | { |
1059 | int fd; |
2379 | int fd; |
1060 | |
2380 | |
1061 | for (fd = anfdmax; fd--; ) |
2381 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1065 | break; |
2385 | break; |
1066 | } |
2386 | } |
1067 | } |
2387 | } |
1068 | |
2388 | |
1069 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2389 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1070 | static void noinline |
2390 | ecb_noinline |
|
|
2391 | static void |
1071 | fd_rearm_all (EV_P) |
2392 | fd_rearm_all (EV_P) |
1072 | { |
2393 | { |
1073 | int fd; |
2394 | int fd; |
1074 | |
2395 | |
1075 | for (fd = 0; fd < anfdmax; ++fd) |
2396 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1128 | ev_tstamp minat; |
2449 | ev_tstamp minat; |
1129 | ANHE *minpos; |
2450 | ANHE *minpos; |
1130 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2451 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1131 | |
2452 | |
1132 | /* find minimum child */ |
2453 | /* find minimum child */ |
1133 | if (expect_true (pos + DHEAP - 1 < E)) |
2454 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1134 | { |
2455 | { |
1135 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2456 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1136 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2457 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1137 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2458 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1138 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2459 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1139 | } |
2460 | } |
1140 | else if (pos < E) |
2461 | else if (pos < E) |
1141 | { |
2462 | { |
1142 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2463 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1143 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2464 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1144 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2465 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1145 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2466 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1146 | } |
2467 | } |
1147 | else |
2468 | else |
1148 | break; |
2469 | break; |
1149 | |
2470 | |
1150 | if (ANHE_at (he) <= minat) |
2471 | if (ANHE_at (he) <= minat) |
… | |
… | |
1158 | |
2479 | |
1159 | heap [k] = he; |
2480 | heap [k] = he; |
1160 | ev_active (ANHE_w (he)) = k; |
2481 | ev_active (ANHE_w (he)) = k; |
1161 | } |
2482 | } |
1162 | |
2483 | |
1163 | #else /* 4HEAP */ |
2484 | #else /* not 4HEAP */ |
1164 | |
2485 | |
1165 | #define HEAP0 1 |
2486 | #define HEAP0 1 |
1166 | #define HPARENT(k) ((k) >> 1) |
2487 | #define HPARENT(k) ((k) >> 1) |
1167 | #define UPHEAP_DONE(p,k) (!(p)) |
2488 | #define UPHEAP_DONE(p,k) (!(p)) |
1168 | |
2489 | |
… | |
… | |
1256 | |
2577 | |
1257 | /*****************************************************************************/ |
2578 | /*****************************************************************************/ |
1258 | |
2579 | |
1259 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2580 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1260 | |
2581 | |
1261 | static void noinline |
2582 | ecb_noinline ecb_cold |
|
|
2583 | static void |
1262 | evpipe_init (EV_P) |
2584 | evpipe_init (EV_P) |
1263 | { |
2585 | { |
1264 | if (!ev_is_active (&pipe_w)) |
2586 | if (!ev_is_active (&pipe_w)) |
1265 | { |
2587 | { |
|
|
2588 | int fds [2]; |
|
|
2589 | |
1266 | # if EV_USE_EVENTFD |
2590 | # if EV_USE_EVENTFD |
|
|
2591 | fds [0] = -1; |
1267 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2592 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1268 | if (evfd < 0 && errno == EINVAL) |
2593 | if (fds [1] < 0 && errno == EINVAL) |
1269 | evfd = eventfd (0, 0); |
2594 | fds [1] = eventfd (0, 0); |
1270 | |
2595 | |
1271 | if (evfd >= 0) |
2596 | if (fds [1] < 0) |
|
|
2597 | # endif |
1272 | { |
2598 | { |
|
|
2599 | while (pipe (fds)) |
|
|
2600 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2601 | |
|
|
2602 | fd_intern (fds [0]); |
|
|
2603 | } |
|
|
2604 | |
1273 | evpipe [0] = -1; |
2605 | evpipe [0] = fds [0]; |
1274 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2606 | |
1275 | ev_io_set (&pipe_w, evfd, EV_READ); |
2607 | if (evpipe [1] < 0) |
|
|
2608 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2609 | else |
|
|
2610 | { |
|
|
2611 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2612 | /* so that evpipe_write can always rely on its value. */ |
|
|
2613 | /* this branch does not do anything sensible on windows, */ |
|
|
2614 | /* so must not be executed on windows */ |
|
|
2615 | |
|
|
2616 | dup2 (fds [1], evpipe [1]); |
|
|
2617 | close (fds [1]); |
|
|
2618 | } |
|
|
2619 | |
|
|
2620 | fd_intern (evpipe [1]); |
|
|
2621 | |
|
|
2622 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2623 | ev_io_start (EV_A_ &pipe_w); |
|
|
2624 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2625 | } |
|
|
2626 | } |
|
|
2627 | |
|
|
2628 | inline_speed void |
|
|
2629 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2630 | { |
|
|
2631 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2632 | |
|
|
2633 | if (ecb_expect_true (*flag)) |
|
|
2634 | return; |
|
|
2635 | |
|
|
2636 | *flag = 1; |
|
|
2637 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2638 | |
|
|
2639 | pipe_write_skipped = 1; |
|
|
2640 | |
|
|
2641 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2642 | |
|
|
2643 | if (pipe_write_wanted) |
|
|
2644 | { |
|
|
2645 | int old_errno; |
|
|
2646 | |
|
|
2647 | pipe_write_skipped = 0; |
|
|
2648 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2649 | |
|
|
2650 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2651 | |
|
|
2652 | #if EV_USE_EVENTFD |
|
|
2653 | if (evpipe [0] < 0) |
|
|
2654 | { |
|
|
2655 | uint64_t counter = 1; |
|
|
2656 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1276 | } |
2657 | } |
1277 | else |
2658 | else |
1278 | # endif |
2659 | #endif |
1279 | { |
2660 | { |
1280 | while (pipe (evpipe)) |
2661 | #ifdef _WIN32 |
1281 | ev_syserr ("(libev) error creating signal/async pipe"); |
2662 | WSABUF buf; |
1282 | |
2663 | DWORD sent; |
1283 | fd_intern (evpipe [0]); |
2664 | buf.buf = (char *)&buf; |
1284 | fd_intern (evpipe [1]); |
2665 | buf.len = 1; |
1285 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2666 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2667 | #else |
|
|
2668 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2669 | #endif |
1286 | } |
2670 | } |
1287 | |
|
|
1288 | ev_io_start (EV_A_ &pipe_w); |
|
|
1289 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1290 | } |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | inline_size void |
|
|
1294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1295 | { |
|
|
1296 | if (!*flag) |
|
|
1297 | { |
|
|
1298 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1299 | char dummy; |
|
|
1300 | |
|
|
1301 | *flag = 1; |
|
|
1302 | |
|
|
1303 | #if EV_USE_EVENTFD |
|
|
1304 | if (evfd >= 0) |
|
|
1305 | { |
|
|
1306 | uint64_t counter = 1; |
|
|
1307 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1308 | } |
|
|
1309 | else |
|
|
1310 | #endif |
|
|
1311 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1312 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1313 | /* so when you think this write should be a send instead, please find out */ |
|
|
1314 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1315 | /* tell me. thank you. */ |
|
|
1316 | write (evpipe [1], &dummy, 1); |
|
|
1317 | |
2671 | |
1318 | errno = old_errno; |
2672 | errno = old_errno; |
1319 | } |
2673 | } |
1320 | } |
2674 | } |
1321 | |
2675 | |
… | |
… | |
1324 | static void |
2678 | static void |
1325 | pipecb (EV_P_ ev_io *iow, int revents) |
2679 | pipecb (EV_P_ ev_io *iow, int revents) |
1326 | { |
2680 | { |
1327 | int i; |
2681 | int i; |
1328 | |
2682 | |
|
|
2683 | if (revents & EV_READ) |
|
|
2684 | { |
1329 | #if EV_USE_EVENTFD |
2685 | #if EV_USE_EVENTFD |
1330 | if (evfd >= 0) |
2686 | if (evpipe [0] < 0) |
1331 | { |
2687 | { |
1332 | uint64_t counter; |
2688 | uint64_t counter; |
1333 | read (evfd, &counter, sizeof (uint64_t)); |
2689 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1334 | } |
2690 | } |
1335 | else |
2691 | else |
1336 | #endif |
2692 | #endif |
1337 | { |
2693 | { |
1338 | char dummy; |
2694 | char dummy[4]; |
1339 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2695 | #ifdef _WIN32 |
|
|
2696 | WSABUF buf; |
|
|
2697 | DWORD recvd; |
|
|
2698 | DWORD flags = 0; |
|
|
2699 | buf.buf = dummy; |
|
|
2700 | buf.len = sizeof (dummy); |
|
|
2701 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2702 | #else |
1340 | read (evpipe [0], &dummy, 1); |
2703 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2704 | #endif |
|
|
2705 | } |
1341 | } |
2706 | } |
1342 | |
2707 | |
|
|
2708 | pipe_write_skipped = 0; |
|
|
2709 | |
|
|
2710 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2711 | |
|
|
2712 | #if EV_SIGNAL_ENABLE |
1343 | if (sig_pending) |
2713 | if (sig_pending) |
1344 | { |
2714 | { |
1345 | sig_pending = 0; |
2715 | sig_pending = 0; |
1346 | |
2716 | |
|
|
2717 | ECB_MEMORY_FENCE; |
|
|
2718 | |
1347 | for (i = EV_NSIG - 1; i--; ) |
2719 | for (i = EV_NSIG - 1; i--; ) |
1348 | if (expect_false (signals [i].pending)) |
2720 | if (ecb_expect_false (signals [i].pending)) |
1349 | ev_feed_signal_event (EV_A_ i + 1); |
2721 | ev_feed_signal_event (EV_A_ i + 1); |
1350 | } |
2722 | } |
|
|
2723 | #endif |
1351 | |
2724 | |
1352 | #if EV_ASYNC_ENABLE |
2725 | #if EV_ASYNC_ENABLE |
1353 | if (async_pending) |
2726 | if (async_pending) |
1354 | { |
2727 | { |
1355 | async_pending = 0; |
2728 | async_pending = 0; |
|
|
2729 | |
|
|
2730 | ECB_MEMORY_FENCE; |
1356 | |
2731 | |
1357 | for (i = asynccnt; i--; ) |
2732 | for (i = asynccnt; i--; ) |
1358 | if (asyncs [i]->sent) |
2733 | if (asyncs [i]->sent) |
1359 | { |
2734 | { |
1360 | asyncs [i]->sent = 0; |
2735 | asyncs [i]->sent = 0; |
|
|
2736 | ECB_MEMORY_FENCE_RELEASE; |
1361 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2737 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1362 | } |
2738 | } |
1363 | } |
2739 | } |
1364 | #endif |
2740 | #endif |
1365 | } |
2741 | } |
1366 | |
2742 | |
1367 | /*****************************************************************************/ |
2743 | /*****************************************************************************/ |
1368 | |
2744 | |
|
|
2745 | void |
|
|
2746 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2747 | { |
|
|
2748 | #if EV_MULTIPLICITY |
|
|
2749 | EV_P; |
|
|
2750 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2751 | EV_A = signals [signum - 1].loop; |
|
|
2752 | |
|
|
2753 | if (!EV_A) |
|
|
2754 | return; |
|
|
2755 | #endif |
|
|
2756 | |
|
|
2757 | signals [signum - 1].pending = 1; |
|
|
2758 | evpipe_write (EV_A_ &sig_pending); |
|
|
2759 | } |
|
|
2760 | |
1369 | static void |
2761 | static void |
1370 | ev_sighandler (int signum) |
2762 | ev_sighandler (int signum) |
1371 | { |
2763 | { |
1372 | #if EV_MULTIPLICITY |
|
|
1373 | EV_P = signals [signum - 1].loop; |
|
|
1374 | #endif |
|
|
1375 | |
|
|
1376 | #ifdef _WIN32 |
2764 | #ifdef _WIN32 |
1377 | signal (signum, ev_sighandler); |
2765 | signal (signum, ev_sighandler); |
1378 | #endif |
2766 | #endif |
1379 | |
2767 | |
1380 | signals [signum - 1].pending = 1; |
2768 | ev_feed_signal (signum); |
1381 | evpipe_write (EV_A_ &sig_pending); |
|
|
1382 | } |
2769 | } |
1383 | |
2770 | |
1384 | void noinline |
2771 | ecb_noinline |
|
|
2772 | void |
1385 | ev_feed_signal_event (EV_P_ int signum) |
2773 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1386 | { |
2774 | { |
1387 | WL w; |
2775 | WL w; |
1388 | |
2776 | |
1389 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2777 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1390 | return; |
2778 | return; |
1391 | |
2779 | |
1392 | --signum; |
2780 | --signum; |
1393 | |
2781 | |
1394 | #if EV_MULTIPLICITY |
2782 | #if EV_MULTIPLICITY |
1395 | /* it is permissible to try to feed a signal to the wrong loop */ |
2783 | /* it is permissible to try to feed a signal to the wrong loop */ |
1396 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2784 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1397 | |
2785 | |
1398 | if (expect_false (signals [signum].loop != EV_A)) |
2786 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1399 | return; |
2787 | return; |
1400 | #endif |
2788 | #endif |
1401 | |
2789 | |
1402 | signals [signum].pending = 0; |
2790 | signals [signum].pending = 0; |
|
|
2791 | ECB_MEMORY_FENCE_RELEASE; |
1403 | |
2792 | |
1404 | for (w = signals [signum].head; w; w = w->next) |
2793 | for (w = signals [signum].head; w; w = w->next) |
1405 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2794 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1406 | } |
2795 | } |
1407 | |
2796 | |
… | |
… | |
1486 | |
2875 | |
1487 | #endif |
2876 | #endif |
1488 | |
2877 | |
1489 | /*****************************************************************************/ |
2878 | /*****************************************************************************/ |
1490 | |
2879 | |
|
|
2880 | #if EV_USE_TIMERFD |
|
|
2881 | |
|
|
2882 | static void periodics_reschedule (EV_P); |
|
|
2883 | |
|
|
2884 | static void |
|
|
2885 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2886 | { |
|
|
2887 | struct itimerspec its = { 0 }; |
|
|
2888 | |
|
|
2889 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2890 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2891 | * be a problem. */ |
|
|
2892 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2893 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2894 | |
|
|
2895 | ev_rt_now = ev_time (); |
|
|
2896 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2897 | /* but maybe in the future we want the full treatment. */ |
|
|
2898 | /* |
|
|
2899 | now_floor = EV_TS_CONST (0.); |
|
|
2900 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2901 | */ |
|
|
2902 | periodics_reschedule (EV_A); |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | ecb_noinline ecb_cold |
|
|
2906 | static void |
|
|
2907 | evtimerfd_init (EV_P) |
|
|
2908 | { |
|
|
2909 | if (!ev_is_active (&timerfd_w)) |
|
|
2910 | { |
|
|
2911 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2912 | |
|
|
2913 | if (timerfd >= 0) |
|
|
2914 | { |
|
|
2915 | fd_intern (timerfd); /* just to be sure */ |
|
|
2916 | |
|
|
2917 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2918 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2919 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2920 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2921 | |
|
|
2922 | /* (re-) arm timer */ |
|
|
2923 | timerfdcb (EV_A_ 0, 0); |
|
|
2924 | } |
|
|
2925 | } |
|
|
2926 | } |
|
|
2927 | |
|
|
2928 | #endif |
|
|
2929 | |
|
|
2930 | /*****************************************************************************/ |
|
|
2931 | |
|
|
2932 | #if EV_USE_IOCP |
|
|
2933 | # include "ev_iocp.c" |
|
|
2934 | #endif |
1491 | #if EV_USE_PORT |
2935 | #if EV_USE_PORT |
1492 | # include "ev_port.c" |
2936 | # include "ev_port.c" |
1493 | #endif |
2937 | #endif |
1494 | #if EV_USE_KQUEUE |
2938 | #if EV_USE_KQUEUE |
1495 | # include "ev_kqueue.c" |
2939 | # include "ev_kqueue.c" |
1496 | #endif |
2940 | #endif |
1497 | #if EV_USE_EPOLL |
2941 | #if EV_USE_EPOLL |
1498 | # include "ev_epoll.c" |
2942 | # include "ev_epoll.c" |
1499 | #endif |
2943 | #endif |
|
|
2944 | #if EV_USE_LINUXAIO |
|
|
2945 | # include "ev_linuxaio.c" |
|
|
2946 | #endif |
|
|
2947 | #if EV_USE_IOURING |
|
|
2948 | # include "ev_iouring.c" |
|
|
2949 | #endif |
1500 | #if EV_USE_POLL |
2950 | #if EV_USE_POLL |
1501 | # include "ev_poll.c" |
2951 | # include "ev_poll.c" |
1502 | #endif |
2952 | #endif |
1503 | #if EV_USE_SELECT |
2953 | #if EV_USE_SELECT |
1504 | # include "ev_select.c" |
2954 | # include "ev_select.c" |
1505 | #endif |
2955 | #endif |
1506 | |
2956 | |
1507 | int |
2957 | ecb_cold int |
1508 | ev_version_major (void) |
2958 | ev_version_major (void) EV_NOEXCEPT |
1509 | { |
2959 | { |
1510 | return EV_VERSION_MAJOR; |
2960 | return EV_VERSION_MAJOR; |
1511 | } |
2961 | } |
1512 | |
2962 | |
1513 | int |
2963 | ecb_cold int |
1514 | ev_version_minor (void) |
2964 | ev_version_minor (void) EV_NOEXCEPT |
1515 | { |
2965 | { |
1516 | return EV_VERSION_MINOR; |
2966 | return EV_VERSION_MINOR; |
1517 | } |
2967 | } |
1518 | |
2968 | |
1519 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2969 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1520 | int inline_size |
2970 | inline_size ecb_cold int |
1521 | enable_secure (void) |
2971 | enable_secure (void) |
1522 | { |
2972 | { |
1523 | #ifdef _WIN32 |
2973 | #ifdef _WIN32 |
1524 | return 0; |
2974 | return 0; |
1525 | #else |
2975 | #else |
1526 | return getuid () != geteuid () |
2976 | return getuid () != geteuid () |
1527 | || getgid () != getegid (); |
2977 | || getgid () != getegid (); |
1528 | #endif |
2978 | #endif |
1529 | } |
2979 | } |
1530 | |
2980 | |
|
|
2981 | ecb_cold |
1531 | unsigned int |
2982 | unsigned int |
1532 | ev_supported_backends (void) |
2983 | ev_supported_backends (void) EV_NOEXCEPT |
1533 | { |
2984 | { |
1534 | unsigned int flags = 0; |
2985 | unsigned int flags = 0; |
1535 | |
2986 | |
1536 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2987 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1537 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2988 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1538 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2989 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2990 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2991 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1539 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2992 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1540 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2993 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1541 | |
2994 | |
1542 | return flags; |
2995 | return flags; |
1543 | } |
2996 | } |
1544 | |
2997 | |
|
|
2998 | ecb_cold |
1545 | unsigned int |
2999 | unsigned int |
1546 | ev_recommended_backends (void) |
3000 | ev_recommended_backends (void) EV_NOEXCEPT |
1547 | { |
3001 | { |
1548 | unsigned int flags = ev_supported_backends (); |
3002 | unsigned int flags = ev_supported_backends (); |
1549 | |
3003 | |
1550 | #ifndef __NetBSD__ |
3004 | #ifndef __NetBSD__ |
1551 | /* kqueue is borked on everything but netbsd apparently */ |
3005 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1559 | #endif |
3013 | #endif |
1560 | #ifdef __FreeBSD__ |
3014 | #ifdef __FreeBSD__ |
1561 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3015 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1562 | #endif |
3016 | #endif |
1563 | |
3017 | |
|
|
3018 | /* TODO: linuxaio is very experimental */ |
|
|
3019 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3020 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3021 | #endif |
|
|
3022 | /* TODO: linuxaio is super experimental */ |
|
|
3023 | #if !EV_RECOMMEND_IOURING |
|
|
3024 | flags &= ~EVBACKEND_IOURING; |
|
|
3025 | #endif |
|
|
3026 | |
1564 | return flags; |
3027 | return flags; |
1565 | } |
3028 | } |
1566 | |
3029 | |
|
|
3030 | ecb_cold |
1567 | unsigned int |
3031 | unsigned int |
1568 | ev_embeddable_backends (void) |
3032 | ev_embeddable_backends (void) EV_NOEXCEPT |
1569 | { |
3033 | { |
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3034 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1571 | |
3035 | |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3036 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3037 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1574 | flags &= ~EVBACKEND_EPOLL; |
3038 | flags &= ~EVBACKEND_EPOLL; |
1575 | |
3039 | |
|
|
3040 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3041 | |
|
|
3042 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
3043 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
3044 | * if the kernel ever is fixed, this might change... |
|
|
3045 | */ |
|
|
3046 | |
1576 | return flags; |
3047 | return flags; |
1577 | } |
3048 | } |
1578 | |
3049 | |
1579 | unsigned int |
3050 | unsigned int |
1580 | ev_backend (EV_P) |
3051 | ev_backend (EV_P) EV_NOEXCEPT |
1581 | { |
3052 | { |
1582 | return backend; |
3053 | return backend; |
1583 | } |
3054 | } |
1584 | |
3055 | |
1585 | #if EV_FEATURE_API |
3056 | #if EV_FEATURE_API |
1586 | unsigned int |
3057 | unsigned int |
1587 | ev_iteration (EV_P) |
3058 | ev_iteration (EV_P) EV_NOEXCEPT |
1588 | { |
3059 | { |
1589 | return loop_count; |
3060 | return loop_count; |
1590 | } |
3061 | } |
1591 | |
3062 | |
1592 | unsigned int |
3063 | unsigned int |
1593 | ev_depth (EV_P) |
3064 | ev_depth (EV_P) EV_NOEXCEPT |
1594 | { |
3065 | { |
1595 | return loop_depth; |
3066 | return loop_depth; |
1596 | } |
3067 | } |
1597 | |
3068 | |
1598 | void |
3069 | void |
1599 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3070 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1600 | { |
3071 | { |
1601 | io_blocktime = interval; |
3072 | io_blocktime = interval; |
1602 | } |
3073 | } |
1603 | |
3074 | |
1604 | void |
3075 | void |
1605 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3076 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1606 | { |
3077 | { |
1607 | timeout_blocktime = interval; |
3078 | timeout_blocktime = interval; |
1608 | } |
3079 | } |
1609 | |
3080 | |
1610 | void |
3081 | void |
1611 | ev_set_userdata (EV_P_ void *data) |
3082 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1612 | { |
3083 | { |
1613 | userdata = data; |
3084 | userdata = data; |
1614 | } |
3085 | } |
1615 | |
3086 | |
1616 | void * |
3087 | void * |
1617 | ev_userdata (EV_P) |
3088 | ev_userdata (EV_P) EV_NOEXCEPT |
1618 | { |
3089 | { |
1619 | return userdata; |
3090 | return userdata; |
1620 | } |
3091 | } |
1621 | |
3092 | |
|
|
3093 | void |
1622 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3094 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1623 | { |
3095 | { |
1624 | invoke_cb = invoke_pending_cb; |
3096 | invoke_cb = invoke_pending_cb; |
1625 | } |
3097 | } |
1626 | |
3098 | |
|
|
3099 | void |
1627 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3100 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1628 | { |
3101 | { |
1629 | release_cb = release; |
3102 | release_cb = release; |
1630 | acquire_cb = acquire; |
3103 | acquire_cb = acquire; |
1631 | } |
3104 | } |
1632 | #endif |
3105 | #endif |
1633 | |
3106 | |
1634 | /* initialise a loop structure, must be zero-initialised */ |
3107 | /* initialise a loop structure, must be zero-initialised */ |
1635 | static void noinline |
3108 | ecb_noinline ecb_cold |
|
|
3109 | static void |
1636 | loop_init (EV_P_ unsigned int flags) |
3110 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1637 | { |
3111 | { |
1638 | if (!backend) |
3112 | if (!backend) |
1639 | { |
3113 | { |
|
|
3114 | origflags = flags; |
|
|
3115 | |
1640 | #if EV_USE_REALTIME |
3116 | #if EV_USE_REALTIME |
1641 | if (!have_realtime) |
3117 | if (!have_realtime) |
1642 | { |
3118 | { |
1643 | struct timespec ts; |
3119 | struct timespec ts; |
1644 | |
3120 | |
… | |
… | |
1666 | if (!(flags & EVFLAG_NOENV) |
3142 | if (!(flags & EVFLAG_NOENV) |
1667 | && !enable_secure () |
3143 | && !enable_secure () |
1668 | && getenv ("LIBEV_FLAGS")) |
3144 | && getenv ("LIBEV_FLAGS")) |
1669 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3145 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1670 | |
3146 | |
1671 | ev_rt_now = ev_time (); |
3147 | ev_rt_now = ev_time (); |
1672 | mn_now = get_clock (); |
3148 | mn_now = get_clock (); |
1673 | now_floor = mn_now; |
3149 | now_floor = mn_now; |
1674 | rtmn_diff = ev_rt_now - mn_now; |
3150 | rtmn_diff = ev_rt_now - mn_now; |
1675 | #if EV_FEATURE_API |
3151 | #if EV_FEATURE_API |
1676 | invoke_cb = ev_invoke_pending; |
3152 | invoke_cb = ev_invoke_pending; |
1677 | #endif |
3153 | #endif |
1678 | |
3154 | |
1679 | io_blocktime = 0.; |
3155 | io_blocktime = 0.; |
1680 | timeout_blocktime = 0.; |
3156 | timeout_blocktime = 0.; |
1681 | backend = 0; |
3157 | backend = 0; |
1682 | backend_fd = -1; |
3158 | backend_fd = -1; |
1683 | sig_pending = 0; |
3159 | sig_pending = 0; |
1684 | #if EV_ASYNC_ENABLE |
3160 | #if EV_ASYNC_ENABLE |
1685 | async_pending = 0; |
3161 | async_pending = 0; |
1686 | #endif |
3162 | #endif |
|
|
3163 | pipe_write_skipped = 0; |
|
|
3164 | pipe_write_wanted = 0; |
|
|
3165 | evpipe [0] = -1; |
|
|
3166 | evpipe [1] = -1; |
1687 | #if EV_USE_INOTIFY |
3167 | #if EV_USE_INOTIFY |
1688 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3168 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1689 | #endif |
3169 | #endif |
1690 | #if EV_USE_SIGNALFD |
3170 | #if EV_USE_SIGNALFD |
1691 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3171 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1692 | #endif |
3172 | #endif |
|
|
3173 | #if EV_USE_TIMERFD |
|
|
3174 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3175 | #endif |
1693 | |
3176 | |
1694 | if (!(flags & 0x0000ffffU)) |
3177 | if (!(flags & EVBACKEND_MASK)) |
1695 | flags |= ev_recommended_backends (); |
3178 | flags |= ev_recommended_backends (); |
1696 | |
3179 | |
|
|
3180 | #if EV_USE_IOCP |
|
|
3181 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3182 | #endif |
1697 | #if EV_USE_PORT |
3183 | #if EV_USE_PORT |
1698 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3184 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1699 | #endif |
3185 | #endif |
1700 | #if EV_USE_KQUEUE |
3186 | #if EV_USE_KQUEUE |
1701 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3187 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3188 | #endif |
|
|
3189 | #if EV_USE_IOURING |
|
|
3190 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3191 | #endif |
|
|
3192 | #if EV_USE_LINUXAIO |
|
|
3193 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1702 | #endif |
3194 | #endif |
1703 | #if EV_USE_EPOLL |
3195 | #if EV_USE_EPOLL |
1704 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3196 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1705 | #endif |
3197 | #endif |
1706 | #if EV_USE_POLL |
3198 | #if EV_USE_POLL |
1707 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3199 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1708 | #endif |
3200 | #endif |
1709 | #if EV_USE_SELECT |
3201 | #if EV_USE_SELECT |
1710 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3202 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1711 | #endif |
3203 | #endif |
1712 | |
3204 | |
1713 | ev_prepare_init (&pending_w, pendingcb); |
3205 | ev_prepare_init (&pending_w, pendingcb); |
1714 | |
3206 | |
1715 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3207 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
1718 | #endif |
3210 | #endif |
1719 | } |
3211 | } |
1720 | } |
3212 | } |
1721 | |
3213 | |
1722 | /* free up a loop structure */ |
3214 | /* free up a loop structure */ |
1723 | static void noinline |
3215 | ecb_cold |
|
|
3216 | void |
1724 | loop_destroy (EV_P) |
3217 | ev_loop_destroy (EV_P) |
1725 | { |
3218 | { |
1726 | int i; |
3219 | int i; |
|
|
3220 | |
|
|
3221 | #if EV_MULTIPLICITY |
|
|
3222 | /* mimic free (0) */ |
|
|
3223 | if (!EV_A) |
|
|
3224 | return; |
|
|
3225 | #endif |
|
|
3226 | |
|
|
3227 | #if EV_CLEANUP_ENABLE |
|
|
3228 | /* queue cleanup watchers (and execute them) */ |
|
|
3229 | if (ecb_expect_false (cleanupcnt)) |
|
|
3230 | { |
|
|
3231 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3232 | EV_INVOKE_PENDING; |
|
|
3233 | } |
|
|
3234 | #endif |
|
|
3235 | |
|
|
3236 | #if EV_CHILD_ENABLE |
|
|
3237 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3238 | { |
|
|
3239 | ev_ref (EV_A); /* child watcher */ |
|
|
3240 | ev_signal_stop (EV_A_ &childev); |
|
|
3241 | } |
|
|
3242 | #endif |
1727 | |
3243 | |
1728 | if (ev_is_active (&pipe_w)) |
3244 | if (ev_is_active (&pipe_w)) |
1729 | { |
3245 | { |
1730 | /*ev_ref (EV_A);*/ |
3246 | /*ev_ref (EV_A);*/ |
1731 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3247 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1732 | |
3248 | |
1733 | #if EV_USE_EVENTFD |
|
|
1734 | if (evfd >= 0) |
|
|
1735 | close (evfd); |
|
|
1736 | #endif |
|
|
1737 | |
|
|
1738 | if (evpipe [0] >= 0) |
|
|
1739 | { |
|
|
1740 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3249 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1741 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3250 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1742 | } |
|
|
1743 | } |
3251 | } |
1744 | |
3252 | |
1745 | #if EV_USE_SIGNALFD |
3253 | #if EV_USE_SIGNALFD |
1746 | if (ev_is_active (&sigfd_w)) |
3254 | if (ev_is_active (&sigfd_w)) |
1747 | close (sigfd); |
3255 | close (sigfd); |
1748 | #endif |
3256 | #endif |
1749 | |
3257 | |
|
|
3258 | #if EV_USE_TIMERFD |
|
|
3259 | if (ev_is_active (&timerfd_w)) |
|
|
3260 | close (timerfd); |
|
|
3261 | #endif |
|
|
3262 | |
1750 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
1751 | if (fs_fd >= 0) |
3264 | if (fs_fd >= 0) |
1752 | close (fs_fd); |
3265 | close (fs_fd); |
1753 | #endif |
3266 | #endif |
1754 | |
3267 | |
1755 | if (backend_fd >= 0) |
3268 | if (backend_fd >= 0) |
1756 | close (backend_fd); |
3269 | close (backend_fd); |
1757 | |
3270 | |
|
|
3271 | #if EV_USE_IOCP |
|
|
3272 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3273 | #endif |
1758 | #if EV_USE_PORT |
3274 | #if EV_USE_PORT |
1759 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3275 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1760 | #endif |
3276 | #endif |
1761 | #if EV_USE_KQUEUE |
3277 | #if EV_USE_KQUEUE |
1762 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3278 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3279 | #endif |
|
|
3280 | #if EV_USE_IOURING |
|
|
3281 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3282 | #endif |
|
|
3283 | #if EV_USE_LINUXAIO |
|
|
3284 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1763 | #endif |
3285 | #endif |
1764 | #if EV_USE_EPOLL |
3286 | #if EV_USE_EPOLL |
1765 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3287 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1766 | #endif |
3288 | #endif |
1767 | #if EV_USE_POLL |
3289 | #if EV_USE_POLL |
1768 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3290 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1769 | #endif |
3291 | #endif |
1770 | #if EV_USE_SELECT |
3292 | #if EV_USE_SELECT |
1771 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3293 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1772 | #endif |
3294 | #endif |
1773 | |
3295 | |
1774 | for (i = NUMPRI; i--; ) |
3296 | for (i = NUMPRI; i--; ) |
1775 | { |
3297 | { |
1776 | array_free (pending, [i]); |
3298 | array_free (pending, [i]); |
… | |
… | |
1789 | array_free (periodic, EMPTY); |
3311 | array_free (periodic, EMPTY); |
1790 | #endif |
3312 | #endif |
1791 | #if EV_FORK_ENABLE |
3313 | #if EV_FORK_ENABLE |
1792 | array_free (fork, EMPTY); |
3314 | array_free (fork, EMPTY); |
1793 | #endif |
3315 | #endif |
|
|
3316 | #if EV_CLEANUP_ENABLE |
|
|
3317 | array_free (cleanup, EMPTY); |
|
|
3318 | #endif |
1794 | array_free (prepare, EMPTY); |
3319 | array_free (prepare, EMPTY); |
1795 | array_free (check, EMPTY); |
3320 | array_free (check, EMPTY); |
1796 | #if EV_ASYNC_ENABLE |
3321 | #if EV_ASYNC_ENABLE |
1797 | array_free (async, EMPTY); |
3322 | array_free (async, EMPTY); |
1798 | #endif |
3323 | #endif |
1799 | |
3324 | |
1800 | backend = 0; |
3325 | backend = 0; |
|
|
3326 | |
|
|
3327 | #if EV_MULTIPLICITY |
|
|
3328 | if (ev_is_default_loop (EV_A)) |
|
|
3329 | #endif |
|
|
3330 | ev_default_loop_ptr = 0; |
|
|
3331 | #if EV_MULTIPLICITY |
|
|
3332 | else |
|
|
3333 | ev_free (EV_A); |
|
|
3334 | #endif |
1801 | } |
3335 | } |
1802 | |
3336 | |
1803 | #if EV_USE_INOTIFY |
3337 | #if EV_USE_INOTIFY |
1804 | inline_size void infy_fork (EV_P); |
3338 | inline_size void infy_fork (EV_P); |
1805 | #endif |
3339 | #endif |
1806 | |
3340 | |
1807 | inline_size void |
3341 | inline_size void |
1808 | loop_fork (EV_P) |
3342 | loop_fork (EV_P) |
1809 | { |
3343 | { |
1810 | #if EV_USE_PORT |
3344 | #if EV_USE_PORT |
1811 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3345 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1812 | #endif |
3346 | #endif |
1813 | #if EV_USE_KQUEUE |
3347 | #if EV_USE_KQUEUE |
1814 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3348 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3349 | #endif |
|
|
3350 | #if EV_USE_IOURING |
|
|
3351 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3352 | #endif |
|
|
3353 | #if EV_USE_LINUXAIO |
|
|
3354 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1815 | #endif |
3355 | #endif |
1816 | #if EV_USE_EPOLL |
3356 | #if EV_USE_EPOLL |
1817 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3357 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1818 | #endif |
3358 | #endif |
1819 | #if EV_USE_INOTIFY |
3359 | #if EV_USE_INOTIFY |
1820 | infy_fork (EV_A); |
3360 | infy_fork (EV_A); |
1821 | #endif |
3361 | #endif |
1822 | |
3362 | |
|
|
3363 | if (postfork != 2) |
|
|
3364 | { |
|
|
3365 | #if EV_USE_SIGNALFD |
|
|
3366 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3367 | #endif |
|
|
3368 | |
|
|
3369 | #if EV_USE_TIMERFD |
|
|
3370 | if (ev_is_active (&timerfd_w)) |
|
|
3371 | { |
|
|
3372 | ev_ref (EV_A); |
|
|
3373 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3374 | |
|
|
3375 | close (timerfd); |
|
|
3376 | timerfd = -2; |
|
|
3377 | |
|
|
3378 | evtimerfd_init (EV_A); |
|
|
3379 | /* reschedule periodics, in case we missed something */ |
|
|
3380 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3381 | } |
|
|
3382 | #endif |
|
|
3383 | |
|
|
3384 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1823 | if (ev_is_active (&pipe_w)) |
3385 | if (ev_is_active (&pipe_w)) |
1824 | { |
3386 | { |
1825 | /* this "locks" the handlers against writing to the pipe */ |
3387 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1826 | /* while we modify the fd vars */ |
3388 | |
1827 | sig_pending = 1; |
|
|
1828 | #if EV_ASYNC_ENABLE |
|
|
1829 | async_pending = 1; |
|
|
1830 | #endif |
|
|
1831 | |
|
|
1832 | ev_ref (EV_A); |
3389 | ev_ref (EV_A); |
1833 | ev_io_stop (EV_A_ &pipe_w); |
3390 | ev_io_stop (EV_A_ &pipe_w); |
1834 | |
3391 | |
1835 | #if EV_USE_EVENTFD |
|
|
1836 | if (evfd >= 0) |
|
|
1837 | close (evfd); |
|
|
1838 | #endif |
|
|
1839 | |
|
|
1840 | if (evpipe [0] >= 0) |
3392 | if (evpipe [0] >= 0) |
1841 | { |
|
|
1842 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3393 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1843 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3394 | |
|
|
3395 | evpipe_init (EV_A); |
|
|
3396 | /* iterate over everything, in case we missed something before */ |
|
|
3397 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1844 | } |
3398 | } |
1845 | |
3399 | #endif |
1846 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1847 | evpipe_init (EV_A); |
|
|
1848 | /* now iterate over everything, in case we missed something */ |
|
|
1849 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1850 | #endif |
|
|
1851 | } |
3400 | } |
1852 | |
3401 | |
1853 | postfork = 0; |
3402 | postfork = 0; |
1854 | } |
3403 | } |
1855 | |
3404 | |
1856 | #if EV_MULTIPLICITY |
3405 | #if EV_MULTIPLICITY |
1857 | |
3406 | |
|
|
3407 | ecb_cold |
1858 | struct ev_loop * |
3408 | struct ev_loop * |
1859 | ev_loop_new (unsigned int flags) |
3409 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1860 | { |
3410 | { |
1861 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3411 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1862 | |
3412 | |
1863 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3413 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1864 | loop_init (EV_A_ flags); |
3414 | loop_init (EV_A_ flags); |
1865 | |
3415 | |
1866 | if (ev_backend (EV_A)) |
3416 | if (ev_backend (EV_A)) |
1867 | return EV_A; |
3417 | return EV_A; |
1868 | |
3418 | |
|
|
3419 | ev_free (EV_A); |
1869 | return 0; |
3420 | return 0; |
1870 | } |
3421 | } |
1871 | |
3422 | |
1872 | void |
|
|
1873 | ev_loop_destroy (EV_P) |
|
|
1874 | { |
|
|
1875 | loop_destroy (EV_A); |
|
|
1876 | ev_free (loop); |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | void |
|
|
1880 | ev_loop_fork (EV_P) |
|
|
1881 | { |
|
|
1882 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1883 | } |
|
|
1884 | #endif /* multiplicity */ |
3423 | #endif /* multiplicity */ |
1885 | |
3424 | |
1886 | #if EV_VERIFY |
3425 | #if EV_VERIFY |
1887 | static void noinline |
3426 | ecb_noinline ecb_cold |
|
|
3427 | static void |
1888 | verify_watcher (EV_P_ W w) |
3428 | verify_watcher (EV_P_ W w) |
1889 | { |
3429 | { |
1890 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3430 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1891 | |
3431 | |
1892 | if (w->pending) |
3432 | if (w->pending) |
1893 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3433 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1894 | } |
3434 | } |
1895 | |
3435 | |
1896 | static void noinline |
3436 | ecb_noinline ecb_cold |
|
|
3437 | static void |
1897 | verify_heap (EV_P_ ANHE *heap, int N) |
3438 | verify_heap (EV_P_ ANHE *heap, int N) |
1898 | { |
3439 | { |
1899 | int i; |
3440 | int i; |
1900 | |
3441 | |
1901 | for (i = HEAP0; i < N + HEAP0; ++i) |
3442 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1906 | |
3447 | |
1907 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3448 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1908 | } |
3449 | } |
1909 | } |
3450 | } |
1910 | |
3451 | |
1911 | static void noinline |
3452 | ecb_noinline ecb_cold |
|
|
3453 | static void |
1912 | array_verify (EV_P_ W *ws, int cnt) |
3454 | array_verify (EV_P_ W *ws, int cnt) |
1913 | { |
3455 | { |
1914 | while (cnt--) |
3456 | while (cnt--) |
1915 | { |
3457 | { |
1916 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3458 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1918 | } |
3460 | } |
1919 | } |
3461 | } |
1920 | #endif |
3462 | #endif |
1921 | |
3463 | |
1922 | #if EV_FEATURE_API |
3464 | #if EV_FEATURE_API |
1923 | void |
3465 | void ecb_cold |
1924 | ev_verify (EV_P) |
3466 | ev_verify (EV_P) EV_NOEXCEPT |
1925 | { |
3467 | { |
1926 | #if EV_VERIFY |
3468 | #if EV_VERIFY |
1927 | int i; |
3469 | int i; |
1928 | WL w; |
3470 | WL w, w2; |
1929 | |
3471 | |
1930 | assert (activecnt >= -1); |
3472 | assert (activecnt >= -1); |
1931 | |
3473 | |
1932 | assert (fdchangemax >= fdchangecnt); |
3474 | assert (fdchangemax >= fdchangecnt); |
1933 | for (i = 0; i < fdchangecnt; ++i) |
3475 | for (i = 0; i < fdchangecnt; ++i) |
1934 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3476 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1935 | |
3477 | |
1936 | assert (anfdmax >= 0); |
3478 | assert (anfdmax >= 0); |
1937 | for (i = 0; i < anfdmax; ++i) |
3479 | for (i = 0; i < anfdmax; ++i) |
|
|
3480 | { |
|
|
3481 | int j = 0; |
|
|
3482 | |
1938 | for (w = anfds [i].head; w; w = w->next) |
3483 | for (w = w2 = anfds [i].head; w; w = w->next) |
1939 | { |
3484 | { |
1940 | verify_watcher (EV_A_ (W)w); |
3485 | verify_watcher (EV_A_ (W)w); |
|
|
3486 | |
|
|
3487 | if (j++ & 1) |
|
|
3488 | { |
|
|
3489 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3490 | w2 = w2->next; |
|
|
3491 | } |
|
|
3492 | |
1941 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3493 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1942 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3494 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1943 | } |
3495 | } |
|
|
3496 | } |
1944 | |
3497 | |
1945 | assert (timermax >= timercnt); |
3498 | assert (timermax >= timercnt); |
1946 | verify_heap (EV_A_ timers, timercnt); |
3499 | verify_heap (EV_A_ timers, timercnt); |
1947 | |
3500 | |
1948 | #if EV_PERIODIC_ENABLE |
3501 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1963 | #if EV_FORK_ENABLE |
3516 | #if EV_FORK_ENABLE |
1964 | assert (forkmax >= forkcnt); |
3517 | assert (forkmax >= forkcnt); |
1965 | array_verify (EV_A_ (W *)forks, forkcnt); |
3518 | array_verify (EV_A_ (W *)forks, forkcnt); |
1966 | #endif |
3519 | #endif |
1967 | |
3520 | |
|
|
3521 | #if EV_CLEANUP_ENABLE |
|
|
3522 | assert (cleanupmax >= cleanupcnt); |
|
|
3523 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3524 | #endif |
|
|
3525 | |
1968 | #if EV_ASYNC_ENABLE |
3526 | #if EV_ASYNC_ENABLE |
1969 | assert (asyncmax >= asynccnt); |
3527 | assert (asyncmax >= asynccnt); |
1970 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3528 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1971 | #endif |
3529 | #endif |
1972 | |
3530 | |
… | |
… | |
1989 | #endif |
3547 | #endif |
1990 | } |
3548 | } |
1991 | #endif |
3549 | #endif |
1992 | |
3550 | |
1993 | #if EV_MULTIPLICITY |
3551 | #if EV_MULTIPLICITY |
|
|
3552 | ecb_cold |
1994 | struct ev_loop * |
3553 | struct ev_loop * |
1995 | ev_default_loop_init (unsigned int flags) |
|
|
1996 | #else |
3554 | #else |
1997 | int |
3555 | int |
|
|
3556 | #endif |
1998 | ev_default_loop (unsigned int flags) |
3557 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1999 | #endif |
|
|
2000 | { |
3558 | { |
2001 | if (!ev_default_loop_ptr) |
3559 | if (!ev_default_loop_ptr) |
2002 | { |
3560 | { |
2003 | #if EV_MULTIPLICITY |
3561 | #if EV_MULTIPLICITY |
2004 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3562 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2023 | |
3581 | |
2024 | return ev_default_loop_ptr; |
3582 | return ev_default_loop_ptr; |
2025 | } |
3583 | } |
2026 | |
3584 | |
2027 | void |
3585 | void |
2028 | ev_default_destroy (void) |
3586 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2029 | { |
3587 | { |
2030 | #if EV_MULTIPLICITY |
3588 | postfork = 1; |
2031 | EV_P = ev_default_loop_ptr; |
|
|
2032 | #endif |
|
|
2033 | |
|
|
2034 | ev_default_loop_ptr = 0; |
|
|
2035 | |
|
|
2036 | #if EV_CHILD_ENABLE |
|
|
2037 | ev_ref (EV_A); /* child watcher */ |
|
|
2038 | ev_signal_stop (EV_A_ &childev); |
|
|
2039 | #endif |
|
|
2040 | |
|
|
2041 | loop_destroy (EV_A); |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | void |
|
|
2045 | ev_default_fork (void) |
|
|
2046 | { |
|
|
2047 | #if EV_MULTIPLICITY |
|
|
2048 | EV_P = ev_default_loop_ptr; |
|
|
2049 | #endif |
|
|
2050 | |
|
|
2051 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2052 | } |
3589 | } |
2053 | |
3590 | |
2054 | /*****************************************************************************/ |
3591 | /*****************************************************************************/ |
2055 | |
3592 | |
2056 | void |
3593 | void |
… | |
… | |
2058 | { |
3595 | { |
2059 | EV_CB_INVOKE ((W)w, revents); |
3596 | EV_CB_INVOKE ((W)w, revents); |
2060 | } |
3597 | } |
2061 | |
3598 | |
2062 | unsigned int |
3599 | unsigned int |
2063 | ev_pending_count (EV_P) |
3600 | ev_pending_count (EV_P) EV_NOEXCEPT |
2064 | { |
3601 | { |
2065 | int pri; |
3602 | int pri; |
2066 | unsigned int count = 0; |
3603 | unsigned int count = 0; |
2067 | |
3604 | |
2068 | for (pri = NUMPRI; pri--; ) |
3605 | for (pri = NUMPRI; pri--; ) |
2069 | count += pendingcnt [pri]; |
3606 | count += pendingcnt [pri]; |
2070 | |
3607 | |
2071 | return count; |
3608 | return count; |
2072 | } |
3609 | } |
2073 | |
3610 | |
2074 | void noinline |
3611 | ecb_noinline |
|
|
3612 | void |
2075 | ev_invoke_pending (EV_P) |
3613 | ev_invoke_pending (EV_P) |
2076 | { |
3614 | { |
2077 | int pri; |
3615 | pendingpri = NUMPRI; |
2078 | |
3616 | |
2079 | for (pri = NUMPRI; pri--; ) |
3617 | do |
|
|
3618 | { |
|
|
3619 | --pendingpri; |
|
|
3620 | |
|
|
3621 | /* pendingpri possibly gets modified in the inner loop */ |
2080 | while (pendingcnt [pri]) |
3622 | while (pendingcnt [pendingpri]) |
2081 | { |
3623 | { |
2082 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3624 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2083 | |
3625 | |
2084 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2085 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2086 | |
|
|
2087 | p->w->pending = 0; |
3626 | p->w->pending = 0; |
2088 | EV_CB_INVOKE (p->w, p->events); |
3627 | EV_CB_INVOKE (p->w, p->events); |
2089 | EV_FREQUENT_CHECK; |
3628 | EV_FREQUENT_CHECK; |
2090 | } |
3629 | } |
|
|
3630 | } |
|
|
3631 | while (pendingpri); |
2091 | } |
3632 | } |
2092 | |
3633 | |
2093 | #if EV_IDLE_ENABLE |
3634 | #if EV_IDLE_ENABLE |
2094 | /* make idle watchers pending. this handles the "call-idle */ |
3635 | /* make idle watchers pending. this handles the "call-idle */ |
2095 | /* only when higher priorities are idle" logic */ |
3636 | /* only when higher priorities are idle" logic */ |
2096 | inline_size void |
3637 | inline_size void |
2097 | idle_reify (EV_P) |
3638 | idle_reify (EV_P) |
2098 | { |
3639 | { |
2099 | if (expect_false (idleall)) |
3640 | if (ecb_expect_false (idleall)) |
2100 | { |
3641 | { |
2101 | int pri; |
3642 | int pri; |
2102 | |
3643 | |
2103 | for (pri = NUMPRI; pri--; ) |
3644 | for (pri = NUMPRI; pri--; ) |
2104 | { |
3645 | { |
… | |
… | |
2134 | { |
3675 | { |
2135 | ev_at (w) += w->repeat; |
3676 | ev_at (w) += w->repeat; |
2136 | if (ev_at (w) < mn_now) |
3677 | if (ev_at (w) < mn_now) |
2137 | ev_at (w) = mn_now; |
3678 | ev_at (w) = mn_now; |
2138 | |
3679 | |
2139 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3680 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2140 | |
3681 | |
2141 | ANHE_at_cache (timers [HEAP0]); |
3682 | ANHE_at_cache (timers [HEAP0]); |
2142 | downheap (timers, timercnt, HEAP0); |
3683 | downheap (timers, timercnt, HEAP0); |
2143 | } |
3684 | } |
2144 | else |
3685 | else |
… | |
… | |
2152 | feed_reverse_done (EV_A_ EV_TIMER); |
3693 | feed_reverse_done (EV_A_ EV_TIMER); |
2153 | } |
3694 | } |
2154 | } |
3695 | } |
2155 | |
3696 | |
2156 | #if EV_PERIODIC_ENABLE |
3697 | #if EV_PERIODIC_ENABLE |
|
|
3698 | |
|
|
3699 | ecb_noinline |
|
|
3700 | static void |
|
|
3701 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3702 | { |
|
|
3703 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3704 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3705 | |
|
|
3706 | /* the above almost always errs on the low side */ |
|
|
3707 | while (at <= ev_rt_now) |
|
|
3708 | { |
|
|
3709 | ev_tstamp nat = at + w->interval; |
|
|
3710 | |
|
|
3711 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3712 | if (ecb_expect_false (nat == at)) |
|
|
3713 | { |
|
|
3714 | at = ev_rt_now; |
|
|
3715 | break; |
|
|
3716 | } |
|
|
3717 | |
|
|
3718 | at = nat; |
|
|
3719 | } |
|
|
3720 | |
|
|
3721 | ev_at (w) = at; |
|
|
3722 | } |
|
|
3723 | |
2157 | /* make periodics pending */ |
3724 | /* make periodics pending */ |
2158 | inline_size void |
3725 | inline_size void |
2159 | periodics_reify (EV_P) |
3726 | periodics_reify (EV_P) |
2160 | { |
3727 | { |
2161 | EV_FREQUENT_CHECK; |
3728 | EV_FREQUENT_CHECK; |
2162 | |
3729 | |
2163 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3730 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2164 | { |
3731 | { |
2165 | int feed_count = 0; |
|
|
2166 | |
|
|
2167 | do |
3732 | do |
2168 | { |
3733 | { |
2169 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3734 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2170 | |
3735 | |
2171 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3736 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2180 | ANHE_at_cache (periodics [HEAP0]); |
3745 | ANHE_at_cache (periodics [HEAP0]); |
2181 | downheap (periodics, periodiccnt, HEAP0); |
3746 | downheap (periodics, periodiccnt, HEAP0); |
2182 | } |
3747 | } |
2183 | else if (w->interval) |
3748 | else if (w->interval) |
2184 | { |
3749 | { |
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3750 | periodic_recalc (EV_A_ w); |
2186 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2187 | /* this might happen because of floating point inexactness */ |
|
|
2188 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2189 | { |
|
|
2190 | ev_at (w) += w->interval; |
|
|
2191 | |
|
|
2192 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2193 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2194 | /* has effectively asked to get triggered more often than possible */ |
|
|
2195 | if (ev_at (w) < ev_rt_now) |
|
|
2196 | ev_at (w) = ev_rt_now; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | ANHE_at_cache (periodics [HEAP0]); |
3751 | ANHE_at_cache (periodics [HEAP0]); |
2200 | downheap (periodics, periodiccnt, HEAP0); |
3752 | downheap (periodics, periodiccnt, HEAP0); |
2201 | } |
3753 | } |
2202 | else |
3754 | else |
2203 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3755 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2211 | } |
3763 | } |
2212 | } |
3764 | } |
2213 | |
3765 | |
2214 | /* simply recalculate all periodics */ |
3766 | /* simply recalculate all periodics */ |
2215 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3767 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2216 | static void noinline |
3768 | ecb_noinline ecb_cold |
|
|
3769 | static void |
2217 | periodics_reschedule (EV_P) |
3770 | periodics_reschedule (EV_P) |
2218 | { |
3771 | { |
2219 | int i; |
3772 | int i; |
2220 | |
3773 | |
2221 | /* adjust periodics after time jump */ |
3774 | /* adjust periodics after time jump */ |
… | |
… | |
2224 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3777 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2225 | |
3778 | |
2226 | if (w->reschedule_cb) |
3779 | if (w->reschedule_cb) |
2227 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3780 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2228 | else if (w->interval) |
3781 | else if (w->interval) |
2229 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3782 | periodic_recalc (EV_A_ w); |
2230 | |
3783 | |
2231 | ANHE_at_cache (periodics [i]); |
3784 | ANHE_at_cache (periodics [i]); |
2232 | } |
3785 | } |
2233 | |
3786 | |
2234 | reheap (periodics, periodiccnt); |
3787 | reheap (periodics, periodiccnt); |
2235 | } |
3788 | } |
2236 | #endif |
3789 | #endif |
2237 | |
3790 | |
2238 | /* adjust all timers by a given offset */ |
3791 | /* adjust all timers by a given offset */ |
2239 | static void noinline |
3792 | ecb_noinline ecb_cold |
|
|
3793 | static void |
2240 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3794 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2241 | { |
3795 | { |
2242 | int i; |
3796 | int i; |
2243 | |
3797 | |
2244 | for (i = 0; i < timercnt; ++i) |
3798 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2253 | /* also detect if there was a timejump, and act accordingly */ |
3807 | /* also detect if there was a timejump, and act accordingly */ |
2254 | inline_speed void |
3808 | inline_speed void |
2255 | time_update (EV_P_ ev_tstamp max_block) |
3809 | time_update (EV_P_ ev_tstamp max_block) |
2256 | { |
3810 | { |
2257 | #if EV_USE_MONOTONIC |
3811 | #if EV_USE_MONOTONIC |
2258 | if (expect_true (have_monotonic)) |
3812 | if (ecb_expect_true (have_monotonic)) |
2259 | { |
3813 | { |
2260 | int i; |
3814 | int i; |
2261 | ev_tstamp odiff = rtmn_diff; |
3815 | ev_tstamp odiff = rtmn_diff; |
2262 | |
3816 | |
2263 | mn_now = get_clock (); |
3817 | mn_now = get_clock (); |
2264 | |
3818 | |
2265 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3819 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2266 | /* interpolate in the meantime */ |
3820 | /* interpolate in the meantime */ |
2267 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3821 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2268 | { |
3822 | { |
2269 | ev_rt_now = rtmn_diff + mn_now; |
3823 | ev_rt_now = rtmn_diff + mn_now; |
2270 | return; |
3824 | return; |
2271 | } |
3825 | } |
2272 | |
3826 | |
… | |
… | |
2281 | * doesn't hurt either as we only do this on time-jumps or |
3835 | * doesn't hurt either as we only do this on time-jumps or |
2282 | * in the unlikely event of having been preempted here. |
3836 | * in the unlikely event of having been preempted here. |
2283 | */ |
3837 | */ |
2284 | for (i = 4; --i; ) |
3838 | for (i = 4; --i; ) |
2285 | { |
3839 | { |
|
|
3840 | ev_tstamp diff; |
2286 | rtmn_diff = ev_rt_now - mn_now; |
3841 | rtmn_diff = ev_rt_now - mn_now; |
2287 | |
3842 | |
2288 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3843 | diff = odiff - rtmn_diff; |
|
|
3844 | |
|
|
3845 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2289 | return; /* all is well */ |
3846 | return; /* all is well */ |
2290 | |
3847 | |
2291 | ev_rt_now = ev_time (); |
3848 | ev_rt_now = ev_time (); |
2292 | mn_now = get_clock (); |
3849 | mn_now = get_clock (); |
2293 | now_floor = mn_now; |
3850 | now_floor = mn_now; |
… | |
… | |
2302 | else |
3859 | else |
2303 | #endif |
3860 | #endif |
2304 | { |
3861 | { |
2305 | ev_rt_now = ev_time (); |
3862 | ev_rt_now = ev_time (); |
2306 | |
3863 | |
2307 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3864 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2308 | { |
3865 | { |
2309 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3866 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2310 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3867 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2311 | #if EV_PERIODIC_ENABLE |
3868 | #if EV_PERIODIC_ENABLE |
2312 | periodics_reschedule (EV_A); |
3869 | periodics_reschedule (EV_A); |
… | |
… | |
2315 | |
3872 | |
2316 | mn_now = ev_rt_now; |
3873 | mn_now = ev_rt_now; |
2317 | } |
3874 | } |
2318 | } |
3875 | } |
2319 | |
3876 | |
2320 | void |
3877 | int |
2321 | ev_run (EV_P_ int flags) |
3878 | ev_run (EV_P_ int flags) |
2322 | { |
3879 | { |
2323 | #if EV_FEATURE_API |
3880 | #if EV_FEATURE_API |
2324 | ++loop_depth; |
3881 | ++loop_depth; |
2325 | #endif |
3882 | #endif |
… | |
… | |
2335 | #if EV_VERIFY >= 2 |
3892 | #if EV_VERIFY >= 2 |
2336 | ev_verify (EV_A); |
3893 | ev_verify (EV_A); |
2337 | #endif |
3894 | #endif |
2338 | |
3895 | |
2339 | #ifndef _WIN32 |
3896 | #ifndef _WIN32 |
2340 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3897 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2341 | if (expect_false (getpid () != curpid)) |
3898 | if (ecb_expect_false (getpid () != curpid)) |
2342 | { |
3899 | { |
2343 | curpid = getpid (); |
3900 | curpid = getpid (); |
2344 | postfork = 1; |
3901 | postfork = 1; |
2345 | } |
3902 | } |
2346 | #endif |
3903 | #endif |
2347 | |
3904 | |
2348 | #if EV_FORK_ENABLE |
3905 | #if EV_FORK_ENABLE |
2349 | /* we might have forked, so queue fork handlers */ |
3906 | /* we might have forked, so queue fork handlers */ |
2350 | if (expect_false (postfork)) |
3907 | if (ecb_expect_false (postfork)) |
2351 | if (forkcnt) |
3908 | if (forkcnt) |
2352 | { |
3909 | { |
2353 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3910 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2354 | EV_INVOKE_PENDING; |
3911 | EV_INVOKE_PENDING; |
2355 | } |
3912 | } |
2356 | #endif |
3913 | #endif |
2357 | |
3914 | |
2358 | #if EV_PREPARE_ENABLE |
3915 | #if EV_PREPARE_ENABLE |
2359 | /* queue prepare watchers (and execute them) */ |
3916 | /* queue prepare watchers (and execute them) */ |
2360 | if (expect_false (preparecnt)) |
3917 | if (ecb_expect_false (preparecnt)) |
2361 | { |
3918 | { |
2362 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3919 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2363 | EV_INVOKE_PENDING; |
3920 | EV_INVOKE_PENDING; |
2364 | } |
3921 | } |
2365 | #endif |
3922 | #endif |
2366 | |
3923 | |
2367 | if (expect_false (loop_done)) |
3924 | if (ecb_expect_false (loop_done)) |
2368 | break; |
3925 | break; |
2369 | |
3926 | |
2370 | /* we might have forked, so reify kernel state if necessary */ |
3927 | /* we might have forked, so reify kernel state if necessary */ |
2371 | if (expect_false (postfork)) |
3928 | if (ecb_expect_false (postfork)) |
2372 | loop_fork (EV_A); |
3929 | loop_fork (EV_A); |
2373 | |
3930 | |
2374 | /* update fd-related kernel structures */ |
3931 | /* update fd-related kernel structures */ |
2375 | fd_reify (EV_A); |
3932 | fd_reify (EV_A); |
2376 | |
3933 | |
… | |
… | |
2381 | |
3938 | |
2382 | /* remember old timestamp for io_blocktime calculation */ |
3939 | /* remember old timestamp for io_blocktime calculation */ |
2383 | ev_tstamp prev_mn_now = mn_now; |
3940 | ev_tstamp prev_mn_now = mn_now; |
2384 | |
3941 | |
2385 | /* update time to cancel out callback processing overhead */ |
3942 | /* update time to cancel out callback processing overhead */ |
2386 | time_update (EV_A_ 1e100); |
3943 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
2387 | |
3944 | |
|
|
3945 | /* from now on, we want a pipe-wake-up */ |
|
|
3946 | pipe_write_wanted = 1; |
|
|
3947 | |
|
|
3948 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3949 | |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3950 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2389 | { |
3951 | { |
2390 | waittime = MAX_BLOCKTIME; |
3952 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
2391 | |
3953 | |
2392 | if (timercnt) |
3954 | if (timercnt) |
2393 | { |
3955 | { |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3956 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2395 | if (waittime > to) waittime = to; |
3957 | if (waittime > to) waittime = to; |
2396 | } |
3958 | } |
2397 | |
3959 | |
2398 | #if EV_PERIODIC_ENABLE |
3960 | #if EV_PERIODIC_ENABLE |
2399 | if (periodiccnt) |
3961 | if (periodiccnt) |
2400 | { |
3962 | { |
2401 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3963 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2402 | if (waittime > to) waittime = to; |
3964 | if (waittime > to) waittime = to; |
2403 | } |
3965 | } |
2404 | #endif |
3966 | #endif |
2405 | |
3967 | |
2406 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3968 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2407 | if (expect_false (waittime < timeout_blocktime)) |
3969 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2408 | waittime = timeout_blocktime; |
3970 | waittime = timeout_blocktime; |
2409 | |
3971 | |
|
|
3972 | /* now there are two more special cases left, either we have |
|
|
3973 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3974 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3975 | * amount of time for some event loop backends. |
|
|
3976 | */ |
|
|
3977 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3978 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3979 | ? EV_TS_CONST (0.) |
|
|
3980 | : backend_mintime; |
|
|
3981 | |
2410 | /* extra check because io_blocktime is commonly 0 */ |
3982 | /* extra check because io_blocktime is commonly 0 */ |
2411 | if (expect_false (io_blocktime)) |
3983 | if (ecb_expect_false (io_blocktime)) |
2412 | { |
3984 | { |
2413 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3985 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2414 | |
3986 | |
2415 | if (sleeptime > waittime - backend_fudge) |
3987 | if (sleeptime > waittime - backend_mintime) |
2416 | sleeptime = waittime - backend_fudge; |
3988 | sleeptime = waittime - backend_mintime; |
2417 | |
3989 | |
2418 | if (expect_true (sleeptime > 0.)) |
3990 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2419 | { |
3991 | { |
2420 | ev_sleep (sleeptime); |
3992 | ev_sleep (sleeptime); |
2421 | waittime -= sleeptime; |
3993 | waittime -= sleeptime; |
2422 | } |
3994 | } |
2423 | } |
3995 | } |
… | |
… | |
2428 | #endif |
4000 | #endif |
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
4001 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2430 | backend_poll (EV_A_ waittime); |
4002 | backend_poll (EV_A_ waittime); |
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
4003 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2432 | |
4004 | |
|
|
4005 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
4006 | |
|
|
4007 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
4008 | if (pipe_write_skipped) |
|
|
4009 | { |
|
|
4010 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
4011 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
4012 | } |
|
|
4013 | |
2433 | /* update ev_rt_now, do magic */ |
4014 | /* update ev_rt_now, do magic */ |
2434 | time_update (EV_A_ waittime + sleeptime); |
4015 | time_update (EV_A_ waittime + sleeptime); |
2435 | } |
4016 | } |
2436 | |
4017 | |
2437 | /* queue pending timers and reschedule them */ |
4018 | /* queue pending timers and reschedule them */ |
… | |
… | |
2445 | idle_reify (EV_A); |
4026 | idle_reify (EV_A); |
2446 | #endif |
4027 | #endif |
2447 | |
4028 | |
2448 | #if EV_CHECK_ENABLE |
4029 | #if EV_CHECK_ENABLE |
2449 | /* queue check watchers, to be executed first */ |
4030 | /* queue check watchers, to be executed first */ |
2450 | if (expect_false (checkcnt)) |
4031 | if (ecb_expect_false (checkcnt)) |
2451 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4032 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2452 | #endif |
4033 | #endif |
2453 | |
4034 | |
2454 | EV_INVOKE_PENDING; |
4035 | EV_INVOKE_PENDING; |
2455 | } |
4036 | } |
2456 | while (expect_true ( |
4037 | while (ecb_expect_true ( |
2457 | activecnt |
4038 | activecnt |
2458 | && !loop_done |
4039 | && !loop_done |
2459 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4040 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2460 | )); |
4041 | )); |
2461 | |
4042 | |
… | |
… | |
2463 | loop_done = EVBREAK_CANCEL; |
4044 | loop_done = EVBREAK_CANCEL; |
2464 | |
4045 | |
2465 | #if EV_FEATURE_API |
4046 | #if EV_FEATURE_API |
2466 | --loop_depth; |
4047 | --loop_depth; |
2467 | #endif |
4048 | #endif |
2468 | } |
|
|
2469 | |
4049 | |
|
|
4050 | return activecnt; |
|
|
4051 | } |
|
|
4052 | |
2470 | void |
4053 | void |
2471 | ev_break (EV_P_ int how) |
4054 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2472 | { |
4055 | { |
2473 | loop_done = how; |
4056 | loop_done = how; |
2474 | } |
4057 | } |
2475 | |
4058 | |
2476 | void |
4059 | void |
2477 | ev_ref (EV_P) |
4060 | ev_ref (EV_P) EV_NOEXCEPT |
2478 | { |
4061 | { |
2479 | ++activecnt; |
4062 | ++activecnt; |
2480 | } |
4063 | } |
2481 | |
4064 | |
2482 | void |
4065 | void |
2483 | ev_unref (EV_P) |
4066 | ev_unref (EV_P) EV_NOEXCEPT |
2484 | { |
4067 | { |
2485 | --activecnt; |
4068 | --activecnt; |
2486 | } |
4069 | } |
2487 | |
4070 | |
2488 | void |
4071 | void |
2489 | ev_now_update (EV_P) |
4072 | ev_now_update (EV_P) EV_NOEXCEPT |
2490 | { |
4073 | { |
2491 | time_update (EV_A_ 1e100); |
4074 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2492 | } |
4075 | } |
2493 | |
4076 | |
2494 | void |
4077 | void |
2495 | ev_suspend (EV_P) |
4078 | ev_suspend (EV_P) EV_NOEXCEPT |
2496 | { |
4079 | { |
2497 | ev_now_update (EV_A); |
4080 | ev_now_update (EV_A); |
2498 | } |
4081 | } |
2499 | |
4082 | |
2500 | void |
4083 | void |
2501 | ev_resume (EV_P) |
4084 | ev_resume (EV_P) EV_NOEXCEPT |
2502 | { |
4085 | { |
2503 | ev_tstamp mn_prev = mn_now; |
4086 | ev_tstamp mn_prev = mn_now; |
2504 | |
4087 | |
2505 | ev_now_update (EV_A); |
4088 | ev_now_update (EV_A); |
2506 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4089 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2523 | inline_size void |
4106 | inline_size void |
2524 | wlist_del (WL *head, WL elem) |
4107 | wlist_del (WL *head, WL elem) |
2525 | { |
4108 | { |
2526 | while (*head) |
4109 | while (*head) |
2527 | { |
4110 | { |
2528 | if (expect_true (*head == elem)) |
4111 | if (ecb_expect_true (*head == elem)) |
2529 | { |
4112 | { |
2530 | *head = elem->next; |
4113 | *head = elem->next; |
2531 | break; |
4114 | break; |
2532 | } |
4115 | } |
2533 | |
4116 | |
… | |
… | |
2545 | w->pending = 0; |
4128 | w->pending = 0; |
2546 | } |
4129 | } |
2547 | } |
4130 | } |
2548 | |
4131 | |
2549 | int |
4132 | int |
2550 | ev_clear_pending (EV_P_ void *w) |
4133 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2551 | { |
4134 | { |
2552 | W w_ = (W)w; |
4135 | W w_ = (W)w; |
2553 | int pending = w_->pending; |
4136 | int pending = w_->pending; |
2554 | |
4137 | |
2555 | if (expect_true (pending)) |
4138 | if (ecb_expect_true (pending)) |
2556 | { |
4139 | { |
2557 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4140 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2558 | p->w = (W)&pending_w; |
4141 | p->w = (W)&pending_w; |
2559 | w_->pending = 0; |
4142 | w_->pending = 0; |
2560 | return p->events; |
4143 | return p->events; |
… | |
… | |
2587 | w->active = 0; |
4170 | w->active = 0; |
2588 | } |
4171 | } |
2589 | |
4172 | |
2590 | /*****************************************************************************/ |
4173 | /*****************************************************************************/ |
2591 | |
4174 | |
2592 | void noinline |
4175 | ecb_noinline |
|
|
4176 | void |
2593 | ev_io_start (EV_P_ ev_io *w) |
4177 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2594 | { |
4178 | { |
2595 | int fd = w->fd; |
4179 | int fd = w->fd; |
2596 | |
4180 | |
2597 | if (expect_false (ev_is_active (w))) |
4181 | if (ecb_expect_false (ev_is_active (w))) |
2598 | return; |
4182 | return; |
2599 | |
4183 | |
2600 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4184 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2601 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4185 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2602 | |
4186 | |
|
|
4187 | #if EV_VERIFY >= 2 |
|
|
4188 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4189 | #endif |
2603 | EV_FREQUENT_CHECK; |
4190 | EV_FREQUENT_CHECK; |
2604 | |
4191 | |
2605 | ev_start (EV_A_ (W)w, 1); |
4192 | ev_start (EV_A_ (W)w, 1); |
2606 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4193 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2607 | wlist_add (&anfds[fd].head, (WL)w); |
4194 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4195 | |
|
|
4196 | /* common bug, apparently */ |
|
|
4197 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2608 | |
4198 | |
2609 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4199 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2610 | w->events &= ~EV__IOFDSET; |
4200 | w->events &= ~EV__IOFDSET; |
2611 | |
4201 | |
2612 | EV_FREQUENT_CHECK; |
4202 | EV_FREQUENT_CHECK; |
2613 | } |
4203 | } |
2614 | |
4204 | |
2615 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
2616 | ev_io_stop (EV_P_ ev_io *w) |
4207 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2617 | { |
4208 | { |
2618 | clear_pending (EV_A_ (W)w); |
4209 | clear_pending (EV_A_ (W)w); |
2619 | if (expect_false (!ev_is_active (w))) |
4210 | if (ecb_expect_false (!ev_is_active (w))) |
2620 | return; |
4211 | return; |
2621 | |
4212 | |
2622 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4213 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2623 | |
4214 | |
|
|
4215 | #if EV_VERIFY >= 2 |
|
|
4216 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4217 | #endif |
2624 | EV_FREQUENT_CHECK; |
4218 | EV_FREQUENT_CHECK; |
2625 | |
4219 | |
2626 | wlist_del (&anfds[w->fd].head, (WL)w); |
4220 | wlist_del (&anfds[w->fd].head, (WL)w); |
2627 | ev_stop (EV_A_ (W)w); |
4221 | ev_stop (EV_A_ (W)w); |
2628 | |
4222 | |
2629 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4223 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2630 | |
4224 | |
2631 | EV_FREQUENT_CHECK; |
4225 | EV_FREQUENT_CHECK; |
2632 | } |
4226 | } |
2633 | |
4227 | |
2634 | void noinline |
4228 | ecb_noinline |
|
|
4229 | void |
2635 | ev_timer_start (EV_P_ ev_timer *w) |
4230 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2636 | { |
4231 | { |
2637 | if (expect_false (ev_is_active (w))) |
4232 | if (ecb_expect_false (ev_is_active (w))) |
2638 | return; |
4233 | return; |
2639 | |
4234 | |
2640 | ev_at (w) += mn_now; |
4235 | ev_at (w) += mn_now; |
2641 | |
4236 | |
2642 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4237 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2643 | |
4238 | |
2644 | EV_FREQUENT_CHECK; |
4239 | EV_FREQUENT_CHECK; |
2645 | |
4240 | |
2646 | ++timercnt; |
4241 | ++timercnt; |
2647 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4242 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2648 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4243 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2649 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4244 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2650 | ANHE_at_cache (timers [ev_active (w)]); |
4245 | ANHE_at_cache (timers [ev_active (w)]); |
2651 | upheap (timers, ev_active (w)); |
4246 | upheap (timers, ev_active (w)); |
2652 | |
4247 | |
2653 | EV_FREQUENT_CHECK; |
4248 | EV_FREQUENT_CHECK; |
2654 | |
4249 | |
2655 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4250 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2656 | } |
4251 | } |
2657 | |
4252 | |
2658 | void noinline |
4253 | ecb_noinline |
|
|
4254 | void |
2659 | ev_timer_stop (EV_P_ ev_timer *w) |
4255 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2660 | { |
4256 | { |
2661 | clear_pending (EV_A_ (W)w); |
4257 | clear_pending (EV_A_ (W)w); |
2662 | if (expect_false (!ev_is_active (w))) |
4258 | if (ecb_expect_false (!ev_is_active (w))) |
2663 | return; |
4259 | return; |
2664 | |
4260 | |
2665 | EV_FREQUENT_CHECK; |
4261 | EV_FREQUENT_CHECK; |
2666 | |
4262 | |
2667 | { |
4263 | { |
… | |
… | |
2669 | |
4265 | |
2670 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4266 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2671 | |
4267 | |
2672 | --timercnt; |
4268 | --timercnt; |
2673 | |
4269 | |
2674 | if (expect_true (active < timercnt + HEAP0)) |
4270 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2675 | { |
4271 | { |
2676 | timers [active] = timers [timercnt + HEAP0]; |
4272 | timers [active] = timers [timercnt + HEAP0]; |
2677 | adjustheap (timers, timercnt, active); |
4273 | adjustheap (timers, timercnt, active); |
2678 | } |
4274 | } |
2679 | } |
4275 | } |
… | |
… | |
2683 | ev_stop (EV_A_ (W)w); |
4279 | ev_stop (EV_A_ (W)w); |
2684 | |
4280 | |
2685 | EV_FREQUENT_CHECK; |
4281 | EV_FREQUENT_CHECK; |
2686 | } |
4282 | } |
2687 | |
4283 | |
2688 | void noinline |
4284 | ecb_noinline |
|
|
4285 | void |
2689 | ev_timer_again (EV_P_ ev_timer *w) |
4286 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2690 | { |
4287 | { |
2691 | EV_FREQUENT_CHECK; |
4288 | EV_FREQUENT_CHECK; |
|
|
4289 | |
|
|
4290 | clear_pending (EV_A_ (W)w); |
2692 | |
4291 | |
2693 | if (ev_is_active (w)) |
4292 | if (ev_is_active (w)) |
2694 | { |
4293 | { |
2695 | if (w->repeat) |
4294 | if (w->repeat) |
2696 | { |
4295 | { |
… | |
… | |
2709 | |
4308 | |
2710 | EV_FREQUENT_CHECK; |
4309 | EV_FREQUENT_CHECK; |
2711 | } |
4310 | } |
2712 | |
4311 | |
2713 | ev_tstamp |
4312 | ev_tstamp |
2714 | ev_timer_remaining (EV_P_ ev_timer *w) |
4313 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2715 | { |
4314 | { |
2716 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4315 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2717 | } |
4316 | } |
2718 | |
4317 | |
2719 | #if EV_PERIODIC_ENABLE |
4318 | #if EV_PERIODIC_ENABLE |
2720 | void noinline |
4319 | ecb_noinline |
|
|
4320 | void |
2721 | ev_periodic_start (EV_P_ ev_periodic *w) |
4321 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2722 | { |
4322 | { |
2723 | if (expect_false (ev_is_active (w))) |
4323 | if (ecb_expect_false (ev_is_active (w))) |
2724 | return; |
4324 | return; |
|
|
4325 | |
|
|
4326 | #if EV_USE_TIMERFD |
|
|
4327 | if (timerfd == -2) |
|
|
4328 | evtimerfd_init (EV_A); |
|
|
4329 | #endif |
2725 | |
4330 | |
2726 | if (w->reschedule_cb) |
4331 | if (w->reschedule_cb) |
2727 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4332 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2728 | else if (w->interval) |
4333 | else if (w->interval) |
2729 | { |
4334 | { |
2730 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4335 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2731 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4336 | periodic_recalc (EV_A_ w); |
2732 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2733 | } |
4337 | } |
2734 | else |
4338 | else |
2735 | ev_at (w) = w->offset; |
4339 | ev_at (w) = w->offset; |
2736 | |
4340 | |
2737 | EV_FREQUENT_CHECK; |
4341 | EV_FREQUENT_CHECK; |
2738 | |
4342 | |
2739 | ++periodiccnt; |
4343 | ++periodiccnt; |
2740 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4344 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2741 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4345 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2742 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4346 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2743 | ANHE_at_cache (periodics [ev_active (w)]); |
4347 | ANHE_at_cache (periodics [ev_active (w)]); |
2744 | upheap (periodics, ev_active (w)); |
4348 | upheap (periodics, ev_active (w)); |
2745 | |
4349 | |
2746 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
2747 | |
4351 | |
2748 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4352 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2749 | } |
4353 | } |
2750 | |
4354 | |
2751 | void noinline |
4355 | ecb_noinline |
|
|
4356 | void |
2752 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4357 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2753 | { |
4358 | { |
2754 | clear_pending (EV_A_ (W)w); |
4359 | clear_pending (EV_A_ (W)w); |
2755 | if (expect_false (!ev_is_active (w))) |
4360 | if (ecb_expect_false (!ev_is_active (w))) |
2756 | return; |
4361 | return; |
2757 | |
4362 | |
2758 | EV_FREQUENT_CHECK; |
4363 | EV_FREQUENT_CHECK; |
2759 | |
4364 | |
2760 | { |
4365 | { |
… | |
… | |
2762 | |
4367 | |
2763 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4368 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2764 | |
4369 | |
2765 | --periodiccnt; |
4370 | --periodiccnt; |
2766 | |
4371 | |
2767 | if (expect_true (active < periodiccnt + HEAP0)) |
4372 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2768 | { |
4373 | { |
2769 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4374 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2770 | adjustheap (periodics, periodiccnt, active); |
4375 | adjustheap (periodics, periodiccnt, active); |
2771 | } |
4376 | } |
2772 | } |
4377 | } |
… | |
… | |
2774 | ev_stop (EV_A_ (W)w); |
4379 | ev_stop (EV_A_ (W)w); |
2775 | |
4380 | |
2776 | EV_FREQUENT_CHECK; |
4381 | EV_FREQUENT_CHECK; |
2777 | } |
4382 | } |
2778 | |
4383 | |
2779 | void noinline |
4384 | ecb_noinline |
|
|
4385 | void |
2780 | ev_periodic_again (EV_P_ ev_periodic *w) |
4386 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2781 | { |
4387 | { |
2782 | /* TODO: use adjustheap and recalculation */ |
4388 | /* TODO: use adjustheap and recalculation */ |
2783 | ev_periodic_stop (EV_A_ w); |
4389 | ev_periodic_stop (EV_A_ w); |
2784 | ev_periodic_start (EV_A_ w); |
4390 | ev_periodic_start (EV_A_ w); |
2785 | } |
4391 | } |
… | |
… | |
2789 | # define SA_RESTART 0 |
4395 | # define SA_RESTART 0 |
2790 | #endif |
4396 | #endif |
2791 | |
4397 | |
2792 | #if EV_SIGNAL_ENABLE |
4398 | #if EV_SIGNAL_ENABLE |
2793 | |
4399 | |
2794 | void noinline |
4400 | ecb_noinline |
|
|
4401 | void |
2795 | ev_signal_start (EV_P_ ev_signal *w) |
4402 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2796 | { |
4403 | { |
2797 | if (expect_false (ev_is_active (w))) |
4404 | if (ecb_expect_false (ev_is_active (w))) |
2798 | return; |
4405 | return; |
2799 | |
4406 | |
2800 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4407 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2801 | |
4408 | |
2802 | #if EV_MULTIPLICITY |
4409 | #if EV_MULTIPLICITY |
2803 | assert (("libev: a signal must not be attached to two different loops", |
4410 | assert (("libev: a signal must not be attached to two different loops", |
2804 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4411 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2805 | |
4412 | |
2806 | signals [w->signum - 1].loop = EV_A; |
4413 | signals [w->signum - 1].loop = EV_A; |
|
|
4414 | ECB_MEMORY_FENCE_RELEASE; |
2807 | #endif |
4415 | #endif |
2808 | |
4416 | |
2809 | EV_FREQUENT_CHECK; |
4417 | EV_FREQUENT_CHECK; |
2810 | |
4418 | |
2811 | #if EV_USE_SIGNALFD |
4419 | #if EV_USE_SIGNALFD |
… | |
… | |
2858 | sa.sa_handler = ev_sighandler; |
4466 | sa.sa_handler = ev_sighandler; |
2859 | sigfillset (&sa.sa_mask); |
4467 | sigfillset (&sa.sa_mask); |
2860 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4468 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2861 | sigaction (w->signum, &sa, 0); |
4469 | sigaction (w->signum, &sa, 0); |
2862 | |
4470 | |
|
|
4471 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4472 | { |
2863 | sigemptyset (&sa.sa_mask); |
4473 | sigemptyset (&sa.sa_mask); |
2864 | sigaddset (&sa.sa_mask, w->signum); |
4474 | sigaddset (&sa.sa_mask, w->signum); |
2865 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4475 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4476 | } |
2866 | #endif |
4477 | #endif |
2867 | } |
4478 | } |
2868 | |
4479 | |
2869 | EV_FREQUENT_CHECK; |
4480 | EV_FREQUENT_CHECK; |
2870 | } |
4481 | } |
2871 | |
4482 | |
2872 | void noinline |
4483 | ecb_noinline |
|
|
4484 | void |
2873 | ev_signal_stop (EV_P_ ev_signal *w) |
4485 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2874 | { |
4486 | { |
2875 | clear_pending (EV_A_ (W)w); |
4487 | clear_pending (EV_A_ (W)w); |
2876 | if (expect_false (!ev_is_active (w))) |
4488 | if (ecb_expect_false (!ev_is_active (w))) |
2877 | return; |
4489 | return; |
2878 | |
4490 | |
2879 | EV_FREQUENT_CHECK; |
4491 | EV_FREQUENT_CHECK; |
2880 | |
4492 | |
2881 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4493 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
2909 | #endif |
4521 | #endif |
2910 | |
4522 | |
2911 | #if EV_CHILD_ENABLE |
4523 | #if EV_CHILD_ENABLE |
2912 | |
4524 | |
2913 | void |
4525 | void |
2914 | ev_child_start (EV_P_ ev_child *w) |
4526 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2915 | { |
4527 | { |
2916 | #if EV_MULTIPLICITY |
4528 | #if EV_MULTIPLICITY |
2917 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4529 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2918 | #endif |
4530 | #endif |
2919 | if (expect_false (ev_is_active (w))) |
4531 | if (ecb_expect_false (ev_is_active (w))) |
2920 | return; |
4532 | return; |
2921 | |
4533 | |
2922 | EV_FREQUENT_CHECK; |
4534 | EV_FREQUENT_CHECK; |
2923 | |
4535 | |
2924 | ev_start (EV_A_ (W)w, 1); |
4536 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
2926 | |
4538 | |
2927 | EV_FREQUENT_CHECK; |
4539 | EV_FREQUENT_CHECK; |
2928 | } |
4540 | } |
2929 | |
4541 | |
2930 | void |
4542 | void |
2931 | ev_child_stop (EV_P_ ev_child *w) |
4543 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2932 | { |
4544 | { |
2933 | clear_pending (EV_A_ (W)w); |
4545 | clear_pending (EV_A_ (W)w); |
2934 | if (expect_false (!ev_is_active (w))) |
4546 | if (ecb_expect_false (!ev_is_active (w))) |
2935 | return; |
4547 | return; |
2936 | |
4548 | |
2937 | EV_FREQUENT_CHECK; |
4549 | EV_FREQUENT_CHECK; |
2938 | |
4550 | |
2939 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4551 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
2953 | |
4565 | |
2954 | #define DEF_STAT_INTERVAL 5.0074891 |
4566 | #define DEF_STAT_INTERVAL 5.0074891 |
2955 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4567 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2956 | #define MIN_STAT_INTERVAL 0.1074891 |
4568 | #define MIN_STAT_INTERVAL 0.1074891 |
2957 | |
4569 | |
2958 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4570 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2959 | |
4571 | |
2960 | #if EV_USE_INOTIFY |
4572 | #if EV_USE_INOTIFY |
2961 | |
4573 | |
2962 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4574 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
2963 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4575 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2964 | |
4576 | |
2965 | static void noinline |
4577 | ecb_noinline |
|
|
4578 | static void |
2966 | infy_add (EV_P_ ev_stat *w) |
4579 | infy_add (EV_P_ ev_stat *w) |
2967 | { |
4580 | { |
2968 | 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); |
4581 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4582 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4583 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4584 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2969 | |
4585 | |
2970 | if (w->wd >= 0) |
4586 | if (w->wd >= 0) |
2971 | { |
4587 | { |
2972 | struct statfs sfs; |
4588 | struct statfs sfs; |
2973 | |
4589 | |
… | |
… | |
2977 | |
4593 | |
2978 | if (!fs_2625) |
4594 | if (!fs_2625) |
2979 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4595 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2980 | else if (!statfs (w->path, &sfs) |
4596 | else if (!statfs (w->path, &sfs) |
2981 | && (sfs.f_type == 0x1373 /* devfs */ |
4597 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4598 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4599 | || sfs.f_type == 0x4d44 /* msdos */ |
2982 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4600 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4601 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4602 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4603 | || sfs.f_type == 0x5346544e /* ntfs */ |
2983 | || sfs.f_type == 0x3153464a /* jfs */ |
4604 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4605 | || sfs.f_type == 0x9123683e /* btrfs */ |
2984 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4606 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2985 | || sfs.f_type == 0x01021994 /* tempfs */ |
4607 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2986 | || sfs.f_type == 0x58465342 /* xfs */)) |
4608 | || sfs.f_type == 0x58465342 /* xfs */)) |
2987 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4609 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2988 | else |
4610 | else |
2989 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4611 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2990 | } |
4612 | } |
… | |
… | |
3011 | if (!pend || pend == path) |
4633 | if (!pend || pend == path) |
3012 | break; |
4634 | break; |
3013 | |
4635 | |
3014 | *pend = 0; |
4636 | *pend = 0; |
3015 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4637 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3016 | } |
4638 | } |
3017 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4639 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3018 | } |
4640 | } |
3019 | } |
4641 | } |
3020 | |
4642 | |
3021 | if (w->wd >= 0) |
4643 | if (w->wd >= 0) |
… | |
… | |
3025 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4647 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3026 | ev_timer_again (EV_A_ &w->timer); |
4648 | ev_timer_again (EV_A_ &w->timer); |
3027 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4649 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3028 | } |
4650 | } |
3029 | |
4651 | |
3030 | static void noinline |
4652 | ecb_noinline |
|
|
4653 | static void |
3031 | infy_del (EV_P_ ev_stat *w) |
4654 | infy_del (EV_P_ ev_stat *w) |
3032 | { |
4655 | { |
3033 | int slot; |
4656 | int slot; |
3034 | int wd = w->wd; |
4657 | int wd = w->wd; |
3035 | |
4658 | |
… | |
… | |
3042 | |
4665 | |
3043 | /* remove this watcher, if others are watching it, they will rearm */ |
4666 | /* remove this watcher, if others are watching it, they will rearm */ |
3044 | inotify_rm_watch (fs_fd, wd); |
4667 | inotify_rm_watch (fs_fd, wd); |
3045 | } |
4668 | } |
3046 | |
4669 | |
3047 | static void noinline |
4670 | ecb_noinline |
|
|
4671 | static void |
3048 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4672 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3049 | { |
4673 | { |
3050 | if (slot < 0) |
4674 | if (slot < 0) |
3051 | /* overflow, need to check for all hash slots */ |
4675 | /* overflow, need to check for all hash slots */ |
3052 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4676 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4712 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
4713 | ofs += sizeof (struct inotify_event) + ev->len; |
3090 | } |
4714 | } |
3091 | } |
4715 | } |
3092 | |
4716 | |
3093 | inline_size void |
4717 | inline_size ecb_cold |
|
|
4718 | void |
3094 | ev_check_2625 (EV_P) |
4719 | ev_check_2625 (EV_P) |
3095 | { |
4720 | { |
3096 | /* kernels < 2.6.25 are borked |
4721 | /* kernels < 2.6.25 are borked |
3097 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4722 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3098 | */ |
4723 | */ |
… | |
… | |
3103 | } |
4728 | } |
3104 | |
4729 | |
3105 | inline_size int |
4730 | inline_size int |
3106 | infy_newfd (void) |
4731 | infy_newfd (void) |
3107 | { |
4732 | { |
3108 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4733 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3109 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4734 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3110 | if (fd >= 0) |
4735 | if (fd >= 0) |
3111 | return fd; |
4736 | return fd; |
3112 | #endif |
4737 | #endif |
3113 | return inotify_init (); |
4738 | return inotify_init (); |
… | |
… | |
3188 | #else |
4813 | #else |
3189 | # define EV_LSTAT(p,b) lstat (p, b) |
4814 | # define EV_LSTAT(p,b) lstat (p, b) |
3190 | #endif |
4815 | #endif |
3191 | |
4816 | |
3192 | void |
4817 | void |
3193 | ev_stat_stat (EV_P_ ev_stat *w) |
4818 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3194 | { |
4819 | { |
3195 | if (lstat (w->path, &w->attr) < 0) |
4820 | if (lstat (w->path, &w->attr) < 0) |
3196 | w->attr.st_nlink = 0; |
4821 | w->attr.st_nlink = 0; |
3197 | else if (!w->attr.st_nlink) |
4822 | else if (!w->attr.st_nlink) |
3198 | w->attr.st_nlink = 1; |
4823 | w->attr.st_nlink = 1; |
3199 | } |
4824 | } |
3200 | |
4825 | |
3201 | static void noinline |
4826 | ecb_noinline |
|
|
4827 | static void |
3202 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4828 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3203 | { |
4829 | { |
3204 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4830 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3205 | |
4831 | |
3206 | ev_statdata prev = w->attr; |
4832 | ev_statdata prev = w->attr; |
… | |
… | |
3237 | ev_feed_event (EV_A_ w, EV_STAT); |
4863 | ev_feed_event (EV_A_ w, EV_STAT); |
3238 | } |
4864 | } |
3239 | } |
4865 | } |
3240 | |
4866 | |
3241 | void |
4867 | void |
3242 | ev_stat_start (EV_P_ ev_stat *w) |
4868 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3243 | { |
4869 | { |
3244 | if (expect_false (ev_is_active (w))) |
4870 | if (ecb_expect_false (ev_is_active (w))) |
3245 | return; |
4871 | return; |
3246 | |
4872 | |
3247 | ev_stat_stat (EV_A_ w); |
4873 | ev_stat_stat (EV_A_ w); |
3248 | |
4874 | |
3249 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4875 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3268 | |
4894 | |
3269 | EV_FREQUENT_CHECK; |
4895 | EV_FREQUENT_CHECK; |
3270 | } |
4896 | } |
3271 | |
4897 | |
3272 | void |
4898 | void |
3273 | ev_stat_stop (EV_P_ ev_stat *w) |
4899 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3274 | { |
4900 | { |
3275 | clear_pending (EV_A_ (W)w); |
4901 | clear_pending (EV_A_ (W)w); |
3276 | if (expect_false (!ev_is_active (w))) |
4902 | if (ecb_expect_false (!ev_is_active (w))) |
3277 | return; |
4903 | return; |
3278 | |
4904 | |
3279 | EV_FREQUENT_CHECK; |
4905 | EV_FREQUENT_CHECK; |
3280 | |
4906 | |
3281 | #if EV_USE_INOTIFY |
4907 | #if EV_USE_INOTIFY |
… | |
… | |
3294 | } |
4920 | } |
3295 | #endif |
4921 | #endif |
3296 | |
4922 | |
3297 | #if EV_IDLE_ENABLE |
4923 | #if EV_IDLE_ENABLE |
3298 | void |
4924 | void |
3299 | ev_idle_start (EV_P_ ev_idle *w) |
4925 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3300 | { |
4926 | { |
3301 | if (expect_false (ev_is_active (w))) |
4927 | if (ecb_expect_false (ev_is_active (w))) |
3302 | return; |
4928 | return; |
3303 | |
4929 | |
3304 | pri_adjust (EV_A_ (W)w); |
4930 | pri_adjust (EV_A_ (W)w); |
3305 | |
4931 | |
3306 | EV_FREQUENT_CHECK; |
4932 | EV_FREQUENT_CHECK; |
… | |
… | |
3309 | int active = ++idlecnt [ABSPRI (w)]; |
4935 | int active = ++idlecnt [ABSPRI (w)]; |
3310 | |
4936 | |
3311 | ++idleall; |
4937 | ++idleall; |
3312 | ev_start (EV_A_ (W)w, active); |
4938 | ev_start (EV_A_ (W)w, active); |
3313 | |
4939 | |
3314 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4940 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3315 | idles [ABSPRI (w)][active - 1] = w; |
4941 | idles [ABSPRI (w)][active - 1] = w; |
3316 | } |
4942 | } |
3317 | |
4943 | |
3318 | EV_FREQUENT_CHECK; |
4944 | EV_FREQUENT_CHECK; |
3319 | } |
4945 | } |
3320 | |
4946 | |
3321 | void |
4947 | void |
3322 | ev_idle_stop (EV_P_ ev_idle *w) |
4948 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3323 | { |
4949 | { |
3324 | clear_pending (EV_A_ (W)w); |
4950 | clear_pending (EV_A_ (W)w); |
3325 | if (expect_false (!ev_is_active (w))) |
4951 | if (ecb_expect_false (!ev_is_active (w))) |
3326 | return; |
4952 | return; |
3327 | |
4953 | |
3328 | EV_FREQUENT_CHECK; |
4954 | EV_FREQUENT_CHECK; |
3329 | |
4955 | |
3330 | { |
4956 | { |
… | |
… | |
3341 | } |
4967 | } |
3342 | #endif |
4968 | #endif |
3343 | |
4969 | |
3344 | #if EV_PREPARE_ENABLE |
4970 | #if EV_PREPARE_ENABLE |
3345 | void |
4971 | void |
3346 | ev_prepare_start (EV_P_ ev_prepare *w) |
4972 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3347 | { |
4973 | { |
3348 | if (expect_false (ev_is_active (w))) |
4974 | if (ecb_expect_false (ev_is_active (w))) |
3349 | return; |
4975 | return; |
3350 | |
4976 | |
3351 | EV_FREQUENT_CHECK; |
4977 | EV_FREQUENT_CHECK; |
3352 | |
4978 | |
3353 | ev_start (EV_A_ (W)w, ++preparecnt); |
4979 | ev_start (EV_A_ (W)w, ++preparecnt); |
3354 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4980 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3355 | prepares [preparecnt - 1] = w; |
4981 | prepares [preparecnt - 1] = w; |
3356 | |
4982 | |
3357 | EV_FREQUENT_CHECK; |
4983 | EV_FREQUENT_CHECK; |
3358 | } |
4984 | } |
3359 | |
4985 | |
3360 | void |
4986 | void |
3361 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4987 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3362 | { |
4988 | { |
3363 | clear_pending (EV_A_ (W)w); |
4989 | clear_pending (EV_A_ (W)w); |
3364 | if (expect_false (!ev_is_active (w))) |
4990 | if (ecb_expect_false (!ev_is_active (w))) |
3365 | return; |
4991 | return; |
3366 | |
4992 | |
3367 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
3368 | |
4994 | |
3369 | { |
4995 | { |
… | |
… | |
3379 | } |
5005 | } |
3380 | #endif |
5006 | #endif |
3381 | |
5007 | |
3382 | #if EV_CHECK_ENABLE |
5008 | #if EV_CHECK_ENABLE |
3383 | void |
5009 | void |
3384 | ev_check_start (EV_P_ ev_check *w) |
5010 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3385 | { |
5011 | { |
3386 | if (expect_false (ev_is_active (w))) |
5012 | if (ecb_expect_false (ev_is_active (w))) |
3387 | return; |
5013 | return; |
3388 | |
5014 | |
3389 | EV_FREQUENT_CHECK; |
5015 | EV_FREQUENT_CHECK; |
3390 | |
5016 | |
3391 | ev_start (EV_A_ (W)w, ++checkcnt); |
5017 | ev_start (EV_A_ (W)w, ++checkcnt); |
3392 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5018 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3393 | checks [checkcnt - 1] = w; |
5019 | checks [checkcnt - 1] = w; |
3394 | |
5020 | |
3395 | EV_FREQUENT_CHECK; |
5021 | EV_FREQUENT_CHECK; |
3396 | } |
5022 | } |
3397 | |
5023 | |
3398 | void |
5024 | void |
3399 | ev_check_stop (EV_P_ ev_check *w) |
5025 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3400 | { |
5026 | { |
3401 | clear_pending (EV_A_ (W)w); |
5027 | clear_pending (EV_A_ (W)w); |
3402 | if (expect_false (!ev_is_active (w))) |
5028 | if (ecb_expect_false (!ev_is_active (w))) |
3403 | return; |
5029 | return; |
3404 | |
5030 | |
3405 | EV_FREQUENT_CHECK; |
5031 | EV_FREQUENT_CHECK; |
3406 | |
5032 | |
3407 | { |
5033 | { |
… | |
… | |
3416 | EV_FREQUENT_CHECK; |
5042 | EV_FREQUENT_CHECK; |
3417 | } |
5043 | } |
3418 | #endif |
5044 | #endif |
3419 | |
5045 | |
3420 | #if EV_EMBED_ENABLE |
5046 | #if EV_EMBED_ENABLE |
3421 | void noinline |
5047 | ecb_noinline |
|
|
5048 | void |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
5049 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3423 | { |
5050 | { |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
5051 | ev_run (w->other, EVRUN_NOWAIT); |
3425 | } |
5052 | } |
3426 | |
5053 | |
3427 | static void |
5054 | static void |
… | |
… | |
3449 | ev_run (EV_A_ EVRUN_NOWAIT); |
5076 | ev_run (EV_A_ EVRUN_NOWAIT); |
3450 | } |
5077 | } |
3451 | } |
5078 | } |
3452 | } |
5079 | } |
3453 | |
5080 | |
|
|
5081 | #if EV_FORK_ENABLE |
3454 | static void |
5082 | static void |
3455 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5083 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3456 | { |
5084 | { |
3457 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5085 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3458 | |
5086 | |
… | |
… | |
3465 | ev_run (EV_A_ EVRUN_NOWAIT); |
5093 | ev_run (EV_A_ EVRUN_NOWAIT); |
3466 | } |
5094 | } |
3467 | |
5095 | |
3468 | ev_embed_start (EV_A_ w); |
5096 | ev_embed_start (EV_A_ w); |
3469 | } |
5097 | } |
|
|
5098 | #endif |
3470 | |
5099 | |
3471 | #if 0 |
5100 | #if 0 |
3472 | static void |
5101 | static void |
3473 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5102 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3474 | { |
5103 | { |
3475 | ev_idle_stop (EV_A_ idle); |
5104 | ev_idle_stop (EV_A_ idle); |
3476 | } |
5105 | } |
3477 | #endif |
5106 | #endif |
3478 | |
5107 | |
3479 | void |
5108 | void |
3480 | ev_embed_start (EV_P_ ev_embed *w) |
5109 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3481 | { |
5110 | { |
3482 | if (expect_false (ev_is_active (w))) |
5111 | if (ecb_expect_false (ev_is_active (w))) |
3483 | return; |
5112 | return; |
3484 | |
5113 | |
3485 | { |
5114 | { |
3486 | EV_P = w->other; |
5115 | EV_P = w->other; |
3487 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5116 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3495 | |
5124 | |
3496 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5125 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3497 | ev_set_priority (&w->prepare, EV_MINPRI); |
5126 | ev_set_priority (&w->prepare, EV_MINPRI); |
3498 | ev_prepare_start (EV_A_ &w->prepare); |
5127 | ev_prepare_start (EV_A_ &w->prepare); |
3499 | |
5128 | |
|
|
5129 | #if EV_FORK_ENABLE |
3500 | ev_fork_init (&w->fork, embed_fork_cb); |
5130 | ev_fork_init (&w->fork, embed_fork_cb); |
3501 | ev_fork_start (EV_A_ &w->fork); |
5131 | ev_fork_start (EV_A_ &w->fork); |
|
|
5132 | #endif |
3502 | |
5133 | |
3503 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5134 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3504 | |
5135 | |
3505 | ev_start (EV_A_ (W)w, 1); |
5136 | ev_start (EV_A_ (W)w, 1); |
3506 | |
5137 | |
3507 | EV_FREQUENT_CHECK; |
5138 | EV_FREQUENT_CHECK; |
3508 | } |
5139 | } |
3509 | |
5140 | |
3510 | void |
5141 | void |
3511 | ev_embed_stop (EV_P_ ev_embed *w) |
5142 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3512 | { |
5143 | { |
3513 | clear_pending (EV_A_ (W)w); |
5144 | clear_pending (EV_A_ (W)w); |
3514 | if (expect_false (!ev_is_active (w))) |
5145 | if (ecb_expect_false (!ev_is_active (w))) |
3515 | return; |
5146 | return; |
3516 | |
5147 | |
3517 | EV_FREQUENT_CHECK; |
5148 | EV_FREQUENT_CHECK; |
3518 | |
5149 | |
3519 | ev_io_stop (EV_A_ &w->io); |
5150 | ev_io_stop (EV_A_ &w->io); |
3520 | ev_prepare_stop (EV_A_ &w->prepare); |
5151 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5152 | #if EV_FORK_ENABLE |
3521 | ev_fork_stop (EV_A_ &w->fork); |
5153 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5154 | #endif |
3522 | |
5155 | |
3523 | ev_stop (EV_A_ (W)w); |
5156 | ev_stop (EV_A_ (W)w); |
3524 | |
5157 | |
3525 | EV_FREQUENT_CHECK; |
5158 | EV_FREQUENT_CHECK; |
3526 | } |
5159 | } |
3527 | #endif |
5160 | #endif |
3528 | |
5161 | |
3529 | #if EV_FORK_ENABLE |
5162 | #if EV_FORK_ENABLE |
3530 | void |
5163 | void |
3531 | ev_fork_start (EV_P_ ev_fork *w) |
5164 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3532 | { |
5165 | { |
3533 | if (expect_false (ev_is_active (w))) |
5166 | if (ecb_expect_false (ev_is_active (w))) |
3534 | return; |
5167 | return; |
3535 | |
5168 | |
3536 | EV_FREQUENT_CHECK; |
5169 | EV_FREQUENT_CHECK; |
3537 | |
5170 | |
3538 | ev_start (EV_A_ (W)w, ++forkcnt); |
5171 | ev_start (EV_A_ (W)w, ++forkcnt); |
3539 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5172 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3540 | forks [forkcnt - 1] = w; |
5173 | forks [forkcnt - 1] = w; |
3541 | |
5174 | |
3542 | EV_FREQUENT_CHECK; |
5175 | EV_FREQUENT_CHECK; |
3543 | } |
5176 | } |
3544 | |
5177 | |
3545 | void |
5178 | void |
3546 | ev_fork_stop (EV_P_ ev_fork *w) |
5179 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3547 | { |
5180 | { |
3548 | clear_pending (EV_A_ (W)w); |
5181 | clear_pending (EV_A_ (W)w); |
3549 | if (expect_false (!ev_is_active (w))) |
5182 | if (ecb_expect_false (!ev_is_active (w))) |
3550 | return; |
5183 | return; |
3551 | |
5184 | |
3552 | EV_FREQUENT_CHECK; |
5185 | EV_FREQUENT_CHECK; |
3553 | |
5186 | |
3554 | { |
5187 | { |
… | |
… | |
3562 | |
5195 | |
3563 | EV_FREQUENT_CHECK; |
5196 | EV_FREQUENT_CHECK; |
3564 | } |
5197 | } |
3565 | #endif |
5198 | #endif |
3566 | |
5199 | |
|
|
5200 | #if EV_CLEANUP_ENABLE |
|
|
5201 | void |
|
|
5202 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5203 | { |
|
|
5204 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5205 | return; |
|
|
5206 | |
|
|
5207 | EV_FREQUENT_CHECK; |
|
|
5208 | |
|
|
5209 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5210 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5211 | cleanups [cleanupcnt - 1] = w; |
|
|
5212 | |
|
|
5213 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5214 | ev_unref (EV_A); |
|
|
5215 | EV_FREQUENT_CHECK; |
|
|
5216 | } |
|
|
5217 | |
|
|
5218 | void |
|
|
5219 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5220 | { |
|
|
5221 | clear_pending (EV_A_ (W)w); |
|
|
5222 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5223 | return; |
|
|
5224 | |
|
|
5225 | EV_FREQUENT_CHECK; |
|
|
5226 | ev_ref (EV_A); |
|
|
5227 | |
|
|
5228 | { |
|
|
5229 | int active = ev_active (w); |
|
|
5230 | |
|
|
5231 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5232 | ev_active (cleanups [active - 1]) = active; |
|
|
5233 | } |
|
|
5234 | |
|
|
5235 | ev_stop (EV_A_ (W)w); |
|
|
5236 | |
|
|
5237 | EV_FREQUENT_CHECK; |
|
|
5238 | } |
|
|
5239 | #endif |
|
|
5240 | |
3567 | #if EV_ASYNC_ENABLE |
5241 | #if EV_ASYNC_ENABLE |
3568 | void |
5242 | void |
3569 | ev_async_start (EV_P_ ev_async *w) |
5243 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3570 | { |
5244 | { |
3571 | if (expect_false (ev_is_active (w))) |
5245 | if (ecb_expect_false (ev_is_active (w))) |
3572 | return; |
5246 | return; |
3573 | |
5247 | |
3574 | w->sent = 0; |
5248 | w->sent = 0; |
3575 | |
5249 | |
3576 | evpipe_init (EV_A); |
5250 | evpipe_init (EV_A); |
3577 | |
5251 | |
3578 | EV_FREQUENT_CHECK; |
5252 | EV_FREQUENT_CHECK; |
3579 | |
5253 | |
3580 | ev_start (EV_A_ (W)w, ++asynccnt); |
5254 | ev_start (EV_A_ (W)w, ++asynccnt); |
3581 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5255 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3582 | asyncs [asynccnt - 1] = w; |
5256 | asyncs [asynccnt - 1] = w; |
3583 | |
5257 | |
3584 | EV_FREQUENT_CHECK; |
5258 | EV_FREQUENT_CHECK; |
3585 | } |
5259 | } |
3586 | |
5260 | |
3587 | void |
5261 | void |
3588 | ev_async_stop (EV_P_ ev_async *w) |
5262 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3589 | { |
5263 | { |
3590 | clear_pending (EV_A_ (W)w); |
5264 | clear_pending (EV_A_ (W)w); |
3591 | if (expect_false (!ev_is_active (w))) |
5265 | if (ecb_expect_false (!ev_is_active (w))) |
3592 | return; |
5266 | return; |
3593 | |
5267 | |
3594 | EV_FREQUENT_CHECK; |
5268 | EV_FREQUENT_CHECK; |
3595 | |
5269 | |
3596 | { |
5270 | { |
… | |
… | |
3604 | |
5278 | |
3605 | EV_FREQUENT_CHECK; |
5279 | EV_FREQUENT_CHECK; |
3606 | } |
5280 | } |
3607 | |
5281 | |
3608 | void |
5282 | void |
3609 | ev_async_send (EV_P_ ev_async *w) |
5283 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3610 | { |
5284 | { |
3611 | w->sent = 1; |
5285 | w->sent = 1; |
3612 | evpipe_write (EV_A_ &async_pending); |
5286 | evpipe_write (EV_A_ &async_pending); |
3613 | } |
5287 | } |
3614 | #endif |
5288 | #endif |
… | |
… | |
3651 | |
5325 | |
3652 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5326 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3653 | } |
5327 | } |
3654 | |
5328 | |
3655 | void |
5329 | void |
3656 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5330 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3657 | { |
5331 | { |
3658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5332 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3659 | |
|
|
3660 | if (expect_false (!once)) |
|
|
3661 | { |
|
|
3662 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
3663 | return; |
|
|
3664 | } |
|
|
3665 | |
5333 | |
3666 | once->cb = cb; |
5334 | once->cb = cb; |
3667 | once->arg = arg; |
5335 | once->arg = arg; |
3668 | |
5336 | |
3669 | ev_init (&once->io, once_cb_io); |
5337 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3682 | } |
5350 | } |
3683 | |
5351 | |
3684 | /*****************************************************************************/ |
5352 | /*****************************************************************************/ |
3685 | |
5353 | |
3686 | #if EV_WALK_ENABLE |
5354 | #if EV_WALK_ENABLE |
|
|
5355 | ecb_cold |
3687 | void |
5356 | void |
3688 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5357 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3689 | { |
5358 | { |
3690 | int i, j; |
5359 | int i, j; |
3691 | ev_watcher_list *wl, *wn; |
5360 | ev_watcher_list *wl, *wn; |
3692 | |
5361 | |
3693 | if (types & (EV_IO | EV_EMBED)) |
5362 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3736 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5405 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3737 | #endif |
5406 | #endif |
3738 | |
5407 | |
3739 | #if EV_IDLE_ENABLE |
5408 | #if EV_IDLE_ENABLE |
3740 | if (types & EV_IDLE) |
5409 | if (types & EV_IDLE) |
3741 | for (j = NUMPRI; i--; ) |
5410 | for (j = NUMPRI; j--; ) |
3742 | for (i = idlecnt [j]; i--; ) |
5411 | for (i = idlecnt [j]; i--; ) |
3743 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5412 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3744 | #endif |
5413 | #endif |
3745 | |
5414 | |
3746 | #if EV_FORK_ENABLE |
5415 | #if EV_FORK_ENABLE |
… | |
… | |
3799 | |
5468 | |
3800 | #if EV_MULTIPLICITY |
5469 | #if EV_MULTIPLICITY |
3801 | #include "ev_wrap.h" |
5470 | #include "ev_wrap.h" |
3802 | #endif |
5471 | #endif |
3803 | |
5472 | |
3804 | EV_CPP(}) |
|
|
3805 | |
|
|