1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 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 | * |
… | |
… | |
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 |
48 | # if HAVE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
49 | # ifndef EV_USE_FLOOR |
50 | # define EV_USE_FLOOR 1 |
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
|
|
53 | |
53 | |
54 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
57 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
59 | # endif |
59 | # endif |
60 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
62 | # endif |
62 | # endif |
63 | # endif |
63 | # endif |
64 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
66 | # endif |
66 | # endif |
67 | |
67 | |
68 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
69 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
115 | # else |
115 | # else |
116 | # undef EV_USE_EPOLL |
116 | # undef EV_USE_EPOLL |
117 | # define EV_USE_EPOLL 0 |
117 | # define EV_USE_EPOLL 0 |
118 | # endif |
118 | # endif |
119 | |
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 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
139 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
123 | # endif |
141 | # endif |
124 | # else |
142 | # else |
… | |
… | |
159 | # endif |
177 | # endif |
160 | # else |
178 | # else |
161 | # undef EV_USE_EVENTFD |
179 | # undef EV_USE_EVENTFD |
162 | # define EV_USE_EVENTFD 0 |
180 | # define EV_USE_EVENTFD 0 |
163 | # endif |
181 | # endif |
164 | |
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 |
165 | #endif |
190 | # endif |
|
|
191 | |
|
|
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 |
166 | |
203 | |
167 | #include <stdlib.h> |
204 | #include <stdlib.h> |
168 | #include <string.h> |
205 | #include <string.h> |
169 | #include <fcntl.h> |
206 | #include <fcntl.h> |
170 | #include <stddef.h> |
207 | #include <stddef.h> |
… | |
… | |
183 | # include EV_H |
220 | # include EV_H |
184 | #else |
221 | #else |
185 | # include "ev.h" |
222 | # include "ev.h" |
186 | #endif |
223 | #endif |
187 | |
224 | |
188 | 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 |
189 | |
235 | |
190 | #ifndef _WIN32 |
236 | #ifndef _WIN32 |
191 | # include <sys/time.h> |
237 | # include <sys/time.h> |
192 | # include <sys/wait.h> |
238 | # include <sys/wait.h> |
193 | # include <unistd.h> |
239 | # include <unistd.h> |
194 | #else |
240 | #else |
195 | # include <io.h> |
241 | # include <io.h> |
196 | # define WIN32_LEAN_AND_MEAN |
242 | # define WIN32_LEAN_AND_MEAN |
|
|
243 | # include <winsock2.h> |
197 | # include <windows.h> |
244 | # include <windows.h> |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
200 | # endif |
247 | # endif |
201 | # undef EV_AVOID_STDIO |
248 | # undef EV_AVOID_STDIO |
202 | #endif |
249 | #endif |
203 | |
250 | |
204 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
205 | * a limit of 1024 into their select. Where people have brains, |
|
|
206 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
207 | * ordered to have a vacuum, or they do anything for money. |
|
|
208 | * This might help. Or not. |
|
|
209 | */ |
|
|
210 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
211 | |
|
|
212 | /* 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 */ |
213 | |
252 | |
214 | /* try to deduce the maximum number of signals on this platform */ |
253 | /* try to deduce the maximum number of signals on this platform */ |
215 | #if defined (EV_NSIG) |
254 | #if defined EV_NSIG |
216 | /* use what's provided */ |
255 | /* use what's provided */ |
217 | #elif defined (NSIG) |
256 | #elif defined NSIG |
218 | # define EV_NSIG (NSIG) |
257 | # define EV_NSIG (NSIG) |
219 | #elif defined(_NSIG) |
258 | #elif defined _NSIG |
220 | # define EV_NSIG (_NSIG) |
259 | # define EV_NSIG (_NSIG) |
221 | #elif defined (SIGMAX) |
260 | #elif defined SIGMAX |
222 | # define EV_NSIG (SIGMAX+1) |
261 | # define EV_NSIG (SIGMAX+1) |
223 | #elif defined (SIG_MAX) |
262 | #elif defined SIG_MAX |
224 | # define EV_NSIG (SIG_MAX+1) |
263 | # define EV_NSIG (SIG_MAX+1) |
225 | #elif defined (_SIG_MAX) |
264 | #elif defined _SIG_MAX |
226 | # define EV_NSIG (_SIG_MAX+1) |
265 | # define EV_NSIG (_SIG_MAX+1) |
227 | #elif defined (MAXSIG) |
266 | #elif defined MAXSIG |
228 | # define EV_NSIG (MAXSIG+1) |
267 | # define EV_NSIG (MAXSIG+1) |
229 | #elif defined (MAX_SIG) |
268 | #elif defined MAX_SIG |
230 | # define EV_NSIG (MAX_SIG+1) |
269 | # define EV_NSIG (MAX_SIG+1) |
231 | #elif defined (SIGARRAYSIZE) |
270 | #elif defined SIGARRAYSIZE |
232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
271 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
233 | #elif defined (_sys_nsig) |
272 | #elif defined _sys_nsig |
234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
273 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
235 | #else |
274 | #else |
236 | # error "unable to find value for NSIG, please report" |
275 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
237 | /* to make it compile regardless, just remove the above line, */ |
|
|
238 | /* but consider reporting it, too! :) */ |
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|
239 | # define EV_NSIG 65 |
|
|
240 | #endif |
276 | #endif |
241 | |
277 | |
242 | #ifndef EV_USE_FLOOR |
278 | #ifndef EV_USE_FLOOR |
243 | # define EV_USE_FLOOR 0 |
279 | # define EV_USE_FLOOR 0 |
244 | #endif |
280 | #endif |
245 | |
281 | |
246 | #ifndef EV_USE_CLOCK_SYSCALL |
282 | #ifndef EV_USE_CLOCK_SYSCALL |
247 | # if __linux && __GLIBC__ >= 2 |
283 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
284 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
249 | # else |
285 | # else |
250 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
251 | # endif |
287 | # endif |
252 | #endif |
288 | #endif |
253 | |
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 | |
254 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
301 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
257 | # else |
302 | # else |
258 | # define EV_USE_MONOTONIC 0 |
303 | # define EV_USE_MONOTONIC 0 |
259 | # endif |
304 | # endif |
260 | #endif |
305 | #endif |
… | |
… | |
297 | |
342 | |
298 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
299 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
300 | #endif |
345 | #endif |
301 | |
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 | |
302 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
305 | # else |
366 | # else |
306 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
329 | # else |
390 | # else |
330 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
331 | # endif |
392 | # endif |
332 | #endif |
393 | #endif |
333 | |
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 | |
334 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
335 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
336 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
337 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
338 | #endif |
407 | #endif |
… | |
… | |
347 | |
416 | |
348 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
350 | #endif |
419 | #endif |
351 | |
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 | |
352 | /* 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, */ |
353 | /* which makes programs even slower. might work on other unices, too. */ |
438 | /* which makes programs even slower. might work on other unices, too. */ |
354 | #if EV_USE_CLOCK_SYSCALL |
439 | #if EV_USE_CLOCK_SYSCALL |
355 | # include <syscall.h> |
440 | # include <sys/syscall.h> |
356 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
358 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
359 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
|
|
445 | # define EV_NEED_SYSCALL 1 |
360 | # else |
446 | # else |
361 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
362 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
363 | # endif |
449 | # endif |
364 | #endif |
450 | #endif |
365 | |
451 | |
366 | /* 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 */ |
367 | |
453 | |
368 | #ifdef _AIX |
|
|
369 | /* AIX has a completely broken poll.h header */ |
|
|
370 | # undef EV_USE_POLL |
|
|
371 | # define EV_USE_POLL 0 |
|
|
372 | #endif |
|
|
373 | |
|
|
374 | #ifndef CLOCK_MONOTONIC |
454 | #ifndef CLOCK_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
455 | # undef EV_USE_MONOTONIC |
376 | # define EV_USE_MONOTONIC 0 |
456 | # define EV_USE_MONOTONIC 0 |
377 | #endif |
457 | #endif |
378 | |
458 | |
… | |
… | |
384 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
385 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
386 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
387 | #endif |
467 | #endif |
388 | |
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 | |
389 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
391 | # if !defined(_WIN32) && !defined(__hpux) |
479 | # if !defined _WIN32 && !defined __hpux |
392 | # include <sys/select.h> |
480 | # include <sys/select.h> |
|
|
481 | # endif |
|
|
482 | #endif |
|
|
483 | |
|
|
484 | #if EV_USE_LINUXAIO |
|
|
485 | # include <sys/syscall.h> |
|
|
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
|
|
489 | # undef EV_USE_LINUXAIO |
|
|
490 | # define EV_USE_LINUXAIO 0 |
|
|
491 | # endif |
|
|
492 | #endif |
|
|
493 | |
|
|
494 | #if EV_USE_IOURING |
|
|
495 | # include <sys/syscall.h> |
|
|
496 | # if !SYS_io_uring_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 |
393 | # endif |
506 | # endif |
394 | #endif |
507 | #endif |
395 | |
508 | |
396 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
397 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
401 | # undef EV_USE_INOTIFY |
514 | # undef EV_USE_INOTIFY |
402 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
403 | # endif |
516 | # endif |
404 | #endif |
517 | #endif |
405 | |
518 | |
406 | #if EV_SELECT_IS_WINSOCKET |
|
|
407 | # include <winsock.h> |
|
|
408 | #endif |
|
|
409 | |
|
|
410 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
411 | /* 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 */ |
412 | # include <stdint.h> |
521 | # include <stdint.h> |
413 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
414 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
415 | # endif |
524 | # endif |
416 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
422 | # endif |
531 | # endif |
423 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
424 | #endif |
533 | #endif |
425 | |
534 | |
426 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
427 | /* 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 */ |
428 | # include <stdint.h> |
537 | # include <stdint.h> |
429 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
430 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
431 | # endif |
540 | # endif |
432 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
434 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
435 | # else |
544 | # else |
436 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
437 | # endif |
546 | # endif |
438 | # endif |
547 | # endif |
439 | 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); |
440 | |
549 | |
441 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
442 | { |
551 | { |
443 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
444 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
445 | }; |
554 | }; |
446 | #endif |
555 | #endif |
447 | |
556 | |
448 | /**/ |
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 | /*****************************************************************************/ |
449 | |
568 | |
450 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
452 | #else |
571 | #else |
453 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
458 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
459 | */ |
578 | */ |
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
462 | |
581 | |
463 | #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) */ |
464 | #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) */ |
465 | |
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 |
466 | #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) |
467 | #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 |
468 | |
602 | |
469 | /* the following are taken from libecb */ |
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ecb.h start */ |
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; |
|
|
658 | #if __GNUC__ |
|
|
659 | typedef signed long long int64_t; |
|
|
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 |
|
|
674 | #else |
|
|
675 | #include <inttypes.h> |
|
|
676 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
|
|
677 | #define ECB_PTRSIZE 8 |
|
|
678 | #else |
|
|
679 | #define ECB_PTRSIZE 4 |
|
|
680 | #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 |
|
|
692 | #endif |
|
|
693 | #endif |
471 | |
694 | |
472 | /* many compilers define _GNUC_ to some versions but then only implement |
695 | /* many compilers define _GNUC_ to some versions but then only implement |
473 | * what their idiot authors think are the "more important" extensions, |
696 | * what their idiot authors think are the "more important" extensions, |
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
697 | * causing enormous grief in return for some better fake benchmark numbers. |
475 | * or so. |
698 | * or so. |
476 | * we try to detect these and simply assume they are not gcc - if they have |
699 | * we try to detect these and simply assume they are not gcc - if they have |
477 | * an issue with that they should have done it right in the first place. |
700 | * an issue with that they should have done it right in the first place. |
478 | */ |
701 | */ |
479 | #ifndef ECB_GCC_VERSION |
|
|
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
702 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
481 | #define ECB_GCC_VERSION(major,minor) 0 |
703 | #define ECB_GCC_VERSION(major,minor) 0 |
482 | #else |
704 | #else |
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
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 |
484 | #endif |
824 | #endif |
485 | #endif |
825 | #endif |
486 | |
826 | |
487 | #if __cplusplus |
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> |
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|
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
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|
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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|
859 | #include <mbarrier.h> |
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|
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
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|
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
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|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
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|
864 | #elif __xlC__ |
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|
865 | #define ECB_MEMORY_FENCE __sync () |
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|
866 | #endif |
|
|
867 | #endif |
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|
868 | |
|
|
869 | #ifndef ECB_MEMORY_FENCE |
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|
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
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|
872 | /* not just C11 atomics and atomic accesses */ |
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|
873 | #include <stdatomic.h> |
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|
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
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|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
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|
877 | #endif |
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|
878 | #endif |
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|
879 | |
|
|
880 | #ifndef ECB_MEMORY_FENCE |
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|
881 | #if !ECB_AVOID_PTHREADS |
|
|
882 | /* |
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|
883 | * if you get undefined symbol references to pthread_mutex_lock, |
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884 | * or failure to find pthread.h, then you should implement |
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885 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
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886 | * OR provide pthread.h and link against the posix thread library |
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|
887 | * of your system. |
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|
888 | */ |
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|
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; |
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|
894 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
895 | #endif |
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|
896 | #endif |
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|
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 |
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|
909 | |
|
|
910 | /*****************************************************************************/ |
|
|
911 | |
|
|
912 | #if ECB_CPP |
488 | #define ecb_inline static inline |
913 | #define ecb_inline static inline |
489 | #elif ECB_GCC_VERSION(2,5) |
914 | #elif ECB_GCC_VERSION(2,5) |
490 | #define ecb_inline static __inline__ |
915 | #define ecb_inline static __inline__ |
491 | #elif ECB_C99 |
916 | #elif ECB_C99 |
492 | #define ecb_inline static inline |
917 | #define ecb_inline static inline |
493 | #else |
918 | #else |
494 | #define ecb_inline static |
919 | #define ecb_inline static |
495 | #endif |
920 | #endif |
496 | |
921 | |
497 | #ifndef ECB_MEMORY_FENCE |
|
|
498 | #if ECB_GCC_VERSION(2,5) |
|
|
499 | #if __x86 |
|
|
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
|
|
503 | #elif __amd64 |
|
|
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
|
|
507 | #endif |
|
|
508 | #endif |
|
|
509 | #endif |
|
|
510 | |
|
|
511 | #ifndef ECB_MEMORY_FENCE |
|
|
512 | #if ECB_GCC_VERSION(4,4) |
|
|
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
516 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
517 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
518 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
519 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
520 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
521 | #elif defined(_WIN32) |
|
|
522 | #include <WinNT.h> |
|
|
523 | #define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
524 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
525 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
526 | #endif |
|
|
527 | #endif |
|
|
528 | |
|
|
529 | #ifndef ECB_MEMORY_FENCE |
|
|
530 | #include <pthread.h> |
|
|
531 | |
|
|
532 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
533 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
534 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
535 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
536 | #endif |
|
|
537 | |
|
|
538 | #if ECB_GCC_VERSION(3,1) |
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) |
539 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
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) |
540 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
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) |
541 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
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) |
542 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
963 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
543 | #else |
964 | #else |
544 | #define ecb_attribute(attrlist) |
|
|
545 | #define ecb_is_constant(expr) 0 |
|
|
546 | #define ecb_expect(expr,value) (expr) |
|
|
547 | #define ecb_prefetch(addr,rw,locality) |
965 | #define ecb_prefetch(addr,rw,locality) |
548 | #endif |
966 | #endif |
549 | |
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 |
550 | #define ecb_noinline ecb_attribute ((__noinline__)) |
994 | #define ecb_noinline ecb_attribute ((__noinline__)) |
551 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
995 | #endif |
|
|
996 | |
552 | #define ecb_unused ecb_attribute ((__unused__)) |
997 | #define ecb_unused ecb_attribute ((__unused__)) |
553 | #define ecb_const ecb_attribute ((__const__)) |
998 | #define ecb_const ecb_attribute ((__const__)) |
554 | #define ecb_pure ecb_attribute ((__pure__)) |
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 |
555 | |
1012 | |
556 | #if ECB_GCC_VERSION(4,3) |
1013 | #if ECB_GCC_VERSION(4,3) |
557 | #define ecb_artificial ecb_attribute ((__artificial__)) |
1014 | #define ecb_artificial ecb_attribute ((__artificial__)) |
558 | #define ecb_hot ecb_attribute ((__hot__)) |
1015 | #define ecb_hot ecb_attribute ((__hot__)) |
559 | #define ecb_cold ecb_attribute ((__cold__)) |
1016 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
566 | /* put around conditional expressions if you are very sure that the */ |
1023 | /* put around conditional expressions if you are very sure that the */ |
567 | /* expression is mostly true or mostly false. note that these return */ |
1024 | /* expression is mostly true or mostly false. note that these return */ |
568 | /* booleans, not the expression. */ |
1025 | /* booleans, not the expression. */ |
569 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
1026 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
570 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
1027 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
571 | /* ecb.h end */ |
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) |
572 | |
1031 | |
573 | #define expect_false(cond) ecb_expect_false (cond) |
1032 | /* count trailing zero bits and count # of one bits */ |
574 | #define expect_true(cond) ecb_expect_true (cond) |
1033 | #if ECB_GCC_VERSION(3,4) \ |
575 | #define noinline ecb_noinline |
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 |
576 | |
1639 | |
577 | #define inline_size ecb_inline |
1640 | #define inline_size ecb_inline |
578 | |
1641 | |
579 | #if EV_FEATURE_CODE |
1642 | #if EV_FEATURE_CODE |
580 | # define inline_speed ecb_inline |
1643 | # define inline_speed ecb_inline |
581 | #else |
1644 | #else |
582 | # define inline_speed static noinline |
1645 | # define inline_speed ecb_noinline static |
583 | #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 && !EV_FEATURE_CODE |
|
|
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 | /*****************************************************************************/ |
584 | |
1713 | |
585 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
586 | |
1715 | |
587 | #if EV_MINPRI == EV_MAXPRI |
1716 | #if EV_MINPRI == EV_MAXPRI |
588 | # define ABSPRI(w) (((W)w), 0) |
1717 | # define ABSPRI(w) (((W)w), 0) |
589 | #else |
1718 | #else |
590 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
591 | #endif |
1720 | #endif |
592 | |
1721 | |
593 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
594 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
595 | |
1723 | |
596 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
597 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
598 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
599 | |
1727 | |
… | |
… | |
624 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
625 | #endif |
1753 | #endif |
626 | |
1754 | |
627 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
628 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
629 | /* define a suitable floor function (only used by periodics atm) */ |
1761 | /* define a suitable floor function (only used by periodics atm) */ |
630 | |
1762 | |
631 | #if EV_USE_FLOOR |
1763 | #if EV_USE_FLOOR |
632 | # include <math.h> |
1764 | # include <math.h> |
633 | # define ev_floor(v) floor (v) |
1765 | # define ev_floor(v) floor (v) |
634 | #else |
1766 | #else |
635 | |
1767 | |
636 | #include <float.h> |
1768 | #include <float.h> |
637 | |
1769 | |
638 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1771 | ecb_noinline |
639 | static ev_tstamp noinline |
1772 | static ev_tstamp |
640 | ev_floor (ev_tstamp v) |
1773 | ev_floor (ev_tstamp v) |
641 | { |
1774 | { |
642 | /* the choice of shift factor is not terribly important */ |
1775 | /* the choice of shift factor is not terribly important */ |
643 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
644 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
645 | #else |
1778 | #else |
646 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
647 | #endif |
1780 | #endif |
648 | |
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 | |
649 | /* argument too large for an unsigned long? */ |
1790 | /* argument too large for an unsigned long? then reduce it */ |
650 | if (expect_false (v >= shift)) |
1791 | if (ecb_expect_false (v >= shift)) |
651 | { |
1792 | { |
652 | ev_tstamp f; |
1793 | ev_tstamp f; |
653 | |
1794 | |
654 | if (v == v - 1.) |
1795 | if (v == v - 1.) |
655 | return v; /* very large number */ |
1796 | return v; /* very large numbers are assumed to be integer */ |
656 | |
1797 | |
657 | f = shift * ev_floor (v * (1. / shift)); |
1798 | f = shift * ev_floor (v * (1. / shift)); |
658 | return f + ev_floor (v - f); |
1799 | return f + ev_floor (v - f); |
659 | } |
1800 | } |
660 | |
1801 | |
661 | /* special treatment for negative args? */ |
|
|
662 | if (expect_false (v < 0.)) |
|
|
663 | { |
|
|
664 | ev_tstamp f = -ev_floor (-v); |
|
|
665 | |
|
|
666 | return f - (f == v ? 0 : 1); |
|
|
667 | } |
|
|
668 | |
|
|
669 | /* fits into an unsigned long */ |
1802 | /* fits into an unsigned long */ |
670 | return (unsigned long)v; |
1803 | return (unsigned long)v; |
671 | } |
1804 | } |
672 | |
1805 | |
673 | #endif |
1806 | #endif |
… | |
… | |
676 | |
1809 | |
677 | #ifdef __linux |
1810 | #ifdef __linux |
678 | # include <sys/utsname.h> |
1811 | # include <sys/utsname.h> |
679 | #endif |
1812 | #endif |
680 | |
1813 | |
681 | static unsigned int noinline ecb_cold |
1814 | ecb_noinline ecb_cold |
|
|
1815 | static unsigned int |
682 | ev_linux_version (void) |
1816 | ev_linux_version (void) |
683 | { |
1817 | { |
684 | #ifdef __linux |
1818 | #ifdef __linux |
685 | unsigned int v = 0; |
1819 | unsigned int v = 0; |
686 | struct utsname buf; |
1820 | struct utsname buf; |
… | |
… | |
715 | } |
1849 | } |
716 | |
1850 | |
717 | /*****************************************************************************/ |
1851 | /*****************************************************************************/ |
718 | |
1852 | |
719 | #if EV_AVOID_STDIO |
1853 | #if EV_AVOID_STDIO |
720 | static void noinline ecb_cold |
1854 | ecb_noinline ecb_cold |
|
|
1855 | static void |
721 | ev_printerr (const char *msg) |
1856 | ev_printerr (const char *msg) |
722 | { |
1857 | { |
723 | write (STDERR_FILENO, msg, strlen (msg)); |
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
724 | } |
1859 | } |
725 | #endif |
1860 | #endif |
726 | |
1861 | |
727 | static void (*syserr_cb)(const char *msg); |
1862 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
728 | |
1863 | |
729 | void ecb_cold |
1864 | ecb_cold |
|
|
1865 | void |
730 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
731 | { |
1867 | { |
732 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
733 | } |
1869 | } |
734 | |
1870 | |
735 | static void noinline ecb_cold |
1871 | ecb_noinline ecb_cold |
|
|
1872 | static void |
736 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
737 | { |
1874 | { |
738 | if (!msg) |
1875 | if (!msg) |
739 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
740 | |
1877 | |
… | |
… | |
753 | abort (); |
1890 | abort (); |
754 | } |
1891 | } |
755 | } |
1892 | } |
756 | |
1893 | |
757 | static void * |
1894 | static void * |
758 | ev_realloc_emul (void *ptr, long size) |
1895 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
759 | { |
1896 | { |
760 | #if __GLIBC__ |
|
|
761 | return realloc (ptr, size); |
|
|
762 | #else |
|
|
763 | /* some systems, notably openbsd and darwin, fail to properly |
1897 | /* some systems, notably openbsd and darwin, fail to properly |
764 | * 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 |
765 | * 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. |
766 | */ |
1902 | */ |
767 | |
1903 | |
768 | if (size) |
1904 | if (size) |
769 | return realloc (ptr, size); |
1905 | return realloc (ptr, size); |
770 | |
1906 | |
771 | free (ptr); |
1907 | free (ptr); |
772 | return 0; |
1908 | return 0; |
773 | #endif |
|
|
774 | } |
1909 | } |
775 | |
1910 | |
776 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1911 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
777 | |
1912 | |
778 | void ecb_cold |
1913 | ecb_cold |
|
|
1914 | void |
779 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1915 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
780 | { |
1916 | { |
781 | alloc = cb; |
1917 | alloc = cb; |
782 | } |
1918 | } |
783 | |
1919 | |
784 | inline_speed void * |
1920 | inline_speed void * |
… | |
… | |
811 | typedef struct |
1947 | typedef struct |
812 | { |
1948 | { |
813 | WL head; |
1949 | WL head; |
814 | unsigned char events; /* the events watched for */ |
1950 | unsigned char events; /* the events watched for */ |
815 | 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) */ |
816 | 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 */ |
817 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
818 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
819 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
820 | #endif |
1956 | #endif |
821 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
822 | SOCKET handle; |
1958 | SOCKET handle; |
… | |
… | |
872 | #undef VAR |
2008 | #undef VAR |
873 | }; |
2009 | }; |
874 | #include "ev_wrap.h" |
2010 | #include "ev_wrap.h" |
875 | |
2011 | |
876 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
877 | 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 */ |
878 | |
2014 | |
879 | #else |
2015 | #else |
880 | |
2016 | |
881 | 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 */ |
882 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
883 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
884 | #undef VAR |
2020 | #undef VAR |
885 | |
2021 | |
886 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
887 | |
2023 | |
888 | #endif |
2024 | #endif |
889 | |
2025 | |
890 | #if EV_FEATURE_API |
2026 | #if EV_FEATURE_API |
891 | # 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) |
892 | # 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) |
893 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
894 | #else |
2030 | #else |
895 | # define EV_RELEASE_CB (void)0 |
2031 | # define EV_RELEASE_CB (void)0 |
896 | # define EV_ACQUIRE_CB (void)0 |
2032 | # define EV_ACQUIRE_CB (void)0 |
897 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
901 | |
2037 | |
902 | /*****************************************************************************/ |
2038 | /*****************************************************************************/ |
903 | |
2039 | |
904 | #ifndef EV_HAVE_EV_TIME |
2040 | #ifndef EV_HAVE_EV_TIME |
905 | ev_tstamp |
2041 | ev_tstamp |
906 | ev_time (void) |
2042 | ev_time (void) EV_NOEXCEPT |
907 | { |
2043 | { |
908 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
909 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
910 | { |
2046 | { |
911 | struct timespec ts; |
2047 | struct timespec ts; |
912 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
913 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
914 | } |
2050 | } |
915 | #endif |
2051 | #endif |
916 | |
2052 | |
|
|
2053 | { |
917 | struct timeval tv; |
2054 | struct timeval tv; |
918 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
919 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
920 | } |
2058 | } |
921 | #endif |
2059 | #endif |
922 | |
2060 | |
923 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
924 | get_clock (void) |
2062 | get_clock (void) |
925 | { |
2063 | { |
926 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
927 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
928 | { |
2066 | { |
929 | struct timespec ts; |
2067 | struct timespec ts; |
930 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
931 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
932 | } |
2070 | } |
933 | #endif |
2071 | #endif |
934 | |
2072 | |
935 | return ev_time (); |
2073 | return ev_time (); |
936 | } |
2074 | } |
937 | |
2075 | |
938 | #if EV_MULTIPLICITY |
2076 | #if EV_MULTIPLICITY |
939 | ev_tstamp |
2077 | ev_tstamp |
940 | ev_now (EV_P) |
2078 | ev_now (EV_P) EV_NOEXCEPT |
941 | { |
2079 | { |
942 | return ev_rt_now; |
2080 | return ev_rt_now; |
943 | } |
2081 | } |
944 | #endif |
2082 | #endif |
945 | |
2083 | |
946 | void |
2084 | void |
947 | ev_sleep (ev_tstamp delay) |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
948 | { |
2086 | { |
949 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
950 | { |
2088 | { |
951 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
952 | struct timespec ts; |
2090 | struct timespec ts; |
953 | |
2091 | |
954 | EV_TS_SET (ts, delay); |
2092 | EV_TS_SET (ts, delay); |
955 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
956 | #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) */ |
957 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
958 | #else |
2098 | #else |
959 | struct timeval tv; |
2099 | struct timeval tv; |
960 | |
2100 | |
961 | /* 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 */ |
962 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
980 | |
2120 | |
981 | do |
2121 | do |
982 | ncur <<= 1; |
2122 | ncur <<= 1; |
983 | while (cnt > ncur); |
2123 | while (cnt > ncur); |
984 | |
2124 | |
985 | /* 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 */ |
986 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2126 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
987 | { |
2127 | { |
988 | ncur *= elem; |
2128 | ncur *= elem; |
989 | 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); |
990 | ncur = ncur - sizeof (void *) * 4; |
2130 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
992 | } |
2132 | } |
993 | |
2133 | |
994 | return ncur; |
2134 | return ncur; |
995 | } |
2135 | } |
996 | |
2136 | |
997 | static void * noinline ecb_cold |
2137 | ecb_noinline ecb_cold |
|
|
2138 | static void * |
998 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
999 | { |
2140 | { |
1000 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
1001 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
1002 | } |
2143 | } |
1003 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
1004 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
1005 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1006 | |
2149 | |
1007 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
1008 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
1009 | { \ |
2152 | { \ |
1010 | int ecb_unused ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
1011 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
1012 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
1013 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
1014 | } |
2157 | } |
1015 | |
2158 | |
1016 | #if 0 |
2159 | #if 0 |
1017 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
1018 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1027 | 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 |
1028 | |
2171 | |
1029 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
1030 | |
2173 | |
1031 | /* dummy callback for pending events */ |
2174 | /* dummy callback for pending events */ |
1032 | static void noinline |
2175 | ecb_noinline |
|
|
2176 | static void |
1033 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1034 | { |
2178 | { |
1035 | } |
2179 | } |
1036 | |
2180 | |
1037 | void noinline |
2181 | ecb_noinline |
|
|
2182 | void |
1038 | ev_feed_event (EV_P_ void *w, int revents) |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1039 | { |
2184 | { |
1040 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
1041 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
1042 | |
2187 | |
1043 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
1044 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
1045 | else |
2190 | else |
1046 | { |
2191 | { |
1047 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
1048 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1049 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
1050 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
1051 | } |
2196 | } |
|
|
2197 | |
|
|
2198 | pendingpri = NUMPRI - 1; |
1052 | } |
2199 | } |
1053 | |
2200 | |
1054 | inline_speed void |
2201 | inline_speed void |
1055 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
1056 | { |
2203 | { |
1057 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1058 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
1059 | } |
2206 | } |
1060 | |
2207 | |
1061 | inline_size void |
2208 | inline_size void |
1062 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1097 | inline_speed void |
2244 | inline_speed void |
1098 | fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
1099 | { |
2246 | { |
1100 | ANFD *anfd = anfds + fd; |
2247 | ANFD *anfd = anfds + fd; |
1101 | |
2248 | |
1102 | if (expect_true (!anfd->reify)) |
2249 | if (ecb_expect_true (!anfd->reify)) |
1103 | fd_event_nocheck (EV_A_ fd, revents); |
2250 | fd_event_nocheck (EV_A_ fd, revents); |
1104 | } |
2251 | } |
1105 | |
2252 | |
1106 | void |
2253 | void |
1107 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1108 | { |
2255 | { |
1109 | if (fd >= 0 && fd < anfdmax) |
2256 | if (fd >= 0 && fd < anfdmax) |
1110 | fd_event_nocheck (EV_A_ fd, revents); |
2257 | fd_event_nocheck (EV_A_ fd, revents); |
1111 | } |
2258 | } |
1112 | |
2259 | |
… | |
… | |
1115 | inline_size void |
2262 | inline_size void |
1116 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
1117 | { |
2264 | { |
1118 | int i; |
2265 | int i; |
1119 | |
2266 | |
|
|
2267 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2268 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2269 | * to handle events in backend_modify, causing fdchangesd to be amended, |
|
|
2270 | * which could result in an endless loop. |
|
|
2271 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2272 | * during fd_reify. that menas thast for those backends, fdchangecnt |
|
|
2273 | * might be non-zero during poll, which must cause them to not block. |
|
|
2274 | * to not put too much of a burden on other backends, this detail |
|
|
2275 | * needs to be handled in the backend. |
|
|
2276 | */ |
|
|
2277 | int changecnt = fdchangecnt; |
|
|
2278 | |
1120 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2279 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1121 | for (i = 0; i < fdchangecnt; ++i) |
2280 | for (i = 0; i < changecnt; ++i) |
1122 | { |
2281 | { |
1123 | int fd = fdchanges [i]; |
2282 | int fd = fdchanges [i]; |
1124 | ANFD *anfd = anfds + fd; |
2283 | ANFD *anfd = anfds + fd; |
1125 | |
2284 | |
1126 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2285 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
1140 | } |
2299 | } |
1141 | } |
2300 | } |
1142 | } |
2301 | } |
1143 | #endif |
2302 | #endif |
1144 | |
2303 | |
1145 | for (i = 0; i < fdchangecnt; ++i) |
2304 | for (i = 0; i < changecnt; ++i) |
1146 | { |
2305 | { |
1147 | int fd = fdchanges [i]; |
2306 | int fd = fdchanges [i]; |
1148 | ANFD *anfd = anfds + fd; |
2307 | ANFD *anfd = anfds + fd; |
1149 | ev_io *w; |
2308 | ev_io *w; |
1150 | |
2309 | |
1151 | unsigned char o_events = anfd->events; |
2310 | unsigned char o_events = anfd->events; |
1152 | unsigned char o_reify = anfd->reify; |
2311 | unsigned char o_reify = anfd->reify; |
1153 | |
2312 | |
1154 | anfd->reify = 0; |
2313 | anfd->reify = 0; |
1155 | |
2314 | |
1156 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2315 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1157 | { |
2316 | { |
1158 | anfd->events = 0; |
2317 | anfd->events = 0; |
1159 | |
2318 | |
1160 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2319 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1161 | anfd->events |= (unsigned char)w->events; |
2320 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1166 | |
2325 | |
1167 | if (o_reify & EV__IOFDSET) |
2326 | if (o_reify & EV__IOFDSET) |
1168 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2327 | backend_modify (EV_A_ fd, o_events, anfd->events); |
1169 | } |
2328 | } |
1170 | |
2329 | |
|
|
2330 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2331 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2332 | * front and hope the backend handles this case. |
|
|
2333 | */ |
|
|
2334 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2335 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2336 | |
1171 | fdchangecnt = 0; |
2337 | fdchangecnt -= changecnt; |
1172 | } |
2338 | } |
1173 | |
2339 | |
1174 | /* something about the given fd changed */ |
2340 | /* something about the given fd changed */ |
1175 | inline_size void |
2341 | inline_size |
|
|
2342 | void |
1176 | fd_change (EV_P_ int fd, int flags) |
2343 | fd_change (EV_P_ int fd, int flags) |
1177 | { |
2344 | { |
1178 | unsigned char reify = anfds [fd].reify; |
2345 | unsigned char reify = anfds [fd].reify; |
1179 | anfds [fd].reify |= flags; |
2346 | anfds [fd].reify |= flags; |
1180 | |
2347 | |
1181 | if (expect_true (!reify)) |
2348 | if (ecb_expect_true (!reify)) |
1182 | { |
2349 | { |
1183 | ++fdchangecnt; |
2350 | ++fdchangecnt; |
1184 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2351 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1185 | fdchanges [fdchangecnt - 1] = fd; |
2352 | fdchanges [fdchangecnt - 1] = fd; |
1186 | } |
2353 | } |
1187 | } |
2354 | } |
1188 | |
2355 | |
1189 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2356 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1190 | inline_speed void ecb_cold |
2357 | inline_speed ecb_cold void |
1191 | fd_kill (EV_P_ int fd) |
2358 | fd_kill (EV_P_ int fd) |
1192 | { |
2359 | { |
1193 | ev_io *w; |
2360 | ev_io *w; |
1194 | |
2361 | |
1195 | while ((w = (ev_io *)anfds [fd].head)) |
2362 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1198 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2365 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1199 | } |
2366 | } |
1200 | } |
2367 | } |
1201 | |
2368 | |
1202 | /* check whether the given fd is actually valid, for error recovery */ |
2369 | /* check whether the given fd is actually valid, for error recovery */ |
1203 | inline_size int ecb_cold |
2370 | inline_size ecb_cold int |
1204 | fd_valid (int fd) |
2371 | fd_valid (int fd) |
1205 | { |
2372 | { |
1206 | #ifdef _WIN32 |
2373 | #ifdef _WIN32 |
1207 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2374 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1208 | #else |
2375 | #else |
1209 | return fcntl (fd, F_GETFD) != -1; |
2376 | return fcntl (fd, F_GETFD) != -1; |
1210 | #endif |
2377 | #endif |
1211 | } |
2378 | } |
1212 | |
2379 | |
1213 | /* called on EBADF to verify fds */ |
2380 | /* called on EBADF to verify fds */ |
1214 | static void noinline ecb_cold |
2381 | ecb_noinline ecb_cold |
|
|
2382 | static void |
1215 | fd_ebadf (EV_P) |
2383 | fd_ebadf (EV_P) |
1216 | { |
2384 | { |
1217 | int fd; |
2385 | int fd; |
1218 | |
2386 | |
1219 | for (fd = 0; fd < anfdmax; ++fd) |
2387 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1221 | if (!fd_valid (fd) && errno == EBADF) |
2389 | if (!fd_valid (fd) && errno == EBADF) |
1222 | fd_kill (EV_A_ fd); |
2390 | fd_kill (EV_A_ fd); |
1223 | } |
2391 | } |
1224 | |
2392 | |
1225 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2393 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1226 | static void noinline ecb_cold |
2394 | ecb_noinline ecb_cold |
|
|
2395 | static void |
1227 | fd_enomem (EV_P) |
2396 | fd_enomem (EV_P) |
1228 | { |
2397 | { |
1229 | int fd; |
2398 | int fd; |
1230 | |
2399 | |
1231 | for (fd = anfdmax; fd--; ) |
2400 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1235 | break; |
2404 | break; |
1236 | } |
2405 | } |
1237 | } |
2406 | } |
1238 | |
2407 | |
1239 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2408 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1240 | static void noinline |
2409 | ecb_noinline |
|
|
2410 | static void |
1241 | fd_rearm_all (EV_P) |
2411 | fd_rearm_all (EV_P) |
1242 | { |
2412 | { |
1243 | int fd; |
2413 | int fd; |
1244 | |
2414 | |
1245 | for (fd = 0; fd < anfdmax; ++fd) |
2415 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1298 | ev_tstamp minat; |
2468 | ev_tstamp minat; |
1299 | ANHE *minpos; |
2469 | ANHE *minpos; |
1300 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2470 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1301 | |
2471 | |
1302 | /* find minimum child */ |
2472 | /* find minimum child */ |
1303 | if (expect_true (pos + DHEAP - 1 < E)) |
2473 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1304 | { |
2474 | { |
1305 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2475 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1306 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2476 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1307 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2477 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1308 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2478 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1309 | } |
2479 | } |
1310 | else if (pos < E) |
2480 | else if (pos < E) |
1311 | { |
2481 | { |
1312 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2482 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1313 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2483 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1314 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2484 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1315 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2485 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1316 | } |
2486 | } |
1317 | else |
2487 | else |
1318 | break; |
2488 | break; |
1319 | |
2489 | |
1320 | if (ANHE_at (he) <= minat) |
2490 | if (ANHE_at (he) <= minat) |
… | |
… | |
1328 | |
2498 | |
1329 | heap [k] = he; |
2499 | heap [k] = he; |
1330 | ev_active (ANHE_w (he)) = k; |
2500 | ev_active (ANHE_w (he)) = k; |
1331 | } |
2501 | } |
1332 | |
2502 | |
1333 | #else /* 4HEAP */ |
2503 | #else /* not 4HEAP */ |
1334 | |
2504 | |
1335 | #define HEAP0 1 |
2505 | #define HEAP0 1 |
1336 | #define HPARENT(k) ((k) >> 1) |
2506 | #define HPARENT(k) ((k) >> 1) |
1337 | #define UPHEAP_DONE(p,k) (!(p)) |
2507 | #define UPHEAP_DONE(p,k) (!(p)) |
1338 | |
2508 | |
… | |
… | |
1426 | |
2596 | |
1427 | /*****************************************************************************/ |
2597 | /*****************************************************************************/ |
1428 | |
2598 | |
1429 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2599 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1430 | |
2600 | |
1431 | static void noinline ecb_cold |
2601 | ecb_noinline ecb_cold |
|
|
2602 | static void |
1432 | evpipe_init (EV_P) |
2603 | evpipe_init (EV_P) |
1433 | { |
2604 | { |
1434 | if (!ev_is_active (&pipe_w)) |
2605 | if (!ev_is_active (&pipe_w)) |
1435 | { |
2606 | { |
|
|
2607 | int fds [2]; |
|
|
2608 | |
1436 | # if EV_USE_EVENTFD |
2609 | # if EV_USE_EVENTFD |
|
|
2610 | fds [0] = -1; |
1437 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2611 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1438 | if (evfd < 0 && errno == EINVAL) |
2612 | if (fds [1] < 0 && errno == EINVAL) |
1439 | evfd = eventfd (0, 0); |
2613 | fds [1] = eventfd (0, 0); |
1440 | |
2614 | |
1441 | if (evfd >= 0) |
2615 | if (fds [1] < 0) |
|
|
2616 | # endif |
1442 | { |
2617 | { |
|
|
2618 | while (pipe (fds)) |
|
|
2619 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2620 | |
|
|
2621 | fd_intern (fds [0]); |
|
|
2622 | } |
|
|
2623 | |
1443 | evpipe [0] = -1; |
2624 | evpipe [0] = fds [0]; |
1444 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2625 | |
1445 | ev_io_set (&pipe_w, evfd, EV_READ); |
2626 | if (evpipe [1] < 0) |
|
|
2627 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2628 | else |
|
|
2629 | { |
|
|
2630 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2631 | /* so that evpipe_write can always rely on its value. */ |
|
|
2632 | /* this branch does not do anything sensible on windows, */ |
|
|
2633 | /* so must not be executed on windows */ |
|
|
2634 | |
|
|
2635 | dup2 (fds [1], evpipe [1]); |
|
|
2636 | close (fds [1]); |
|
|
2637 | } |
|
|
2638 | |
|
|
2639 | fd_intern (evpipe [1]); |
|
|
2640 | |
|
|
2641 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2642 | ev_io_start (EV_A_ &pipe_w); |
|
|
2643 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2644 | } |
|
|
2645 | } |
|
|
2646 | |
|
|
2647 | inline_speed void |
|
|
2648 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2649 | { |
|
|
2650 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2651 | |
|
|
2652 | if (ecb_expect_true (*flag)) |
|
|
2653 | return; |
|
|
2654 | |
|
|
2655 | *flag = 1; |
|
|
2656 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2657 | |
|
|
2658 | pipe_write_skipped = 1; |
|
|
2659 | |
|
|
2660 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2661 | |
|
|
2662 | if (pipe_write_wanted) |
|
|
2663 | { |
|
|
2664 | int old_errno; |
|
|
2665 | |
|
|
2666 | pipe_write_skipped = 0; |
|
|
2667 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2668 | |
|
|
2669 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2670 | |
|
|
2671 | #if EV_USE_EVENTFD |
|
|
2672 | if (evpipe [0] < 0) |
|
|
2673 | { |
|
|
2674 | uint64_t counter = 1; |
|
|
2675 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1446 | } |
2676 | } |
1447 | else |
2677 | else |
1448 | # endif |
2678 | #endif |
1449 | { |
2679 | { |
1450 | while (pipe (evpipe)) |
2680 | #ifdef _WIN32 |
1451 | ev_syserr ("(libev) error creating signal/async pipe"); |
2681 | WSABUF buf; |
1452 | |
2682 | DWORD sent; |
1453 | fd_intern (evpipe [0]); |
2683 | buf.buf = (char *)&buf; |
1454 | fd_intern (evpipe [1]); |
2684 | buf.len = 1; |
1455 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2685 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1456 | } |
2686 | #else |
1457 | |
|
|
1458 | ev_io_start (EV_A_ &pipe_w); |
|
|
1459 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1460 | } |
|
|
1461 | } |
|
|
1462 | |
|
|
1463 | inline_speed void |
|
|
1464 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1465 | { |
|
|
1466 | if (expect_true (*flag)) |
|
|
1467 | return; |
|
|
1468 | |
|
|
1469 | *flag = 1; |
|
|
1470 | |
|
|
1471 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1472 | |
|
|
1473 | pipe_write_skipped = 1; |
|
|
1474 | |
|
|
1475 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1476 | |
|
|
1477 | if (pipe_write_wanted) |
|
|
1478 | { |
|
|
1479 | int old_errno; |
|
|
1480 | |
|
|
1481 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
|
|
1482 | |
|
|
1483 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1484 | |
|
|
1485 | #if EV_USE_EVENTFD |
|
|
1486 | if (evfd >= 0) |
|
|
1487 | { |
|
|
1488 | uint64_t counter = 1; |
|
|
1489 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1490 | } |
|
|
1491 | else |
|
|
1492 | #endif |
|
|
1493 | { |
|
|
1494 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1495 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1496 | /* so when you think this write should be a send instead, please find out */ |
|
|
1497 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1498 | /* tell me. thank you. */ |
|
|
1499 | write (evpipe [1], &(evpipe [1]), 1); |
2687 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2688 | #endif |
1500 | } |
2689 | } |
1501 | |
2690 | |
1502 | errno = old_errno; |
2691 | errno = old_errno; |
1503 | } |
2692 | } |
1504 | } |
2693 | } |
… | |
… | |
1511 | int i; |
2700 | int i; |
1512 | |
2701 | |
1513 | if (revents & EV_READ) |
2702 | if (revents & EV_READ) |
1514 | { |
2703 | { |
1515 | #if EV_USE_EVENTFD |
2704 | #if EV_USE_EVENTFD |
1516 | if (evfd >= 0) |
2705 | if (evpipe [0] < 0) |
1517 | { |
2706 | { |
1518 | uint64_t counter; |
2707 | uint64_t counter; |
1519 | read (evfd, &counter, sizeof (uint64_t)); |
2708 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1520 | } |
2709 | } |
1521 | else |
2710 | else |
1522 | #endif |
2711 | #endif |
1523 | { |
2712 | { |
1524 | char dummy; |
2713 | char dummy[4]; |
1525 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2714 | #ifdef _WIN32 |
|
|
2715 | WSABUF buf; |
|
|
2716 | DWORD recvd; |
|
|
2717 | DWORD flags = 0; |
|
|
2718 | buf.buf = dummy; |
|
|
2719 | buf.len = sizeof (dummy); |
|
|
2720 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2721 | #else |
1526 | read (evpipe [0], &dummy, 1); |
2722 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2723 | #endif |
1527 | } |
2724 | } |
1528 | } |
2725 | } |
1529 | |
2726 | |
1530 | pipe_write_skipped = 0; |
2727 | pipe_write_skipped = 0; |
|
|
2728 | |
|
|
2729 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1531 | |
2730 | |
1532 | #if EV_SIGNAL_ENABLE |
2731 | #if EV_SIGNAL_ENABLE |
1533 | if (sig_pending) |
2732 | if (sig_pending) |
1534 | { |
2733 | { |
1535 | sig_pending = 0; |
2734 | sig_pending = 0; |
1536 | |
2735 | |
|
|
2736 | ECB_MEMORY_FENCE; |
|
|
2737 | |
1537 | for (i = EV_NSIG - 1; i--; ) |
2738 | for (i = EV_NSIG - 1; i--; ) |
1538 | if (expect_false (signals [i].pending)) |
2739 | if (ecb_expect_false (signals [i].pending)) |
1539 | ev_feed_signal_event (EV_A_ i + 1); |
2740 | ev_feed_signal_event (EV_A_ i + 1); |
1540 | } |
2741 | } |
1541 | #endif |
2742 | #endif |
1542 | |
2743 | |
1543 | #if EV_ASYNC_ENABLE |
2744 | #if EV_ASYNC_ENABLE |
1544 | if (async_pending) |
2745 | if (async_pending) |
1545 | { |
2746 | { |
1546 | async_pending = 0; |
2747 | async_pending = 0; |
|
|
2748 | |
|
|
2749 | ECB_MEMORY_FENCE; |
1547 | |
2750 | |
1548 | for (i = asynccnt; i--; ) |
2751 | for (i = asynccnt; i--; ) |
1549 | if (asyncs [i]->sent) |
2752 | if (asyncs [i]->sent) |
1550 | { |
2753 | { |
1551 | asyncs [i]->sent = 0; |
2754 | asyncs [i]->sent = 0; |
|
|
2755 | ECB_MEMORY_FENCE_RELEASE; |
1552 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2756 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1553 | } |
2757 | } |
1554 | } |
2758 | } |
1555 | #endif |
2759 | #endif |
1556 | } |
2760 | } |
1557 | |
2761 | |
1558 | /*****************************************************************************/ |
2762 | /*****************************************************************************/ |
1559 | |
2763 | |
1560 | void |
2764 | void |
1561 | ev_feed_signal (int signum) |
2765 | ev_feed_signal (int signum) EV_NOEXCEPT |
1562 | { |
2766 | { |
1563 | #if EV_MULTIPLICITY |
2767 | #if EV_MULTIPLICITY |
|
|
2768 | EV_P; |
|
|
2769 | ECB_MEMORY_FENCE_ACQUIRE; |
1564 | EV_P = signals [signum - 1].loop; |
2770 | EV_A = signals [signum - 1].loop; |
1565 | |
2771 | |
1566 | if (!EV_A) |
2772 | if (!EV_A) |
1567 | return; |
2773 | return; |
1568 | #endif |
2774 | #endif |
1569 | |
2775 | |
1570 | if (!ev_active (&pipe_w)) |
|
|
1571 | return; |
|
|
1572 | |
|
|
1573 | signals [signum - 1].pending = 1; |
2776 | signals [signum - 1].pending = 1; |
1574 | evpipe_write (EV_A_ &sig_pending); |
2777 | evpipe_write (EV_A_ &sig_pending); |
1575 | } |
2778 | } |
1576 | |
2779 | |
1577 | static void |
2780 | static void |
… | |
… | |
1582 | #endif |
2785 | #endif |
1583 | |
2786 | |
1584 | ev_feed_signal (signum); |
2787 | ev_feed_signal (signum); |
1585 | } |
2788 | } |
1586 | |
2789 | |
1587 | void noinline |
2790 | ecb_noinline |
|
|
2791 | void |
1588 | ev_feed_signal_event (EV_P_ int signum) |
2792 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1589 | { |
2793 | { |
1590 | WL w; |
2794 | WL w; |
1591 | |
2795 | |
1592 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2796 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
1593 | return; |
2797 | return; |
1594 | |
2798 | |
1595 | --signum; |
2799 | --signum; |
1596 | |
2800 | |
1597 | #if EV_MULTIPLICITY |
2801 | #if EV_MULTIPLICITY |
1598 | /* it is permissible to try to feed a signal to the wrong loop */ |
2802 | /* it is permissible to try to feed a signal to the wrong loop */ |
1599 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2803 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1600 | |
2804 | |
1601 | if (expect_false (signals [signum].loop != EV_A)) |
2805 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1602 | return; |
2806 | return; |
1603 | #endif |
2807 | #endif |
1604 | |
2808 | |
1605 | signals [signum].pending = 0; |
2809 | signals [signum].pending = 0; |
|
|
2810 | ECB_MEMORY_FENCE_RELEASE; |
1606 | |
2811 | |
1607 | for (w = signals [signum].head; w; w = w->next) |
2812 | for (w = signals [signum].head; w; w = w->next) |
1608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2813 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1609 | } |
2814 | } |
1610 | |
2815 | |
… | |
… | |
1689 | |
2894 | |
1690 | #endif |
2895 | #endif |
1691 | |
2896 | |
1692 | /*****************************************************************************/ |
2897 | /*****************************************************************************/ |
1693 | |
2898 | |
|
|
2899 | #if EV_USE_TIMERFD |
|
|
2900 | |
|
|
2901 | static void periodics_reschedule (EV_P); |
|
|
2902 | |
|
|
2903 | static void |
|
|
2904 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2905 | { |
|
|
2906 | struct itimerspec its = { 0 }; |
|
|
2907 | |
|
|
2908 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2909 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2910 | * be a problem. */ |
|
|
2911 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2912 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2913 | |
|
|
2914 | ev_rt_now = ev_time (); |
|
|
2915 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2916 | /* but maybe in the future we want the full treatment. */ |
|
|
2917 | /* |
|
|
2918 | now_floor = EV_TS_CONST (0.); |
|
|
2919 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2920 | */ |
|
|
2921 | periodics_reschedule (EV_A); |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | ecb_noinline ecb_cold |
|
|
2925 | static void |
|
|
2926 | evtimerfd_init (EV_P) |
|
|
2927 | { |
|
|
2928 | if (!ev_is_active (&timerfd_w)) |
|
|
2929 | { |
|
|
2930 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2931 | |
|
|
2932 | if (timerfd >= 0) |
|
|
2933 | { |
|
|
2934 | fd_intern (timerfd); /* just to be sure */ |
|
|
2935 | |
|
|
2936 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2937 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2938 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2939 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2940 | |
|
|
2941 | /* (re-) arm timer */ |
|
|
2942 | timerfdcb (EV_A_ 0, 0); |
|
|
2943 | } |
|
|
2944 | } |
|
|
2945 | } |
|
|
2946 | |
|
|
2947 | #endif |
|
|
2948 | |
|
|
2949 | /*****************************************************************************/ |
|
|
2950 | |
1694 | #if EV_USE_IOCP |
2951 | #if EV_USE_IOCP |
1695 | # include "ev_iocp.c" |
2952 | # include "ev_iocp.c" |
1696 | #endif |
2953 | #endif |
1697 | #if EV_USE_PORT |
2954 | #if EV_USE_PORT |
1698 | # include "ev_port.c" |
2955 | # include "ev_port.c" |
… | |
… | |
1701 | # include "ev_kqueue.c" |
2958 | # include "ev_kqueue.c" |
1702 | #endif |
2959 | #endif |
1703 | #if EV_USE_EPOLL |
2960 | #if EV_USE_EPOLL |
1704 | # include "ev_epoll.c" |
2961 | # include "ev_epoll.c" |
1705 | #endif |
2962 | #endif |
|
|
2963 | #if EV_USE_LINUXAIO |
|
|
2964 | # include "ev_linuxaio.c" |
|
|
2965 | #endif |
|
|
2966 | #if EV_USE_IOURING |
|
|
2967 | # include "ev_iouring.c" |
|
|
2968 | #endif |
1706 | #if EV_USE_POLL |
2969 | #if EV_USE_POLL |
1707 | # include "ev_poll.c" |
2970 | # include "ev_poll.c" |
1708 | #endif |
2971 | #endif |
1709 | #if EV_USE_SELECT |
2972 | #if EV_USE_SELECT |
1710 | # include "ev_select.c" |
2973 | # include "ev_select.c" |
1711 | #endif |
2974 | #endif |
1712 | |
2975 | |
1713 | int ecb_cold |
2976 | ecb_cold int |
1714 | ev_version_major (void) |
2977 | ev_version_major (void) EV_NOEXCEPT |
1715 | { |
2978 | { |
1716 | return EV_VERSION_MAJOR; |
2979 | return EV_VERSION_MAJOR; |
1717 | } |
2980 | } |
1718 | |
2981 | |
1719 | int ecb_cold |
2982 | ecb_cold int |
1720 | ev_version_minor (void) |
2983 | ev_version_minor (void) EV_NOEXCEPT |
1721 | { |
2984 | { |
1722 | return EV_VERSION_MINOR; |
2985 | return EV_VERSION_MINOR; |
1723 | } |
2986 | } |
1724 | |
2987 | |
1725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2988 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1726 | int inline_size ecb_cold |
2989 | inline_size ecb_cold int |
1727 | enable_secure (void) |
2990 | enable_secure (void) |
1728 | { |
2991 | { |
1729 | #ifdef _WIN32 |
2992 | #ifdef _WIN32 |
1730 | return 0; |
2993 | return 0; |
1731 | #else |
2994 | #else |
1732 | return getuid () != geteuid () |
2995 | return getuid () != geteuid () |
1733 | || getgid () != getegid (); |
2996 | || getgid () != getegid (); |
1734 | #endif |
2997 | #endif |
1735 | } |
2998 | } |
1736 | |
2999 | |
1737 | unsigned int ecb_cold |
3000 | ecb_cold |
|
|
3001 | unsigned int |
1738 | ev_supported_backends (void) |
3002 | ev_supported_backends (void) EV_NOEXCEPT |
1739 | { |
3003 | { |
1740 | unsigned int flags = 0; |
3004 | unsigned int flags = 0; |
1741 | |
3005 | |
1742 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3006 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1743 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3007 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1744 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3008 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
1745 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3009 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
1746 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3010 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
1747 | |
3011 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3012 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3013 | |
1748 | return flags; |
3014 | return flags; |
1749 | } |
3015 | } |
1750 | |
3016 | |
1751 | unsigned int ecb_cold |
3017 | ecb_cold |
|
|
3018 | unsigned int |
1752 | ev_recommended_backends (void) |
3019 | ev_recommended_backends (void) EV_NOEXCEPT |
1753 | { |
3020 | { |
1754 | unsigned int flags = ev_supported_backends (); |
3021 | unsigned int flags = ev_supported_backends (); |
1755 | |
3022 | |
1756 | #ifndef __NetBSD__ |
3023 | #ifndef __NetBSD__ |
1757 | /* kqueue is borked on everything but netbsd apparently */ |
3024 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1765 | #endif |
3032 | #endif |
1766 | #ifdef __FreeBSD__ |
3033 | #ifdef __FreeBSD__ |
1767 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3034 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
1768 | #endif |
3035 | #endif |
1769 | |
3036 | |
|
|
3037 | /* TODO: linuxaio is very experimental */ |
|
|
3038 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3039 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3040 | #endif |
|
|
3041 | /* TODO: linuxaio is super experimental */ |
|
|
3042 | #if !EV_RECOMMEND_IOURING |
|
|
3043 | flags &= ~EVBACKEND_IOURING; |
|
|
3044 | #endif |
|
|
3045 | |
1770 | return flags; |
3046 | return flags; |
1771 | } |
3047 | } |
1772 | |
3048 | |
1773 | unsigned int ecb_cold |
3049 | ecb_cold |
|
|
3050 | unsigned int |
1774 | ev_embeddable_backends (void) |
3051 | ev_embeddable_backends (void) EV_NOEXCEPT |
1775 | { |
3052 | { |
1776 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3053 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1777 | |
3054 | |
1778 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3055 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1779 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3056 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1780 | flags &= ~EVBACKEND_EPOLL; |
3057 | flags &= ~EVBACKEND_EPOLL; |
1781 | |
3058 | |
|
|
3059 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3060 | |
|
|
3061 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
3062 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
3063 | * if the kernel ever is fixed, this might change... |
|
|
3064 | */ |
|
|
3065 | |
1782 | return flags; |
3066 | return flags; |
1783 | } |
3067 | } |
1784 | |
3068 | |
1785 | unsigned int |
3069 | unsigned int |
1786 | ev_backend (EV_P) |
3070 | ev_backend (EV_P) EV_NOEXCEPT |
1787 | { |
3071 | { |
1788 | return backend; |
3072 | return backend; |
1789 | } |
3073 | } |
1790 | |
3074 | |
1791 | #if EV_FEATURE_API |
3075 | #if EV_FEATURE_API |
1792 | unsigned int |
3076 | unsigned int |
1793 | ev_iteration (EV_P) |
3077 | ev_iteration (EV_P) EV_NOEXCEPT |
1794 | { |
3078 | { |
1795 | return loop_count; |
3079 | return loop_count; |
1796 | } |
3080 | } |
1797 | |
3081 | |
1798 | unsigned int |
3082 | unsigned int |
1799 | ev_depth (EV_P) |
3083 | ev_depth (EV_P) EV_NOEXCEPT |
1800 | { |
3084 | { |
1801 | return loop_depth; |
3085 | return loop_depth; |
1802 | } |
3086 | } |
1803 | |
3087 | |
1804 | void |
3088 | void |
1805 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3089 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1806 | { |
3090 | { |
1807 | io_blocktime = interval; |
3091 | io_blocktime = interval; |
1808 | } |
3092 | } |
1809 | |
3093 | |
1810 | void |
3094 | void |
1811 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3095 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1812 | { |
3096 | { |
1813 | timeout_blocktime = interval; |
3097 | timeout_blocktime = interval; |
1814 | } |
3098 | } |
1815 | |
3099 | |
1816 | void |
3100 | void |
1817 | ev_set_userdata (EV_P_ void *data) |
3101 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
1818 | { |
3102 | { |
1819 | userdata = data; |
3103 | userdata = data; |
1820 | } |
3104 | } |
1821 | |
3105 | |
1822 | void * |
3106 | void * |
1823 | ev_userdata (EV_P) |
3107 | ev_userdata (EV_P) EV_NOEXCEPT |
1824 | { |
3108 | { |
1825 | return userdata; |
3109 | return userdata; |
1826 | } |
3110 | } |
1827 | |
3111 | |
1828 | void |
3112 | void |
1829 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
3113 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
1830 | { |
3114 | { |
1831 | invoke_cb = invoke_pending_cb; |
3115 | invoke_cb = invoke_pending_cb; |
1832 | } |
3116 | } |
1833 | |
3117 | |
1834 | void |
3118 | void |
1835 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
3119 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
1836 | { |
3120 | { |
1837 | release_cb = release; |
3121 | release_cb = release; |
1838 | acquire_cb = acquire; |
3122 | acquire_cb = acquire; |
1839 | } |
3123 | } |
1840 | #endif |
3124 | #endif |
1841 | |
3125 | |
1842 | /* initialise a loop structure, must be zero-initialised */ |
3126 | /* initialise a loop structure, must be zero-initialised */ |
1843 | static void noinline ecb_cold |
3127 | ecb_noinline ecb_cold |
|
|
3128 | static void |
1844 | loop_init (EV_P_ unsigned int flags) |
3129 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1845 | { |
3130 | { |
1846 | if (!backend) |
3131 | if (!backend) |
1847 | { |
3132 | { |
1848 | origflags = flags; |
3133 | origflags = flags; |
1849 | |
3134 | |
… | |
… | |
1894 | #if EV_ASYNC_ENABLE |
3179 | #if EV_ASYNC_ENABLE |
1895 | async_pending = 0; |
3180 | async_pending = 0; |
1896 | #endif |
3181 | #endif |
1897 | pipe_write_skipped = 0; |
3182 | pipe_write_skipped = 0; |
1898 | pipe_write_wanted = 0; |
3183 | pipe_write_wanted = 0; |
|
|
3184 | evpipe [0] = -1; |
|
|
3185 | evpipe [1] = -1; |
1899 | #if EV_USE_INOTIFY |
3186 | #if EV_USE_INOTIFY |
1900 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3187 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1901 | #endif |
3188 | #endif |
1902 | #if EV_USE_SIGNALFD |
3189 | #if EV_USE_SIGNALFD |
1903 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3190 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1904 | #endif |
3191 | #endif |
|
|
3192 | #if EV_USE_TIMERFD |
|
|
3193 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3194 | #endif |
1905 | |
3195 | |
1906 | if (!(flags & EVBACKEND_MASK)) |
3196 | if (!(flags & EVBACKEND_MASK)) |
1907 | flags |= ev_recommended_backends (); |
3197 | flags |= ev_recommended_backends (); |
1908 | |
3198 | |
1909 | #if EV_USE_IOCP |
3199 | #if EV_USE_IOCP |
1910 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3200 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
1911 | #endif |
3201 | #endif |
1912 | #if EV_USE_PORT |
3202 | #if EV_USE_PORT |
1913 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3203 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1914 | #endif |
3204 | #endif |
1915 | #if EV_USE_KQUEUE |
3205 | #if EV_USE_KQUEUE |
1916 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3206 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3207 | #endif |
|
|
3208 | #if EV_USE_IOURING |
|
|
3209 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3210 | #endif |
|
|
3211 | #if EV_USE_LINUXAIO |
|
|
3212 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1917 | #endif |
3213 | #endif |
1918 | #if EV_USE_EPOLL |
3214 | #if EV_USE_EPOLL |
1919 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3215 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1920 | #endif |
3216 | #endif |
1921 | #if EV_USE_POLL |
3217 | #if EV_USE_POLL |
1922 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3218 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1923 | #endif |
3219 | #endif |
1924 | #if EV_USE_SELECT |
3220 | #if EV_USE_SELECT |
1925 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3221 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1926 | #endif |
3222 | #endif |
1927 | |
3223 | |
1928 | ev_prepare_init (&pending_w, pendingcb); |
3224 | ev_prepare_init (&pending_w, pendingcb); |
1929 | |
3225 | |
1930 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3226 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
1933 | #endif |
3229 | #endif |
1934 | } |
3230 | } |
1935 | } |
3231 | } |
1936 | |
3232 | |
1937 | /* free up a loop structure */ |
3233 | /* free up a loop structure */ |
1938 | void ecb_cold |
3234 | ecb_cold |
|
|
3235 | void |
1939 | ev_loop_destroy (EV_P) |
3236 | ev_loop_destroy (EV_P) |
1940 | { |
3237 | { |
1941 | int i; |
3238 | int i; |
1942 | |
3239 | |
1943 | #if EV_MULTIPLICITY |
3240 | #if EV_MULTIPLICITY |
… | |
… | |
1946 | return; |
3243 | return; |
1947 | #endif |
3244 | #endif |
1948 | |
3245 | |
1949 | #if EV_CLEANUP_ENABLE |
3246 | #if EV_CLEANUP_ENABLE |
1950 | /* queue cleanup watchers (and execute them) */ |
3247 | /* queue cleanup watchers (and execute them) */ |
1951 | if (expect_false (cleanupcnt)) |
3248 | if (ecb_expect_false (cleanupcnt)) |
1952 | { |
3249 | { |
1953 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3250 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
1954 | EV_INVOKE_PENDING; |
3251 | EV_INVOKE_PENDING; |
1955 | } |
3252 | } |
1956 | #endif |
3253 | #endif |
1957 | |
3254 | |
1958 | #if EV_CHILD_ENABLE |
3255 | #if EV_CHILD_ENABLE |
1959 | if (ev_is_active (&childev)) |
3256 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1960 | { |
3257 | { |
1961 | ev_ref (EV_A); /* child watcher */ |
3258 | ev_ref (EV_A); /* child watcher */ |
1962 | ev_signal_stop (EV_A_ &childev); |
3259 | ev_signal_stop (EV_A_ &childev); |
1963 | } |
3260 | } |
1964 | #endif |
3261 | #endif |
… | |
… | |
1966 | if (ev_is_active (&pipe_w)) |
3263 | if (ev_is_active (&pipe_w)) |
1967 | { |
3264 | { |
1968 | /*ev_ref (EV_A);*/ |
3265 | /*ev_ref (EV_A);*/ |
1969 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
3266 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1970 | |
3267 | |
1971 | #if EV_USE_EVENTFD |
|
|
1972 | if (evfd >= 0) |
|
|
1973 | close (evfd); |
|
|
1974 | #endif |
|
|
1975 | |
|
|
1976 | if (evpipe [0] >= 0) |
|
|
1977 | { |
|
|
1978 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3268 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1979 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3269 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1980 | } |
|
|
1981 | } |
3270 | } |
1982 | |
3271 | |
1983 | #if EV_USE_SIGNALFD |
3272 | #if EV_USE_SIGNALFD |
1984 | if (ev_is_active (&sigfd_w)) |
3273 | if (ev_is_active (&sigfd_w)) |
1985 | close (sigfd); |
3274 | close (sigfd); |
1986 | #endif |
3275 | #endif |
1987 | |
3276 | |
|
|
3277 | #if EV_USE_TIMERFD |
|
|
3278 | if (ev_is_active (&timerfd_w)) |
|
|
3279 | close (timerfd); |
|
|
3280 | #endif |
|
|
3281 | |
1988 | #if EV_USE_INOTIFY |
3282 | #if EV_USE_INOTIFY |
1989 | if (fs_fd >= 0) |
3283 | if (fs_fd >= 0) |
1990 | close (fs_fd); |
3284 | close (fs_fd); |
1991 | #endif |
3285 | #endif |
1992 | |
3286 | |
1993 | if (backend_fd >= 0) |
3287 | if (backend_fd >= 0) |
1994 | close (backend_fd); |
3288 | close (backend_fd); |
1995 | |
3289 | |
1996 | #if EV_USE_IOCP |
3290 | #if EV_USE_IOCP |
1997 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3291 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
1998 | #endif |
3292 | #endif |
1999 | #if EV_USE_PORT |
3293 | #if EV_USE_PORT |
2000 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3294 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2001 | #endif |
3295 | #endif |
2002 | #if EV_USE_KQUEUE |
3296 | #if EV_USE_KQUEUE |
2003 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3297 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3298 | #endif |
|
|
3299 | #if EV_USE_IOURING |
|
|
3300 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3301 | #endif |
|
|
3302 | #if EV_USE_LINUXAIO |
|
|
3303 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2004 | #endif |
3304 | #endif |
2005 | #if EV_USE_EPOLL |
3305 | #if EV_USE_EPOLL |
2006 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3306 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2007 | #endif |
3307 | #endif |
2008 | #if EV_USE_POLL |
3308 | #if EV_USE_POLL |
2009 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3309 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2010 | #endif |
3310 | #endif |
2011 | #if EV_USE_SELECT |
3311 | #if EV_USE_SELECT |
2012 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3312 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2013 | #endif |
3313 | #endif |
2014 | |
3314 | |
2015 | for (i = NUMPRI; i--; ) |
3315 | for (i = NUMPRI; i--; ) |
2016 | { |
3316 | { |
2017 | array_free (pending, [i]); |
3317 | array_free (pending, [i]); |
… | |
… | |
2059 | |
3359 | |
2060 | inline_size void |
3360 | inline_size void |
2061 | loop_fork (EV_P) |
3361 | loop_fork (EV_P) |
2062 | { |
3362 | { |
2063 | #if EV_USE_PORT |
3363 | #if EV_USE_PORT |
2064 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3364 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2065 | #endif |
3365 | #endif |
2066 | #if EV_USE_KQUEUE |
3366 | #if EV_USE_KQUEUE |
2067 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3367 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3368 | #endif |
|
|
3369 | #if EV_USE_IOURING |
|
|
3370 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3371 | #endif |
|
|
3372 | #if EV_USE_LINUXAIO |
|
|
3373 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2068 | #endif |
3374 | #endif |
2069 | #if EV_USE_EPOLL |
3375 | #if EV_USE_EPOLL |
2070 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3376 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2071 | #endif |
3377 | #endif |
2072 | #if EV_USE_INOTIFY |
3378 | #if EV_USE_INOTIFY |
2073 | infy_fork (EV_A); |
3379 | infy_fork (EV_A); |
2074 | #endif |
3380 | #endif |
2075 | |
3381 | |
|
|
3382 | if (postfork != 2) |
|
|
3383 | { |
|
|
3384 | #if EV_USE_SIGNALFD |
|
|
3385 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3386 | #endif |
|
|
3387 | |
|
|
3388 | #if EV_USE_TIMERFD |
|
|
3389 | if (ev_is_active (&timerfd_w)) |
|
|
3390 | { |
|
|
3391 | ev_ref (EV_A); |
|
|
3392 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3393 | |
|
|
3394 | close (timerfd); |
|
|
3395 | timerfd = -2; |
|
|
3396 | |
|
|
3397 | evtimerfd_init (EV_A); |
|
|
3398 | /* reschedule periodics, in case we missed something */ |
|
|
3399 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3400 | } |
|
|
3401 | #endif |
|
|
3402 | |
|
|
3403 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2076 | if (ev_is_active (&pipe_w)) |
3404 | if (ev_is_active (&pipe_w)) |
2077 | { |
3405 | { |
2078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3406 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2079 | |
3407 | |
2080 | ev_ref (EV_A); |
3408 | ev_ref (EV_A); |
2081 | ev_io_stop (EV_A_ &pipe_w); |
3409 | ev_io_stop (EV_A_ &pipe_w); |
2082 | |
3410 | |
2083 | #if EV_USE_EVENTFD |
|
|
2084 | if (evfd >= 0) |
|
|
2085 | close (evfd); |
|
|
2086 | #endif |
|
|
2087 | |
|
|
2088 | if (evpipe [0] >= 0) |
3411 | if (evpipe [0] >= 0) |
2089 | { |
|
|
2090 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3412 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2091 | EV_WIN32_CLOSE_FD (evpipe [1]); |
3413 | |
|
|
3414 | evpipe_init (EV_A); |
|
|
3415 | /* iterate over everything, in case we missed something before */ |
|
|
3416 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2092 | } |
3417 | } |
2093 | |
3418 | #endif |
2094 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2095 | evpipe_init (EV_A); |
|
|
2096 | /* now iterate over everything, in case we missed something */ |
|
|
2097 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2098 | #endif |
|
|
2099 | } |
3419 | } |
2100 | |
3420 | |
2101 | postfork = 0; |
3421 | postfork = 0; |
2102 | } |
3422 | } |
2103 | |
3423 | |
2104 | #if EV_MULTIPLICITY |
3424 | #if EV_MULTIPLICITY |
2105 | |
3425 | |
|
|
3426 | ecb_cold |
2106 | struct ev_loop * ecb_cold |
3427 | struct ev_loop * |
2107 | ev_loop_new (unsigned int flags) |
3428 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2108 | { |
3429 | { |
2109 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3430 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2110 | |
3431 | |
2111 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3432 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2112 | loop_init (EV_A_ flags); |
3433 | loop_init (EV_A_ flags); |
… | |
… | |
2119 | } |
3440 | } |
2120 | |
3441 | |
2121 | #endif /* multiplicity */ |
3442 | #endif /* multiplicity */ |
2122 | |
3443 | |
2123 | #if EV_VERIFY |
3444 | #if EV_VERIFY |
2124 | static void noinline ecb_cold |
3445 | ecb_noinline ecb_cold |
|
|
3446 | static void |
2125 | verify_watcher (EV_P_ W w) |
3447 | verify_watcher (EV_P_ W w) |
2126 | { |
3448 | { |
2127 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3449 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2128 | |
3450 | |
2129 | if (w->pending) |
3451 | if (w->pending) |
2130 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3452 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2131 | } |
3453 | } |
2132 | |
3454 | |
2133 | static void noinline ecb_cold |
3455 | ecb_noinline ecb_cold |
|
|
3456 | static void |
2134 | verify_heap (EV_P_ ANHE *heap, int N) |
3457 | verify_heap (EV_P_ ANHE *heap, int N) |
2135 | { |
3458 | { |
2136 | int i; |
3459 | int i; |
2137 | |
3460 | |
2138 | for (i = HEAP0; i < N + HEAP0; ++i) |
3461 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2143 | |
3466 | |
2144 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3467 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2145 | } |
3468 | } |
2146 | } |
3469 | } |
2147 | |
3470 | |
2148 | static void noinline ecb_cold |
3471 | ecb_noinline ecb_cold |
|
|
3472 | static void |
2149 | array_verify (EV_P_ W *ws, int cnt) |
3473 | array_verify (EV_P_ W *ws, int cnt) |
2150 | { |
3474 | { |
2151 | while (cnt--) |
3475 | while (cnt--) |
2152 | { |
3476 | { |
2153 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3477 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2156 | } |
3480 | } |
2157 | #endif |
3481 | #endif |
2158 | |
3482 | |
2159 | #if EV_FEATURE_API |
3483 | #if EV_FEATURE_API |
2160 | void ecb_cold |
3484 | void ecb_cold |
2161 | ev_verify (EV_P) |
3485 | ev_verify (EV_P) EV_NOEXCEPT |
2162 | { |
3486 | { |
2163 | #if EV_VERIFY |
3487 | #if EV_VERIFY |
2164 | int i; |
3488 | int i; |
2165 | WL w; |
3489 | WL w, w2; |
2166 | |
3490 | |
2167 | assert (activecnt >= -1); |
3491 | assert (activecnt >= -1); |
2168 | |
3492 | |
2169 | assert (fdchangemax >= fdchangecnt); |
3493 | assert (fdchangemax >= fdchangecnt); |
2170 | for (i = 0; i < fdchangecnt; ++i) |
3494 | for (i = 0; i < fdchangecnt; ++i) |
2171 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3495 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2172 | |
3496 | |
2173 | assert (anfdmax >= 0); |
3497 | assert (anfdmax >= 0); |
2174 | for (i = 0; i < anfdmax; ++i) |
3498 | for (i = 0; i < anfdmax; ++i) |
|
|
3499 | { |
|
|
3500 | int j = 0; |
|
|
3501 | |
2175 | for (w = anfds [i].head; w; w = w->next) |
3502 | for (w = w2 = anfds [i].head; w; w = w->next) |
2176 | { |
3503 | { |
2177 | verify_watcher (EV_A_ (W)w); |
3504 | verify_watcher (EV_A_ (W)w); |
|
|
3505 | |
|
|
3506 | if (j++ & 1) |
|
|
3507 | { |
|
|
3508 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3509 | w2 = w2->next; |
|
|
3510 | } |
|
|
3511 | |
2178 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3512 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2179 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3513 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2180 | } |
3514 | } |
|
|
3515 | } |
2181 | |
3516 | |
2182 | assert (timermax >= timercnt); |
3517 | assert (timermax >= timercnt); |
2183 | verify_heap (EV_A_ timers, timercnt); |
3518 | verify_heap (EV_A_ timers, timercnt); |
2184 | |
3519 | |
2185 | #if EV_PERIODIC_ENABLE |
3520 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2231 | #endif |
3566 | #endif |
2232 | } |
3567 | } |
2233 | #endif |
3568 | #endif |
2234 | |
3569 | |
2235 | #if EV_MULTIPLICITY |
3570 | #if EV_MULTIPLICITY |
|
|
3571 | ecb_cold |
2236 | struct ev_loop * ecb_cold |
3572 | struct ev_loop * |
2237 | #else |
3573 | #else |
2238 | int |
3574 | int |
2239 | #endif |
3575 | #endif |
2240 | ev_default_loop (unsigned int flags) |
3576 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2241 | { |
3577 | { |
2242 | if (!ev_default_loop_ptr) |
3578 | if (!ev_default_loop_ptr) |
2243 | { |
3579 | { |
2244 | #if EV_MULTIPLICITY |
3580 | #if EV_MULTIPLICITY |
2245 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3581 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2264 | |
3600 | |
2265 | return ev_default_loop_ptr; |
3601 | return ev_default_loop_ptr; |
2266 | } |
3602 | } |
2267 | |
3603 | |
2268 | void |
3604 | void |
2269 | ev_loop_fork (EV_P) |
3605 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2270 | { |
3606 | { |
2271 | postfork = 1; /* must be in line with ev_default_fork */ |
3607 | postfork = 1; |
2272 | } |
3608 | } |
2273 | |
3609 | |
2274 | /*****************************************************************************/ |
3610 | /*****************************************************************************/ |
2275 | |
3611 | |
2276 | void |
3612 | void |
… | |
… | |
2278 | { |
3614 | { |
2279 | EV_CB_INVOKE ((W)w, revents); |
3615 | EV_CB_INVOKE ((W)w, revents); |
2280 | } |
3616 | } |
2281 | |
3617 | |
2282 | unsigned int |
3618 | unsigned int |
2283 | ev_pending_count (EV_P) |
3619 | ev_pending_count (EV_P) EV_NOEXCEPT |
2284 | { |
3620 | { |
2285 | int pri; |
3621 | int pri; |
2286 | unsigned int count = 0; |
3622 | unsigned int count = 0; |
2287 | |
3623 | |
2288 | for (pri = NUMPRI; pri--; ) |
3624 | for (pri = NUMPRI; pri--; ) |
2289 | count += pendingcnt [pri]; |
3625 | count += pendingcnt [pri]; |
2290 | |
3626 | |
2291 | return count; |
3627 | return count; |
2292 | } |
3628 | } |
2293 | |
3629 | |
2294 | void noinline |
3630 | ecb_noinline |
|
|
3631 | void |
2295 | ev_invoke_pending (EV_P) |
3632 | ev_invoke_pending (EV_P) |
2296 | { |
3633 | { |
2297 | int pri; |
3634 | pendingpri = NUMPRI; |
2298 | |
3635 | |
2299 | for (pri = NUMPRI; pri--; ) |
3636 | do |
|
|
3637 | { |
|
|
3638 | --pendingpri; |
|
|
3639 | |
|
|
3640 | /* pendingpri possibly gets modified in the inner loop */ |
2300 | while (pendingcnt [pri]) |
3641 | while (pendingcnt [pendingpri]) |
2301 | { |
3642 | { |
2302 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3643 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2303 | |
3644 | |
2304 | p->w->pending = 0; |
3645 | p->w->pending = 0; |
2305 | EV_CB_INVOKE (p->w, p->events); |
3646 | EV_CB_INVOKE (p->w, p->events); |
2306 | EV_FREQUENT_CHECK; |
3647 | EV_FREQUENT_CHECK; |
2307 | } |
3648 | } |
|
|
3649 | } |
|
|
3650 | while (pendingpri); |
2308 | } |
3651 | } |
2309 | |
3652 | |
2310 | #if EV_IDLE_ENABLE |
3653 | #if EV_IDLE_ENABLE |
2311 | /* make idle watchers pending. this handles the "call-idle */ |
3654 | /* make idle watchers pending. this handles the "call-idle */ |
2312 | /* only when higher priorities are idle" logic */ |
3655 | /* only when higher priorities are idle" logic */ |
2313 | inline_size void |
3656 | inline_size void |
2314 | idle_reify (EV_P) |
3657 | idle_reify (EV_P) |
2315 | { |
3658 | { |
2316 | if (expect_false (idleall)) |
3659 | if (ecb_expect_false (idleall)) |
2317 | { |
3660 | { |
2318 | int pri; |
3661 | int pri; |
2319 | |
3662 | |
2320 | for (pri = NUMPRI; pri--; ) |
3663 | for (pri = NUMPRI; pri--; ) |
2321 | { |
3664 | { |
… | |
… | |
2351 | { |
3694 | { |
2352 | ev_at (w) += w->repeat; |
3695 | ev_at (w) += w->repeat; |
2353 | if (ev_at (w) < mn_now) |
3696 | if (ev_at (w) < mn_now) |
2354 | ev_at (w) = mn_now; |
3697 | ev_at (w) = mn_now; |
2355 | |
3698 | |
2356 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3699 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
2357 | |
3700 | |
2358 | ANHE_at_cache (timers [HEAP0]); |
3701 | ANHE_at_cache (timers [HEAP0]); |
2359 | downheap (timers, timercnt, HEAP0); |
3702 | downheap (timers, timercnt, HEAP0); |
2360 | } |
3703 | } |
2361 | else |
3704 | else |
… | |
… | |
2370 | } |
3713 | } |
2371 | } |
3714 | } |
2372 | |
3715 | |
2373 | #if EV_PERIODIC_ENABLE |
3716 | #if EV_PERIODIC_ENABLE |
2374 | |
3717 | |
2375 | static void noinline |
3718 | ecb_noinline |
|
|
3719 | static void |
2376 | periodic_recalc (EV_P_ ev_periodic *w) |
3720 | periodic_recalc (EV_P_ ev_periodic *w) |
2377 | { |
3721 | { |
2378 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3722 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2379 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3723 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2380 | |
3724 | |
… | |
… | |
2382 | while (at <= ev_rt_now) |
3726 | while (at <= ev_rt_now) |
2383 | { |
3727 | { |
2384 | ev_tstamp nat = at + w->interval; |
3728 | ev_tstamp nat = at + w->interval; |
2385 | |
3729 | |
2386 | /* when resolution fails us, we use ev_rt_now */ |
3730 | /* when resolution fails us, we use ev_rt_now */ |
2387 | if (expect_false (nat == at)) |
3731 | if (ecb_expect_false (nat == at)) |
2388 | { |
3732 | { |
2389 | at = ev_rt_now; |
3733 | at = ev_rt_now; |
2390 | break; |
3734 | break; |
2391 | } |
3735 | } |
2392 | |
3736 | |
… | |
… | |
2402 | { |
3746 | { |
2403 | EV_FREQUENT_CHECK; |
3747 | EV_FREQUENT_CHECK; |
2404 | |
3748 | |
2405 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3749 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2406 | { |
3750 | { |
2407 | int feed_count = 0; |
|
|
2408 | |
|
|
2409 | do |
3751 | do |
2410 | { |
3752 | { |
2411 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3753 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2412 | |
3754 | |
2413 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3755 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2440 | } |
3782 | } |
2441 | } |
3783 | } |
2442 | |
3784 | |
2443 | /* simply recalculate all periodics */ |
3785 | /* simply recalculate all periodics */ |
2444 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3786 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2445 | static void noinline ecb_cold |
3787 | ecb_noinline ecb_cold |
|
|
3788 | static void |
2446 | periodics_reschedule (EV_P) |
3789 | periodics_reschedule (EV_P) |
2447 | { |
3790 | { |
2448 | int i; |
3791 | int i; |
2449 | |
3792 | |
2450 | /* adjust periodics after time jump */ |
3793 | /* adjust periodics after time jump */ |
… | |
… | |
2463 | reheap (periodics, periodiccnt); |
3806 | reheap (periodics, periodiccnt); |
2464 | } |
3807 | } |
2465 | #endif |
3808 | #endif |
2466 | |
3809 | |
2467 | /* adjust all timers by a given offset */ |
3810 | /* adjust all timers by a given offset */ |
2468 | static void noinline ecb_cold |
3811 | ecb_noinline ecb_cold |
|
|
3812 | static void |
2469 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3813 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2470 | { |
3814 | { |
2471 | int i; |
3815 | int i; |
2472 | |
3816 | |
2473 | for (i = 0; i < timercnt; ++i) |
3817 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2482 | /* also detect if there was a timejump, and act accordingly */ |
3826 | /* also detect if there was a timejump, and act accordingly */ |
2483 | inline_speed void |
3827 | inline_speed void |
2484 | time_update (EV_P_ ev_tstamp max_block) |
3828 | time_update (EV_P_ ev_tstamp max_block) |
2485 | { |
3829 | { |
2486 | #if EV_USE_MONOTONIC |
3830 | #if EV_USE_MONOTONIC |
2487 | if (expect_true (have_monotonic)) |
3831 | if (ecb_expect_true (have_monotonic)) |
2488 | { |
3832 | { |
2489 | int i; |
3833 | int i; |
2490 | ev_tstamp odiff = rtmn_diff; |
3834 | ev_tstamp odiff = rtmn_diff; |
2491 | |
3835 | |
2492 | mn_now = get_clock (); |
3836 | mn_now = get_clock (); |
2493 | |
3837 | |
2494 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3838 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2495 | /* interpolate in the meantime */ |
3839 | /* interpolate in the meantime */ |
2496 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3840 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
2497 | { |
3841 | { |
2498 | ev_rt_now = rtmn_diff + mn_now; |
3842 | ev_rt_now = rtmn_diff + mn_now; |
2499 | return; |
3843 | return; |
2500 | } |
3844 | } |
2501 | |
3845 | |
… | |
… | |
2515 | ev_tstamp diff; |
3859 | ev_tstamp diff; |
2516 | rtmn_diff = ev_rt_now - mn_now; |
3860 | rtmn_diff = ev_rt_now - mn_now; |
2517 | |
3861 | |
2518 | diff = odiff - rtmn_diff; |
3862 | diff = odiff - rtmn_diff; |
2519 | |
3863 | |
2520 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3864 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
2521 | return; /* all is well */ |
3865 | return; /* all is well */ |
2522 | |
3866 | |
2523 | ev_rt_now = ev_time (); |
3867 | ev_rt_now = ev_time (); |
2524 | mn_now = get_clock (); |
3868 | mn_now = get_clock (); |
2525 | now_floor = mn_now; |
3869 | now_floor = mn_now; |
… | |
… | |
2534 | else |
3878 | else |
2535 | #endif |
3879 | #endif |
2536 | { |
3880 | { |
2537 | ev_rt_now = ev_time (); |
3881 | ev_rt_now = ev_time (); |
2538 | |
3882 | |
2539 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3883 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
2540 | { |
3884 | { |
2541 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3885 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2542 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3886 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2543 | #if EV_PERIODIC_ENABLE |
3887 | #if EV_PERIODIC_ENABLE |
2544 | periodics_reschedule (EV_A); |
3888 | periodics_reschedule (EV_A); |
… | |
… | |
2547 | |
3891 | |
2548 | mn_now = ev_rt_now; |
3892 | mn_now = ev_rt_now; |
2549 | } |
3893 | } |
2550 | } |
3894 | } |
2551 | |
3895 | |
2552 | void |
3896 | int |
2553 | ev_run (EV_P_ int flags) |
3897 | ev_run (EV_P_ int flags) |
2554 | { |
3898 | { |
2555 | #if EV_FEATURE_API |
3899 | #if EV_FEATURE_API |
2556 | ++loop_depth; |
3900 | ++loop_depth; |
2557 | #endif |
3901 | #endif |
… | |
… | |
2567 | #if EV_VERIFY >= 2 |
3911 | #if EV_VERIFY >= 2 |
2568 | ev_verify (EV_A); |
3912 | ev_verify (EV_A); |
2569 | #endif |
3913 | #endif |
2570 | |
3914 | |
2571 | #ifndef _WIN32 |
3915 | #ifndef _WIN32 |
2572 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3916 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2573 | if (expect_false (getpid () != curpid)) |
3917 | if (ecb_expect_false (getpid () != curpid)) |
2574 | { |
3918 | { |
2575 | curpid = getpid (); |
3919 | curpid = getpid (); |
2576 | postfork = 1; |
3920 | postfork = 1; |
2577 | } |
3921 | } |
2578 | #endif |
3922 | #endif |
2579 | |
3923 | |
2580 | #if EV_FORK_ENABLE |
3924 | #if EV_FORK_ENABLE |
2581 | /* we might have forked, so queue fork handlers */ |
3925 | /* we might have forked, so queue fork handlers */ |
2582 | if (expect_false (postfork)) |
3926 | if (ecb_expect_false (postfork)) |
2583 | if (forkcnt) |
3927 | if (forkcnt) |
2584 | { |
3928 | { |
2585 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3929 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2586 | EV_INVOKE_PENDING; |
3930 | EV_INVOKE_PENDING; |
2587 | } |
3931 | } |
2588 | #endif |
3932 | #endif |
2589 | |
3933 | |
2590 | #if EV_PREPARE_ENABLE |
3934 | #if EV_PREPARE_ENABLE |
2591 | /* queue prepare watchers (and execute them) */ |
3935 | /* queue prepare watchers (and execute them) */ |
2592 | if (expect_false (preparecnt)) |
3936 | if (ecb_expect_false (preparecnt)) |
2593 | { |
3937 | { |
2594 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3938 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2595 | EV_INVOKE_PENDING; |
3939 | EV_INVOKE_PENDING; |
2596 | } |
3940 | } |
2597 | #endif |
3941 | #endif |
2598 | |
3942 | |
2599 | if (expect_false (loop_done)) |
3943 | if (ecb_expect_false (loop_done)) |
2600 | break; |
3944 | break; |
2601 | |
3945 | |
2602 | /* we might have forked, so reify kernel state if necessary */ |
3946 | /* we might have forked, so reify kernel state if necessary */ |
2603 | if (expect_false (postfork)) |
3947 | if (ecb_expect_false (postfork)) |
2604 | loop_fork (EV_A); |
3948 | loop_fork (EV_A); |
2605 | |
3949 | |
2606 | /* update fd-related kernel structures */ |
3950 | /* update fd-related kernel structures */ |
2607 | fd_reify (EV_A); |
3951 | fd_reify (EV_A); |
2608 | |
3952 | |
… | |
… | |
2613 | |
3957 | |
2614 | /* remember old timestamp for io_blocktime calculation */ |
3958 | /* remember old timestamp for io_blocktime calculation */ |
2615 | ev_tstamp prev_mn_now = mn_now; |
3959 | ev_tstamp prev_mn_now = mn_now; |
2616 | |
3960 | |
2617 | /* update time to cancel out callback processing overhead */ |
3961 | /* update time to cancel out callback processing overhead */ |
2618 | time_update (EV_A_ 1e100); |
3962 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
2619 | |
3963 | |
2620 | /* from now on, we want a pipe-wake-up */ |
3964 | /* from now on, we want a pipe-wake-up */ |
2621 | pipe_write_wanted = 1; |
3965 | pipe_write_wanted = 1; |
2622 | |
3966 | |
2623 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3967 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
2624 | |
3968 | |
2625 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3969 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2626 | { |
3970 | { |
2627 | waittime = MAX_BLOCKTIME; |
3971 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
2628 | |
3972 | |
2629 | if (timercnt) |
3973 | if (timercnt) |
2630 | { |
3974 | { |
2631 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3975 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2632 | if (waittime > to) waittime = to; |
3976 | if (waittime > to) waittime = to; |
… | |
… | |
2639 | if (waittime > to) waittime = to; |
3983 | if (waittime > to) waittime = to; |
2640 | } |
3984 | } |
2641 | #endif |
3985 | #endif |
2642 | |
3986 | |
2643 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3987 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2644 | if (expect_false (waittime < timeout_blocktime)) |
3988 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2645 | waittime = timeout_blocktime; |
3989 | waittime = timeout_blocktime; |
2646 | |
3990 | |
2647 | /* at this point, we NEED to wait, so we have to ensure */ |
3991 | /* now there are two more special cases left, either we have |
2648 | /* to pass a minimum nonzero value to the backend */ |
3992 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3993 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3994 | * amount of time for some event loop backends. |
|
|
3995 | */ |
2649 | if (expect_false (waittime < backend_mintime)) |
3996 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3997 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3998 | ? EV_TS_CONST (0.) |
2650 | waittime = backend_mintime; |
3999 | : backend_mintime; |
2651 | |
4000 | |
2652 | /* extra check because io_blocktime is commonly 0 */ |
4001 | /* extra check because io_blocktime is commonly 0 */ |
2653 | if (expect_false (io_blocktime)) |
4002 | if (ecb_expect_false (io_blocktime)) |
2654 | { |
4003 | { |
2655 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4004 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2656 | |
4005 | |
2657 | if (sleeptime > waittime - backend_mintime) |
4006 | if (sleeptime > waittime - backend_mintime) |
2658 | sleeptime = waittime - backend_mintime; |
4007 | sleeptime = waittime - backend_mintime; |
2659 | |
4008 | |
2660 | if (expect_true (sleeptime > 0.)) |
4009 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
2661 | { |
4010 | { |
2662 | ev_sleep (sleeptime); |
4011 | ev_sleep (sleeptime); |
2663 | waittime -= sleeptime; |
4012 | waittime -= sleeptime; |
2664 | } |
4013 | } |
2665 | } |
4014 | } |
… | |
… | |
2670 | #endif |
4019 | #endif |
2671 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
4020 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2672 | backend_poll (EV_A_ waittime); |
4021 | backend_poll (EV_A_ waittime); |
2673 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
4022 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2674 | |
4023 | |
2675 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
4024 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
2676 | |
4025 | |
|
|
4026 | ECB_MEMORY_FENCE_ACQUIRE; |
2677 | if (pipe_write_skipped) |
4027 | if (pipe_write_skipped) |
2678 | { |
4028 | { |
2679 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4029 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
2680 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4030 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2681 | } |
4031 | } |
2682 | |
4032 | |
2683 | |
|
|
2684 | /* update ev_rt_now, do magic */ |
4033 | /* update ev_rt_now, do magic */ |
2685 | time_update (EV_A_ waittime + sleeptime); |
4034 | time_update (EV_A_ waittime + sleeptime); |
2686 | } |
4035 | } |
2687 | |
4036 | |
2688 | /* queue pending timers and reschedule them */ |
4037 | /* queue pending timers and reschedule them */ |
… | |
… | |
2696 | idle_reify (EV_A); |
4045 | idle_reify (EV_A); |
2697 | #endif |
4046 | #endif |
2698 | |
4047 | |
2699 | #if EV_CHECK_ENABLE |
4048 | #if EV_CHECK_ENABLE |
2700 | /* queue check watchers, to be executed first */ |
4049 | /* queue check watchers, to be executed first */ |
2701 | if (expect_false (checkcnt)) |
4050 | if (ecb_expect_false (checkcnt)) |
2702 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4051 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2703 | #endif |
4052 | #endif |
2704 | |
4053 | |
2705 | EV_INVOKE_PENDING; |
4054 | EV_INVOKE_PENDING; |
2706 | } |
4055 | } |
2707 | while (expect_true ( |
4056 | while (ecb_expect_true ( |
2708 | activecnt |
4057 | activecnt |
2709 | && !loop_done |
4058 | && !loop_done |
2710 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4059 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2711 | )); |
4060 | )); |
2712 | |
4061 | |
… | |
… | |
2714 | loop_done = EVBREAK_CANCEL; |
4063 | loop_done = EVBREAK_CANCEL; |
2715 | |
4064 | |
2716 | #if EV_FEATURE_API |
4065 | #if EV_FEATURE_API |
2717 | --loop_depth; |
4066 | --loop_depth; |
2718 | #endif |
4067 | #endif |
2719 | } |
|
|
2720 | |
4068 | |
|
|
4069 | return activecnt; |
|
|
4070 | } |
|
|
4071 | |
2721 | void |
4072 | void |
2722 | ev_break (EV_P_ int how) |
4073 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2723 | { |
4074 | { |
2724 | loop_done = how; |
4075 | loop_done = how; |
2725 | } |
4076 | } |
2726 | |
4077 | |
2727 | void |
4078 | void |
2728 | ev_ref (EV_P) |
4079 | ev_ref (EV_P) EV_NOEXCEPT |
2729 | { |
4080 | { |
2730 | ++activecnt; |
4081 | ++activecnt; |
2731 | } |
4082 | } |
2732 | |
4083 | |
2733 | void |
4084 | void |
2734 | ev_unref (EV_P) |
4085 | ev_unref (EV_P) EV_NOEXCEPT |
2735 | { |
4086 | { |
2736 | --activecnt; |
4087 | --activecnt; |
2737 | } |
4088 | } |
2738 | |
4089 | |
2739 | void |
4090 | void |
2740 | ev_now_update (EV_P) |
4091 | ev_now_update (EV_P) EV_NOEXCEPT |
2741 | { |
4092 | { |
2742 | time_update (EV_A_ 1e100); |
4093 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2743 | } |
4094 | } |
2744 | |
4095 | |
2745 | void |
4096 | void |
2746 | ev_suspend (EV_P) |
4097 | ev_suspend (EV_P) EV_NOEXCEPT |
2747 | { |
4098 | { |
2748 | ev_now_update (EV_A); |
4099 | ev_now_update (EV_A); |
2749 | } |
4100 | } |
2750 | |
4101 | |
2751 | void |
4102 | void |
2752 | ev_resume (EV_P) |
4103 | ev_resume (EV_P) EV_NOEXCEPT |
2753 | { |
4104 | { |
2754 | ev_tstamp mn_prev = mn_now; |
4105 | ev_tstamp mn_prev = mn_now; |
2755 | |
4106 | |
2756 | ev_now_update (EV_A); |
4107 | ev_now_update (EV_A); |
2757 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4108 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2774 | inline_size void |
4125 | inline_size void |
2775 | wlist_del (WL *head, WL elem) |
4126 | wlist_del (WL *head, WL elem) |
2776 | { |
4127 | { |
2777 | while (*head) |
4128 | while (*head) |
2778 | { |
4129 | { |
2779 | if (expect_true (*head == elem)) |
4130 | if (ecb_expect_true (*head == elem)) |
2780 | { |
4131 | { |
2781 | *head = elem->next; |
4132 | *head = elem->next; |
2782 | break; |
4133 | break; |
2783 | } |
4134 | } |
2784 | |
4135 | |
… | |
… | |
2796 | w->pending = 0; |
4147 | w->pending = 0; |
2797 | } |
4148 | } |
2798 | } |
4149 | } |
2799 | |
4150 | |
2800 | int |
4151 | int |
2801 | ev_clear_pending (EV_P_ void *w) |
4152 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2802 | { |
4153 | { |
2803 | W w_ = (W)w; |
4154 | W w_ = (W)w; |
2804 | int pending = w_->pending; |
4155 | int pending = w_->pending; |
2805 | |
4156 | |
2806 | if (expect_true (pending)) |
4157 | if (ecb_expect_true (pending)) |
2807 | { |
4158 | { |
2808 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4159 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2809 | p->w = (W)&pending_w; |
4160 | p->w = (W)&pending_w; |
2810 | w_->pending = 0; |
4161 | w_->pending = 0; |
2811 | return p->events; |
4162 | return p->events; |
… | |
… | |
2838 | w->active = 0; |
4189 | w->active = 0; |
2839 | } |
4190 | } |
2840 | |
4191 | |
2841 | /*****************************************************************************/ |
4192 | /*****************************************************************************/ |
2842 | |
4193 | |
2843 | void noinline |
4194 | ecb_noinline |
|
|
4195 | void |
2844 | ev_io_start (EV_P_ ev_io *w) |
4196 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2845 | { |
4197 | { |
2846 | int fd = w->fd; |
4198 | int fd = w->fd; |
2847 | |
4199 | |
2848 | if (expect_false (ev_is_active (w))) |
4200 | if (ecb_expect_false (ev_is_active (w))) |
2849 | return; |
4201 | return; |
2850 | |
4202 | |
2851 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4203 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2852 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4204 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2853 | |
4205 | |
|
|
4206 | #if EV_VERIFY >= 2 |
|
|
4207 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4208 | #endif |
2854 | EV_FREQUENT_CHECK; |
4209 | EV_FREQUENT_CHECK; |
2855 | |
4210 | |
2856 | ev_start (EV_A_ (W)w, 1); |
4211 | ev_start (EV_A_ (W)w, 1); |
2857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4212 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2858 | wlist_add (&anfds[fd].head, (WL)w); |
4213 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
4214 | |
|
|
4215 | /* common bug, apparently */ |
|
|
4216 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
2859 | |
4217 | |
2860 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
4218 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2861 | w->events &= ~EV__IOFDSET; |
4219 | w->events &= ~EV__IOFDSET; |
2862 | |
4220 | |
2863 | EV_FREQUENT_CHECK; |
4221 | EV_FREQUENT_CHECK; |
2864 | } |
4222 | } |
2865 | |
4223 | |
2866 | void noinline |
4224 | ecb_noinline |
|
|
4225 | void |
2867 | ev_io_stop (EV_P_ ev_io *w) |
4226 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2868 | { |
4227 | { |
2869 | clear_pending (EV_A_ (W)w); |
4228 | clear_pending (EV_A_ (W)w); |
2870 | if (expect_false (!ev_is_active (w))) |
4229 | if (ecb_expect_false (!ev_is_active (w))) |
2871 | return; |
4230 | return; |
2872 | |
4231 | |
2873 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4232 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2874 | |
4233 | |
|
|
4234 | #if EV_VERIFY >= 2 |
|
|
4235 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4236 | #endif |
2875 | EV_FREQUENT_CHECK; |
4237 | EV_FREQUENT_CHECK; |
2876 | |
4238 | |
2877 | wlist_del (&anfds[w->fd].head, (WL)w); |
4239 | wlist_del (&anfds[w->fd].head, (WL)w); |
2878 | ev_stop (EV_A_ (W)w); |
4240 | ev_stop (EV_A_ (W)w); |
2879 | |
4241 | |
2880 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4242 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2881 | |
4243 | |
2882 | EV_FREQUENT_CHECK; |
4244 | EV_FREQUENT_CHECK; |
2883 | } |
4245 | } |
2884 | |
4246 | |
2885 | void noinline |
4247 | ecb_noinline |
|
|
4248 | void |
2886 | ev_timer_start (EV_P_ ev_timer *w) |
4249 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2887 | { |
4250 | { |
2888 | if (expect_false (ev_is_active (w))) |
4251 | if (ecb_expect_false (ev_is_active (w))) |
2889 | return; |
4252 | return; |
2890 | |
4253 | |
2891 | ev_at (w) += mn_now; |
4254 | ev_at (w) += mn_now; |
2892 | |
4255 | |
2893 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4256 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2894 | |
4257 | |
2895 | EV_FREQUENT_CHECK; |
4258 | EV_FREQUENT_CHECK; |
2896 | |
4259 | |
2897 | ++timercnt; |
4260 | ++timercnt; |
2898 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4261 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2899 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4262 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2900 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4263 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2901 | ANHE_at_cache (timers [ev_active (w)]); |
4264 | ANHE_at_cache (timers [ev_active (w)]); |
2902 | upheap (timers, ev_active (w)); |
4265 | upheap (timers, ev_active (w)); |
2903 | |
4266 | |
2904 | EV_FREQUENT_CHECK; |
4267 | EV_FREQUENT_CHECK; |
2905 | |
4268 | |
2906 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4269 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2907 | } |
4270 | } |
2908 | |
4271 | |
2909 | void noinline |
4272 | ecb_noinline |
|
|
4273 | void |
2910 | ev_timer_stop (EV_P_ ev_timer *w) |
4274 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2911 | { |
4275 | { |
2912 | clear_pending (EV_A_ (W)w); |
4276 | clear_pending (EV_A_ (W)w); |
2913 | if (expect_false (!ev_is_active (w))) |
4277 | if (ecb_expect_false (!ev_is_active (w))) |
2914 | return; |
4278 | return; |
2915 | |
4279 | |
2916 | EV_FREQUENT_CHECK; |
4280 | EV_FREQUENT_CHECK; |
2917 | |
4281 | |
2918 | { |
4282 | { |
… | |
… | |
2920 | |
4284 | |
2921 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4285 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2922 | |
4286 | |
2923 | --timercnt; |
4287 | --timercnt; |
2924 | |
4288 | |
2925 | if (expect_true (active < timercnt + HEAP0)) |
4289 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2926 | { |
4290 | { |
2927 | timers [active] = timers [timercnt + HEAP0]; |
4291 | timers [active] = timers [timercnt + HEAP0]; |
2928 | adjustheap (timers, timercnt, active); |
4292 | adjustheap (timers, timercnt, active); |
2929 | } |
4293 | } |
2930 | } |
4294 | } |
… | |
… | |
2934 | ev_stop (EV_A_ (W)w); |
4298 | ev_stop (EV_A_ (W)w); |
2935 | |
4299 | |
2936 | EV_FREQUENT_CHECK; |
4300 | EV_FREQUENT_CHECK; |
2937 | } |
4301 | } |
2938 | |
4302 | |
2939 | void noinline |
4303 | ecb_noinline |
|
|
4304 | void |
2940 | ev_timer_again (EV_P_ ev_timer *w) |
4305 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2941 | { |
4306 | { |
2942 | EV_FREQUENT_CHECK; |
4307 | EV_FREQUENT_CHECK; |
|
|
4308 | |
|
|
4309 | clear_pending (EV_A_ (W)w); |
2943 | |
4310 | |
2944 | if (ev_is_active (w)) |
4311 | if (ev_is_active (w)) |
2945 | { |
4312 | { |
2946 | if (w->repeat) |
4313 | if (w->repeat) |
2947 | { |
4314 | { |
… | |
… | |
2960 | |
4327 | |
2961 | EV_FREQUENT_CHECK; |
4328 | EV_FREQUENT_CHECK; |
2962 | } |
4329 | } |
2963 | |
4330 | |
2964 | ev_tstamp |
4331 | ev_tstamp |
2965 | ev_timer_remaining (EV_P_ ev_timer *w) |
4332 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
2966 | { |
4333 | { |
2967 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4334 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2968 | } |
4335 | } |
2969 | |
4336 | |
2970 | #if EV_PERIODIC_ENABLE |
4337 | #if EV_PERIODIC_ENABLE |
2971 | void noinline |
4338 | ecb_noinline |
|
|
4339 | void |
2972 | ev_periodic_start (EV_P_ ev_periodic *w) |
4340 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2973 | { |
4341 | { |
2974 | if (expect_false (ev_is_active (w))) |
4342 | if (ecb_expect_false (ev_is_active (w))) |
2975 | return; |
4343 | return; |
|
|
4344 | |
|
|
4345 | #if EV_USE_TIMERFD |
|
|
4346 | if (timerfd == -2) |
|
|
4347 | evtimerfd_init (EV_A); |
|
|
4348 | #endif |
2976 | |
4349 | |
2977 | if (w->reschedule_cb) |
4350 | if (w->reschedule_cb) |
2978 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4351 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2979 | else if (w->interval) |
4352 | else if (w->interval) |
2980 | { |
4353 | { |
… | |
… | |
2986 | |
4359 | |
2987 | EV_FREQUENT_CHECK; |
4360 | EV_FREQUENT_CHECK; |
2988 | |
4361 | |
2989 | ++periodiccnt; |
4362 | ++periodiccnt; |
2990 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4363 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2991 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4364 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2992 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4365 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2993 | ANHE_at_cache (periodics [ev_active (w)]); |
4366 | ANHE_at_cache (periodics [ev_active (w)]); |
2994 | upheap (periodics, ev_active (w)); |
4367 | upheap (periodics, ev_active (w)); |
2995 | |
4368 | |
2996 | EV_FREQUENT_CHECK; |
4369 | EV_FREQUENT_CHECK; |
2997 | |
4370 | |
2998 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4371 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2999 | } |
4372 | } |
3000 | |
4373 | |
3001 | void noinline |
4374 | ecb_noinline |
|
|
4375 | void |
3002 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4376 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3003 | { |
4377 | { |
3004 | clear_pending (EV_A_ (W)w); |
4378 | clear_pending (EV_A_ (W)w); |
3005 | if (expect_false (!ev_is_active (w))) |
4379 | if (ecb_expect_false (!ev_is_active (w))) |
3006 | return; |
4380 | return; |
3007 | |
4381 | |
3008 | EV_FREQUENT_CHECK; |
4382 | EV_FREQUENT_CHECK; |
3009 | |
4383 | |
3010 | { |
4384 | { |
… | |
… | |
3012 | |
4386 | |
3013 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4387 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3014 | |
4388 | |
3015 | --periodiccnt; |
4389 | --periodiccnt; |
3016 | |
4390 | |
3017 | if (expect_true (active < periodiccnt + HEAP0)) |
4391 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3018 | { |
4392 | { |
3019 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4393 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3020 | adjustheap (periodics, periodiccnt, active); |
4394 | adjustheap (periodics, periodiccnt, active); |
3021 | } |
4395 | } |
3022 | } |
4396 | } |
… | |
… | |
3024 | ev_stop (EV_A_ (W)w); |
4398 | ev_stop (EV_A_ (W)w); |
3025 | |
4399 | |
3026 | EV_FREQUENT_CHECK; |
4400 | EV_FREQUENT_CHECK; |
3027 | } |
4401 | } |
3028 | |
4402 | |
3029 | void noinline |
4403 | ecb_noinline |
|
|
4404 | void |
3030 | ev_periodic_again (EV_P_ ev_periodic *w) |
4405 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3031 | { |
4406 | { |
3032 | /* TODO: use adjustheap and recalculation */ |
4407 | /* TODO: use adjustheap and recalculation */ |
3033 | ev_periodic_stop (EV_A_ w); |
4408 | ev_periodic_stop (EV_A_ w); |
3034 | ev_periodic_start (EV_A_ w); |
4409 | ev_periodic_start (EV_A_ w); |
3035 | } |
4410 | } |
… | |
… | |
3039 | # define SA_RESTART 0 |
4414 | # define SA_RESTART 0 |
3040 | #endif |
4415 | #endif |
3041 | |
4416 | |
3042 | #if EV_SIGNAL_ENABLE |
4417 | #if EV_SIGNAL_ENABLE |
3043 | |
4418 | |
3044 | void noinline |
4419 | ecb_noinline |
|
|
4420 | void |
3045 | ev_signal_start (EV_P_ ev_signal *w) |
4421 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3046 | { |
4422 | { |
3047 | if (expect_false (ev_is_active (w))) |
4423 | if (ecb_expect_false (ev_is_active (w))) |
3048 | return; |
4424 | return; |
3049 | |
4425 | |
3050 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3051 | |
4427 | |
3052 | #if EV_MULTIPLICITY |
4428 | #if EV_MULTIPLICITY |
3053 | assert (("libev: a signal must not be attached to two different loops", |
4429 | assert (("libev: a signal must not be attached to two different loops", |
3054 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4430 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3055 | |
4431 | |
3056 | signals [w->signum - 1].loop = EV_A; |
4432 | signals [w->signum - 1].loop = EV_A; |
|
|
4433 | ECB_MEMORY_FENCE_RELEASE; |
3057 | #endif |
4434 | #endif |
3058 | |
4435 | |
3059 | EV_FREQUENT_CHECK; |
4436 | EV_FREQUENT_CHECK; |
3060 | |
4437 | |
3061 | #if EV_USE_SIGNALFD |
4438 | #if EV_USE_SIGNALFD |
… | |
… | |
3120 | } |
4497 | } |
3121 | |
4498 | |
3122 | EV_FREQUENT_CHECK; |
4499 | EV_FREQUENT_CHECK; |
3123 | } |
4500 | } |
3124 | |
4501 | |
3125 | void noinline |
4502 | ecb_noinline |
|
|
4503 | void |
3126 | ev_signal_stop (EV_P_ ev_signal *w) |
4504 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3127 | { |
4505 | { |
3128 | clear_pending (EV_A_ (W)w); |
4506 | clear_pending (EV_A_ (W)w); |
3129 | if (expect_false (!ev_is_active (w))) |
4507 | if (ecb_expect_false (!ev_is_active (w))) |
3130 | return; |
4508 | return; |
3131 | |
4509 | |
3132 | EV_FREQUENT_CHECK; |
4510 | EV_FREQUENT_CHECK; |
3133 | |
4511 | |
3134 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4512 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3162 | #endif |
4540 | #endif |
3163 | |
4541 | |
3164 | #if EV_CHILD_ENABLE |
4542 | #if EV_CHILD_ENABLE |
3165 | |
4543 | |
3166 | void |
4544 | void |
3167 | ev_child_start (EV_P_ ev_child *w) |
4545 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3168 | { |
4546 | { |
3169 | #if EV_MULTIPLICITY |
4547 | #if EV_MULTIPLICITY |
3170 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4548 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3171 | #endif |
4549 | #endif |
3172 | if (expect_false (ev_is_active (w))) |
4550 | if (ecb_expect_false (ev_is_active (w))) |
3173 | return; |
4551 | return; |
3174 | |
4552 | |
3175 | EV_FREQUENT_CHECK; |
4553 | EV_FREQUENT_CHECK; |
3176 | |
4554 | |
3177 | ev_start (EV_A_ (W)w, 1); |
4555 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3179 | |
4557 | |
3180 | EV_FREQUENT_CHECK; |
4558 | EV_FREQUENT_CHECK; |
3181 | } |
4559 | } |
3182 | |
4560 | |
3183 | void |
4561 | void |
3184 | ev_child_stop (EV_P_ ev_child *w) |
4562 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3185 | { |
4563 | { |
3186 | clear_pending (EV_A_ (W)w); |
4564 | clear_pending (EV_A_ (W)w); |
3187 | if (expect_false (!ev_is_active (w))) |
4565 | if (ecb_expect_false (!ev_is_active (w))) |
3188 | return; |
4566 | return; |
3189 | |
4567 | |
3190 | EV_FREQUENT_CHECK; |
4568 | EV_FREQUENT_CHECK; |
3191 | |
4569 | |
3192 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4570 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3206 | |
4584 | |
3207 | #define DEF_STAT_INTERVAL 5.0074891 |
4585 | #define DEF_STAT_INTERVAL 5.0074891 |
3208 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4586 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3209 | #define MIN_STAT_INTERVAL 0.1074891 |
4587 | #define MIN_STAT_INTERVAL 0.1074891 |
3210 | |
4588 | |
3211 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4589 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3212 | |
4590 | |
3213 | #if EV_USE_INOTIFY |
4591 | #if EV_USE_INOTIFY |
3214 | |
4592 | |
3215 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4593 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3216 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4594 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3217 | |
4595 | |
3218 | static void noinline |
4596 | ecb_noinline |
|
|
4597 | static void |
3219 | infy_add (EV_P_ ev_stat *w) |
4598 | infy_add (EV_P_ ev_stat *w) |
3220 | { |
4599 | { |
3221 | 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); |
4600 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4601 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4602 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4603 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3222 | |
4604 | |
3223 | if (w->wd >= 0) |
4605 | if (w->wd >= 0) |
3224 | { |
4606 | { |
3225 | struct statfs sfs; |
4607 | struct statfs sfs; |
3226 | |
4608 | |
… | |
… | |
3230 | |
4612 | |
3231 | if (!fs_2625) |
4613 | if (!fs_2625) |
3232 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4614 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3233 | else if (!statfs (w->path, &sfs) |
4615 | else if (!statfs (w->path, &sfs) |
3234 | && (sfs.f_type == 0x1373 /* devfs */ |
4616 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4617 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4618 | || sfs.f_type == 0x4d44 /* msdos */ |
3235 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4619 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4620 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4621 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4622 | || sfs.f_type == 0x5346544e /* ntfs */ |
3236 | || sfs.f_type == 0x3153464a /* jfs */ |
4623 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4624 | || sfs.f_type == 0x9123683e /* btrfs */ |
3237 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4625 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3238 | || sfs.f_type == 0x01021994 /* tempfs */ |
4626 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3239 | || sfs.f_type == 0x58465342 /* xfs */)) |
4627 | || sfs.f_type == 0x58465342 /* xfs */)) |
3240 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4628 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3241 | else |
4629 | else |
3242 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4630 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3243 | } |
4631 | } |
… | |
… | |
3278 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4666 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3279 | ev_timer_again (EV_A_ &w->timer); |
4667 | ev_timer_again (EV_A_ &w->timer); |
3280 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4668 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3281 | } |
4669 | } |
3282 | |
4670 | |
3283 | static void noinline |
4671 | ecb_noinline |
|
|
4672 | static void |
3284 | infy_del (EV_P_ ev_stat *w) |
4673 | infy_del (EV_P_ ev_stat *w) |
3285 | { |
4674 | { |
3286 | int slot; |
4675 | int slot; |
3287 | int wd = w->wd; |
4676 | int wd = w->wd; |
3288 | |
4677 | |
… | |
… | |
3295 | |
4684 | |
3296 | /* remove this watcher, if others are watching it, they will rearm */ |
4685 | /* remove this watcher, if others are watching it, they will rearm */ |
3297 | inotify_rm_watch (fs_fd, wd); |
4686 | inotify_rm_watch (fs_fd, wd); |
3298 | } |
4687 | } |
3299 | |
4688 | |
3300 | static void noinline |
4689 | ecb_noinline |
|
|
4690 | static void |
3301 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4691 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3302 | { |
4692 | { |
3303 | if (slot < 0) |
4693 | if (slot < 0) |
3304 | /* overflow, need to check for all hash slots */ |
4694 | /* overflow, need to check for all hash slots */ |
3305 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4695 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3341 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4731 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3342 | ofs += sizeof (struct inotify_event) + ev->len; |
4732 | ofs += sizeof (struct inotify_event) + ev->len; |
3343 | } |
4733 | } |
3344 | } |
4734 | } |
3345 | |
4735 | |
3346 | inline_size void ecb_cold |
4736 | inline_size ecb_cold |
|
|
4737 | void |
3347 | ev_check_2625 (EV_P) |
4738 | ev_check_2625 (EV_P) |
3348 | { |
4739 | { |
3349 | /* kernels < 2.6.25 are borked |
4740 | /* kernels < 2.6.25 are borked |
3350 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4741 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3351 | */ |
4742 | */ |
… | |
… | |
3356 | } |
4747 | } |
3357 | |
4748 | |
3358 | inline_size int |
4749 | inline_size int |
3359 | infy_newfd (void) |
4750 | infy_newfd (void) |
3360 | { |
4751 | { |
3361 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4752 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3362 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4753 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3363 | if (fd >= 0) |
4754 | if (fd >= 0) |
3364 | return fd; |
4755 | return fd; |
3365 | #endif |
4756 | #endif |
3366 | return inotify_init (); |
4757 | return inotify_init (); |
… | |
… | |
3441 | #else |
4832 | #else |
3442 | # define EV_LSTAT(p,b) lstat (p, b) |
4833 | # define EV_LSTAT(p,b) lstat (p, b) |
3443 | #endif |
4834 | #endif |
3444 | |
4835 | |
3445 | void |
4836 | void |
3446 | ev_stat_stat (EV_P_ ev_stat *w) |
4837 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3447 | { |
4838 | { |
3448 | if (lstat (w->path, &w->attr) < 0) |
4839 | if (lstat (w->path, &w->attr) < 0) |
3449 | w->attr.st_nlink = 0; |
4840 | w->attr.st_nlink = 0; |
3450 | else if (!w->attr.st_nlink) |
4841 | else if (!w->attr.st_nlink) |
3451 | w->attr.st_nlink = 1; |
4842 | w->attr.st_nlink = 1; |
3452 | } |
4843 | } |
3453 | |
4844 | |
3454 | static void noinline |
4845 | ecb_noinline |
|
|
4846 | static void |
3455 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4847 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3456 | { |
4848 | { |
3457 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4849 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3458 | |
4850 | |
3459 | ev_statdata prev = w->attr; |
4851 | ev_statdata prev = w->attr; |
… | |
… | |
3490 | ev_feed_event (EV_A_ w, EV_STAT); |
4882 | ev_feed_event (EV_A_ w, EV_STAT); |
3491 | } |
4883 | } |
3492 | } |
4884 | } |
3493 | |
4885 | |
3494 | void |
4886 | void |
3495 | ev_stat_start (EV_P_ ev_stat *w) |
4887 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3496 | { |
4888 | { |
3497 | if (expect_false (ev_is_active (w))) |
4889 | if (ecb_expect_false (ev_is_active (w))) |
3498 | return; |
4890 | return; |
3499 | |
4891 | |
3500 | ev_stat_stat (EV_A_ w); |
4892 | ev_stat_stat (EV_A_ w); |
3501 | |
4893 | |
3502 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4894 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
3521 | |
4913 | |
3522 | EV_FREQUENT_CHECK; |
4914 | EV_FREQUENT_CHECK; |
3523 | } |
4915 | } |
3524 | |
4916 | |
3525 | void |
4917 | void |
3526 | ev_stat_stop (EV_P_ ev_stat *w) |
4918 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3527 | { |
4919 | { |
3528 | clear_pending (EV_A_ (W)w); |
4920 | clear_pending (EV_A_ (W)w); |
3529 | if (expect_false (!ev_is_active (w))) |
4921 | if (ecb_expect_false (!ev_is_active (w))) |
3530 | return; |
4922 | return; |
3531 | |
4923 | |
3532 | EV_FREQUENT_CHECK; |
4924 | EV_FREQUENT_CHECK; |
3533 | |
4925 | |
3534 | #if EV_USE_INOTIFY |
4926 | #if EV_USE_INOTIFY |
… | |
… | |
3547 | } |
4939 | } |
3548 | #endif |
4940 | #endif |
3549 | |
4941 | |
3550 | #if EV_IDLE_ENABLE |
4942 | #if EV_IDLE_ENABLE |
3551 | void |
4943 | void |
3552 | ev_idle_start (EV_P_ ev_idle *w) |
4944 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3553 | { |
4945 | { |
3554 | if (expect_false (ev_is_active (w))) |
4946 | if (ecb_expect_false (ev_is_active (w))) |
3555 | return; |
4947 | return; |
3556 | |
4948 | |
3557 | pri_adjust (EV_A_ (W)w); |
4949 | pri_adjust (EV_A_ (W)w); |
3558 | |
4950 | |
3559 | EV_FREQUENT_CHECK; |
4951 | EV_FREQUENT_CHECK; |
… | |
… | |
3562 | int active = ++idlecnt [ABSPRI (w)]; |
4954 | int active = ++idlecnt [ABSPRI (w)]; |
3563 | |
4955 | |
3564 | ++idleall; |
4956 | ++idleall; |
3565 | ev_start (EV_A_ (W)w, active); |
4957 | ev_start (EV_A_ (W)w, active); |
3566 | |
4958 | |
3567 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4959 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
3568 | idles [ABSPRI (w)][active - 1] = w; |
4960 | idles [ABSPRI (w)][active - 1] = w; |
3569 | } |
4961 | } |
3570 | |
4962 | |
3571 | EV_FREQUENT_CHECK; |
4963 | EV_FREQUENT_CHECK; |
3572 | } |
4964 | } |
3573 | |
4965 | |
3574 | void |
4966 | void |
3575 | ev_idle_stop (EV_P_ ev_idle *w) |
4967 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3576 | { |
4968 | { |
3577 | clear_pending (EV_A_ (W)w); |
4969 | clear_pending (EV_A_ (W)w); |
3578 | if (expect_false (!ev_is_active (w))) |
4970 | if (ecb_expect_false (!ev_is_active (w))) |
3579 | return; |
4971 | return; |
3580 | |
4972 | |
3581 | EV_FREQUENT_CHECK; |
4973 | EV_FREQUENT_CHECK; |
3582 | |
4974 | |
3583 | { |
4975 | { |
… | |
… | |
3594 | } |
4986 | } |
3595 | #endif |
4987 | #endif |
3596 | |
4988 | |
3597 | #if EV_PREPARE_ENABLE |
4989 | #if EV_PREPARE_ENABLE |
3598 | void |
4990 | void |
3599 | ev_prepare_start (EV_P_ ev_prepare *w) |
4991 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3600 | { |
4992 | { |
3601 | if (expect_false (ev_is_active (w))) |
4993 | if (ecb_expect_false (ev_is_active (w))) |
3602 | return; |
4994 | return; |
3603 | |
4995 | |
3604 | EV_FREQUENT_CHECK; |
4996 | EV_FREQUENT_CHECK; |
3605 | |
4997 | |
3606 | ev_start (EV_A_ (W)w, ++preparecnt); |
4998 | ev_start (EV_A_ (W)w, ++preparecnt); |
3607 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4999 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
3608 | prepares [preparecnt - 1] = w; |
5000 | prepares [preparecnt - 1] = w; |
3609 | |
5001 | |
3610 | EV_FREQUENT_CHECK; |
5002 | EV_FREQUENT_CHECK; |
3611 | } |
5003 | } |
3612 | |
5004 | |
3613 | void |
5005 | void |
3614 | ev_prepare_stop (EV_P_ ev_prepare *w) |
5006 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3615 | { |
5007 | { |
3616 | clear_pending (EV_A_ (W)w); |
5008 | clear_pending (EV_A_ (W)w); |
3617 | if (expect_false (!ev_is_active (w))) |
5009 | if (ecb_expect_false (!ev_is_active (w))) |
3618 | return; |
5010 | return; |
3619 | |
5011 | |
3620 | EV_FREQUENT_CHECK; |
5012 | EV_FREQUENT_CHECK; |
3621 | |
5013 | |
3622 | { |
5014 | { |
… | |
… | |
3632 | } |
5024 | } |
3633 | #endif |
5025 | #endif |
3634 | |
5026 | |
3635 | #if EV_CHECK_ENABLE |
5027 | #if EV_CHECK_ENABLE |
3636 | void |
5028 | void |
3637 | ev_check_start (EV_P_ ev_check *w) |
5029 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
3638 | { |
5030 | { |
3639 | if (expect_false (ev_is_active (w))) |
5031 | if (ecb_expect_false (ev_is_active (w))) |
3640 | return; |
5032 | return; |
3641 | |
5033 | |
3642 | EV_FREQUENT_CHECK; |
5034 | EV_FREQUENT_CHECK; |
3643 | |
5035 | |
3644 | ev_start (EV_A_ (W)w, ++checkcnt); |
5036 | ev_start (EV_A_ (W)w, ++checkcnt); |
3645 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5037 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
3646 | checks [checkcnt - 1] = w; |
5038 | checks [checkcnt - 1] = w; |
3647 | |
5039 | |
3648 | EV_FREQUENT_CHECK; |
5040 | EV_FREQUENT_CHECK; |
3649 | } |
5041 | } |
3650 | |
5042 | |
3651 | void |
5043 | void |
3652 | ev_check_stop (EV_P_ ev_check *w) |
5044 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
3653 | { |
5045 | { |
3654 | clear_pending (EV_A_ (W)w); |
5046 | clear_pending (EV_A_ (W)w); |
3655 | if (expect_false (!ev_is_active (w))) |
5047 | if (ecb_expect_false (!ev_is_active (w))) |
3656 | return; |
5048 | return; |
3657 | |
5049 | |
3658 | EV_FREQUENT_CHECK; |
5050 | EV_FREQUENT_CHECK; |
3659 | |
5051 | |
3660 | { |
5052 | { |
… | |
… | |
3669 | EV_FREQUENT_CHECK; |
5061 | EV_FREQUENT_CHECK; |
3670 | } |
5062 | } |
3671 | #endif |
5063 | #endif |
3672 | |
5064 | |
3673 | #if EV_EMBED_ENABLE |
5065 | #if EV_EMBED_ENABLE |
3674 | void noinline |
5066 | ecb_noinline |
|
|
5067 | void |
3675 | ev_embed_sweep (EV_P_ ev_embed *w) |
5068 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
3676 | { |
5069 | { |
3677 | ev_run (w->other, EVRUN_NOWAIT); |
5070 | ev_run (w->other, EVRUN_NOWAIT); |
3678 | } |
5071 | } |
3679 | |
5072 | |
3680 | static void |
5073 | static void |
… | |
… | |
3702 | ev_run (EV_A_ EVRUN_NOWAIT); |
5095 | ev_run (EV_A_ EVRUN_NOWAIT); |
3703 | } |
5096 | } |
3704 | } |
5097 | } |
3705 | } |
5098 | } |
3706 | |
5099 | |
|
|
5100 | #if EV_FORK_ENABLE |
3707 | static void |
5101 | static void |
3708 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5102 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
3709 | { |
5103 | { |
3710 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5104 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3711 | |
5105 | |
… | |
… | |
3718 | ev_run (EV_A_ EVRUN_NOWAIT); |
5112 | ev_run (EV_A_ EVRUN_NOWAIT); |
3719 | } |
5113 | } |
3720 | |
5114 | |
3721 | ev_embed_start (EV_A_ w); |
5115 | ev_embed_start (EV_A_ w); |
3722 | } |
5116 | } |
|
|
5117 | #endif |
3723 | |
5118 | |
3724 | #if 0 |
5119 | #if 0 |
3725 | static void |
5120 | static void |
3726 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5121 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3727 | { |
5122 | { |
3728 | ev_idle_stop (EV_A_ idle); |
5123 | ev_idle_stop (EV_A_ idle); |
3729 | } |
5124 | } |
3730 | #endif |
5125 | #endif |
3731 | |
5126 | |
3732 | void |
5127 | void |
3733 | ev_embed_start (EV_P_ ev_embed *w) |
5128 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3734 | { |
5129 | { |
3735 | if (expect_false (ev_is_active (w))) |
5130 | if (ecb_expect_false (ev_is_active (w))) |
3736 | return; |
5131 | return; |
3737 | |
5132 | |
3738 | { |
5133 | { |
3739 | EV_P = w->other; |
5134 | EV_P = w->other; |
3740 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5135 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
3748 | |
5143 | |
3749 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5144 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3750 | ev_set_priority (&w->prepare, EV_MINPRI); |
5145 | ev_set_priority (&w->prepare, EV_MINPRI); |
3751 | ev_prepare_start (EV_A_ &w->prepare); |
5146 | ev_prepare_start (EV_A_ &w->prepare); |
3752 | |
5147 | |
|
|
5148 | #if EV_FORK_ENABLE |
3753 | ev_fork_init (&w->fork, embed_fork_cb); |
5149 | ev_fork_init (&w->fork, embed_fork_cb); |
3754 | ev_fork_start (EV_A_ &w->fork); |
5150 | ev_fork_start (EV_A_ &w->fork); |
|
|
5151 | #endif |
3755 | |
5152 | |
3756 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5153 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3757 | |
5154 | |
3758 | ev_start (EV_A_ (W)w, 1); |
5155 | ev_start (EV_A_ (W)w, 1); |
3759 | |
5156 | |
3760 | EV_FREQUENT_CHECK; |
5157 | EV_FREQUENT_CHECK; |
3761 | } |
5158 | } |
3762 | |
5159 | |
3763 | void |
5160 | void |
3764 | ev_embed_stop (EV_P_ ev_embed *w) |
5161 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3765 | { |
5162 | { |
3766 | clear_pending (EV_A_ (W)w); |
5163 | clear_pending (EV_A_ (W)w); |
3767 | if (expect_false (!ev_is_active (w))) |
5164 | if (ecb_expect_false (!ev_is_active (w))) |
3768 | return; |
5165 | return; |
3769 | |
5166 | |
3770 | EV_FREQUENT_CHECK; |
5167 | EV_FREQUENT_CHECK; |
3771 | |
5168 | |
3772 | ev_io_stop (EV_A_ &w->io); |
5169 | ev_io_stop (EV_A_ &w->io); |
3773 | ev_prepare_stop (EV_A_ &w->prepare); |
5170 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5171 | #if EV_FORK_ENABLE |
3774 | ev_fork_stop (EV_A_ &w->fork); |
5172 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5173 | #endif |
3775 | |
5174 | |
3776 | ev_stop (EV_A_ (W)w); |
5175 | ev_stop (EV_A_ (W)w); |
3777 | |
5176 | |
3778 | EV_FREQUENT_CHECK; |
5177 | EV_FREQUENT_CHECK; |
3779 | } |
5178 | } |
3780 | #endif |
5179 | #endif |
3781 | |
5180 | |
3782 | #if EV_FORK_ENABLE |
5181 | #if EV_FORK_ENABLE |
3783 | void |
5182 | void |
3784 | ev_fork_start (EV_P_ ev_fork *w) |
5183 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3785 | { |
5184 | { |
3786 | if (expect_false (ev_is_active (w))) |
5185 | if (ecb_expect_false (ev_is_active (w))) |
3787 | return; |
5186 | return; |
3788 | |
5187 | |
3789 | EV_FREQUENT_CHECK; |
5188 | EV_FREQUENT_CHECK; |
3790 | |
5189 | |
3791 | ev_start (EV_A_ (W)w, ++forkcnt); |
5190 | ev_start (EV_A_ (W)w, ++forkcnt); |
3792 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5191 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3793 | forks [forkcnt - 1] = w; |
5192 | forks [forkcnt - 1] = w; |
3794 | |
5193 | |
3795 | EV_FREQUENT_CHECK; |
5194 | EV_FREQUENT_CHECK; |
3796 | } |
5195 | } |
3797 | |
5196 | |
3798 | void |
5197 | void |
3799 | ev_fork_stop (EV_P_ ev_fork *w) |
5198 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3800 | { |
5199 | { |
3801 | clear_pending (EV_A_ (W)w); |
5200 | clear_pending (EV_A_ (W)w); |
3802 | if (expect_false (!ev_is_active (w))) |
5201 | if (ecb_expect_false (!ev_is_active (w))) |
3803 | return; |
5202 | return; |
3804 | |
5203 | |
3805 | EV_FREQUENT_CHECK; |
5204 | EV_FREQUENT_CHECK; |
3806 | |
5205 | |
3807 | { |
5206 | { |
… | |
… | |
3817 | } |
5216 | } |
3818 | #endif |
5217 | #endif |
3819 | |
5218 | |
3820 | #if EV_CLEANUP_ENABLE |
5219 | #if EV_CLEANUP_ENABLE |
3821 | void |
5220 | void |
3822 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
5221 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3823 | { |
5222 | { |
3824 | if (expect_false (ev_is_active (w))) |
5223 | if (ecb_expect_false (ev_is_active (w))) |
3825 | return; |
5224 | return; |
3826 | |
5225 | |
3827 | EV_FREQUENT_CHECK; |
5226 | EV_FREQUENT_CHECK; |
3828 | |
5227 | |
3829 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5228 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
3830 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5229 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
3831 | cleanups [cleanupcnt - 1] = w; |
5230 | cleanups [cleanupcnt - 1] = w; |
3832 | |
5231 | |
3833 | /* cleanup watchers should never keep a refcount on the loop */ |
5232 | /* cleanup watchers should never keep a refcount on the loop */ |
3834 | ev_unref (EV_A); |
5233 | ev_unref (EV_A); |
3835 | EV_FREQUENT_CHECK; |
5234 | EV_FREQUENT_CHECK; |
3836 | } |
5235 | } |
3837 | |
5236 | |
3838 | void |
5237 | void |
3839 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
5238 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
3840 | { |
5239 | { |
3841 | clear_pending (EV_A_ (W)w); |
5240 | clear_pending (EV_A_ (W)w); |
3842 | if (expect_false (!ev_is_active (w))) |
5241 | if (ecb_expect_false (!ev_is_active (w))) |
3843 | return; |
5242 | return; |
3844 | |
5243 | |
3845 | EV_FREQUENT_CHECK; |
5244 | EV_FREQUENT_CHECK; |
3846 | ev_ref (EV_A); |
5245 | ev_ref (EV_A); |
3847 | |
5246 | |
… | |
… | |
3858 | } |
5257 | } |
3859 | #endif |
5258 | #endif |
3860 | |
5259 | |
3861 | #if EV_ASYNC_ENABLE |
5260 | #if EV_ASYNC_ENABLE |
3862 | void |
5261 | void |
3863 | ev_async_start (EV_P_ ev_async *w) |
5262 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3864 | { |
5263 | { |
3865 | if (expect_false (ev_is_active (w))) |
5264 | if (ecb_expect_false (ev_is_active (w))) |
3866 | return; |
5265 | return; |
3867 | |
5266 | |
3868 | w->sent = 0; |
5267 | w->sent = 0; |
3869 | |
5268 | |
3870 | evpipe_init (EV_A); |
5269 | evpipe_init (EV_A); |
3871 | |
5270 | |
3872 | EV_FREQUENT_CHECK; |
5271 | EV_FREQUENT_CHECK; |
3873 | |
5272 | |
3874 | ev_start (EV_A_ (W)w, ++asynccnt); |
5273 | ev_start (EV_A_ (W)w, ++asynccnt); |
3875 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5274 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3876 | asyncs [asynccnt - 1] = w; |
5275 | asyncs [asynccnt - 1] = w; |
3877 | |
5276 | |
3878 | EV_FREQUENT_CHECK; |
5277 | EV_FREQUENT_CHECK; |
3879 | } |
5278 | } |
3880 | |
5279 | |
3881 | void |
5280 | void |
3882 | ev_async_stop (EV_P_ ev_async *w) |
5281 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3883 | { |
5282 | { |
3884 | clear_pending (EV_A_ (W)w); |
5283 | clear_pending (EV_A_ (W)w); |
3885 | if (expect_false (!ev_is_active (w))) |
5284 | if (ecb_expect_false (!ev_is_active (w))) |
3886 | return; |
5285 | return; |
3887 | |
5286 | |
3888 | EV_FREQUENT_CHECK; |
5287 | EV_FREQUENT_CHECK; |
3889 | |
5288 | |
3890 | { |
5289 | { |
… | |
… | |
3898 | |
5297 | |
3899 | EV_FREQUENT_CHECK; |
5298 | EV_FREQUENT_CHECK; |
3900 | } |
5299 | } |
3901 | |
5300 | |
3902 | void |
5301 | void |
3903 | ev_async_send (EV_P_ ev_async *w) |
5302 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3904 | { |
5303 | { |
3905 | w->sent = 1; |
5304 | w->sent = 1; |
3906 | evpipe_write (EV_A_ &async_pending); |
5305 | evpipe_write (EV_A_ &async_pending); |
3907 | } |
5306 | } |
3908 | #endif |
5307 | #endif |
… | |
… | |
3945 | |
5344 | |
3946 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5345 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3947 | } |
5346 | } |
3948 | |
5347 | |
3949 | void |
5348 | void |
3950 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5349 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3951 | { |
5350 | { |
3952 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5351 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3953 | |
|
|
3954 | if (expect_false (!once)) |
|
|
3955 | { |
|
|
3956 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
3957 | return; |
|
|
3958 | } |
|
|
3959 | |
5352 | |
3960 | once->cb = cb; |
5353 | once->cb = cb; |
3961 | once->arg = arg; |
5354 | once->arg = arg; |
3962 | |
5355 | |
3963 | ev_init (&once->io, once_cb_io); |
5356 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3976 | } |
5369 | } |
3977 | |
5370 | |
3978 | /*****************************************************************************/ |
5371 | /*****************************************************************************/ |
3979 | |
5372 | |
3980 | #if EV_WALK_ENABLE |
5373 | #if EV_WALK_ENABLE |
3981 | void ecb_cold |
5374 | ecb_cold |
|
|
5375 | void |
3982 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5376 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3983 | { |
5377 | { |
3984 | int i, j; |
5378 | int i, j; |
3985 | ev_watcher_list *wl, *wn; |
5379 | ev_watcher_list *wl, *wn; |
3986 | |
5380 | |
3987 | if (types & (EV_IO | EV_EMBED)) |
5381 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
4093 | |
5487 | |
4094 | #if EV_MULTIPLICITY |
5488 | #if EV_MULTIPLICITY |
4095 | #include "ev_wrap.h" |
5489 | #include "ev_wrap.h" |
4096 | #endif |
5490 | #endif |
4097 | |
5491 | |
4098 | EV_CPP(}) |
|
|
4099 | |
|
|