1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 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 |
… | |
… | |
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> |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
247 | # endif |
211 | # undef EV_AVOID_STDIO |
248 | # undef EV_AVOID_STDIO |
212 | #endif |
249 | #endif |
213 | |
|
|
214 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
215 | * a limit of 1024 into their select. Where people have brains, |
|
|
216 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
217 | * ordered to have a vacuum, or they do anything for money. |
|
|
218 | * This might help. Or not. |
|
|
219 | */ |
|
|
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
221 | |
250 | |
222 | /* 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 */ |
223 | |
252 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
253 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
254 | #if defined EV_NSIG |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
270 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
271 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
272 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
273 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
274 | #else |
246 | # error "unable to find value for NSIG, please report" |
275 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
|
|
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
276 | #endif |
251 | |
277 | |
252 | #ifndef EV_USE_FLOOR |
278 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
279 | # define EV_USE_FLOOR 0 |
254 | #endif |
280 | #endif |
255 | |
281 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
282 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
283 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
284 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
285 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
287 | # endif |
|
|
288 | #endif |
|
|
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 |
261 | # endif |
296 | # endif |
262 | #endif |
297 | #endif |
263 | |
298 | |
264 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
307 | |
342 | |
308 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
309 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
310 | #endif |
345 | #endif |
311 | |
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 | |
312 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
315 | # else |
366 | # else |
316 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
… | |
… | |
339 | # else |
390 | # else |
340 | # define EV_USE_SIGNALFD 0 |
391 | # define EV_USE_SIGNALFD 0 |
341 | # endif |
392 | # endif |
342 | #endif |
393 | #endif |
343 | |
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 | |
344 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
345 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
346 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
347 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
348 | #endif |
407 | #endif |
… | |
… | |
357 | |
416 | |
358 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
360 | #endif |
419 | #endif |
361 | |
420 | |
362 | #ifdef ANDROID |
421 | #ifdef __ANDROID__ |
363 | /* supposedly, android doesn't typedef fd_mask */ |
422 | /* supposedly, android doesn't typedef fd_mask */ |
364 | # undef EV_USE_SELECT |
423 | # undef EV_USE_SELECT |
365 | # define EV_USE_SELECT 0 |
424 | # define EV_USE_SELECT 0 |
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
425 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
367 | # undef EV_USE_CLOCK_SYSCALL |
426 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
381 | # include <sys/syscall.h> |
440 | # include <sys/syscall.h> |
382 | # ifdef SYS_clock_gettime |
441 | # ifdef SYS_clock_gettime |
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
384 | # undef EV_USE_MONOTONIC |
443 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 1 |
444 | # define EV_USE_MONOTONIC 1 |
|
|
445 | # define EV_NEED_SYSCALL 1 |
386 | # else |
446 | # else |
387 | # undef EV_USE_CLOCK_SYSCALL |
447 | # undef EV_USE_CLOCK_SYSCALL |
388 | # define EV_USE_CLOCK_SYSCALL 0 |
448 | # define EV_USE_CLOCK_SYSCALL 0 |
389 | # endif |
449 | # endif |
390 | #endif |
450 | #endif |
… | |
… | |
404 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
405 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
406 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
407 | #endif |
467 | #endif |
408 | |
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 | |
409 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
410 | /* 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 */ |
411 | # if !defined _WIN32 && !defined __hpux |
479 | # if !defined _WIN32 && !defined __hpux |
412 | # 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 |
413 | # endif |
506 | # endif |
414 | #endif |
507 | #endif |
415 | |
508 | |
416 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
417 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
… | |
… | |
422 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
423 | # endif |
516 | # endif |
424 | #endif |
517 | #endif |
425 | |
518 | |
426 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
427 | /* 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 */ |
428 | # include <stdint.h> |
521 | # include <stdint.h> |
429 | # ifndef EFD_NONBLOCK |
522 | # ifndef EFD_NONBLOCK |
430 | # define EFD_NONBLOCK O_NONBLOCK |
523 | # define EFD_NONBLOCK O_NONBLOCK |
431 | # endif |
524 | # endif |
432 | # ifndef EFD_CLOEXEC |
525 | # ifndef EFD_CLOEXEC |
… | |
… | |
438 | # endif |
531 | # endif |
439 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
440 | #endif |
533 | #endif |
441 | |
534 | |
442 | #if EV_USE_SIGNALFD |
535 | #if EV_USE_SIGNALFD |
443 | /* 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 */ |
444 | # include <stdint.h> |
537 | # include <stdint.h> |
445 | # ifndef SFD_NONBLOCK |
538 | # ifndef SFD_NONBLOCK |
446 | # define SFD_NONBLOCK O_NONBLOCK |
539 | # define SFD_NONBLOCK O_NONBLOCK |
447 | # endif |
540 | # endif |
448 | # ifndef SFD_CLOEXEC |
541 | # ifndef SFD_CLOEXEC |
… | |
… | |
450 | # define SFD_CLOEXEC O_CLOEXEC |
543 | # define SFD_CLOEXEC O_CLOEXEC |
451 | # else |
544 | # else |
452 | # define SFD_CLOEXEC 02000000 |
545 | # define SFD_CLOEXEC 02000000 |
453 | # endif |
546 | # endif |
454 | # endif |
547 | # endif |
455 | 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); |
456 | |
549 | |
457 | struct signalfd_siginfo |
550 | struct signalfd_siginfo |
458 | { |
551 | { |
459 | uint32_t ssi_signo; |
552 | uint32_t ssi_signo; |
460 | char pad[128 - sizeof (uint32_t)]; |
553 | char pad[128 - sizeof (uint32_t)]; |
461 | }; |
554 | }; |
462 | #endif |
555 | #endif |
463 | |
556 | |
464 | /**/ |
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 | /*****************************************************************************/ |
465 | |
568 | |
466 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
467 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
468 | #else |
571 | #else |
469 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
… | |
… | |
474 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
475 | */ |
578 | */ |
476 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
477 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
478 | |
581 | |
479 | #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) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
|
|
584 | #define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */ |
481 | |
585 | |
|
|
586 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
587 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
588 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
589 | #define EV_TSTAMP_HUGE \ |
|
|
590 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
591 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
592 | : 2147483647.) \ |
|
|
593 | |
|
|
594 | #ifndef EV_TS_CONST |
|
|
595 | # define EV_TS_CONST(nv) nv |
|
|
596 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
597 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
598 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
599 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
600 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
601 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
602 | #endif |
484 | |
603 | |
485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
604 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
486 | /* ECB.H BEGIN */ |
605 | /* ECB.H BEGIN */ |
487 | /* |
606 | /* |
488 | * libecb - http://software.schmorp.de/pkg/libecb |
607 | * libecb - http://software.schmorp.de/pkg/libecb |
489 | * |
608 | * |
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
609 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
491 | * Copyright (©) 2011 Emanuele Giaquinta |
610 | * Copyright (©) 2011 Emanuele Giaquinta |
492 | * All rights reserved. |
611 | * All rights reserved. |
493 | * |
612 | * |
494 | * Redistribution and use in source and binary forms, with or without modifica- |
613 | * Redistribution and use in source and binary forms, with or without modifica- |
495 | * tion, are permitted provided that the following conditions are met: |
614 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
628 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
629 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
630 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
631 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
632 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
633 | * |
|
|
634 | * Alternatively, the contents of this file may be used under the terms of |
|
|
635 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
636 | * in which case the provisions of the GPL are applicable instead of |
|
|
637 | * the above. If you wish to allow the use of your version of this file |
|
|
638 | * only under the terms of the GPL and not to allow others to use your |
|
|
639 | * version of this file under the BSD license, indicate your decision |
|
|
640 | * by deleting the provisions above and replace them with the notice |
|
|
641 | * and other provisions required by the GPL. If you do not delete the |
|
|
642 | * provisions above, a recipient may use your version of this file under |
|
|
643 | * either the BSD or the GPL. |
514 | */ |
644 | */ |
515 | |
645 | |
516 | #ifndef ECB_H |
646 | #ifndef ECB_H |
517 | #define ECB_H |
647 | #define ECB_H |
518 | |
648 | |
519 | /* 16 bits major, 16 bits minor */ |
649 | /* 16 bits major, 16 bits minor */ |
520 | #define ECB_VERSION 0x00010002 |
650 | #define ECB_VERSION 0x00010008 |
|
|
651 | |
|
|
652 | #include <string.h> /* for memcpy */ |
521 | |
653 | |
522 | #ifdef _WIN32 |
654 | #ifdef _WIN32 |
523 | typedef signed char int8_t; |
655 | typedef signed char int8_t; |
524 | typedef unsigned char uint8_t; |
656 | typedef unsigned char uint8_t; |
|
|
657 | typedef signed char int_fast8_t; |
|
|
658 | typedef unsigned char uint_fast8_t; |
525 | typedef signed short int16_t; |
659 | typedef signed short int16_t; |
526 | typedef unsigned short uint16_t; |
660 | typedef unsigned short uint16_t; |
|
|
661 | typedef signed int int_fast16_t; |
|
|
662 | typedef unsigned int uint_fast16_t; |
527 | typedef signed int int32_t; |
663 | typedef signed int int32_t; |
528 | typedef unsigned int uint32_t; |
664 | typedef unsigned int uint32_t; |
|
|
665 | typedef signed int int_fast32_t; |
|
|
666 | typedef unsigned int uint_fast32_t; |
529 | #if __GNUC__ |
667 | #if __GNUC__ |
530 | typedef signed long long int64_t; |
668 | typedef signed long long int64_t; |
531 | typedef unsigned long long uint64_t; |
669 | typedef unsigned long long uint64_t; |
532 | #else /* _MSC_VER || __BORLANDC__ */ |
670 | #else /* _MSC_VER || __BORLANDC__ */ |
533 | typedef signed __int64 int64_t; |
671 | typedef signed __int64 int64_t; |
534 | typedef unsigned __int64 uint64_t; |
672 | typedef unsigned __int64 uint64_t; |
535 | #endif |
673 | #endif |
|
|
674 | typedef int64_t int_fast64_t; |
|
|
675 | typedef uint64_t uint_fast64_t; |
536 | #ifdef _WIN64 |
676 | #ifdef _WIN64 |
537 | #define ECB_PTRSIZE 8 |
677 | #define ECB_PTRSIZE 8 |
538 | typedef uint64_t uintptr_t; |
678 | typedef uint64_t uintptr_t; |
539 | typedef int64_t intptr_t; |
679 | typedef int64_t intptr_t; |
540 | #else |
680 | #else |
… | |
… | |
542 | typedef uint32_t uintptr_t; |
682 | typedef uint32_t uintptr_t; |
543 | typedef int32_t intptr_t; |
683 | typedef int32_t intptr_t; |
544 | #endif |
684 | #endif |
545 | #else |
685 | #else |
546 | #include <inttypes.h> |
686 | #include <inttypes.h> |
547 | #if UINTMAX_MAX > 0xffffffffU |
687 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
548 | #define ECB_PTRSIZE 8 |
688 | #define ECB_PTRSIZE 8 |
549 | #else |
689 | #else |
550 | #define ECB_PTRSIZE 4 |
690 | #define ECB_PTRSIZE 4 |
|
|
691 | #endif |
|
|
692 | #endif |
|
|
693 | |
|
|
694 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
695 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
696 | |
|
|
697 | #ifndef ECB_OPTIMIZE_SIZE |
|
|
698 | #if __OPTIMIZE_SIZE__ |
|
|
699 | #define ECB_OPTIMIZE_SIZE 1 |
|
|
700 | #else |
|
|
701 | #define ECB_OPTIMIZE_SIZE 0 |
|
|
702 | #endif |
|
|
703 | #endif |
|
|
704 | |
|
|
705 | /* work around x32 idiocy by defining proper macros */ |
|
|
706 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
707 | #if _ILP32 |
|
|
708 | #define ECB_AMD64_X32 1 |
|
|
709 | #else |
|
|
710 | #define ECB_AMD64 1 |
551 | #endif |
711 | #endif |
552 | #endif |
712 | #endif |
553 | |
713 | |
554 | /* many compilers define _GNUC_ to some versions but then only implement |
714 | /* many compilers define _GNUC_ to some versions but then only implement |
555 | * what their idiot authors think are the "more important" extensions, |
715 | * what their idiot authors think are the "more important" extensions, |
556 | * causing enormous grief in return for some better fake benchmark numbers. |
716 | * causing enormous grief in return for some better fake benchmark numbers. |
557 | * or so. |
717 | * or so. |
558 | * we try to detect these and simply assume they are not gcc - if they have |
718 | * we try to detect these and simply assume they are not gcc - if they have |
559 | * an issue with that they should have done it right in the first place. |
719 | * an issue with that they should have done it right in the first place. |
560 | */ |
720 | */ |
561 | #ifndef ECB_GCC_VERSION |
|
|
562 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
721 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
563 | #define ECB_GCC_VERSION(major,minor) 0 |
722 | #define ECB_GCC_VERSION(major,minor) 0 |
564 | #else |
723 | #else |
565 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
724 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
566 | #endif |
725 | #endif |
567 | #endif |
|
|
568 | |
726 | |
569 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
727 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
570 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
728 | |
571 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
729 | #if __clang__ && defined __has_builtin |
|
|
730 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
731 | #else |
|
|
732 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | #if __clang__ && defined __has_extension |
|
|
736 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
737 | #else |
|
|
738 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
739 | #endif |
|
|
740 | |
572 | #define ECB_CPP (__cplusplus+0) |
741 | #define ECB_CPP (__cplusplus+0) |
573 | #define ECB_CPP11 (__cplusplus >= 201103L) |
742 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
743 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
744 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
745 | |
|
|
746 | #if ECB_CPP |
|
|
747 | #define ECB_C 0 |
|
|
748 | #define ECB_STDC_VERSION 0 |
|
|
749 | #else |
|
|
750 | #define ECB_C 1 |
|
|
751 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
752 | #endif |
|
|
753 | |
|
|
754 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
755 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
756 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
574 | |
757 | |
575 | #if ECB_CPP |
758 | #if ECB_CPP |
576 | #define ECB_EXTERN_C extern "C" |
759 | #define ECB_EXTERN_C extern "C" |
577 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
760 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
578 | #define ECB_EXTERN_C_END } |
761 | #define ECB_EXTERN_C_END } |
… | |
… | |
593 | |
776 | |
594 | #if ECB_NO_SMP |
777 | #if ECB_NO_SMP |
595 | #define ECB_MEMORY_FENCE do { } while (0) |
778 | #define ECB_MEMORY_FENCE do { } while (0) |
596 | #endif |
779 | #endif |
597 | |
780 | |
|
|
781 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
782 | #if __xlC__ && ECB_CPP |
|
|
783 | #include <builtins.h> |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if 1400 <= _MSC_VER |
|
|
787 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
788 | #endif |
|
|
789 | |
598 | #ifndef ECB_MEMORY_FENCE |
790 | #ifndef ECB_MEMORY_FENCE |
599 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
791 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
792 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
600 | #if __i386 || __i386__ |
793 | #if __i386 || __i386__ |
601 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
602 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
795 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
603 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
796 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
604 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
797 | #elif ECB_GCC_AMD64 |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
798 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
606 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
799 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
607 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
800 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
608 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
801 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
609 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
802 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
803 | #elif defined __ARM_ARCH_2__ \ |
|
|
804 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
805 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
806 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
807 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
808 | || defined __ARM_ARCH_5TEJ__ |
|
|
809 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
610 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
810 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
611 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
811 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
812 | || defined __ARM_ARCH_6T2__ |
612 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
813 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
613 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
814 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
614 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
815 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
816 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
616 | #elif __sparc || __sparc__ |
817 | #elif __aarch64__ |
|
|
818 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
819 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
618 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
821 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
619 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
822 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
620 | #elif defined __s390__ || defined __s390x__ |
823 | #elif defined __s390__ || defined __s390x__ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
824 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
622 | #elif defined __mips__ |
825 | #elif defined __mips__ |
|
|
826 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
827 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
828 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
624 | #elif defined __alpha__ |
829 | #elif defined __alpha__ |
625 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
830 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
626 | #elif defined __hppa__ |
831 | #elif defined __hppa__ |
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
832 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
833 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
629 | #elif defined __ia64__ |
834 | #elif defined __ia64__ |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
835 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
836 | #elif defined __m68k__ |
|
|
837 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
838 | #elif defined __m88k__ |
|
|
839 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
840 | #elif defined __sh__ |
|
|
841 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
631 | #endif |
842 | #endif |
632 | #endif |
843 | #endif |
633 | #endif |
844 | #endif |
634 | |
845 | |
635 | #ifndef ECB_MEMORY_FENCE |
846 | #ifndef ECB_MEMORY_FENCE |
636 | #if ECB_GCC_VERSION(4,7) |
847 | #if ECB_GCC_VERSION(4,7) |
637 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
848 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
638 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
849 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
850 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
851 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
852 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
639 | |
853 | |
640 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
854 | #elif ECB_CLANG_EXTENSION(c_atomic) |
641 | * without risking compile time errors with other compilers. We *could* |
|
|
642 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
643 | * around this shit time and again. |
|
|
644 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
645 | * // see comment below (stdatomic.h) about the C11 memory model. |
855 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
646 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
856 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
647 | */ |
857 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
858 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
859 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
648 | |
860 | |
649 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
861 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
650 | #define ECB_MEMORY_FENCE __sync_synchronize () |
862 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
863 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
864 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
865 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
866 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
867 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
868 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
651 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
869 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
652 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
870 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
653 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
871 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
654 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
872 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
655 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
873 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
656 | #elif defined _WIN32 |
874 | #elif defined _WIN32 |
657 | #include <WinNT.h> |
875 | #include <WinNT.h> |
658 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
876 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
659 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
877 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
660 | #include <mbarrier.h> |
878 | #include <mbarrier.h> |
661 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
879 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
662 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
880 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
663 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
881 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
882 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
664 | #elif __xlC__ |
883 | #elif __xlC__ |
665 | #define ECB_MEMORY_FENCE __sync () |
884 | #define ECB_MEMORY_FENCE __sync () |
666 | #endif |
885 | #endif |
667 | #endif |
886 | #endif |
668 | |
887 | |
669 | #ifndef ECB_MEMORY_FENCE |
888 | #ifndef ECB_MEMORY_FENCE |
670 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
889 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
671 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
890 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
672 | /* not just C11 atomics and atomic accesses */ |
891 | /* not just C11 atomics and atomic accesses */ |
673 | #include <stdatomic.h> |
892 | #include <stdatomic.h> |
674 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
675 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
676 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
677 | /* for most usages, or gcc and clang have a bug */ |
|
|
678 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
679 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
680 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
893 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
894 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
895 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
681 | #endif |
896 | #endif |
682 | #endif |
897 | #endif |
683 | |
898 | |
684 | #ifndef ECB_MEMORY_FENCE |
899 | #ifndef ECB_MEMORY_FENCE |
685 | #if !ECB_AVOID_PTHREADS |
900 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
705 | |
920 | |
706 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
921 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
707 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
922 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
708 | #endif |
923 | #endif |
709 | |
924 | |
|
|
925 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
926 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
927 | #endif |
|
|
928 | |
710 | /*****************************************************************************/ |
929 | /*****************************************************************************/ |
711 | |
930 | |
712 | #if __cplusplus |
931 | #if ECB_CPP |
713 | #define ecb_inline static inline |
932 | #define ecb_inline static inline |
714 | #elif ECB_GCC_VERSION(2,5) |
933 | #elif ECB_GCC_VERSION(2,5) |
715 | #define ecb_inline static __inline__ |
934 | #define ecb_inline static __inline__ |
716 | #elif ECB_C99 |
935 | #elif ECB_C99 |
717 | #define ecb_inline static inline |
936 | #define ecb_inline static inline |
… | |
… | |
731 | |
950 | |
732 | #define ECB_CONCAT_(a, b) a ## b |
951 | #define ECB_CONCAT_(a, b) a ## b |
733 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
952 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
734 | #define ECB_STRINGIFY_(a) # a |
953 | #define ECB_STRINGIFY_(a) # a |
735 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
954 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
955 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
736 | |
956 | |
737 | #define ecb_function_ ecb_inline |
957 | #define ecb_function_ ecb_inline |
738 | |
958 | |
739 | #if ECB_GCC_VERSION(3,1) |
959 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
740 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
960 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
961 | #else |
|
|
962 | #define ecb_attribute(attrlist) |
|
|
963 | #endif |
|
|
964 | |
|
|
965 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
741 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
966 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
967 | #else |
|
|
968 | /* possible C11 impl for integral types |
|
|
969 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
970 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
971 | |
|
|
972 | #define ecb_is_constant(expr) 0 |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
742 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
976 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
977 | #else |
|
|
978 | #define ecb_expect(expr,value) (expr) |
|
|
979 | #endif |
|
|
980 | |
|
|
981 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
743 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
982 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
744 | #else |
983 | #else |
745 | #define ecb_attribute(attrlist) |
|
|
746 | #define ecb_is_constant(expr) 0 |
|
|
747 | #define ecb_expect(expr,value) (expr) |
|
|
748 | #define ecb_prefetch(addr,rw,locality) |
984 | #define ecb_prefetch(addr,rw,locality) |
749 | #endif |
985 | #endif |
750 | |
986 | |
751 | /* no emulation for ecb_decltype */ |
987 | /* no emulation for ecb_decltype */ |
752 | #if ECB_GCC_VERSION(4,5) |
988 | #if ECB_CPP11 |
|
|
989 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
990 | template<class T> struct ecb_decltype_t { typedef T type; }; |
753 | #define ecb_decltype(x) __decltype(x) |
991 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
754 | #elif ECB_GCC_VERSION(3,0) |
992 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
755 | #define ecb_decltype(x) __typeof(x) |
993 | #define ecb_decltype(x) __typeof__ (x) |
756 | #endif |
994 | #endif |
757 | |
995 | |
|
|
996 | #if _MSC_VER >= 1300 |
|
|
997 | #define ecb_deprecated __declspec (deprecated) |
|
|
998 | #else |
|
|
999 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
1000 | #endif |
|
|
1001 | |
|
|
1002 | #if _MSC_VER >= 1500 |
|
|
1003 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
1004 | #elif ECB_GCC_VERSION(4,5) |
|
|
1005 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
1006 | #else |
|
|
1007 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
1008 | #endif |
|
|
1009 | |
|
|
1010 | #if _MSC_VER >= 1400 |
|
|
1011 | #define ecb_noinline __declspec (noinline) |
|
|
1012 | #else |
758 | #define ecb_noinline ecb_attribute ((__noinline__)) |
1013 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
1014 | #endif |
|
|
1015 | |
759 | #define ecb_unused ecb_attribute ((__unused__)) |
1016 | #define ecb_unused ecb_attribute ((__unused__)) |
760 | #define ecb_const ecb_attribute ((__const__)) |
1017 | #define ecb_const ecb_attribute ((__const__)) |
761 | #define ecb_pure ecb_attribute ((__pure__)) |
1018 | #define ecb_pure ecb_attribute ((__pure__)) |
762 | |
1019 | |
763 | #if ECB_C11 |
1020 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1021 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
764 | #define ecb_noreturn _Noreturn |
1022 | #define ecb_noreturn _Noreturn |
|
|
1023 | #elif ECB_CPP11 |
|
|
1024 | #define ecb_noreturn [[noreturn]] |
|
|
1025 | #elif _MSC_VER >= 1200 |
|
|
1026 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1027 | #define ecb_noreturn __declspec (noreturn) |
765 | #else |
1028 | #else |
766 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
1029 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
767 | #endif |
1030 | #endif |
768 | |
1031 | |
769 | #if ECB_GCC_VERSION(4,3) |
1032 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
784 | /* for compatibility to the rest of the world */ |
1047 | /* for compatibility to the rest of the world */ |
785 | #define ecb_likely(expr) ecb_expect_true (expr) |
1048 | #define ecb_likely(expr) ecb_expect_true (expr) |
786 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
1049 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
787 | |
1050 | |
788 | /* count trailing zero bits and count # of one bits */ |
1051 | /* count trailing zero bits and count # of one bits */ |
789 | #if ECB_GCC_VERSION(3,4) |
1052 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1053 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1054 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1055 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
790 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
1056 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
791 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
1057 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
792 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
1058 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
793 | #define ecb_ctz32(x) __builtin_ctz (x) |
1059 | #define ecb_ctz32(x) __builtin_ctz (x) |
794 | #define ecb_ctz64(x) __builtin_ctzll (x) |
1060 | #define ecb_ctz64(x) __builtin_ctzll (x) |
795 | #define ecb_popcount32(x) __builtin_popcount (x) |
1061 | #define ecb_popcount32(x) __builtin_popcount (x) |
796 | /* no popcountll */ |
1062 | /* no popcountll */ |
797 | #else |
1063 | #else |
798 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
1064 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
799 | ecb_function_ int |
1065 | ecb_function_ ecb_const int |
800 | ecb_ctz32 (uint32_t x) |
1066 | ecb_ctz32 (uint32_t x) |
801 | { |
1067 | { |
|
|
1068 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1069 | unsigned long r; |
|
|
1070 | _BitScanForward (&r, x); |
|
|
1071 | return (int)r; |
|
|
1072 | #else |
802 | int r = 0; |
1073 | int r = 0; |
803 | |
1074 | |
804 | x &= ~x + 1; /* this isolates the lowest bit */ |
1075 | x &= ~x + 1; /* this isolates the lowest bit */ |
805 | |
1076 | |
806 | #if ECB_branchless_on_i386 |
1077 | #if ECB_branchless_on_i386 |
… | |
… | |
816 | if (x & 0xff00ff00) r += 8; |
1087 | if (x & 0xff00ff00) r += 8; |
817 | if (x & 0xffff0000) r += 16; |
1088 | if (x & 0xffff0000) r += 16; |
818 | #endif |
1089 | #endif |
819 | |
1090 | |
820 | return r; |
1091 | return r; |
|
|
1092 | #endif |
821 | } |
1093 | } |
822 | |
1094 | |
823 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
1095 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
824 | ecb_function_ int |
1096 | ecb_function_ ecb_const int |
825 | ecb_ctz64 (uint64_t x) |
1097 | ecb_ctz64 (uint64_t x) |
826 | { |
1098 | { |
|
|
1099 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1100 | unsigned long r; |
|
|
1101 | _BitScanForward64 (&r, x); |
|
|
1102 | return (int)r; |
|
|
1103 | #else |
827 | int shift = x & 0xffffffffU ? 0 : 32; |
1104 | int shift = x & 0xffffffff ? 0 : 32; |
828 | return ecb_ctz32 (x >> shift) + shift; |
1105 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1106 | #endif |
829 | } |
1107 | } |
830 | |
1108 | |
831 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1109 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
832 | ecb_function_ int |
1110 | ecb_function_ ecb_const int |
833 | ecb_popcount32 (uint32_t x) |
1111 | ecb_popcount32 (uint32_t x) |
834 | { |
1112 | { |
835 | x -= (x >> 1) & 0x55555555; |
1113 | x -= (x >> 1) & 0x55555555; |
836 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1114 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
837 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1115 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
838 | x *= 0x01010101; |
1116 | x *= 0x01010101; |
839 | |
1117 | |
840 | return x >> 24; |
1118 | return x >> 24; |
841 | } |
1119 | } |
842 | |
1120 | |
843 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1121 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
844 | ecb_function_ int ecb_ld32 (uint32_t x) |
1122 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
845 | { |
1123 | { |
|
|
1124 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1125 | unsigned long r; |
|
|
1126 | _BitScanReverse (&r, x); |
|
|
1127 | return (int)r; |
|
|
1128 | #else |
846 | int r = 0; |
1129 | int r = 0; |
847 | |
1130 | |
848 | if (x >> 16) { x >>= 16; r += 16; } |
1131 | if (x >> 16) { x >>= 16; r += 16; } |
849 | if (x >> 8) { x >>= 8; r += 8; } |
1132 | if (x >> 8) { x >>= 8; r += 8; } |
850 | if (x >> 4) { x >>= 4; r += 4; } |
1133 | if (x >> 4) { x >>= 4; r += 4; } |
851 | if (x >> 2) { x >>= 2; r += 2; } |
1134 | if (x >> 2) { x >>= 2; r += 2; } |
852 | if (x >> 1) { r += 1; } |
1135 | if (x >> 1) { r += 1; } |
853 | |
1136 | |
854 | return r; |
1137 | return r; |
|
|
1138 | #endif |
855 | } |
1139 | } |
856 | |
1140 | |
857 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1141 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
858 | ecb_function_ int ecb_ld64 (uint64_t x) |
1142 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
859 | { |
1143 | { |
|
|
1144 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1145 | unsigned long r; |
|
|
1146 | _BitScanReverse64 (&r, x); |
|
|
1147 | return (int)r; |
|
|
1148 | #else |
860 | int r = 0; |
1149 | int r = 0; |
861 | |
1150 | |
862 | if (x >> 32) { x >>= 32; r += 32; } |
1151 | if (x >> 32) { x >>= 32; r += 32; } |
863 | |
1152 | |
864 | return r + ecb_ld32 (x); |
1153 | return r + ecb_ld32 (x); |
|
|
1154 | #endif |
865 | } |
1155 | } |
866 | #endif |
1156 | #endif |
867 | |
1157 | |
868 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1158 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
869 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1159 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
870 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1160 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
871 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1161 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
872 | |
1162 | |
873 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1163 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
874 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1164 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
875 | { |
1165 | { |
876 | return ( (x * 0x0802U & 0x22110U) |
1166 | return ( (x * 0x0802U & 0x22110U) |
877 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1167 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
878 | } |
1168 | } |
879 | |
1169 | |
880 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1170 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
881 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1171 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
882 | { |
1172 | { |
883 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1173 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
884 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1174 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
885 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1175 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
886 | x = ( x >> 8 ) | ( x << 8); |
1176 | x = ( x >> 8 ) | ( x << 8); |
887 | |
1177 | |
888 | return x; |
1178 | return x; |
889 | } |
1179 | } |
890 | |
1180 | |
891 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1181 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
892 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1182 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
893 | { |
1183 | { |
894 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1184 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
895 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1185 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
896 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1186 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
897 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1187 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
900 | return x; |
1190 | return x; |
901 | } |
1191 | } |
902 | |
1192 | |
903 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1193 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
904 | /* so for this version we are lazy */ |
1194 | /* so for this version we are lazy */ |
905 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1195 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
906 | ecb_function_ int |
1196 | ecb_function_ ecb_const int |
907 | ecb_popcount64 (uint64_t x) |
1197 | ecb_popcount64 (uint64_t x) |
908 | { |
1198 | { |
909 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1199 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
910 | } |
1200 | } |
911 | |
1201 | |
912 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1202 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
913 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1203 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
914 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1204 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
915 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1205 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
916 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1206 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
917 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1207 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
918 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1208 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
919 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1209 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
920 | |
1210 | |
921 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1211 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
922 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1212 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
923 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1213 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
924 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1214 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
925 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1215 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
926 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1216 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
927 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1217 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
928 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1218 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
929 | |
1219 | |
930 | #if ECB_GCC_VERSION(4,3) |
1220 | #if ECB_CPP |
|
|
1221 | |
|
|
1222 | inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); } |
|
|
1223 | inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); } |
|
|
1224 | inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); } |
|
|
1225 | inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); } |
|
|
1226 | |
|
|
1227 | inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); } |
|
|
1228 | inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); } |
|
|
1229 | inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); } |
|
|
1230 | inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); } |
|
|
1231 | |
|
|
1232 | inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); } |
|
|
1233 | inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); } |
|
|
1234 | inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); } |
|
|
1235 | inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); } |
|
|
1236 | |
|
|
1237 | inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); } |
|
|
1238 | inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); } |
|
|
1239 | inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); } |
|
|
1240 | inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); } |
|
|
1241 | |
|
|
1242 | inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); } |
|
|
1243 | inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); } |
|
|
1244 | inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); } |
|
|
1245 | |
|
|
1246 | inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); } |
|
|
1247 | inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); } |
|
|
1248 | inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); } |
|
|
1249 | inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); } |
|
|
1250 | |
|
|
1251 | inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); } |
|
|
1252 | inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); } |
|
|
1253 | inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); } |
|
|
1254 | inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); } |
|
|
1255 | |
|
|
1256 | #endif |
|
|
1257 | |
|
|
1258 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1259 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1260 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1261 | #else |
931 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1262 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1263 | #endif |
932 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1264 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
933 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1265 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1266 | #elif _MSC_VER |
|
|
1267 | #include <stdlib.h> |
|
|
1268 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1269 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1270 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
934 | #else |
1271 | #else |
935 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1272 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
936 | ecb_function_ uint16_t |
1273 | ecb_function_ ecb_const uint16_t |
937 | ecb_bswap16 (uint16_t x) |
1274 | ecb_bswap16 (uint16_t x) |
938 | { |
1275 | { |
939 | return ecb_rotl16 (x, 8); |
1276 | return ecb_rotl16 (x, 8); |
940 | } |
1277 | } |
941 | |
1278 | |
942 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1279 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
943 | ecb_function_ uint32_t |
1280 | ecb_function_ ecb_const uint32_t |
944 | ecb_bswap32 (uint32_t x) |
1281 | ecb_bswap32 (uint32_t x) |
945 | { |
1282 | { |
946 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1283 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
947 | } |
1284 | } |
948 | |
1285 | |
949 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1286 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
950 | ecb_function_ uint64_t |
1287 | ecb_function_ ecb_const uint64_t |
951 | ecb_bswap64 (uint64_t x) |
1288 | ecb_bswap64 (uint64_t x) |
952 | { |
1289 | { |
953 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1290 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
954 | } |
1291 | } |
955 | #endif |
1292 | #endif |
956 | |
1293 | |
957 | #if ECB_GCC_VERSION(4,5) |
1294 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
958 | #define ecb_unreachable() __builtin_unreachable () |
1295 | #define ecb_unreachable() __builtin_unreachable () |
959 | #else |
1296 | #else |
960 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1297 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
961 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1298 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
962 | ecb_inline void ecb_unreachable (void) { } |
1299 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
963 | #endif |
1300 | #endif |
964 | |
1301 | |
965 | /* try to tell the compiler that some condition is definitely true */ |
1302 | /* try to tell the compiler that some condition is definitely true */ |
966 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1303 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
967 | |
1304 | |
968 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1305 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
969 | ecb_inline unsigned char |
1306 | ecb_inline ecb_const uint32_t |
970 | ecb_byteorder_helper (void) |
1307 | ecb_byteorder_helper (void) |
971 | { |
1308 | { |
972 | /* the union code still generates code under pressure in gcc, */ |
1309 | /* the union code still generates code under pressure in gcc, */ |
973 | /* but less than using pointers, and always seems to */ |
1310 | /* but less than using pointers, and always seems to */ |
974 | /* successfully return a constant. */ |
1311 | /* successfully return a constant. */ |
975 | /* the reason why we have this horrible preprocessor mess */ |
1312 | /* the reason why we have this horrible preprocessor mess */ |
976 | /* is to avoid it in all cases, at least on common architectures */ |
1313 | /* is to avoid it in all cases, at least on common architectures */ |
977 | /* or when using a recent enough gcc version (>= 4.6) */ |
1314 | /* or when using a recent enough gcc version (>= 4.6) */ |
978 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
979 | return 0x44; |
|
|
980 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1315 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1316 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1317 | #define ECB_LITTLE_ENDIAN 1 |
981 | return 0x44; |
1318 | return 0x44332211; |
982 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1319 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1320 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1321 | #define ECB_BIG_ENDIAN 1 |
983 | return 0x11; |
1322 | return 0x11223344; |
984 | #else |
1323 | #else |
985 | union |
1324 | union |
986 | { |
1325 | { |
|
|
1326 | uint8_t c[4]; |
987 | uint32_t i; |
1327 | uint32_t u; |
988 | uint8_t c; |
|
|
989 | } u = { 0x11223344 }; |
1328 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
990 | return u.c; |
1329 | return u.u; |
991 | #endif |
1330 | #endif |
992 | } |
1331 | } |
993 | |
1332 | |
994 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1333 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
995 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1334 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
996 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1335 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
997 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1336 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1337 | |
|
|
1338 | /*****************************************************************************/ |
|
|
1339 | /* unaligned load/store */ |
|
|
1340 | |
|
|
1341 | ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1342 | ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1343 | ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1344 | |
|
|
1345 | ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1346 | ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1347 | ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1348 | |
|
|
1349 | ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1350 | ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1351 | ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1352 | |
|
|
1353 | ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1354 | ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1355 | ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1356 | |
|
|
1357 | ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); } |
|
|
1358 | ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); } |
|
|
1359 | ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); } |
|
|
1360 | |
|
|
1361 | ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; } |
|
|
1362 | ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; } |
|
|
1363 | ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; } |
|
|
1364 | |
|
|
1365 | ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; } |
|
|
1366 | ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; } |
|
|
1367 | ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; } |
|
|
1368 | |
|
|
1369 | ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1370 | ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1371 | ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1372 | |
|
|
1373 | ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); } |
|
|
1374 | ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); } |
|
|
1375 | ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); } |
|
|
1376 | |
|
|
1377 | ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); } |
|
|
1378 | ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); } |
|
|
1379 | ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); } |
|
|
1380 | |
|
|
1381 | #if ECB_CPP |
|
|
1382 | |
|
|
1383 | inline uint8_t ecb_bswap (uint8_t v) { return v; } |
|
|
1384 | inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); } |
|
|
1385 | inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); } |
|
|
1386 | inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); } |
|
|
1387 | |
|
|
1388 | template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1389 | template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1390 | template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; } |
|
|
1391 | template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); } |
|
|
1392 | template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); } |
|
|
1393 | template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; } |
|
|
1394 | template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1395 | template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); } |
|
|
1396 | |
|
|
1397 | template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; } |
|
|
1398 | template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; } |
|
|
1399 | template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; } |
|
|
1400 | template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); } |
|
|
1401 | template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); } |
|
|
1402 | template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); } |
|
|
1403 | template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); } |
|
|
1404 | template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); } |
|
|
1405 | |
|
|
1406 | #endif |
|
|
1407 | |
|
|
1408 | /*****************************************************************************/ |
998 | |
1409 | |
999 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1410 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1000 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1411 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1001 | #else |
1412 | #else |
1002 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1413 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1003 | #endif |
1414 | #endif |
1004 | |
1415 | |
1005 | #if __cplusplus |
1416 | #if ECB_CPP |
1006 | template<typename T> |
1417 | template<typename T> |
1007 | static inline T ecb_div_rd (T val, T div) |
1418 | static inline T ecb_div_rd (T val, T div) |
1008 | { |
1419 | { |
1009 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1420 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1010 | } |
1421 | } |
… | |
… | |
1027 | } |
1438 | } |
1028 | #else |
1439 | #else |
1029 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1440 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1030 | #endif |
1441 | #endif |
1031 | |
1442 | |
|
|
1443 | /*****************************************************************************/ |
|
|
1444 | |
|
|
1445 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1446 | ecb_function_ ecb_const uint32_t |
|
|
1447 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1448 | { |
|
|
1449 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1450 | int e = (x >> 10) & 0x001f; |
|
|
1451 | unsigned int m = x & 0x03ff; |
|
|
1452 | |
|
|
1453 | if (ecb_expect_false (e == 31)) |
|
|
1454 | /* infinity or NaN */ |
|
|
1455 | e = 255 - (127 - 15); |
|
|
1456 | else if (ecb_expect_false (!e)) |
|
|
1457 | { |
|
|
1458 | if (ecb_expect_true (!m)) |
|
|
1459 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1460 | e = 0 - (127 - 15); |
|
|
1461 | else |
|
|
1462 | { |
|
|
1463 | /* subnormal, renormalise */ |
|
|
1464 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1465 | |
|
|
1466 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1467 | e -= s - 1; |
|
|
1468 | } |
|
|
1469 | } |
|
|
1470 | |
|
|
1471 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1472 | e += 127 - 15; |
|
|
1473 | |
|
|
1474 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1478 | ecb_function_ ecb_const uint16_t |
|
|
1479 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1480 | { |
|
|
1481 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1482 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1483 | unsigned int m = x & 0x007fffff; |
|
|
1484 | |
|
|
1485 | x &= 0x7fffffff; |
|
|
1486 | |
|
|
1487 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1488 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1489 | { |
|
|
1490 | /* mantissa round-to-even */ |
|
|
1491 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1492 | |
|
|
1493 | /* handle overflow */ |
|
|
1494 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1495 | { |
|
|
1496 | m >>= 1; |
|
|
1497 | e += 1; |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1501 | } |
|
|
1502 | |
|
|
1503 | /* handle large numbers and infinity */ |
|
|
1504 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1505 | return s | 0x7c00; |
|
|
1506 | |
|
|
1507 | /* handle zero, subnormals and small numbers */ |
|
|
1508 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1509 | { |
|
|
1510 | /* zero */ |
|
|
1511 | if (ecb_expect_true (!x)) |
|
|
1512 | return s; |
|
|
1513 | |
|
|
1514 | /* handle subnormals */ |
|
|
1515 | |
|
|
1516 | /* too small, will be zero */ |
|
|
1517 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1518 | return s; |
|
|
1519 | |
|
|
1520 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1521 | |
|
|
1522 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1523 | { |
|
|
1524 | unsigned int bits = 14 - e; |
|
|
1525 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1526 | unsigned int even = (m >> bits) & 1; |
|
|
1527 | |
|
|
1528 | /* if this overflows, we will end up with a normalised number */ |
|
|
1529 | m = (m + half + even) >> bits; |
|
|
1530 | } |
|
|
1531 | |
|
|
1532 | return s | m; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1536 | m >>= 13; |
|
|
1537 | |
|
|
1538 | return s | 0x7c00 | m | !m; |
|
|
1539 | } |
|
|
1540 | |
1032 | /*******************************************************************************/ |
1541 | /*******************************************************************************/ |
1033 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1542 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1034 | |
1543 | |
1035 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1544 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1036 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1545 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1037 | #if 0 \ |
1546 | #if 0 \ |
1038 | || __i386 || __i386__ \ |
1547 | || __i386 || __i386__ \ |
1039 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1548 | || ECB_GCC_AMD64 \ |
1040 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1549 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1041 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1042 | || defined __s390__ || defined __s390x__ \ |
1550 | || defined __s390__ || defined __s390x__ \ |
1043 | || defined __mips__ \ |
1551 | || defined __mips__ \ |
1044 | || defined __alpha__ \ |
1552 | || defined __alpha__ \ |
1045 | || defined __hppa__ \ |
1553 | || defined __hppa__ \ |
1046 | || defined __ia64__ \ |
1554 | || defined __ia64__ \ |
|
|
1555 | || defined __m68k__ \ |
|
|
1556 | || defined __m88k__ \ |
|
|
1557 | || defined __sh__ \ |
1047 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1558 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1559 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1560 | || defined __aarch64__ |
1048 | #define ECB_STDFP 1 |
1561 | #define ECB_STDFP 1 |
1049 | #include <string.h> /* for memcpy */ |
|
|
1050 | #else |
1562 | #else |
1051 | #define ECB_STDFP 0 |
1563 | #define ECB_STDFP 0 |
1052 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1053 | #endif |
1564 | #endif |
1054 | |
1565 | |
1055 | #ifndef ECB_NO_LIBM |
1566 | #ifndef ECB_NO_LIBM |
1056 | |
1567 | |
|
|
1568 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1569 | |
|
|
1570 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1571 | #ifdef INFINITY |
|
|
1572 | #define ECB_INFINITY INFINITY |
|
|
1573 | #else |
|
|
1574 | #define ECB_INFINITY HUGE_VAL |
|
|
1575 | #endif |
|
|
1576 | |
|
|
1577 | #ifdef NAN |
|
|
1578 | #define ECB_NAN NAN |
|
|
1579 | #else |
|
|
1580 | #define ECB_NAN ECB_INFINITY |
|
|
1581 | #endif |
|
|
1582 | |
|
|
1583 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1584 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1585 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1586 | #else |
|
|
1587 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1588 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1589 | #endif |
|
|
1590 | |
1057 | /* convert a float to ieee single/binary32 */ |
1591 | /* convert a float to ieee single/binary32 */ |
1058 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1592 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1059 | ecb_function_ uint32_t |
1593 | ecb_function_ ecb_const uint32_t |
1060 | ecb_float_to_binary32 (float x) |
1594 | ecb_float_to_binary32 (float x) |
1061 | { |
1595 | { |
1062 | uint32_t r; |
1596 | uint32_t r; |
1063 | |
1597 | |
1064 | #if ECB_STDFP |
1598 | #if ECB_STDFP |
… | |
… | |
1071 | if (x == 0e0f ) return 0x00000000U; |
1605 | if (x == 0e0f ) return 0x00000000U; |
1072 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1606 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1073 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1607 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1074 | if (x != x ) return 0x7fbfffffU; |
1608 | if (x != x ) return 0x7fbfffffU; |
1075 | |
1609 | |
1076 | m = frexpf (x, &e) * 0x1000000U; |
1610 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1077 | |
1611 | |
1078 | r = m & 0x80000000U; |
1612 | r = m & 0x80000000U; |
1079 | |
1613 | |
1080 | if (r) |
1614 | if (r) |
1081 | m = -m; |
1615 | m = -m; |
… | |
… | |
1093 | |
1627 | |
1094 | return r; |
1628 | return r; |
1095 | } |
1629 | } |
1096 | |
1630 | |
1097 | /* converts an ieee single/binary32 to a float */ |
1631 | /* converts an ieee single/binary32 to a float */ |
1098 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1632 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1099 | ecb_function_ float |
1633 | ecb_function_ ecb_const float |
1100 | ecb_binary32_to_float (uint32_t x) |
1634 | ecb_binary32_to_float (uint32_t x) |
1101 | { |
1635 | { |
1102 | float r; |
1636 | float r; |
1103 | |
1637 | |
1104 | #if ECB_STDFP |
1638 | #if ECB_STDFP |
… | |
… | |
1114 | x |= 0x800000U; |
1648 | x |= 0x800000U; |
1115 | else |
1649 | else |
1116 | e = 1; |
1650 | e = 1; |
1117 | |
1651 | |
1118 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1652 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1119 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1653 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1120 | |
1654 | |
1121 | r = neg ? -r : r; |
1655 | r = neg ? -r : r; |
1122 | #endif |
1656 | #endif |
1123 | |
1657 | |
1124 | return r; |
1658 | return r; |
1125 | } |
1659 | } |
1126 | |
1660 | |
1127 | /* convert a double to ieee double/binary64 */ |
1661 | /* convert a double to ieee double/binary64 */ |
1128 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1662 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1129 | ecb_function_ uint64_t |
1663 | ecb_function_ ecb_const uint64_t |
1130 | ecb_double_to_binary64 (double x) |
1664 | ecb_double_to_binary64 (double x) |
1131 | { |
1665 | { |
1132 | uint64_t r; |
1666 | uint64_t r; |
1133 | |
1667 | |
1134 | #if ECB_STDFP |
1668 | #if ECB_STDFP |
… | |
… | |
1163 | |
1697 | |
1164 | return r; |
1698 | return r; |
1165 | } |
1699 | } |
1166 | |
1700 | |
1167 | /* converts an ieee double/binary64 to a double */ |
1701 | /* converts an ieee double/binary64 to a double */ |
1168 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1702 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1169 | ecb_function_ double |
1703 | ecb_function_ ecb_const double |
1170 | ecb_binary64_to_double (uint64_t x) |
1704 | ecb_binary64_to_double (uint64_t x) |
1171 | { |
1705 | { |
1172 | double r; |
1706 | double r; |
1173 | |
1707 | |
1174 | #if ECB_STDFP |
1708 | #if ECB_STDFP |
… | |
… | |
1192 | #endif |
1726 | #endif |
1193 | |
1727 | |
1194 | return r; |
1728 | return r; |
1195 | } |
1729 | } |
1196 | |
1730 | |
|
|
1731 | /* convert a float to ieee half/binary16 */ |
|
|
1732 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1733 | ecb_function_ ecb_const uint16_t |
|
|
1734 | ecb_float_to_binary16 (float x) |
|
|
1735 | { |
|
|
1736 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | /* convert an ieee half/binary16 to float */ |
|
|
1740 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1741 | ecb_function_ ecb_const float |
|
|
1742 | ecb_binary16_to_float (uint16_t x) |
|
|
1743 | { |
|
|
1744 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1745 | } |
|
|
1746 | |
1197 | #endif |
1747 | #endif |
1198 | |
1748 | |
1199 | #endif |
1749 | #endif |
1200 | |
1750 | |
1201 | /* ECB.H END */ |
1751 | /* ECB.H END */ |
1202 | |
1752 | |
1203 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1753 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1204 | /* if your architecture doesn't need memory fences, e.g. because it is |
1754 | /* if your architecture doesn't need memory fences, e.g. because it is |
1205 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1755 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
1206 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
1756 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
1207 | * libev, in which cases the memory fences become nops. |
1757 | * libev, in which cases the memory fences become nops. |
1208 | * alternatively, you can remove this #error and link against libpthread, |
1758 | * alternatively, you can remove this #error and link against libpthread, |
1209 | * which will then provide the memory fences. |
1759 | * which will then provide the memory fences. |
1210 | */ |
1760 | */ |
1211 | # error "memory fences not defined for your architecture, please report" |
1761 | # error "memory fences not defined for your architecture, please report" |
… | |
… | |
1215 | # define ECB_MEMORY_FENCE do { } while (0) |
1765 | # define ECB_MEMORY_FENCE do { } while (0) |
1216 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1766 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
1217 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1767 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
1218 | #endif |
1768 | #endif |
1219 | |
1769 | |
1220 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1221 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1222 | #define noinline ecb_noinline |
|
|
1223 | |
|
|
1224 | #define inline_size ecb_inline |
1770 | #define inline_size ecb_inline |
1225 | |
1771 | |
1226 | #if EV_FEATURE_CODE |
1772 | #if EV_FEATURE_CODE |
1227 | # define inline_speed ecb_inline |
1773 | # define inline_speed ecb_inline |
1228 | #else |
1774 | #else |
1229 | # define inline_speed static noinline |
1775 | # define inline_speed ecb_noinline static |
1230 | #endif |
1776 | #endif |
|
|
1777 | |
|
|
1778 | /*****************************************************************************/ |
|
|
1779 | /* raw syscall wrappers */ |
|
|
1780 | |
|
|
1781 | #if EV_NEED_SYSCALL |
|
|
1782 | |
|
|
1783 | #include <sys/syscall.h> |
|
|
1784 | |
|
|
1785 | /* |
|
|
1786 | * define some syscall wrappers for common architectures |
|
|
1787 | * this is mostly for nice looks during debugging, not performance. |
|
|
1788 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1789 | * enough for linux aio. |
|
|
1790 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1791 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1792 | */ |
|
|
1793 | #if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE |
|
|
1794 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1795 | |
|
|
1796 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1797 | ({ \ |
|
|
1798 | long res; \ |
|
|
1799 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1800 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1801 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1802 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1803 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1804 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1805 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1806 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1807 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1808 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1809 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1810 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1811 | __asm__ __volatile__ ( \ |
|
|
1812 | "syscall\n\t" \ |
|
|
1813 | : "=a" (res) \ |
|
|
1814 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1815 | : "cc", "r11", "cx", "memory"); \ |
|
|
1816 | errno = -res; \ |
|
|
1817 | res; \ |
|
|
1818 | }) |
|
|
1819 | |
|
|
1820 | #endif |
|
|
1821 | |
|
|
1822 | #ifdef ev_syscall |
|
|
1823 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1824 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1825 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1826 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1827 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1828 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1829 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1830 | #else |
|
|
1831 | #define ev_syscall0(nr) syscall (nr) |
|
|
1832 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1833 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1834 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1835 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1836 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1837 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1838 | #endif |
|
|
1839 | |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | /*****************************************************************************/ |
1231 | |
1843 | |
1232 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1844 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1233 | |
1845 | |
1234 | #if EV_MINPRI == EV_MAXPRI |
1846 | #if EV_MINPRI == EV_MAXPRI |
1235 | # define ABSPRI(w) (((W)w), 0) |
1847 | # define ABSPRI(w) (((W)w), 0) |
1236 | #else |
1848 | #else |
1237 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1849 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1238 | #endif |
1850 | #endif |
1239 | |
1851 | |
1240 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1852 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1241 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1242 | |
1853 | |
1243 | typedef ev_watcher *W; |
1854 | typedef ev_watcher *W; |
1244 | typedef ev_watcher_list *WL; |
1855 | typedef ev_watcher_list *WL; |
1245 | typedef ev_watcher_time *WT; |
1856 | typedef ev_watcher_time *WT; |
1246 | |
1857 | |
… | |
… | |
1271 | # include "ev_win32.c" |
1882 | # include "ev_win32.c" |
1272 | #endif |
1883 | #endif |
1273 | |
1884 | |
1274 | /*****************************************************************************/ |
1885 | /*****************************************************************************/ |
1275 | |
1886 | |
|
|
1887 | #if EV_USE_LINUXAIO |
|
|
1888 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1889 | #endif |
|
|
1890 | |
1276 | /* define a suitable floor function (only used by periodics atm) */ |
1891 | /* define a suitable floor function (only used by periodics atm) */ |
1277 | |
1892 | |
1278 | #if EV_USE_FLOOR |
1893 | #if EV_USE_FLOOR |
1279 | # include <math.h> |
1894 | # include <math.h> |
1280 | # define ev_floor(v) floor (v) |
1895 | # define ev_floor(v) floor (v) |
1281 | #else |
1896 | #else |
1282 | |
1897 | |
1283 | #include <float.h> |
1898 | #include <float.h> |
1284 | |
1899 | |
1285 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1900 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1901 | ecb_noinline |
1286 | static ev_tstamp noinline |
1902 | static ev_tstamp |
1287 | ev_floor (ev_tstamp v) |
1903 | ev_floor (ev_tstamp v) |
1288 | { |
1904 | { |
1289 | /* the choice of shift factor is not terribly important */ |
1905 | /* the choice of shift factor is not terribly important */ |
1290 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1906 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1291 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1907 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1292 | #else |
1908 | #else |
1293 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1909 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
1294 | #endif |
1910 | #endif |
1295 | |
1911 | |
|
|
1912 | /* special treatment for negative arguments */ |
|
|
1913 | if (ecb_expect_false (v < 0.)) |
|
|
1914 | { |
|
|
1915 | ev_tstamp f = -ev_floor (-v); |
|
|
1916 | |
|
|
1917 | return f - (f == v ? 0 : 1); |
|
|
1918 | } |
|
|
1919 | |
1296 | /* argument too large for an unsigned long? */ |
1920 | /* argument too large for an unsigned long? then reduce it */ |
1297 | if (expect_false (v >= shift)) |
1921 | if (ecb_expect_false (v >= shift)) |
1298 | { |
1922 | { |
1299 | ev_tstamp f; |
1923 | ev_tstamp f; |
1300 | |
1924 | |
1301 | if (v == v - 1.) |
1925 | if (v == v - 1.) |
1302 | return v; /* very large number */ |
1926 | return v; /* very large numbers are assumed to be integer */ |
1303 | |
1927 | |
1304 | f = shift * ev_floor (v * (1. / shift)); |
1928 | f = shift * ev_floor (v * (1. / shift)); |
1305 | return f + ev_floor (v - f); |
1929 | return f + ev_floor (v - f); |
1306 | } |
1930 | } |
1307 | |
1931 | |
1308 | /* special treatment for negative args? */ |
|
|
1309 | if (expect_false (v < 0.)) |
|
|
1310 | { |
|
|
1311 | ev_tstamp f = -ev_floor (-v); |
|
|
1312 | |
|
|
1313 | return f - (f == v ? 0 : 1); |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | /* fits into an unsigned long */ |
1932 | /* fits into an unsigned long */ |
1317 | return (unsigned long)v; |
1933 | return (unsigned long)v; |
1318 | } |
1934 | } |
1319 | |
1935 | |
1320 | #endif |
1936 | #endif |
… | |
… | |
1323 | |
1939 | |
1324 | #ifdef __linux |
1940 | #ifdef __linux |
1325 | # include <sys/utsname.h> |
1941 | # include <sys/utsname.h> |
1326 | #endif |
1942 | #endif |
1327 | |
1943 | |
1328 | static unsigned int noinline ecb_cold |
1944 | ecb_noinline ecb_cold |
|
|
1945 | static unsigned int |
1329 | ev_linux_version (void) |
1946 | ev_linux_version (void) |
1330 | { |
1947 | { |
1331 | #ifdef __linux |
1948 | #ifdef __linux |
1332 | unsigned int v = 0; |
1949 | unsigned int v = 0; |
1333 | struct utsname buf; |
1950 | struct utsname buf; |
… | |
… | |
1362 | } |
1979 | } |
1363 | |
1980 | |
1364 | /*****************************************************************************/ |
1981 | /*****************************************************************************/ |
1365 | |
1982 | |
1366 | #if EV_AVOID_STDIO |
1983 | #if EV_AVOID_STDIO |
1367 | static void noinline ecb_cold |
1984 | ecb_noinline ecb_cold |
|
|
1985 | static void |
1368 | ev_printerr (const char *msg) |
1986 | ev_printerr (const char *msg) |
1369 | { |
1987 | { |
1370 | write (STDERR_FILENO, msg, strlen (msg)); |
1988 | write (STDERR_FILENO, msg, strlen (msg)); |
1371 | } |
1989 | } |
1372 | #endif |
1990 | #endif |
1373 | |
1991 | |
1374 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1992 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1375 | |
1993 | |
1376 | void ecb_cold |
1994 | ecb_cold |
|
|
1995 | void |
1377 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1996 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1378 | { |
1997 | { |
1379 | syserr_cb = cb; |
1998 | syserr_cb = cb; |
1380 | } |
1999 | } |
1381 | |
2000 | |
1382 | static void noinline ecb_cold |
2001 | ecb_noinline ecb_cold |
|
|
2002 | static void |
1383 | ev_syserr (const char *msg) |
2003 | ev_syserr (const char *msg) |
1384 | { |
2004 | { |
1385 | if (!msg) |
2005 | if (!msg) |
1386 | msg = "(libev) system error"; |
2006 | msg = "(libev) system error"; |
1387 | |
2007 | |
… | |
… | |
1400 | abort (); |
2020 | abort (); |
1401 | } |
2021 | } |
1402 | } |
2022 | } |
1403 | |
2023 | |
1404 | static void * |
2024 | static void * |
1405 | ev_realloc_emul (void *ptr, long size) EV_THROW |
2025 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1406 | { |
2026 | { |
1407 | /* some systems, notably openbsd and darwin, fail to properly |
2027 | /* some systems, notably openbsd and darwin, fail to properly |
1408 | * implement realloc (x, 0) (as required by both ansi c-89 and |
2028 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1409 | * the single unix specification, so work around them here. |
2029 | * the single unix specification, so work around them here. |
1410 | * recently, also (at least) fedora and debian started breaking it, |
2030 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1416 | |
2036 | |
1417 | free (ptr); |
2037 | free (ptr); |
1418 | return 0; |
2038 | return 0; |
1419 | } |
2039 | } |
1420 | |
2040 | |
1421 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
2041 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1422 | |
2042 | |
1423 | void ecb_cold |
2043 | ecb_cold |
|
|
2044 | void |
1424 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
2045 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1425 | { |
2046 | { |
1426 | alloc = cb; |
2047 | alloc = cb; |
1427 | } |
2048 | } |
1428 | |
2049 | |
1429 | inline_speed void * |
2050 | inline_speed void * |
… | |
… | |
1456 | typedef struct |
2077 | typedef struct |
1457 | { |
2078 | { |
1458 | WL head; |
2079 | WL head; |
1459 | unsigned char events; /* the events watched for */ |
2080 | unsigned char events; /* the events watched for */ |
1460 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
2081 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1461 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
2082 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1462 | unsigned char unused; |
2083 | unsigned char eflags; /* flags field for use by backends */ |
1463 | #if EV_USE_EPOLL |
2084 | #if EV_USE_EPOLL |
1464 | unsigned int egen; /* generation counter to counter epoll bugs */ |
2085 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1465 | #endif |
2086 | #endif |
1466 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2087 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1467 | SOCKET handle; |
2088 | SOCKET handle; |
… | |
… | |
1521 | static struct ev_loop default_loop_struct; |
2142 | static struct ev_loop default_loop_struct; |
1522 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
2143 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
1523 | |
2144 | |
1524 | #else |
2145 | #else |
1525 | |
2146 | |
1526 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
2147 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
1527 | #define VAR(name,decl) static decl; |
2148 | #define VAR(name,decl) static decl; |
1528 | #include "ev_vars.h" |
2149 | #include "ev_vars.h" |
1529 | #undef VAR |
2150 | #undef VAR |
1530 | |
2151 | |
1531 | static int ev_default_loop_ptr; |
2152 | static int ev_default_loop_ptr; |
1532 | |
2153 | |
1533 | #endif |
2154 | #endif |
1534 | |
2155 | |
1535 | #if EV_FEATURE_API |
2156 | #if EV_FEATURE_API |
1536 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
2157 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
1537 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
2158 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
1538 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
2159 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
1539 | #else |
2160 | #else |
1540 | # define EV_RELEASE_CB (void)0 |
2161 | # define EV_RELEASE_CB (void)0 |
1541 | # define EV_ACQUIRE_CB (void)0 |
2162 | # define EV_ACQUIRE_CB (void)0 |
1542 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
2163 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
… | |
… | |
1546 | |
2167 | |
1547 | /*****************************************************************************/ |
2168 | /*****************************************************************************/ |
1548 | |
2169 | |
1549 | #ifndef EV_HAVE_EV_TIME |
2170 | #ifndef EV_HAVE_EV_TIME |
1550 | ev_tstamp |
2171 | ev_tstamp |
1551 | ev_time (void) EV_THROW |
2172 | ev_time (void) EV_NOEXCEPT |
1552 | { |
2173 | { |
1553 | #if EV_USE_REALTIME |
2174 | #if EV_USE_REALTIME |
1554 | if (expect_true (have_realtime)) |
2175 | if (ecb_expect_true (have_realtime)) |
1555 | { |
2176 | { |
1556 | struct timespec ts; |
2177 | struct timespec ts; |
1557 | clock_gettime (CLOCK_REALTIME, &ts); |
2178 | clock_gettime (CLOCK_REALTIME, &ts); |
1558 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2179 | return EV_TS_GET (ts); |
1559 | } |
2180 | } |
1560 | #endif |
2181 | #endif |
1561 | |
2182 | |
|
|
2183 | { |
1562 | struct timeval tv; |
2184 | struct timeval tv; |
1563 | gettimeofday (&tv, 0); |
2185 | gettimeofday (&tv, 0); |
1564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2186 | return EV_TV_GET (tv); |
|
|
2187 | } |
1565 | } |
2188 | } |
1566 | #endif |
2189 | #endif |
1567 | |
2190 | |
1568 | inline_size ev_tstamp |
2191 | inline_size ev_tstamp |
1569 | get_clock (void) |
2192 | get_clock (void) |
1570 | { |
2193 | { |
1571 | #if EV_USE_MONOTONIC |
2194 | #if EV_USE_MONOTONIC |
1572 | if (expect_true (have_monotonic)) |
2195 | if (ecb_expect_true (have_monotonic)) |
1573 | { |
2196 | { |
1574 | struct timespec ts; |
2197 | struct timespec ts; |
1575 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2198 | clock_gettime (CLOCK_MONOTONIC, &ts); |
1576 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2199 | return EV_TS_GET (ts); |
1577 | } |
2200 | } |
1578 | #endif |
2201 | #endif |
1579 | |
2202 | |
1580 | return ev_time (); |
2203 | return ev_time (); |
1581 | } |
2204 | } |
1582 | |
2205 | |
1583 | #if EV_MULTIPLICITY |
2206 | #if EV_MULTIPLICITY |
1584 | ev_tstamp |
2207 | ev_tstamp |
1585 | ev_now (EV_P) EV_THROW |
2208 | ev_now (EV_P) EV_NOEXCEPT |
1586 | { |
2209 | { |
1587 | return ev_rt_now; |
2210 | return ev_rt_now; |
1588 | } |
2211 | } |
1589 | #endif |
2212 | #endif |
1590 | |
2213 | |
1591 | void |
2214 | void |
1592 | ev_sleep (ev_tstamp delay) EV_THROW |
2215 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1593 | { |
2216 | { |
1594 | if (delay > 0.) |
2217 | if (delay > EV_TS_CONST (0.)) |
1595 | { |
2218 | { |
1596 | #if EV_USE_NANOSLEEP |
2219 | #if EV_USE_NANOSLEEP |
1597 | struct timespec ts; |
2220 | struct timespec ts; |
1598 | |
2221 | |
1599 | EV_TS_SET (ts, delay); |
2222 | EV_TS_SET (ts, delay); |
1600 | nanosleep (&ts, 0); |
2223 | nanosleep (&ts, 0); |
1601 | #elif defined _WIN32 |
2224 | #elif defined _WIN32 |
|
|
2225 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2226 | /* compared to select (µs) or nanosleep (ns) */ |
1602 | Sleep ((unsigned long)(delay * 1e3)); |
2227 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
1603 | #else |
2228 | #else |
1604 | struct timeval tv; |
2229 | struct timeval tv; |
1605 | |
2230 | |
1606 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2231 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1607 | /* something not guaranteed by newer posix versions, but guaranteed */ |
2232 | /* something not guaranteed by newer posix versions, but guaranteed */ |
… | |
… | |
1637 | } |
2262 | } |
1638 | |
2263 | |
1639 | return ncur; |
2264 | return ncur; |
1640 | } |
2265 | } |
1641 | |
2266 | |
1642 | static void * noinline ecb_cold |
2267 | ecb_noinline ecb_cold |
|
|
2268 | static void * |
1643 | array_realloc (int elem, void *base, int *cur, int cnt) |
2269 | array_realloc (int elem, void *base, int *cur, int cnt) |
1644 | { |
2270 | { |
1645 | *cur = array_nextsize (elem, *cur, cnt); |
2271 | *cur = array_nextsize (elem, *cur, cnt); |
1646 | return ev_realloc (base, elem * *cur); |
2272 | return ev_realloc (base, elem * *cur); |
1647 | } |
2273 | } |
1648 | |
2274 | |
|
|
2275 | #define array_needsize_noinit(base,offset,count) |
|
|
2276 | |
1649 | #define array_init_zero(base,count) \ |
2277 | #define array_needsize_zerofill(base,offset,count) \ |
1650 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2278 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1651 | |
2279 | |
1652 | #define array_needsize(type,base,cur,cnt,init) \ |
2280 | #define array_needsize(type,base,cur,cnt,init) \ |
1653 | if (expect_false ((cnt) > (cur))) \ |
2281 | if (ecb_expect_false ((cnt) > (cur))) \ |
1654 | { \ |
2282 | { \ |
1655 | int ecb_unused ocur_ = (cur); \ |
2283 | ecb_unused int ocur_ = (cur); \ |
1656 | (base) = (type *)array_realloc \ |
2284 | (base) = (type *)array_realloc \ |
1657 | (sizeof (type), (base), &(cur), (cnt)); \ |
2285 | (sizeof (type), (base), &(cur), (cnt)); \ |
1658 | init ((base) + (ocur_), (cur) - ocur_); \ |
2286 | init ((base), ocur_, ((cur) - ocur_)); \ |
1659 | } |
2287 | } |
1660 | |
2288 | |
1661 | #if 0 |
2289 | #if 0 |
1662 | #define array_slim(type,stem) \ |
2290 | #define array_slim(type,stem) \ |
1663 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2291 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1672 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2300 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1673 | |
2301 | |
1674 | /*****************************************************************************/ |
2302 | /*****************************************************************************/ |
1675 | |
2303 | |
1676 | /* dummy callback for pending events */ |
2304 | /* dummy callback for pending events */ |
1677 | static void noinline |
2305 | ecb_noinline |
|
|
2306 | static void |
1678 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2307 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1679 | { |
2308 | { |
1680 | } |
2309 | } |
1681 | |
2310 | |
1682 | void noinline |
2311 | ecb_noinline |
|
|
2312 | void |
1683 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2313 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1684 | { |
2314 | { |
1685 | W w_ = (W)w; |
2315 | W w_ = (W)w; |
1686 | int pri = ABSPRI (w_); |
2316 | int pri = ABSPRI (w_); |
1687 | |
2317 | |
1688 | if (expect_false (w_->pending)) |
2318 | if (ecb_expect_false (w_->pending)) |
1689 | pendings [pri][w_->pending - 1].events |= revents; |
2319 | pendings [pri][w_->pending - 1].events |= revents; |
1690 | else |
2320 | else |
1691 | { |
2321 | { |
1692 | w_->pending = ++pendingcnt [pri]; |
2322 | w_->pending = ++pendingcnt [pri]; |
1693 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2323 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1694 | pendings [pri][w_->pending - 1].w = w_; |
2324 | pendings [pri][w_->pending - 1].w = w_; |
1695 | pendings [pri][w_->pending - 1].events = revents; |
2325 | pendings [pri][w_->pending - 1].events = revents; |
1696 | } |
2326 | } |
1697 | |
2327 | |
1698 | pendingpri = NUMPRI - 1; |
2328 | pendingpri = NUMPRI - 1; |
1699 | } |
2329 | } |
1700 | |
2330 | |
1701 | inline_speed void |
2331 | inline_speed void |
1702 | feed_reverse (EV_P_ W w) |
2332 | feed_reverse (EV_P_ W w) |
1703 | { |
2333 | { |
1704 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2334 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1705 | rfeeds [rfeedcnt++] = w; |
2335 | rfeeds [rfeedcnt++] = w; |
1706 | } |
2336 | } |
1707 | |
2337 | |
1708 | inline_size void |
2338 | inline_size void |
1709 | feed_reverse_done (EV_P_ int revents) |
2339 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1744 | inline_speed void |
2374 | inline_speed void |
1745 | fd_event (EV_P_ int fd, int revents) |
2375 | fd_event (EV_P_ int fd, int revents) |
1746 | { |
2376 | { |
1747 | ANFD *anfd = anfds + fd; |
2377 | ANFD *anfd = anfds + fd; |
1748 | |
2378 | |
1749 | if (expect_true (!anfd->reify)) |
2379 | if (ecb_expect_true (!anfd->reify)) |
1750 | fd_event_nocheck (EV_A_ fd, revents); |
2380 | fd_event_nocheck (EV_A_ fd, revents); |
1751 | } |
2381 | } |
1752 | |
2382 | |
1753 | void |
2383 | void |
1754 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2384 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1755 | { |
2385 | { |
1756 | if (fd >= 0 && fd < anfdmax) |
2386 | if (fd >= 0 && fd < anfdmax) |
1757 | fd_event_nocheck (EV_A_ fd, revents); |
2387 | fd_event_nocheck (EV_A_ fd, revents); |
1758 | } |
2388 | } |
1759 | |
2389 | |
… | |
… | |
1762 | inline_size void |
2392 | inline_size void |
1763 | fd_reify (EV_P) |
2393 | fd_reify (EV_P) |
1764 | { |
2394 | { |
1765 | int i; |
2395 | int i; |
1766 | |
2396 | |
|
|
2397 | /* most backends do not modify the fdchanges list in backend_modfiy. |
|
|
2398 | * except io_uring, which has fixed-size buffers which might force us |
|
|
2399 | * to handle events in backend_modify, causing fdchanges to be amended, |
|
|
2400 | * which could result in an endless loop. |
|
|
2401 | * to avoid this, we do not dynamically handle fds that were added |
|
|
2402 | * during fd_reify. that means that for those backends, fdchangecnt |
|
|
2403 | * might be non-zero during poll, which must cause them to not block. |
|
|
2404 | * to not put too much of a burden on other backends, this detail |
|
|
2405 | * needs to be handled in the backend. |
|
|
2406 | */ |
|
|
2407 | int changecnt = fdchangecnt; |
|
|
2408 | |
1767 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
2409 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1768 | for (i = 0; i < fdchangecnt; ++i) |
2410 | for (i = 0; i < changecnt; ++i) |
1769 | { |
2411 | { |
1770 | int fd = fdchanges [i]; |
2412 | int fd = fdchanges [i]; |
1771 | ANFD *anfd = anfds + fd; |
2413 | ANFD *anfd = anfds + fd; |
1772 | |
2414 | |
1773 | if (anfd->reify & EV__IOFDSET && anfd->head) |
2415 | if (anfd->reify & EV__IOFDSET && anfd->head) |
… | |
… | |
1787 | } |
2429 | } |
1788 | } |
2430 | } |
1789 | } |
2431 | } |
1790 | #endif |
2432 | #endif |
1791 | |
2433 | |
1792 | for (i = 0; i < fdchangecnt; ++i) |
2434 | for (i = 0; i < changecnt; ++i) |
1793 | { |
2435 | { |
1794 | int fd = fdchanges [i]; |
2436 | int fd = fdchanges [i]; |
1795 | ANFD *anfd = anfds + fd; |
2437 | ANFD *anfd = anfds + fd; |
1796 | ev_io *w; |
2438 | ev_io *w; |
1797 | |
2439 | |
1798 | unsigned char o_events = anfd->events; |
2440 | unsigned char o_events = anfd->events; |
1799 | unsigned char o_reify = anfd->reify; |
2441 | unsigned char o_reify = anfd->reify; |
1800 | |
2442 | |
1801 | anfd->reify = 0; |
2443 | anfd->reify = 0; |
1802 | |
2444 | |
1803 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2445 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1804 | { |
2446 | { |
1805 | anfd->events = 0; |
2447 | anfd->events = 0; |
1806 | |
2448 | |
1807 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2449 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1808 | anfd->events |= (unsigned char)w->events; |
2450 | anfd->events |= (unsigned char)w->events; |
… | |
… | |
1813 | |
2455 | |
1814 | if (o_reify & EV__IOFDSET) |
2456 | if (o_reify & EV__IOFDSET) |
1815 | backend_modify (EV_A_ fd, o_events, anfd->events); |
2457 | backend_modify (EV_A_ fd, o_events, anfd->events); |
1816 | } |
2458 | } |
1817 | |
2459 | |
|
|
2460 | /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added. |
|
|
2461 | * this is a rare case (see beginning comment in this function), so we copy them to the |
|
|
2462 | * front and hope the backend handles this case. |
|
|
2463 | */ |
|
|
2464 | if (ecb_expect_false (fdchangecnt != changecnt)) |
|
|
2465 | memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges)); |
|
|
2466 | |
1818 | fdchangecnt = 0; |
2467 | fdchangecnt -= changecnt; |
1819 | } |
2468 | } |
1820 | |
2469 | |
1821 | /* something about the given fd changed */ |
2470 | /* something about the given fd changed */ |
1822 | inline_size void |
2471 | inline_size |
|
|
2472 | void |
1823 | fd_change (EV_P_ int fd, int flags) |
2473 | fd_change (EV_P_ int fd, int flags) |
1824 | { |
2474 | { |
1825 | unsigned char reify = anfds [fd].reify; |
2475 | unsigned char reify = anfds [fd].reify; |
1826 | anfds [fd].reify |= flags; |
2476 | anfds [fd].reify |= flags; |
1827 | |
2477 | |
1828 | if (expect_true (!reify)) |
2478 | if (ecb_expect_true (!reify)) |
1829 | { |
2479 | { |
1830 | ++fdchangecnt; |
2480 | ++fdchangecnt; |
1831 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2481 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1832 | fdchanges [fdchangecnt - 1] = fd; |
2482 | fdchanges [fdchangecnt - 1] = fd; |
1833 | } |
2483 | } |
1834 | } |
2484 | } |
1835 | |
2485 | |
1836 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2486 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1837 | inline_speed void ecb_cold |
2487 | inline_speed ecb_cold void |
1838 | fd_kill (EV_P_ int fd) |
2488 | fd_kill (EV_P_ int fd) |
1839 | { |
2489 | { |
1840 | ev_io *w; |
2490 | ev_io *w; |
1841 | |
2491 | |
1842 | while ((w = (ev_io *)anfds [fd].head)) |
2492 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1845 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2495 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1846 | } |
2496 | } |
1847 | } |
2497 | } |
1848 | |
2498 | |
1849 | /* check whether the given fd is actually valid, for error recovery */ |
2499 | /* check whether the given fd is actually valid, for error recovery */ |
1850 | inline_size int ecb_cold |
2500 | inline_size ecb_cold int |
1851 | fd_valid (int fd) |
2501 | fd_valid (int fd) |
1852 | { |
2502 | { |
1853 | #ifdef _WIN32 |
2503 | #ifdef _WIN32 |
1854 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2504 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1855 | #else |
2505 | #else |
1856 | return fcntl (fd, F_GETFD) != -1; |
2506 | return fcntl (fd, F_GETFD) != -1; |
1857 | #endif |
2507 | #endif |
1858 | } |
2508 | } |
1859 | |
2509 | |
1860 | /* called on EBADF to verify fds */ |
2510 | /* called on EBADF to verify fds */ |
1861 | static void noinline ecb_cold |
2511 | ecb_noinline ecb_cold |
|
|
2512 | static void |
1862 | fd_ebadf (EV_P) |
2513 | fd_ebadf (EV_P) |
1863 | { |
2514 | { |
1864 | int fd; |
2515 | int fd; |
1865 | |
2516 | |
1866 | for (fd = 0; fd < anfdmax; ++fd) |
2517 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1868 | if (!fd_valid (fd) && errno == EBADF) |
2519 | if (!fd_valid (fd) && errno == EBADF) |
1869 | fd_kill (EV_A_ fd); |
2520 | fd_kill (EV_A_ fd); |
1870 | } |
2521 | } |
1871 | |
2522 | |
1872 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2523 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1873 | static void noinline ecb_cold |
2524 | ecb_noinline ecb_cold |
|
|
2525 | static void |
1874 | fd_enomem (EV_P) |
2526 | fd_enomem (EV_P) |
1875 | { |
2527 | { |
1876 | int fd; |
2528 | int fd; |
1877 | |
2529 | |
1878 | for (fd = anfdmax; fd--; ) |
2530 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1882 | break; |
2534 | break; |
1883 | } |
2535 | } |
1884 | } |
2536 | } |
1885 | |
2537 | |
1886 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2538 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1887 | static void noinline |
2539 | ecb_noinline |
|
|
2540 | static void |
1888 | fd_rearm_all (EV_P) |
2541 | fd_rearm_all (EV_P) |
1889 | { |
2542 | { |
1890 | int fd; |
2543 | int fd; |
1891 | |
2544 | |
1892 | for (fd = 0; fd < anfdmax; ++fd) |
2545 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1945 | ev_tstamp minat; |
2598 | ev_tstamp minat; |
1946 | ANHE *minpos; |
2599 | ANHE *minpos; |
1947 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2600 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
1948 | |
2601 | |
1949 | /* find minimum child */ |
2602 | /* find minimum child */ |
1950 | if (expect_true (pos + DHEAP - 1 < E)) |
2603 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
1951 | { |
2604 | { |
1952 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2605 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1953 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2606 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1954 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2607 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1955 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2608 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1956 | } |
2609 | } |
1957 | else if (pos < E) |
2610 | else if (pos < E) |
1958 | { |
2611 | { |
1959 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2612 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
1960 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2613 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
1961 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2614 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
1962 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2615 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
1963 | } |
2616 | } |
1964 | else |
2617 | else |
1965 | break; |
2618 | break; |
1966 | |
2619 | |
1967 | if (ANHE_at (he) <= minat) |
2620 | if (ANHE_at (he) <= minat) |
… | |
… | |
1975 | |
2628 | |
1976 | heap [k] = he; |
2629 | heap [k] = he; |
1977 | ev_active (ANHE_w (he)) = k; |
2630 | ev_active (ANHE_w (he)) = k; |
1978 | } |
2631 | } |
1979 | |
2632 | |
1980 | #else /* 4HEAP */ |
2633 | #else /* not 4HEAP */ |
1981 | |
2634 | |
1982 | #define HEAP0 1 |
2635 | #define HEAP0 1 |
1983 | #define HPARENT(k) ((k) >> 1) |
2636 | #define HPARENT(k) ((k) >> 1) |
1984 | #define UPHEAP_DONE(p,k) (!(p)) |
2637 | #define UPHEAP_DONE(p,k) (!(p)) |
1985 | |
2638 | |
… | |
… | |
2057 | upheap (heap, i + HEAP0); |
2710 | upheap (heap, i + HEAP0); |
2058 | } |
2711 | } |
2059 | |
2712 | |
2060 | /*****************************************************************************/ |
2713 | /*****************************************************************************/ |
2061 | |
2714 | |
2062 | /* associate signal watchers to a signal signal */ |
2715 | /* associate signal watchers to a signal */ |
2063 | typedef struct |
2716 | typedef struct |
2064 | { |
2717 | { |
2065 | EV_ATOMIC_T pending; |
2718 | EV_ATOMIC_T pending; |
2066 | #if EV_MULTIPLICITY |
2719 | #if EV_MULTIPLICITY |
2067 | EV_P; |
2720 | EV_P; |
… | |
… | |
2073 | |
2726 | |
2074 | /*****************************************************************************/ |
2727 | /*****************************************************************************/ |
2075 | |
2728 | |
2076 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2729 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2077 | |
2730 | |
2078 | static void noinline ecb_cold |
2731 | ecb_noinline ecb_cold |
|
|
2732 | static void |
2079 | evpipe_init (EV_P) |
2733 | evpipe_init (EV_P) |
2080 | { |
2734 | { |
2081 | if (!ev_is_active (&pipe_w)) |
2735 | if (!ev_is_active (&pipe_w)) |
2082 | { |
2736 | { |
2083 | int fds [2]; |
2737 | int fds [2]; |
… | |
… | |
2094 | while (pipe (fds)) |
2748 | while (pipe (fds)) |
2095 | ev_syserr ("(libev) error creating signal/async pipe"); |
2749 | ev_syserr ("(libev) error creating signal/async pipe"); |
2096 | |
2750 | |
2097 | fd_intern (fds [0]); |
2751 | fd_intern (fds [0]); |
2098 | } |
2752 | } |
2099 | |
|
|
2100 | fd_intern (fds [1]); |
|
|
2101 | |
2753 | |
2102 | evpipe [0] = fds [0]; |
2754 | evpipe [0] = fds [0]; |
2103 | |
2755 | |
2104 | if (evpipe [1] < 0) |
2756 | if (evpipe [1] < 0) |
2105 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2757 | evpipe [1] = fds [1]; /* first call, set write fd */ |
… | |
… | |
2112 | |
2764 | |
2113 | dup2 (fds [1], evpipe [1]); |
2765 | dup2 (fds [1], evpipe [1]); |
2114 | close (fds [1]); |
2766 | close (fds [1]); |
2115 | } |
2767 | } |
2116 | |
2768 | |
|
|
2769 | fd_intern (evpipe [1]); |
|
|
2770 | |
2117 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2771 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2118 | ev_io_start (EV_A_ &pipe_w); |
2772 | ev_io_start (EV_A_ &pipe_w); |
2119 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2773 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2120 | } |
2774 | } |
2121 | } |
2775 | } |
… | |
… | |
2123 | inline_speed void |
2777 | inline_speed void |
2124 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2778 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
2125 | { |
2779 | { |
2126 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2780 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
2127 | |
2781 | |
2128 | if (expect_true (*flag)) |
2782 | if (ecb_expect_true (*flag)) |
2129 | return; |
2783 | return; |
2130 | |
2784 | |
2131 | *flag = 1; |
2785 | *flag = 1; |
2132 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2786 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2133 | |
2787 | |
… | |
… | |
2154 | #endif |
2808 | #endif |
2155 | { |
2809 | { |
2156 | #ifdef _WIN32 |
2810 | #ifdef _WIN32 |
2157 | WSABUF buf; |
2811 | WSABUF buf; |
2158 | DWORD sent; |
2812 | DWORD sent; |
2159 | buf.buf = &buf; |
2813 | buf.buf = (char *)&buf; |
2160 | buf.len = 1; |
2814 | buf.len = 1; |
2161 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2815 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2162 | #else |
2816 | #else |
2163 | write (evpipe [1], &(evpipe [1]), 1); |
2817 | write (evpipe [1], &(evpipe [1]), 1); |
2164 | #endif |
2818 | #endif |
… | |
… | |
2210 | sig_pending = 0; |
2864 | sig_pending = 0; |
2211 | |
2865 | |
2212 | ECB_MEMORY_FENCE; |
2866 | ECB_MEMORY_FENCE; |
2213 | |
2867 | |
2214 | for (i = EV_NSIG - 1; i--; ) |
2868 | for (i = EV_NSIG - 1; i--; ) |
2215 | if (expect_false (signals [i].pending)) |
2869 | if (ecb_expect_false (signals [i].pending)) |
2216 | ev_feed_signal_event (EV_A_ i + 1); |
2870 | ev_feed_signal_event (EV_A_ i + 1); |
2217 | } |
2871 | } |
2218 | #endif |
2872 | #endif |
2219 | |
2873 | |
2220 | #if EV_ASYNC_ENABLE |
2874 | #if EV_ASYNC_ENABLE |
… | |
… | |
2236 | } |
2890 | } |
2237 | |
2891 | |
2238 | /*****************************************************************************/ |
2892 | /*****************************************************************************/ |
2239 | |
2893 | |
2240 | void |
2894 | void |
2241 | ev_feed_signal (int signum) EV_THROW |
2895 | ev_feed_signal (int signum) EV_NOEXCEPT |
2242 | { |
2896 | { |
2243 | #if EV_MULTIPLICITY |
2897 | #if EV_MULTIPLICITY |
2244 | EV_P; |
2898 | EV_P; |
2245 | ECB_MEMORY_FENCE_ACQUIRE; |
2899 | ECB_MEMORY_FENCE_ACQUIRE; |
2246 | EV_A = signals [signum - 1].loop; |
2900 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2261 | #endif |
2915 | #endif |
2262 | |
2916 | |
2263 | ev_feed_signal (signum); |
2917 | ev_feed_signal (signum); |
2264 | } |
2918 | } |
2265 | |
2919 | |
2266 | void noinline |
2920 | ecb_noinline |
|
|
2921 | void |
2267 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2922 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2268 | { |
2923 | { |
2269 | WL w; |
2924 | WL w; |
2270 | |
2925 | |
2271 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2926 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
2272 | return; |
2927 | return; |
2273 | |
2928 | |
2274 | --signum; |
2929 | --signum; |
2275 | |
2930 | |
2276 | #if EV_MULTIPLICITY |
2931 | #if EV_MULTIPLICITY |
2277 | /* it is permissible to try to feed a signal to the wrong loop */ |
2932 | /* it is permissible to try to feed a signal to the wrong loop */ |
2278 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2933 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
2279 | |
2934 | |
2280 | if (expect_false (signals [signum].loop != EV_A)) |
2935 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
2281 | return; |
2936 | return; |
2282 | #endif |
2937 | #endif |
2283 | |
2938 | |
2284 | signals [signum].pending = 0; |
2939 | signals [signum].pending = 0; |
2285 | ECB_MEMORY_FENCE_RELEASE; |
2940 | ECB_MEMORY_FENCE_RELEASE; |
… | |
… | |
2369 | |
3024 | |
2370 | #endif |
3025 | #endif |
2371 | |
3026 | |
2372 | /*****************************************************************************/ |
3027 | /*****************************************************************************/ |
2373 | |
3028 | |
|
|
3029 | #if EV_USE_TIMERFD |
|
|
3030 | |
|
|
3031 | static void periodics_reschedule (EV_P); |
|
|
3032 | |
|
|
3033 | static void |
|
|
3034 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
3035 | { |
|
|
3036 | struct itimerspec its = { 0 }; |
|
|
3037 | |
|
|
3038 | its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2; |
|
|
3039 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
3040 | |
|
|
3041 | ev_rt_now = ev_time (); |
|
|
3042 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
3043 | /* but maybe in the future we want the full treatment. */ |
|
|
3044 | /* |
|
|
3045 | now_floor = EV_TS_CONST (0.); |
|
|
3046 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
3047 | */ |
|
|
3048 | periodics_reschedule (EV_A); |
|
|
3049 | } |
|
|
3050 | |
|
|
3051 | ecb_noinline ecb_cold |
|
|
3052 | static void |
|
|
3053 | evtimerfd_init (EV_P) |
|
|
3054 | { |
|
|
3055 | if (!ev_is_active (&timerfd_w)) |
|
|
3056 | { |
|
|
3057 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
3058 | |
|
|
3059 | if (timerfd >= 0) |
|
|
3060 | { |
|
|
3061 | fd_intern (timerfd); /* just to be sure */ |
|
|
3062 | |
|
|
3063 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
3064 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
3065 | ev_io_start (EV_A_ &timerfd_w); |
|
|
3066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
3067 | |
|
|
3068 | /* (re-) arm timer */ |
|
|
3069 | timerfdcb (EV_A_ 0, 0); |
|
|
3070 | } |
|
|
3071 | } |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | #endif |
|
|
3075 | |
|
|
3076 | /*****************************************************************************/ |
|
|
3077 | |
2374 | #if EV_USE_IOCP |
3078 | #if EV_USE_IOCP |
2375 | # include "ev_iocp.c" |
3079 | # include "ev_iocp.c" |
2376 | #endif |
3080 | #endif |
2377 | #if EV_USE_PORT |
3081 | #if EV_USE_PORT |
2378 | # include "ev_port.c" |
3082 | # include "ev_port.c" |
… | |
… | |
2381 | # include "ev_kqueue.c" |
3085 | # include "ev_kqueue.c" |
2382 | #endif |
3086 | #endif |
2383 | #if EV_USE_EPOLL |
3087 | #if EV_USE_EPOLL |
2384 | # include "ev_epoll.c" |
3088 | # include "ev_epoll.c" |
2385 | #endif |
3089 | #endif |
|
|
3090 | #if EV_USE_LINUXAIO |
|
|
3091 | # include "ev_linuxaio.c" |
|
|
3092 | #endif |
|
|
3093 | #if EV_USE_IOURING |
|
|
3094 | # include "ev_iouring.c" |
|
|
3095 | #endif |
2386 | #if EV_USE_POLL |
3096 | #if EV_USE_POLL |
2387 | # include "ev_poll.c" |
3097 | # include "ev_poll.c" |
2388 | #endif |
3098 | #endif |
2389 | #if EV_USE_SELECT |
3099 | #if EV_USE_SELECT |
2390 | # include "ev_select.c" |
3100 | # include "ev_select.c" |
2391 | #endif |
3101 | #endif |
2392 | |
3102 | |
2393 | int ecb_cold |
3103 | ecb_cold int |
2394 | ev_version_major (void) EV_THROW |
3104 | ev_version_major (void) EV_NOEXCEPT |
2395 | { |
3105 | { |
2396 | return EV_VERSION_MAJOR; |
3106 | return EV_VERSION_MAJOR; |
2397 | } |
3107 | } |
2398 | |
3108 | |
2399 | int ecb_cold |
3109 | ecb_cold int |
2400 | ev_version_minor (void) EV_THROW |
3110 | ev_version_minor (void) EV_NOEXCEPT |
2401 | { |
3111 | { |
2402 | return EV_VERSION_MINOR; |
3112 | return EV_VERSION_MINOR; |
2403 | } |
3113 | } |
2404 | |
3114 | |
2405 | /* return true if we are running with elevated privileges and should ignore env variables */ |
3115 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2406 | int inline_size ecb_cold |
3116 | inline_size ecb_cold int |
2407 | enable_secure (void) |
3117 | enable_secure (void) |
2408 | { |
3118 | { |
2409 | #ifdef _WIN32 |
3119 | #ifdef _WIN32 |
2410 | return 0; |
3120 | return 0; |
2411 | #else |
3121 | #else |
2412 | return getuid () != geteuid () |
3122 | return getuid () != geteuid () |
2413 | || getgid () != getegid (); |
3123 | || getgid () != getegid (); |
2414 | #endif |
3124 | #endif |
2415 | } |
3125 | } |
2416 | |
3126 | |
2417 | unsigned int ecb_cold |
3127 | ecb_cold |
|
|
3128 | unsigned int |
2418 | ev_supported_backends (void) EV_THROW |
3129 | ev_supported_backends (void) EV_NOEXCEPT |
2419 | { |
3130 | { |
2420 | unsigned int flags = 0; |
3131 | unsigned int flags = 0; |
2421 | |
3132 | |
2422 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
3133 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2423 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
3134 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2424 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
3135 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2425 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
3136 | if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO; |
2426 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
3137 | if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */ |
2427 | |
3138 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
3139 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
|
|
3140 | |
2428 | return flags; |
3141 | return flags; |
2429 | } |
3142 | } |
2430 | |
3143 | |
2431 | unsigned int ecb_cold |
3144 | ecb_cold |
|
|
3145 | unsigned int |
2432 | ev_recommended_backends (void) EV_THROW |
3146 | ev_recommended_backends (void) EV_NOEXCEPT |
2433 | { |
3147 | { |
2434 | unsigned int flags = ev_supported_backends (); |
3148 | unsigned int flags = ev_supported_backends (); |
2435 | |
3149 | |
2436 | #ifndef __NetBSD__ |
3150 | #ifndef __NetBSD__ |
2437 | /* kqueue is borked on everything but netbsd apparently */ |
3151 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2445 | #endif |
3159 | #endif |
2446 | #ifdef __FreeBSD__ |
3160 | #ifdef __FreeBSD__ |
2447 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
3161 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2448 | #endif |
3162 | #endif |
2449 | |
3163 | |
|
|
3164 | /* TODO: linuxaio is very experimental */ |
|
|
3165 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3166 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3167 | #endif |
|
|
3168 | /* TODO: linuxaio is super experimental */ |
|
|
3169 | #if !EV_RECOMMEND_IOURING |
|
|
3170 | flags &= ~EVBACKEND_IOURING; |
|
|
3171 | #endif |
|
|
3172 | |
2450 | return flags; |
3173 | return flags; |
2451 | } |
3174 | } |
2452 | |
3175 | |
2453 | unsigned int ecb_cold |
3176 | ecb_cold |
|
|
3177 | unsigned int |
2454 | ev_embeddable_backends (void) EV_THROW |
3178 | ev_embeddable_backends (void) EV_NOEXCEPT |
2455 | { |
3179 | { |
2456 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3180 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING; |
2457 | |
3181 | |
2458 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3182 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2459 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
3183 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2460 | flags &= ~EVBACKEND_EPOLL; |
3184 | flags &= ~EVBACKEND_EPOLL; |
2461 | |
3185 | |
|
|
3186 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3187 | |
2462 | return flags; |
3188 | return flags; |
2463 | } |
3189 | } |
2464 | |
3190 | |
2465 | unsigned int |
3191 | unsigned int |
2466 | ev_backend (EV_P) EV_THROW |
3192 | ev_backend (EV_P) EV_NOEXCEPT |
2467 | { |
3193 | { |
2468 | return backend; |
3194 | return backend; |
2469 | } |
3195 | } |
2470 | |
3196 | |
2471 | #if EV_FEATURE_API |
3197 | #if EV_FEATURE_API |
2472 | unsigned int |
3198 | unsigned int |
2473 | ev_iteration (EV_P) EV_THROW |
3199 | ev_iteration (EV_P) EV_NOEXCEPT |
2474 | { |
3200 | { |
2475 | return loop_count; |
3201 | return loop_count; |
2476 | } |
3202 | } |
2477 | |
3203 | |
2478 | unsigned int |
3204 | unsigned int |
2479 | ev_depth (EV_P) EV_THROW |
3205 | ev_depth (EV_P) EV_NOEXCEPT |
2480 | { |
3206 | { |
2481 | return loop_depth; |
3207 | return loop_depth; |
2482 | } |
3208 | } |
2483 | |
3209 | |
2484 | void |
3210 | void |
2485 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3211 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2486 | { |
3212 | { |
2487 | io_blocktime = interval; |
3213 | io_blocktime = interval; |
2488 | } |
3214 | } |
2489 | |
3215 | |
2490 | void |
3216 | void |
2491 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
3217 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2492 | { |
3218 | { |
2493 | timeout_blocktime = interval; |
3219 | timeout_blocktime = interval; |
2494 | } |
3220 | } |
2495 | |
3221 | |
2496 | void |
3222 | void |
2497 | ev_set_userdata (EV_P_ void *data) EV_THROW |
3223 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2498 | { |
3224 | { |
2499 | userdata = data; |
3225 | userdata = data; |
2500 | } |
3226 | } |
2501 | |
3227 | |
2502 | void * |
3228 | void * |
2503 | ev_userdata (EV_P) EV_THROW |
3229 | ev_userdata (EV_P) EV_NOEXCEPT |
2504 | { |
3230 | { |
2505 | return userdata; |
3231 | return userdata; |
2506 | } |
3232 | } |
2507 | |
3233 | |
2508 | void |
3234 | void |
2509 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
3235 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2510 | { |
3236 | { |
2511 | invoke_cb = invoke_pending_cb; |
3237 | invoke_cb = invoke_pending_cb; |
2512 | } |
3238 | } |
2513 | |
3239 | |
2514 | void |
3240 | void |
2515 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
3241 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2516 | { |
3242 | { |
2517 | release_cb = release; |
3243 | release_cb = release; |
2518 | acquire_cb = acquire; |
3244 | acquire_cb = acquire; |
2519 | } |
3245 | } |
2520 | #endif |
3246 | #endif |
2521 | |
3247 | |
2522 | /* initialise a loop structure, must be zero-initialised */ |
3248 | /* initialise a loop structure, must be zero-initialised */ |
2523 | static void noinline ecb_cold |
3249 | ecb_noinline ecb_cold |
|
|
3250 | static void |
2524 | loop_init (EV_P_ unsigned int flags) EV_THROW |
3251 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2525 | { |
3252 | { |
2526 | if (!backend) |
3253 | if (!backend) |
2527 | { |
3254 | { |
2528 | origflags = flags; |
3255 | origflags = flags; |
2529 | |
3256 | |
… | |
… | |
2582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
3309 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2583 | #endif |
3310 | #endif |
2584 | #if EV_USE_SIGNALFD |
3311 | #if EV_USE_SIGNALFD |
2585 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
3312 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2586 | #endif |
3313 | #endif |
|
|
3314 | #if EV_USE_TIMERFD |
|
|
3315 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3316 | #endif |
2587 | |
3317 | |
2588 | if (!(flags & EVBACKEND_MASK)) |
3318 | if (!(flags & EVBACKEND_MASK)) |
2589 | flags |= ev_recommended_backends (); |
3319 | flags |= ev_recommended_backends (); |
2590 | |
3320 | |
2591 | #if EV_USE_IOCP |
3321 | #if EV_USE_IOCP |
2592 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
3322 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2593 | #endif |
3323 | #endif |
2594 | #if EV_USE_PORT |
3324 | #if EV_USE_PORT |
2595 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3325 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2596 | #endif |
3326 | #endif |
2597 | #if EV_USE_KQUEUE |
3327 | #if EV_USE_KQUEUE |
2598 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3328 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3329 | #endif |
|
|
3330 | #if EV_USE_IOURING |
|
|
3331 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3332 | #endif |
|
|
3333 | #if EV_USE_LINUXAIO |
|
|
3334 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2599 | #endif |
3335 | #endif |
2600 | #if EV_USE_EPOLL |
3336 | #if EV_USE_EPOLL |
2601 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3337 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2602 | #endif |
3338 | #endif |
2603 | #if EV_USE_POLL |
3339 | #if EV_USE_POLL |
2604 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3340 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2605 | #endif |
3341 | #endif |
2606 | #if EV_USE_SELECT |
3342 | #if EV_USE_SELECT |
2607 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3343 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2608 | #endif |
3344 | #endif |
2609 | |
3345 | |
2610 | ev_prepare_init (&pending_w, pendingcb); |
3346 | ev_prepare_init (&pending_w, pendingcb); |
2611 | |
3347 | |
2612 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3348 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2615 | #endif |
3351 | #endif |
2616 | } |
3352 | } |
2617 | } |
3353 | } |
2618 | |
3354 | |
2619 | /* free up a loop structure */ |
3355 | /* free up a loop structure */ |
2620 | void ecb_cold |
3356 | ecb_cold |
|
|
3357 | void |
2621 | ev_loop_destroy (EV_P) |
3358 | ev_loop_destroy (EV_P) |
2622 | { |
3359 | { |
2623 | int i; |
3360 | int i; |
2624 | |
3361 | |
2625 | #if EV_MULTIPLICITY |
3362 | #if EV_MULTIPLICITY |
… | |
… | |
2628 | return; |
3365 | return; |
2629 | #endif |
3366 | #endif |
2630 | |
3367 | |
2631 | #if EV_CLEANUP_ENABLE |
3368 | #if EV_CLEANUP_ENABLE |
2632 | /* queue cleanup watchers (and execute them) */ |
3369 | /* queue cleanup watchers (and execute them) */ |
2633 | if (expect_false (cleanupcnt)) |
3370 | if (ecb_expect_false (cleanupcnt)) |
2634 | { |
3371 | { |
2635 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
3372 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
2636 | EV_INVOKE_PENDING; |
3373 | EV_INVOKE_PENDING; |
2637 | } |
3374 | } |
2638 | #endif |
3375 | #endif |
… | |
… | |
2657 | #if EV_USE_SIGNALFD |
3394 | #if EV_USE_SIGNALFD |
2658 | if (ev_is_active (&sigfd_w)) |
3395 | if (ev_is_active (&sigfd_w)) |
2659 | close (sigfd); |
3396 | close (sigfd); |
2660 | #endif |
3397 | #endif |
2661 | |
3398 | |
|
|
3399 | #if EV_USE_TIMERFD |
|
|
3400 | if (ev_is_active (&timerfd_w)) |
|
|
3401 | close (timerfd); |
|
|
3402 | #endif |
|
|
3403 | |
2662 | #if EV_USE_INOTIFY |
3404 | #if EV_USE_INOTIFY |
2663 | if (fs_fd >= 0) |
3405 | if (fs_fd >= 0) |
2664 | close (fs_fd); |
3406 | close (fs_fd); |
2665 | #endif |
3407 | #endif |
2666 | |
3408 | |
2667 | if (backend_fd >= 0) |
3409 | if (backend_fd >= 0) |
2668 | close (backend_fd); |
3410 | close (backend_fd); |
2669 | |
3411 | |
2670 | #if EV_USE_IOCP |
3412 | #if EV_USE_IOCP |
2671 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3413 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2672 | #endif |
3414 | #endif |
2673 | #if EV_USE_PORT |
3415 | #if EV_USE_PORT |
2674 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3416 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2675 | #endif |
3417 | #endif |
2676 | #if EV_USE_KQUEUE |
3418 | #if EV_USE_KQUEUE |
2677 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3419 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3420 | #endif |
|
|
3421 | #if EV_USE_IOURING |
|
|
3422 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3423 | #endif |
|
|
3424 | #if EV_USE_LINUXAIO |
|
|
3425 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2678 | #endif |
3426 | #endif |
2679 | #if EV_USE_EPOLL |
3427 | #if EV_USE_EPOLL |
2680 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3428 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2681 | #endif |
3429 | #endif |
2682 | #if EV_USE_POLL |
3430 | #if EV_USE_POLL |
2683 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3431 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2684 | #endif |
3432 | #endif |
2685 | #if EV_USE_SELECT |
3433 | #if EV_USE_SELECT |
2686 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3434 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2687 | #endif |
3435 | #endif |
2688 | |
3436 | |
2689 | for (i = NUMPRI; i--; ) |
3437 | for (i = NUMPRI; i--; ) |
2690 | { |
3438 | { |
2691 | array_free (pending, [i]); |
3439 | array_free (pending, [i]); |
… | |
… | |
2733 | |
3481 | |
2734 | inline_size void |
3482 | inline_size void |
2735 | loop_fork (EV_P) |
3483 | loop_fork (EV_P) |
2736 | { |
3484 | { |
2737 | #if EV_USE_PORT |
3485 | #if EV_USE_PORT |
2738 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3486 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2739 | #endif |
3487 | #endif |
2740 | #if EV_USE_KQUEUE |
3488 | #if EV_USE_KQUEUE |
2741 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3489 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3490 | #endif |
|
|
3491 | #if EV_USE_IOURING |
|
|
3492 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3493 | #endif |
|
|
3494 | #if EV_USE_LINUXAIO |
|
|
3495 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2742 | #endif |
3496 | #endif |
2743 | #if EV_USE_EPOLL |
3497 | #if EV_USE_EPOLL |
2744 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3498 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2745 | #endif |
3499 | #endif |
2746 | #if EV_USE_INOTIFY |
3500 | #if EV_USE_INOTIFY |
2747 | infy_fork (EV_A); |
3501 | infy_fork (EV_A); |
2748 | #endif |
3502 | #endif |
2749 | |
3503 | |
|
|
3504 | if (postfork != 2) |
|
|
3505 | { |
|
|
3506 | #if EV_USE_SIGNALFD |
|
|
3507 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
|
|
3508 | #endif |
|
|
3509 | |
|
|
3510 | #if EV_USE_TIMERFD |
|
|
3511 | if (ev_is_active (&timerfd_w)) |
|
|
3512 | { |
|
|
3513 | ev_ref (EV_A); |
|
|
3514 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3515 | |
|
|
3516 | close (timerfd); |
|
|
3517 | timerfd = -2; |
|
|
3518 | |
|
|
3519 | evtimerfd_init (EV_A); |
|
|
3520 | /* reschedule periodics, in case we missed something */ |
|
|
3521 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
|
|
3522 | } |
|
|
3523 | #endif |
|
|
3524 | |
2750 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3525 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2751 | if (ev_is_active (&pipe_w)) |
3526 | if (ev_is_active (&pipe_w)) |
2752 | { |
3527 | { |
2753 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3528 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2754 | |
3529 | |
2755 | ev_ref (EV_A); |
3530 | ev_ref (EV_A); |
2756 | ev_io_stop (EV_A_ &pipe_w); |
3531 | ev_io_stop (EV_A_ &pipe_w); |
2757 | |
3532 | |
2758 | if (evpipe [0] >= 0) |
3533 | if (evpipe [0] >= 0) |
2759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3534 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2760 | |
3535 | |
2761 | evpipe_init (EV_A); |
3536 | evpipe_init (EV_A); |
2762 | /* iterate over everything, in case we missed something before */ |
3537 | /* iterate over everything, in case we missed something before */ |
2763 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3538 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3539 | } |
|
|
3540 | #endif |
2764 | } |
3541 | } |
2765 | #endif |
|
|
2766 | |
3542 | |
2767 | postfork = 0; |
3543 | postfork = 0; |
2768 | } |
3544 | } |
2769 | |
3545 | |
2770 | #if EV_MULTIPLICITY |
3546 | #if EV_MULTIPLICITY |
2771 | |
3547 | |
|
|
3548 | ecb_cold |
2772 | struct ev_loop * ecb_cold |
3549 | struct ev_loop * |
2773 | ev_loop_new (unsigned int flags) EV_THROW |
3550 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2774 | { |
3551 | { |
2775 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3552 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2776 | |
3553 | |
2777 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3554 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2778 | loop_init (EV_A_ flags); |
3555 | loop_init (EV_A_ flags); |
… | |
… | |
2785 | } |
3562 | } |
2786 | |
3563 | |
2787 | #endif /* multiplicity */ |
3564 | #endif /* multiplicity */ |
2788 | |
3565 | |
2789 | #if EV_VERIFY |
3566 | #if EV_VERIFY |
2790 | static void noinline ecb_cold |
3567 | ecb_noinline ecb_cold |
|
|
3568 | static void |
2791 | verify_watcher (EV_P_ W w) |
3569 | verify_watcher (EV_P_ W w) |
2792 | { |
3570 | { |
2793 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3571 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2794 | |
3572 | |
2795 | if (w->pending) |
3573 | if (w->pending) |
2796 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3574 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2797 | } |
3575 | } |
2798 | |
3576 | |
2799 | static void noinline ecb_cold |
3577 | ecb_noinline ecb_cold |
|
|
3578 | static void |
2800 | verify_heap (EV_P_ ANHE *heap, int N) |
3579 | verify_heap (EV_P_ ANHE *heap, int N) |
2801 | { |
3580 | { |
2802 | int i; |
3581 | int i; |
2803 | |
3582 | |
2804 | for (i = HEAP0; i < N + HEAP0; ++i) |
3583 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2809 | |
3588 | |
2810 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3589 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2811 | } |
3590 | } |
2812 | } |
3591 | } |
2813 | |
3592 | |
2814 | static void noinline ecb_cold |
3593 | ecb_noinline ecb_cold |
|
|
3594 | static void |
2815 | array_verify (EV_P_ W *ws, int cnt) |
3595 | array_verify (EV_P_ W *ws, int cnt) |
2816 | { |
3596 | { |
2817 | while (cnt--) |
3597 | while (cnt--) |
2818 | { |
3598 | { |
2819 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3599 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2822 | } |
3602 | } |
2823 | #endif |
3603 | #endif |
2824 | |
3604 | |
2825 | #if EV_FEATURE_API |
3605 | #if EV_FEATURE_API |
2826 | void ecb_cold |
3606 | void ecb_cold |
2827 | ev_verify (EV_P) EV_THROW |
3607 | ev_verify (EV_P) EV_NOEXCEPT |
2828 | { |
3608 | { |
2829 | #if EV_VERIFY |
3609 | #if EV_VERIFY |
2830 | int i; |
3610 | int i; |
2831 | WL w, w2; |
3611 | WL w, w2; |
2832 | |
3612 | |
… | |
… | |
2908 | #endif |
3688 | #endif |
2909 | } |
3689 | } |
2910 | #endif |
3690 | #endif |
2911 | |
3691 | |
2912 | #if EV_MULTIPLICITY |
3692 | #if EV_MULTIPLICITY |
|
|
3693 | ecb_cold |
2913 | struct ev_loop * ecb_cold |
3694 | struct ev_loop * |
2914 | #else |
3695 | #else |
2915 | int |
3696 | int |
2916 | #endif |
3697 | #endif |
2917 | ev_default_loop (unsigned int flags) EV_THROW |
3698 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2918 | { |
3699 | { |
2919 | if (!ev_default_loop_ptr) |
3700 | if (!ev_default_loop_ptr) |
2920 | { |
3701 | { |
2921 | #if EV_MULTIPLICITY |
3702 | #if EV_MULTIPLICITY |
2922 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3703 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2941 | |
3722 | |
2942 | return ev_default_loop_ptr; |
3723 | return ev_default_loop_ptr; |
2943 | } |
3724 | } |
2944 | |
3725 | |
2945 | void |
3726 | void |
2946 | ev_loop_fork (EV_P) EV_THROW |
3727 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2947 | { |
3728 | { |
2948 | postfork = 1; |
3729 | postfork = 1; |
2949 | } |
3730 | } |
2950 | |
3731 | |
2951 | /*****************************************************************************/ |
3732 | /*****************************************************************************/ |
… | |
… | |
2955 | { |
3736 | { |
2956 | EV_CB_INVOKE ((W)w, revents); |
3737 | EV_CB_INVOKE ((W)w, revents); |
2957 | } |
3738 | } |
2958 | |
3739 | |
2959 | unsigned int |
3740 | unsigned int |
2960 | ev_pending_count (EV_P) EV_THROW |
3741 | ev_pending_count (EV_P) EV_NOEXCEPT |
2961 | { |
3742 | { |
2962 | int pri; |
3743 | int pri; |
2963 | unsigned int count = 0; |
3744 | unsigned int count = 0; |
2964 | |
3745 | |
2965 | for (pri = NUMPRI; pri--; ) |
3746 | for (pri = NUMPRI; pri--; ) |
2966 | count += pendingcnt [pri]; |
3747 | count += pendingcnt [pri]; |
2967 | |
3748 | |
2968 | return count; |
3749 | return count; |
2969 | } |
3750 | } |
2970 | |
3751 | |
2971 | void noinline |
3752 | ecb_noinline |
|
|
3753 | void |
2972 | ev_invoke_pending (EV_P) |
3754 | ev_invoke_pending (EV_P) |
2973 | { |
3755 | { |
2974 | pendingpri = NUMPRI; |
3756 | pendingpri = NUMPRI; |
2975 | |
3757 | |
2976 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3758 | do |
2977 | { |
3759 | { |
2978 | --pendingpri; |
3760 | --pendingpri; |
2979 | |
3761 | |
|
|
3762 | /* pendingpri possibly gets modified in the inner loop */ |
2980 | while (pendingcnt [pendingpri]) |
3763 | while (pendingcnt [pendingpri]) |
2981 | { |
3764 | { |
2982 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3765 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2983 | |
3766 | |
2984 | p->w->pending = 0; |
3767 | p->w->pending = 0; |
2985 | EV_CB_INVOKE (p->w, p->events); |
3768 | EV_CB_INVOKE (p->w, p->events); |
2986 | EV_FREQUENT_CHECK; |
3769 | EV_FREQUENT_CHECK; |
2987 | } |
3770 | } |
2988 | } |
3771 | } |
|
|
3772 | while (pendingpri); |
2989 | } |
3773 | } |
2990 | |
3774 | |
2991 | #if EV_IDLE_ENABLE |
3775 | #if EV_IDLE_ENABLE |
2992 | /* make idle watchers pending. this handles the "call-idle */ |
3776 | /* make idle watchers pending. this handles the "call-idle */ |
2993 | /* only when higher priorities are idle" logic */ |
3777 | /* only when higher priorities are idle" logic */ |
2994 | inline_size void |
3778 | inline_size void |
2995 | idle_reify (EV_P) |
3779 | idle_reify (EV_P) |
2996 | { |
3780 | { |
2997 | if (expect_false (idleall)) |
3781 | if (ecb_expect_false (idleall)) |
2998 | { |
3782 | { |
2999 | int pri; |
3783 | int pri; |
3000 | |
3784 | |
3001 | for (pri = NUMPRI; pri--; ) |
3785 | for (pri = NUMPRI; pri--; ) |
3002 | { |
3786 | { |
… | |
… | |
3032 | { |
3816 | { |
3033 | ev_at (w) += w->repeat; |
3817 | ev_at (w) += w->repeat; |
3034 | if (ev_at (w) < mn_now) |
3818 | if (ev_at (w) < mn_now) |
3035 | ev_at (w) = mn_now; |
3819 | ev_at (w) = mn_now; |
3036 | |
3820 | |
3037 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3821 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
3038 | |
3822 | |
3039 | ANHE_at_cache (timers [HEAP0]); |
3823 | ANHE_at_cache (timers [HEAP0]); |
3040 | downheap (timers, timercnt, HEAP0); |
3824 | downheap (timers, timercnt, HEAP0); |
3041 | } |
3825 | } |
3042 | else |
3826 | else |
… | |
… | |
3051 | } |
3835 | } |
3052 | } |
3836 | } |
3053 | |
3837 | |
3054 | #if EV_PERIODIC_ENABLE |
3838 | #if EV_PERIODIC_ENABLE |
3055 | |
3839 | |
3056 | static void noinline |
3840 | ecb_noinline |
|
|
3841 | static void |
3057 | periodic_recalc (EV_P_ ev_periodic *w) |
3842 | periodic_recalc (EV_P_ ev_periodic *w) |
3058 | { |
3843 | { |
3059 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3844 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3060 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3845 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3061 | |
3846 | |
… | |
… | |
3063 | while (at <= ev_rt_now) |
3848 | while (at <= ev_rt_now) |
3064 | { |
3849 | { |
3065 | ev_tstamp nat = at + w->interval; |
3850 | ev_tstamp nat = at + w->interval; |
3066 | |
3851 | |
3067 | /* when resolution fails us, we use ev_rt_now */ |
3852 | /* when resolution fails us, we use ev_rt_now */ |
3068 | if (expect_false (nat == at)) |
3853 | if (ecb_expect_false (nat == at)) |
3069 | { |
3854 | { |
3070 | at = ev_rt_now; |
3855 | at = ev_rt_now; |
3071 | break; |
3856 | break; |
3072 | } |
3857 | } |
3073 | |
3858 | |
… | |
… | |
3119 | } |
3904 | } |
3120 | } |
3905 | } |
3121 | |
3906 | |
3122 | /* simply recalculate all periodics */ |
3907 | /* simply recalculate all periodics */ |
3123 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3908 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3124 | static void noinline ecb_cold |
3909 | ecb_noinline ecb_cold |
|
|
3910 | static void |
3125 | periodics_reschedule (EV_P) |
3911 | periodics_reschedule (EV_P) |
3126 | { |
3912 | { |
3127 | int i; |
3913 | int i; |
3128 | |
3914 | |
3129 | /* adjust periodics after time jump */ |
3915 | /* adjust periodics after time jump */ |
… | |
… | |
3142 | reheap (periodics, periodiccnt); |
3928 | reheap (periodics, periodiccnt); |
3143 | } |
3929 | } |
3144 | #endif |
3930 | #endif |
3145 | |
3931 | |
3146 | /* adjust all timers by a given offset */ |
3932 | /* adjust all timers by a given offset */ |
3147 | static void noinline ecb_cold |
3933 | ecb_noinline ecb_cold |
|
|
3934 | static void |
3148 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3935 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3149 | { |
3936 | { |
3150 | int i; |
3937 | int i; |
3151 | |
3938 | |
3152 | for (i = 0; i < timercnt; ++i) |
3939 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3161 | /* also detect if there was a timejump, and act accordingly */ |
3948 | /* also detect if there was a timejump, and act accordingly */ |
3162 | inline_speed void |
3949 | inline_speed void |
3163 | time_update (EV_P_ ev_tstamp max_block) |
3950 | time_update (EV_P_ ev_tstamp max_block) |
3164 | { |
3951 | { |
3165 | #if EV_USE_MONOTONIC |
3952 | #if EV_USE_MONOTONIC |
3166 | if (expect_true (have_monotonic)) |
3953 | if (ecb_expect_true (have_monotonic)) |
3167 | { |
3954 | { |
3168 | int i; |
3955 | int i; |
3169 | ev_tstamp odiff = rtmn_diff; |
3956 | ev_tstamp odiff = rtmn_diff; |
3170 | |
3957 | |
3171 | mn_now = get_clock (); |
3958 | mn_now = get_clock (); |
3172 | |
3959 | |
3173 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3960 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3174 | /* interpolate in the meantime */ |
3961 | /* interpolate in the meantime */ |
3175 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3962 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
3176 | { |
3963 | { |
3177 | ev_rt_now = rtmn_diff + mn_now; |
3964 | ev_rt_now = rtmn_diff + mn_now; |
3178 | return; |
3965 | return; |
3179 | } |
3966 | } |
3180 | |
3967 | |
… | |
… | |
3194 | ev_tstamp diff; |
3981 | ev_tstamp diff; |
3195 | rtmn_diff = ev_rt_now - mn_now; |
3982 | rtmn_diff = ev_rt_now - mn_now; |
3196 | |
3983 | |
3197 | diff = odiff - rtmn_diff; |
3984 | diff = odiff - rtmn_diff; |
3198 | |
3985 | |
3199 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
3986 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
3200 | return; /* all is well */ |
3987 | return; /* all is well */ |
3201 | |
3988 | |
3202 | ev_rt_now = ev_time (); |
3989 | ev_rt_now = ev_time (); |
3203 | mn_now = get_clock (); |
3990 | mn_now = get_clock (); |
3204 | now_floor = mn_now; |
3991 | now_floor = mn_now; |
… | |
… | |
3213 | else |
4000 | else |
3214 | #endif |
4001 | #endif |
3215 | { |
4002 | { |
3216 | ev_rt_now = ev_time (); |
4003 | ev_rt_now = ev_time (); |
3217 | |
4004 | |
3218 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
4005 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
3219 | { |
4006 | { |
3220 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
4007 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3221 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
4008 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3222 | #if EV_PERIODIC_ENABLE |
4009 | #if EV_PERIODIC_ENABLE |
3223 | periodics_reschedule (EV_A); |
4010 | periodics_reschedule (EV_A); |
… | |
… | |
3246 | #if EV_VERIFY >= 2 |
4033 | #if EV_VERIFY >= 2 |
3247 | ev_verify (EV_A); |
4034 | ev_verify (EV_A); |
3248 | #endif |
4035 | #endif |
3249 | |
4036 | |
3250 | #ifndef _WIN32 |
4037 | #ifndef _WIN32 |
3251 | if (expect_false (curpid)) /* penalise the forking check even more */ |
4038 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
3252 | if (expect_false (getpid () != curpid)) |
4039 | if (ecb_expect_false (getpid () != curpid)) |
3253 | { |
4040 | { |
3254 | curpid = getpid (); |
4041 | curpid = getpid (); |
3255 | postfork = 1; |
4042 | postfork = 1; |
3256 | } |
4043 | } |
3257 | #endif |
4044 | #endif |
3258 | |
4045 | |
3259 | #if EV_FORK_ENABLE |
4046 | #if EV_FORK_ENABLE |
3260 | /* we might have forked, so queue fork handlers */ |
4047 | /* we might have forked, so queue fork handlers */ |
3261 | if (expect_false (postfork)) |
4048 | if (ecb_expect_false (postfork)) |
3262 | if (forkcnt) |
4049 | if (forkcnt) |
3263 | { |
4050 | { |
3264 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
4051 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3265 | EV_INVOKE_PENDING; |
4052 | EV_INVOKE_PENDING; |
3266 | } |
4053 | } |
3267 | #endif |
4054 | #endif |
3268 | |
4055 | |
3269 | #if EV_PREPARE_ENABLE |
4056 | #if EV_PREPARE_ENABLE |
3270 | /* queue prepare watchers (and execute them) */ |
4057 | /* queue prepare watchers (and execute them) */ |
3271 | if (expect_false (preparecnt)) |
4058 | if (ecb_expect_false (preparecnt)) |
3272 | { |
4059 | { |
3273 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
4060 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3274 | EV_INVOKE_PENDING; |
4061 | EV_INVOKE_PENDING; |
3275 | } |
4062 | } |
3276 | #endif |
4063 | #endif |
3277 | |
4064 | |
3278 | if (expect_false (loop_done)) |
4065 | if (ecb_expect_false (loop_done)) |
3279 | break; |
4066 | break; |
3280 | |
4067 | |
3281 | /* we might have forked, so reify kernel state if necessary */ |
4068 | /* we might have forked, so reify kernel state if necessary */ |
3282 | if (expect_false (postfork)) |
4069 | if (ecb_expect_false (postfork)) |
3283 | loop_fork (EV_A); |
4070 | loop_fork (EV_A); |
3284 | |
4071 | |
3285 | /* update fd-related kernel structures */ |
4072 | /* update fd-related kernel structures */ |
3286 | fd_reify (EV_A); |
4073 | fd_reify (EV_A); |
3287 | |
4074 | |
… | |
… | |
3292 | |
4079 | |
3293 | /* remember old timestamp for io_blocktime calculation */ |
4080 | /* remember old timestamp for io_blocktime calculation */ |
3294 | ev_tstamp prev_mn_now = mn_now; |
4081 | ev_tstamp prev_mn_now = mn_now; |
3295 | |
4082 | |
3296 | /* update time to cancel out callback processing overhead */ |
4083 | /* update time to cancel out callback processing overhead */ |
3297 | time_update (EV_A_ 1e100); |
4084 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
3298 | |
4085 | |
3299 | /* from now on, we want a pipe-wake-up */ |
4086 | /* from now on, we want a pipe-wake-up */ |
3300 | pipe_write_wanted = 1; |
4087 | pipe_write_wanted = 1; |
3301 | |
4088 | |
3302 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
4089 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
3303 | |
4090 | |
3304 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
4091 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
3305 | { |
4092 | { |
3306 | waittime = MAX_BLOCKTIME; |
4093 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
|
|
4094 | |
|
|
4095 | #if EV_USE_TIMERFD |
|
|
4096 | /* sleep a lot longer when we can reliably detect timejumps */ |
|
|
4097 | if (ecb_expect_true (timerfd >= 0)) |
|
|
4098 | waittime = EV_TS_CONST (MAX_BLOCKTIME2); |
|
|
4099 | #endif |
3307 | |
4100 | |
3308 | if (timercnt) |
4101 | if (timercnt) |
3309 | { |
4102 | { |
3310 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
4103 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
3311 | if (waittime > to) waittime = to; |
4104 | if (waittime > to) waittime = to; |
… | |
… | |
3318 | if (waittime > to) waittime = to; |
4111 | if (waittime > to) waittime = to; |
3319 | } |
4112 | } |
3320 | #endif |
4113 | #endif |
3321 | |
4114 | |
3322 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
4115 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3323 | if (expect_false (waittime < timeout_blocktime)) |
4116 | if (ecb_expect_false (waittime < timeout_blocktime)) |
3324 | waittime = timeout_blocktime; |
4117 | waittime = timeout_blocktime; |
3325 | |
4118 | |
3326 | /* at this point, we NEED to wait, so we have to ensure */ |
4119 | /* now there are two more special cases left, either we have |
3327 | /* to pass a minimum nonzero value to the backend */ |
4120 | * already-expired timers, so we should not sleep, or we have timers |
|
|
4121 | * that expire very soon, in which case we need to wait for a minimum |
|
|
4122 | * amount of time for some event loop backends. |
|
|
4123 | */ |
3328 | if (expect_false (waittime < backend_mintime)) |
4124 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
4125 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
4126 | ? EV_TS_CONST (0.) |
3329 | waittime = backend_mintime; |
4127 | : backend_mintime; |
3330 | |
4128 | |
3331 | /* extra check because io_blocktime is commonly 0 */ |
4129 | /* extra check because io_blocktime is commonly 0 */ |
3332 | if (expect_false (io_blocktime)) |
4130 | if (ecb_expect_false (io_blocktime)) |
3333 | { |
4131 | { |
3334 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
4132 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3335 | |
4133 | |
3336 | if (sleeptime > waittime - backend_mintime) |
4134 | if (sleeptime > waittime - backend_mintime) |
3337 | sleeptime = waittime - backend_mintime; |
4135 | sleeptime = waittime - backend_mintime; |
3338 | |
4136 | |
3339 | if (expect_true (sleeptime > 0.)) |
4137 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
3340 | { |
4138 | { |
3341 | ev_sleep (sleeptime); |
4139 | ev_sleep (sleeptime); |
3342 | waittime -= sleeptime; |
4140 | waittime -= sleeptime; |
3343 | } |
4141 | } |
3344 | } |
4142 | } |
… | |
… | |
3358 | { |
4156 | { |
3359 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
4157 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3360 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
4158 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3361 | } |
4159 | } |
3362 | |
4160 | |
3363 | |
|
|
3364 | /* update ev_rt_now, do magic */ |
4161 | /* update ev_rt_now, do magic */ |
3365 | time_update (EV_A_ waittime + sleeptime); |
4162 | time_update (EV_A_ waittime + sleeptime); |
3366 | } |
4163 | } |
3367 | |
4164 | |
3368 | /* queue pending timers and reschedule them */ |
4165 | /* queue pending timers and reschedule them */ |
… | |
… | |
3376 | idle_reify (EV_A); |
4173 | idle_reify (EV_A); |
3377 | #endif |
4174 | #endif |
3378 | |
4175 | |
3379 | #if EV_CHECK_ENABLE |
4176 | #if EV_CHECK_ENABLE |
3380 | /* queue check watchers, to be executed first */ |
4177 | /* queue check watchers, to be executed first */ |
3381 | if (expect_false (checkcnt)) |
4178 | if (ecb_expect_false (checkcnt)) |
3382 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4179 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3383 | #endif |
4180 | #endif |
3384 | |
4181 | |
3385 | EV_INVOKE_PENDING; |
4182 | EV_INVOKE_PENDING; |
3386 | } |
4183 | } |
3387 | while (expect_true ( |
4184 | while (ecb_expect_true ( |
3388 | activecnt |
4185 | activecnt |
3389 | && !loop_done |
4186 | && !loop_done |
3390 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
4187 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
3391 | )); |
4188 | )); |
3392 | |
4189 | |
… | |
… | |
3399 | |
4196 | |
3400 | return activecnt; |
4197 | return activecnt; |
3401 | } |
4198 | } |
3402 | |
4199 | |
3403 | void |
4200 | void |
3404 | ev_break (EV_P_ int how) EV_THROW |
4201 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3405 | { |
4202 | { |
3406 | loop_done = how; |
4203 | loop_done = how; |
3407 | } |
4204 | } |
3408 | |
4205 | |
3409 | void |
4206 | void |
3410 | ev_ref (EV_P) EV_THROW |
4207 | ev_ref (EV_P) EV_NOEXCEPT |
3411 | { |
4208 | { |
3412 | ++activecnt; |
4209 | ++activecnt; |
3413 | } |
4210 | } |
3414 | |
4211 | |
3415 | void |
4212 | void |
3416 | ev_unref (EV_P) EV_THROW |
4213 | ev_unref (EV_P) EV_NOEXCEPT |
3417 | { |
4214 | { |
3418 | --activecnt; |
4215 | --activecnt; |
3419 | } |
4216 | } |
3420 | |
4217 | |
3421 | void |
4218 | void |
3422 | ev_now_update (EV_P) EV_THROW |
4219 | ev_now_update (EV_P) EV_NOEXCEPT |
3423 | { |
4220 | { |
3424 | time_update (EV_A_ 1e100); |
4221 | time_update (EV_A_ EV_TSTAMP_HUGE); |
3425 | } |
4222 | } |
3426 | |
4223 | |
3427 | void |
4224 | void |
3428 | ev_suspend (EV_P) EV_THROW |
4225 | ev_suspend (EV_P) EV_NOEXCEPT |
3429 | { |
4226 | { |
3430 | ev_now_update (EV_A); |
4227 | ev_now_update (EV_A); |
3431 | } |
4228 | } |
3432 | |
4229 | |
3433 | void |
4230 | void |
3434 | ev_resume (EV_P) EV_THROW |
4231 | ev_resume (EV_P) EV_NOEXCEPT |
3435 | { |
4232 | { |
3436 | ev_tstamp mn_prev = mn_now; |
4233 | ev_tstamp mn_prev = mn_now; |
3437 | |
4234 | |
3438 | ev_now_update (EV_A); |
4235 | ev_now_update (EV_A); |
3439 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4236 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3456 | inline_size void |
4253 | inline_size void |
3457 | wlist_del (WL *head, WL elem) |
4254 | wlist_del (WL *head, WL elem) |
3458 | { |
4255 | { |
3459 | while (*head) |
4256 | while (*head) |
3460 | { |
4257 | { |
3461 | if (expect_true (*head == elem)) |
4258 | if (ecb_expect_true (*head == elem)) |
3462 | { |
4259 | { |
3463 | *head = elem->next; |
4260 | *head = elem->next; |
3464 | break; |
4261 | break; |
3465 | } |
4262 | } |
3466 | |
4263 | |
… | |
… | |
3478 | w->pending = 0; |
4275 | w->pending = 0; |
3479 | } |
4276 | } |
3480 | } |
4277 | } |
3481 | |
4278 | |
3482 | int |
4279 | int |
3483 | ev_clear_pending (EV_P_ void *w) EV_THROW |
4280 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3484 | { |
4281 | { |
3485 | W w_ = (W)w; |
4282 | W w_ = (W)w; |
3486 | int pending = w_->pending; |
4283 | int pending = w_->pending; |
3487 | |
4284 | |
3488 | if (expect_true (pending)) |
4285 | if (ecb_expect_true (pending)) |
3489 | { |
4286 | { |
3490 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4287 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3491 | p->w = (W)&pending_w; |
4288 | p->w = (W)&pending_w; |
3492 | w_->pending = 0; |
4289 | w_->pending = 0; |
3493 | return p->events; |
4290 | return p->events; |
… | |
… | |
3520 | w->active = 0; |
4317 | w->active = 0; |
3521 | } |
4318 | } |
3522 | |
4319 | |
3523 | /*****************************************************************************/ |
4320 | /*****************************************************************************/ |
3524 | |
4321 | |
3525 | void noinline |
4322 | ecb_noinline |
|
|
4323 | void |
3526 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
4324 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3527 | { |
4325 | { |
3528 | int fd = w->fd; |
4326 | int fd = w->fd; |
3529 | |
4327 | |
3530 | if (expect_false (ev_is_active (w))) |
4328 | if (ecb_expect_false (ev_is_active (w))) |
3531 | return; |
4329 | return; |
3532 | |
4330 | |
3533 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4331 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
3534 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4332 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3535 | |
4333 | |
|
|
4334 | #if EV_VERIFY >= 2 |
|
|
4335 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4336 | #endif |
3536 | EV_FREQUENT_CHECK; |
4337 | EV_FREQUENT_CHECK; |
3537 | |
4338 | |
3538 | ev_start (EV_A_ (W)w, 1); |
4339 | ev_start (EV_A_ (W)w, 1); |
3539 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4340 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3540 | wlist_add (&anfds[fd].head, (WL)w); |
4341 | wlist_add (&anfds[fd].head, (WL)w); |
3541 | |
4342 | |
3542 | /* common bug, apparently */ |
4343 | /* common bug, apparently */ |
3543 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
4344 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3544 | |
4345 | |
… | |
… | |
3546 | w->events &= ~EV__IOFDSET; |
4347 | w->events &= ~EV__IOFDSET; |
3547 | |
4348 | |
3548 | EV_FREQUENT_CHECK; |
4349 | EV_FREQUENT_CHECK; |
3549 | } |
4350 | } |
3550 | |
4351 | |
3551 | void noinline |
4352 | ecb_noinline |
|
|
4353 | void |
3552 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
4354 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3553 | { |
4355 | { |
3554 | clear_pending (EV_A_ (W)w); |
4356 | clear_pending (EV_A_ (W)w); |
3555 | if (expect_false (!ev_is_active (w))) |
4357 | if (ecb_expect_false (!ev_is_active (w))) |
3556 | return; |
4358 | return; |
3557 | |
4359 | |
3558 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4360 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3559 | |
4361 | |
|
|
4362 | #if EV_VERIFY >= 2 |
|
|
4363 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4364 | #endif |
3560 | EV_FREQUENT_CHECK; |
4365 | EV_FREQUENT_CHECK; |
3561 | |
4366 | |
3562 | wlist_del (&anfds[w->fd].head, (WL)w); |
4367 | wlist_del (&anfds[w->fd].head, (WL)w); |
3563 | ev_stop (EV_A_ (W)w); |
4368 | ev_stop (EV_A_ (W)w); |
3564 | |
4369 | |
3565 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
4370 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3566 | |
4371 | |
3567 | EV_FREQUENT_CHECK; |
4372 | EV_FREQUENT_CHECK; |
3568 | } |
4373 | } |
3569 | |
4374 | |
3570 | void noinline |
4375 | ecb_noinline |
|
|
4376 | void |
3571 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
4377 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3572 | { |
4378 | { |
3573 | if (expect_false (ev_is_active (w))) |
4379 | if (ecb_expect_false (ev_is_active (w))) |
3574 | return; |
4380 | return; |
3575 | |
4381 | |
3576 | ev_at (w) += mn_now; |
4382 | ev_at (w) += mn_now; |
3577 | |
4383 | |
3578 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4384 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3579 | |
4385 | |
3580 | EV_FREQUENT_CHECK; |
4386 | EV_FREQUENT_CHECK; |
3581 | |
4387 | |
3582 | ++timercnt; |
4388 | ++timercnt; |
3583 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4389 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3584 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4390 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3585 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4391 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3586 | ANHE_at_cache (timers [ev_active (w)]); |
4392 | ANHE_at_cache (timers [ev_active (w)]); |
3587 | upheap (timers, ev_active (w)); |
4393 | upheap (timers, ev_active (w)); |
3588 | |
4394 | |
3589 | EV_FREQUENT_CHECK; |
4395 | EV_FREQUENT_CHECK; |
3590 | |
4396 | |
3591 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4397 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3592 | } |
4398 | } |
3593 | |
4399 | |
3594 | void noinline |
4400 | ecb_noinline |
|
|
4401 | void |
3595 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
4402 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3596 | { |
4403 | { |
3597 | clear_pending (EV_A_ (W)w); |
4404 | clear_pending (EV_A_ (W)w); |
3598 | if (expect_false (!ev_is_active (w))) |
4405 | if (ecb_expect_false (!ev_is_active (w))) |
3599 | return; |
4406 | return; |
3600 | |
4407 | |
3601 | EV_FREQUENT_CHECK; |
4408 | EV_FREQUENT_CHECK; |
3602 | |
4409 | |
3603 | { |
4410 | { |
… | |
… | |
3605 | |
4412 | |
3606 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4413 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
3607 | |
4414 | |
3608 | --timercnt; |
4415 | --timercnt; |
3609 | |
4416 | |
3610 | if (expect_true (active < timercnt + HEAP0)) |
4417 | if (ecb_expect_true (active < timercnt + HEAP0)) |
3611 | { |
4418 | { |
3612 | timers [active] = timers [timercnt + HEAP0]; |
4419 | timers [active] = timers [timercnt + HEAP0]; |
3613 | adjustheap (timers, timercnt, active); |
4420 | adjustheap (timers, timercnt, active); |
3614 | } |
4421 | } |
3615 | } |
4422 | } |
… | |
… | |
3619 | ev_stop (EV_A_ (W)w); |
4426 | ev_stop (EV_A_ (W)w); |
3620 | |
4427 | |
3621 | EV_FREQUENT_CHECK; |
4428 | EV_FREQUENT_CHECK; |
3622 | } |
4429 | } |
3623 | |
4430 | |
3624 | void noinline |
4431 | ecb_noinline |
|
|
4432 | void |
3625 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4433 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3626 | { |
4434 | { |
3627 | EV_FREQUENT_CHECK; |
4435 | EV_FREQUENT_CHECK; |
3628 | |
4436 | |
3629 | clear_pending (EV_A_ (W)w); |
4437 | clear_pending (EV_A_ (W)w); |
3630 | |
4438 | |
… | |
… | |
3647 | |
4455 | |
3648 | EV_FREQUENT_CHECK; |
4456 | EV_FREQUENT_CHECK; |
3649 | } |
4457 | } |
3650 | |
4458 | |
3651 | ev_tstamp |
4459 | ev_tstamp |
3652 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4460 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3653 | { |
4461 | { |
3654 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4462 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
3655 | } |
4463 | } |
3656 | |
4464 | |
3657 | #if EV_PERIODIC_ENABLE |
4465 | #if EV_PERIODIC_ENABLE |
3658 | void noinline |
4466 | ecb_noinline |
|
|
4467 | void |
3659 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4468 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3660 | { |
4469 | { |
3661 | if (expect_false (ev_is_active (w))) |
4470 | if (ecb_expect_false (ev_is_active (w))) |
3662 | return; |
4471 | return; |
|
|
4472 | |
|
|
4473 | #if EV_USE_TIMERFD |
|
|
4474 | if (timerfd == -2) |
|
|
4475 | evtimerfd_init (EV_A); |
|
|
4476 | #endif |
3663 | |
4477 | |
3664 | if (w->reschedule_cb) |
4478 | if (w->reschedule_cb) |
3665 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4479 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3666 | else if (w->interval) |
4480 | else if (w->interval) |
3667 | { |
4481 | { |
… | |
… | |
3673 | |
4487 | |
3674 | EV_FREQUENT_CHECK; |
4488 | EV_FREQUENT_CHECK; |
3675 | |
4489 | |
3676 | ++periodiccnt; |
4490 | ++periodiccnt; |
3677 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4491 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3678 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4492 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3679 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4493 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3680 | ANHE_at_cache (periodics [ev_active (w)]); |
4494 | ANHE_at_cache (periodics [ev_active (w)]); |
3681 | upheap (periodics, ev_active (w)); |
4495 | upheap (periodics, ev_active (w)); |
3682 | |
4496 | |
3683 | EV_FREQUENT_CHECK; |
4497 | EV_FREQUENT_CHECK; |
3684 | |
4498 | |
3685 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4499 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3686 | } |
4500 | } |
3687 | |
4501 | |
3688 | void noinline |
4502 | ecb_noinline |
|
|
4503 | void |
3689 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4504 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3690 | { |
4505 | { |
3691 | clear_pending (EV_A_ (W)w); |
4506 | clear_pending (EV_A_ (W)w); |
3692 | if (expect_false (!ev_is_active (w))) |
4507 | if (ecb_expect_false (!ev_is_active (w))) |
3693 | return; |
4508 | return; |
3694 | |
4509 | |
3695 | EV_FREQUENT_CHECK; |
4510 | EV_FREQUENT_CHECK; |
3696 | |
4511 | |
3697 | { |
4512 | { |
… | |
… | |
3699 | |
4514 | |
3700 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4515 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
3701 | |
4516 | |
3702 | --periodiccnt; |
4517 | --periodiccnt; |
3703 | |
4518 | |
3704 | if (expect_true (active < periodiccnt + HEAP0)) |
4519 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
3705 | { |
4520 | { |
3706 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4521 | periodics [active] = periodics [periodiccnt + HEAP0]; |
3707 | adjustheap (periodics, periodiccnt, active); |
4522 | adjustheap (periodics, periodiccnt, active); |
3708 | } |
4523 | } |
3709 | } |
4524 | } |
… | |
… | |
3711 | ev_stop (EV_A_ (W)w); |
4526 | ev_stop (EV_A_ (W)w); |
3712 | |
4527 | |
3713 | EV_FREQUENT_CHECK; |
4528 | EV_FREQUENT_CHECK; |
3714 | } |
4529 | } |
3715 | |
4530 | |
3716 | void noinline |
4531 | ecb_noinline |
|
|
4532 | void |
3717 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4533 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3718 | { |
4534 | { |
3719 | /* TODO: use adjustheap and recalculation */ |
4535 | /* TODO: use adjustheap and recalculation */ |
3720 | ev_periodic_stop (EV_A_ w); |
4536 | ev_periodic_stop (EV_A_ w); |
3721 | ev_periodic_start (EV_A_ w); |
4537 | ev_periodic_start (EV_A_ w); |
3722 | } |
4538 | } |
… | |
… | |
3726 | # define SA_RESTART 0 |
4542 | # define SA_RESTART 0 |
3727 | #endif |
4543 | #endif |
3728 | |
4544 | |
3729 | #if EV_SIGNAL_ENABLE |
4545 | #if EV_SIGNAL_ENABLE |
3730 | |
4546 | |
3731 | void noinline |
4547 | ecb_noinline |
|
|
4548 | void |
3732 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4549 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3733 | { |
4550 | { |
3734 | if (expect_false (ev_is_active (w))) |
4551 | if (ecb_expect_false (ev_is_active (w))) |
3735 | return; |
4552 | return; |
3736 | |
4553 | |
3737 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4554 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3738 | |
4555 | |
3739 | #if EV_MULTIPLICITY |
4556 | #if EV_MULTIPLICITY |
… | |
… | |
3808 | } |
4625 | } |
3809 | |
4626 | |
3810 | EV_FREQUENT_CHECK; |
4627 | EV_FREQUENT_CHECK; |
3811 | } |
4628 | } |
3812 | |
4629 | |
3813 | void noinline |
4630 | ecb_noinline |
|
|
4631 | void |
3814 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4632 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3815 | { |
4633 | { |
3816 | clear_pending (EV_A_ (W)w); |
4634 | clear_pending (EV_A_ (W)w); |
3817 | if (expect_false (!ev_is_active (w))) |
4635 | if (ecb_expect_false (!ev_is_active (w))) |
3818 | return; |
4636 | return; |
3819 | |
4637 | |
3820 | EV_FREQUENT_CHECK; |
4638 | EV_FREQUENT_CHECK; |
3821 | |
4639 | |
3822 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4640 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
… | |
… | |
3850 | #endif |
4668 | #endif |
3851 | |
4669 | |
3852 | #if EV_CHILD_ENABLE |
4670 | #if EV_CHILD_ENABLE |
3853 | |
4671 | |
3854 | void |
4672 | void |
3855 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4673 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3856 | { |
4674 | { |
3857 | #if EV_MULTIPLICITY |
4675 | #if EV_MULTIPLICITY |
3858 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4676 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3859 | #endif |
4677 | #endif |
3860 | if (expect_false (ev_is_active (w))) |
4678 | if (ecb_expect_false (ev_is_active (w))) |
3861 | return; |
4679 | return; |
3862 | |
4680 | |
3863 | EV_FREQUENT_CHECK; |
4681 | EV_FREQUENT_CHECK; |
3864 | |
4682 | |
3865 | ev_start (EV_A_ (W)w, 1); |
4683 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
3867 | |
4685 | |
3868 | EV_FREQUENT_CHECK; |
4686 | EV_FREQUENT_CHECK; |
3869 | } |
4687 | } |
3870 | |
4688 | |
3871 | void |
4689 | void |
3872 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4690 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3873 | { |
4691 | { |
3874 | clear_pending (EV_A_ (W)w); |
4692 | clear_pending (EV_A_ (W)w); |
3875 | if (expect_false (!ev_is_active (w))) |
4693 | if (ecb_expect_false (!ev_is_active (w))) |
3876 | return; |
4694 | return; |
3877 | |
4695 | |
3878 | EV_FREQUENT_CHECK; |
4696 | EV_FREQUENT_CHECK; |
3879 | |
4697 | |
3880 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
4698 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
… | |
… | |
3894 | |
4712 | |
3895 | #define DEF_STAT_INTERVAL 5.0074891 |
4713 | #define DEF_STAT_INTERVAL 5.0074891 |
3896 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4714 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3897 | #define MIN_STAT_INTERVAL 0.1074891 |
4715 | #define MIN_STAT_INTERVAL 0.1074891 |
3898 | |
4716 | |
3899 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4717 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3900 | |
4718 | |
3901 | #if EV_USE_INOTIFY |
4719 | #if EV_USE_INOTIFY |
3902 | |
4720 | |
3903 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4721 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3904 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4722 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3905 | |
4723 | |
3906 | static void noinline |
4724 | ecb_noinline |
|
|
4725 | static void |
3907 | infy_add (EV_P_ ev_stat *w) |
4726 | infy_add (EV_P_ ev_stat *w) |
3908 | { |
4727 | { |
3909 | w->wd = inotify_add_watch (fs_fd, w->path, |
4728 | w->wd = inotify_add_watch (fs_fd, w->path, |
3910 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4729 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3911 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4730 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
3975 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4794 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3976 | ev_timer_again (EV_A_ &w->timer); |
4795 | ev_timer_again (EV_A_ &w->timer); |
3977 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4796 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3978 | } |
4797 | } |
3979 | |
4798 | |
3980 | static void noinline |
4799 | ecb_noinline |
|
|
4800 | static void |
3981 | infy_del (EV_P_ ev_stat *w) |
4801 | infy_del (EV_P_ ev_stat *w) |
3982 | { |
4802 | { |
3983 | int slot; |
4803 | int slot; |
3984 | int wd = w->wd; |
4804 | int wd = w->wd; |
3985 | |
4805 | |
… | |
… | |
3992 | |
4812 | |
3993 | /* remove this watcher, if others are watching it, they will rearm */ |
4813 | /* remove this watcher, if others are watching it, they will rearm */ |
3994 | inotify_rm_watch (fs_fd, wd); |
4814 | inotify_rm_watch (fs_fd, wd); |
3995 | } |
4815 | } |
3996 | |
4816 | |
3997 | static void noinline |
4817 | ecb_noinline |
|
|
4818 | static void |
3998 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4819 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3999 | { |
4820 | { |
4000 | if (slot < 0) |
4821 | if (slot < 0) |
4001 | /* overflow, need to check for all hash slots */ |
4822 | /* overflow, need to check for all hash slots */ |
4002 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4823 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4038 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4859 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4039 | ofs += sizeof (struct inotify_event) + ev->len; |
4860 | ofs += sizeof (struct inotify_event) + ev->len; |
4040 | } |
4861 | } |
4041 | } |
4862 | } |
4042 | |
4863 | |
4043 | inline_size void ecb_cold |
4864 | inline_size ecb_cold |
|
|
4865 | void |
4044 | ev_check_2625 (EV_P) |
4866 | ev_check_2625 (EV_P) |
4045 | { |
4867 | { |
4046 | /* kernels < 2.6.25 are borked |
4868 | /* kernels < 2.6.25 are borked |
4047 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4869 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4048 | */ |
4870 | */ |
… | |
… | |
4138 | #else |
4960 | #else |
4139 | # define EV_LSTAT(p,b) lstat (p, b) |
4961 | # define EV_LSTAT(p,b) lstat (p, b) |
4140 | #endif |
4962 | #endif |
4141 | |
4963 | |
4142 | void |
4964 | void |
4143 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4965 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4144 | { |
4966 | { |
4145 | if (lstat (w->path, &w->attr) < 0) |
4967 | if (lstat (w->path, &w->attr) < 0) |
4146 | w->attr.st_nlink = 0; |
4968 | w->attr.st_nlink = 0; |
4147 | else if (!w->attr.st_nlink) |
4969 | else if (!w->attr.st_nlink) |
4148 | w->attr.st_nlink = 1; |
4970 | w->attr.st_nlink = 1; |
4149 | } |
4971 | } |
4150 | |
4972 | |
4151 | static void noinline |
4973 | ecb_noinline |
|
|
4974 | static void |
4152 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4975 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4153 | { |
4976 | { |
4154 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4977 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4155 | |
4978 | |
4156 | ev_statdata prev = w->attr; |
4979 | ev_statdata prev = w->attr; |
… | |
… | |
4187 | ev_feed_event (EV_A_ w, EV_STAT); |
5010 | ev_feed_event (EV_A_ w, EV_STAT); |
4188 | } |
5011 | } |
4189 | } |
5012 | } |
4190 | |
5013 | |
4191 | void |
5014 | void |
4192 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
5015 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4193 | { |
5016 | { |
4194 | if (expect_false (ev_is_active (w))) |
5017 | if (ecb_expect_false (ev_is_active (w))) |
4195 | return; |
5018 | return; |
4196 | |
5019 | |
4197 | ev_stat_stat (EV_A_ w); |
5020 | ev_stat_stat (EV_A_ w); |
4198 | |
5021 | |
4199 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
5022 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
4218 | |
5041 | |
4219 | EV_FREQUENT_CHECK; |
5042 | EV_FREQUENT_CHECK; |
4220 | } |
5043 | } |
4221 | |
5044 | |
4222 | void |
5045 | void |
4223 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
5046 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4224 | { |
5047 | { |
4225 | clear_pending (EV_A_ (W)w); |
5048 | clear_pending (EV_A_ (W)w); |
4226 | if (expect_false (!ev_is_active (w))) |
5049 | if (ecb_expect_false (!ev_is_active (w))) |
4227 | return; |
5050 | return; |
4228 | |
5051 | |
4229 | EV_FREQUENT_CHECK; |
5052 | EV_FREQUENT_CHECK; |
4230 | |
5053 | |
4231 | #if EV_USE_INOTIFY |
5054 | #if EV_USE_INOTIFY |
… | |
… | |
4244 | } |
5067 | } |
4245 | #endif |
5068 | #endif |
4246 | |
5069 | |
4247 | #if EV_IDLE_ENABLE |
5070 | #if EV_IDLE_ENABLE |
4248 | void |
5071 | void |
4249 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
5072 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4250 | { |
5073 | { |
4251 | if (expect_false (ev_is_active (w))) |
5074 | if (ecb_expect_false (ev_is_active (w))) |
4252 | return; |
5075 | return; |
4253 | |
5076 | |
4254 | pri_adjust (EV_A_ (W)w); |
5077 | pri_adjust (EV_A_ (W)w); |
4255 | |
5078 | |
4256 | EV_FREQUENT_CHECK; |
5079 | EV_FREQUENT_CHECK; |
… | |
… | |
4259 | int active = ++idlecnt [ABSPRI (w)]; |
5082 | int active = ++idlecnt [ABSPRI (w)]; |
4260 | |
5083 | |
4261 | ++idleall; |
5084 | ++idleall; |
4262 | ev_start (EV_A_ (W)w, active); |
5085 | ev_start (EV_A_ (W)w, active); |
4263 | |
5086 | |
4264 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
5087 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4265 | idles [ABSPRI (w)][active - 1] = w; |
5088 | idles [ABSPRI (w)][active - 1] = w; |
4266 | } |
5089 | } |
4267 | |
5090 | |
4268 | EV_FREQUENT_CHECK; |
5091 | EV_FREQUENT_CHECK; |
4269 | } |
5092 | } |
4270 | |
5093 | |
4271 | void |
5094 | void |
4272 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
5095 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4273 | { |
5096 | { |
4274 | clear_pending (EV_A_ (W)w); |
5097 | clear_pending (EV_A_ (W)w); |
4275 | if (expect_false (!ev_is_active (w))) |
5098 | if (ecb_expect_false (!ev_is_active (w))) |
4276 | return; |
5099 | return; |
4277 | |
5100 | |
4278 | EV_FREQUENT_CHECK; |
5101 | EV_FREQUENT_CHECK; |
4279 | |
5102 | |
4280 | { |
5103 | { |
… | |
… | |
4291 | } |
5114 | } |
4292 | #endif |
5115 | #endif |
4293 | |
5116 | |
4294 | #if EV_PREPARE_ENABLE |
5117 | #if EV_PREPARE_ENABLE |
4295 | void |
5118 | void |
4296 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
5119 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4297 | { |
5120 | { |
4298 | if (expect_false (ev_is_active (w))) |
5121 | if (ecb_expect_false (ev_is_active (w))) |
4299 | return; |
5122 | return; |
4300 | |
5123 | |
4301 | EV_FREQUENT_CHECK; |
5124 | EV_FREQUENT_CHECK; |
4302 | |
5125 | |
4303 | ev_start (EV_A_ (W)w, ++preparecnt); |
5126 | ev_start (EV_A_ (W)w, ++preparecnt); |
4304 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
5127 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4305 | prepares [preparecnt - 1] = w; |
5128 | prepares [preparecnt - 1] = w; |
4306 | |
5129 | |
4307 | EV_FREQUENT_CHECK; |
5130 | EV_FREQUENT_CHECK; |
4308 | } |
5131 | } |
4309 | |
5132 | |
4310 | void |
5133 | void |
4311 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
5134 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4312 | { |
5135 | { |
4313 | clear_pending (EV_A_ (W)w); |
5136 | clear_pending (EV_A_ (W)w); |
4314 | if (expect_false (!ev_is_active (w))) |
5137 | if (ecb_expect_false (!ev_is_active (w))) |
4315 | return; |
5138 | return; |
4316 | |
5139 | |
4317 | EV_FREQUENT_CHECK; |
5140 | EV_FREQUENT_CHECK; |
4318 | |
5141 | |
4319 | { |
5142 | { |
… | |
… | |
4329 | } |
5152 | } |
4330 | #endif |
5153 | #endif |
4331 | |
5154 | |
4332 | #if EV_CHECK_ENABLE |
5155 | #if EV_CHECK_ENABLE |
4333 | void |
5156 | void |
4334 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
5157 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4335 | { |
5158 | { |
4336 | if (expect_false (ev_is_active (w))) |
5159 | if (ecb_expect_false (ev_is_active (w))) |
4337 | return; |
5160 | return; |
4338 | |
5161 | |
4339 | EV_FREQUENT_CHECK; |
5162 | EV_FREQUENT_CHECK; |
4340 | |
5163 | |
4341 | ev_start (EV_A_ (W)w, ++checkcnt); |
5164 | ev_start (EV_A_ (W)w, ++checkcnt); |
4342 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5165 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4343 | checks [checkcnt - 1] = w; |
5166 | checks [checkcnt - 1] = w; |
4344 | |
5167 | |
4345 | EV_FREQUENT_CHECK; |
5168 | EV_FREQUENT_CHECK; |
4346 | } |
5169 | } |
4347 | |
5170 | |
4348 | void |
5171 | void |
4349 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
5172 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4350 | { |
5173 | { |
4351 | clear_pending (EV_A_ (W)w); |
5174 | clear_pending (EV_A_ (W)w); |
4352 | if (expect_false (!ev_is_active (w))) |
5175 | if (ecb_expect_false (!ev_is_active (w))) |
4353 | return; |
5176 | return; |
4354 | |
5177 | |
4355 | EV_FREQUENT_CHECK; |
5178 | EV_FREQUENT_CHECK; |
4356 | |
5179 | |
4357 | { |
5180 | { |
… | |
… | |
4366 | EV_FREQUENT_CHECK; |
5189 | EV_FREQUENT_CHECK; |
4367 | } |
5190 | } |
4368 | #endif |
5191 | #endif |
4369 | |
5192 | |
4370 | #if EV_EMBED_ENABLE |
5193 | #if EV_EMBED_ENABLE |
4371 | void noinline |
5194 | ecb_noinline |
|
|
5195 | void |
4372 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
5196 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4373 | { |
5197 | { |
4374 | ev_run (w->other, EVRUN_NOWAIT); |
5198 | ev_run (w->other, EVRUN_NOWAIT); |
4375 | } |
5199 | } |
4376 | |
5200 | |
4377 | static void |
5201 | static void |
… | |
… | |
4399 | ev_run (EV_A_ EVRUN_NOWAIT); |
5223 | ev_run (EV_A_ EVRUN_NOWAIT); |
4400 | } |
5224 | } |
4401 | } |
5225 | } |
4402 | } |
5226 | } |
4403 | |
5227 | |
|
|
5228 | #if EV_FORK_ENABLE |
4404 | static void |
5229 | static void |
4405 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5230 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
4406 | { |
5231 | { |
4407 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5232 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4408 | |
5233 | |
… | |
… | |
4415 | ev_run (EV_A_ EVRUN_NOWAIT); |
5240 | ev_run (EV_A_ EVRUN_NOWAIT); |
4416 | } |
5241 | } |
4417 | |
5242 | |
4418 | ev_embed_start (EV_A_ w); |
5243 | ev_embed_start (EV_A_ w); |
4419 | } |
5244 | } |
|
|
5245 | #endif |
4420 | |
5246 | |
4421 | #if 0 |
5247 | #if 0 |
4422 | static void |
5248 | static void |
4423 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5249 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4424 | { |
5250 | { |
4425 | ev_idle_stop (EV_A_ idle); |
5251 | ev_idle_stop (EV_A_ idle); |
4426 | } |
5252 | } |
4427 | #endif |
5253 | #endif |
4428 | |
5254 | |
4429 | void |
5255 | void |
4430 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
5256 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4431 | { |
5257 | { |
4432 | if (expect_false (ev_is_active (w))) |
5258 | if (ecb_expect_false (ev_is_active (w))) |
4433 | return; |
5259 | return; |
4434 | |
5260 | |
4435 | { |
5261 | { |
4436 | EV_P = w->other; |
5262 | EV_P = w->other; |
4437 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5263 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
… | |
… | |
4445 | |
5271 | |
4446 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5272 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4447 | ev_set_priority (&w->prepare, EV_MINPRI); |
5273 | ev_set_priority (&w->prepare, EV_MINPRI); |
4448 | ev_prepare_start (EV_A_ &w->prepare); |
5274 | ev_prepare_start (EV_A_ &w->prepare); |
4449 | |
5275 | |
|
|
5276 | #if EV_FORK_ENABLE |
4450 | ev_fork_init (&w->fork, embed_fork_cb); |
5277 | ev_fork_init (&w->fork, embed_fork_cb); |
4451 | ev_fork_start (EV_A_ &w->fork); |
5278 | ev_fork_start (EV_A_ &w->fork); |
|
|
5279 | #endif |
4452 | |
5280 | |
4453 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5281 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4454 | |
5282 | |
4455 | ev_start (EV_A_ (W)w, 1); |
5283 | ev_start (EV_A_ (W)w, 1); |
4456 | |
5284 | |
4457 | EV_FREQUENT_CHECK; |
5285 | EV_FREQUENT_CHECK; |
4458 | } |
5286 | } |
4459 | |
5287 | |
4460 | void |
5288 | void |
4461 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
5289 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4462 | { |
5290 | { |
4463 | clear_pending (EV_A_ (W)w); |
5291 | clear_pending (EV_A_ (W)w); |
4464 | if (expect_false (!ev_is_active (w))) |
5292 | if (ecb_expect_false (!ev_is_active (w))) |
4465 | return; |
5293 | return; |
4466 | |
5294 | |
4467 | EV_FREQUENT_CHECK; |
5295 | EV_FREQUENT_CHECK; |
4468 | |
5296 | |
4469 | ev_io_stop (EV_A_ &w->io); |
5297 | ev_io_stop (EV_A_ &w->io); |
4470 | ev_prepare_stop (EV_A_ &w->prepare); |
5298 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5299 | #if EV_FORK_ENABLE |
4471 | ev_fork_stop (EV_A_ &w->fork); |
5300 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5301 | #endif |
4472 | |
5302 | |
4473 | ev_stop (EV_A_ (W)w); |
5303 | ev_stop (EV_A_ (W)w); |
4474 | |
5304 | |
4475 | EV_FREQUENT_CHECK; |
5305 | EV_FREQUENT_CHECK; |
4476 | } |
5306 | } |
4477 | #endif |
5307 | #endif |
4478 | |
5308 | |
4479 | #if EV_FORK_ENABLE |
5309 | #if EV_FORK_ENABLE |
4480 | void |
5310 | void |
4481 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
5311 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4482 | { |
5312 | { |
4483 | if (expect_false (ev_is_active (w))) |
5313 | if (ecb_expect_false (ev_is_active (w))) |
4484 | return; |
5314 | return; |
4485 | |
5315 | |
4486 | EV_FREQUENT_CHECK; |
5316 | EV_FREQUENT_CHECK; |
4487 | |
5317 | |
4488 | ev_start (EV_A_ (W)w, ++forkcnt); |
5318 | ev_start (EV_A_ (W)w, ++forkcnt); |
4489 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5319 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4490 | forks [forkcnt - 1] = w; |
5320 | forks [forkcnt - 1] = w; |
4491 | |
5321 | |
4492 | EV_FREQUENT_CHECK; |
5322 | EV_FREQUENT_CHECK; |
4493 | } |
5323 | } |
4494 | |
5324 | |
4495 | void |
5325 | void |
4496 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
5326 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4497 | { |
5327 | { |
4498 | clear_pending (EV_A_ (W)w); |
5328 | clear_pending (EV_A_ (W)w); |
4499 | if (expect_false (!ev_is_active (w))) |
5329 | if (ecb_expect_false (!ev_is_active (w))) |
4500 | return; |
5330 | return; |
4501 | |
5331 | |
4502 | EV_FREQUENT_CHECK; |
5332 | EV_FREQUENT_CHECK; |
4503 | |
5333 | |
4504 | { |
5334 | { |
… | |
… | |
4514 | } |
5344 | } |
4515 | #endif |
5345 | #endif |
4516 | |
5346 | |
4517 | #if EV_CLEANUP_ENABLE |
5347 | #if EV_CLEANUP_ENABLE |
4518 | void |
5348 | void |
4519 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
5349 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4520 | { |
5350 | { |
4521 | if (expect_false (ev_is_active (w))) |
5351 | if (ecb_expect_false (ev_is_active (w))) |
4522 | return; |
5352 | return; |
4523 | |
5353 | |
4524 | EV_FREQUENT_CHECK; |
5354 | EV_FREQUENT_CHECK; |
4525 | |
5355 | |
4526 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
5356 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4527 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
5357 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4528 | cleanups [cleanupcnt - 1] = w; |
5358 | cleanups [cleanupcnt - 1] = w; |
4529 | |
5359 | |
4530 | /* cleanup watchers should never keep a refcount on the loop */ |
5360 | /* cleanup watchers should never keep a refcount on the loop */ |
4531 | ev_unref (EV_A); |
5361 | ev_unref (EV_A); |
4532 | EV_FREQUENT_CHECK; |
5362 | EV_FREQUENT_CHECK; |
4533 | } |
5363 | } |
4534 | |
5364 | |
4535 | void |
5365 | void |
4536 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
5366 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4537 | { |
5367 | { |
4538 | clear_pending (EV_A_ (W)w); |
5368 | clear_pending (EV_A_ (W)w); |
4539 | if (expect_false (!ev_is_active (w))) |
5369 | if (ecb_expect_false (!ev_is_active (w))) |
4540 | return; |
5370 | return; |
4541 | |
5371 | |
4542 | EV_FREQUENT_CHECK; |
5372 | EV_FREQUENT_CHECK; |
4543 | ev_ref (EV_A); |
5373 | ev_ref (EV_A); |
4544 | |
5374 | |
… | |
… | |
4555 | } |
5385 | } |
4556 | #endif |
5386 | #endif |
4557 | |
5387 | |
4558 | #if EV_ASYNC_ENABLE |
5388 | #if EV_ASYNC_ENABLE |
4559 | void |
5389 | void |
4560 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
5390 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4561 | { |
5391 | { |
4562 | if (expect_false (ev_is_active (w))) |
5392 | if (ecb_expect_false (ev_is_active (w))) |
4563 | return; |
5393 | return; |
4564 | |
5394 | |
4565 | w->sent = 0; |
5395 | w->sent = 0; |
4566 | |
5396 | |
4567 | evpipe_init (EV_A); |
5397 | evpipe_init (EV_A); |
4568 | |
5398 | |
4569 | EV_FREQUENT_CHECK; |
5399 | EV_FREQUENT_CHECK; |
4570 | |
5400 | |
4571 | ev_start (EV_A_ (W)w, ++asynccnt); |
5401 | ev_start (EV_A_ (W)w, ++asynccnt); |
4572 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5402 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4573 | asyncs [asynccnt - 1] = w; |
5403 | asyncs [asynccnt - 1] = w; |
4574 | |
5404 | |
4575 | EV_FREQUENT_CHECK; |
5405 | EV_FREQUENT_CHECK; |
4576 | } |
5406 | } |
4577 | |
5407 | |
4578 | void |
5408 | void |
4579 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
5409 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4580 | { |
5410 | { |
4581 | clear_pending (EV_A_ (W)w); |
5411 | clear_pending (EV_A_ (W)w); |
4582 | if (expect_false (!ev_is_active (w))) |
5412 | if (ecb_expect_false (!ev_is_active (w))) |
4583 | return; |
5413 | return; |
4584 | |
5414 | |
4585 | EV_FREQUENT_CHECK; |
5415 | EV_FREQUENT_CHECK; |
4586 | |
5416 | |
4587 | { |
5417 | { |
… | |
… | |
4595 | |
5425 | |
4596 | EV_FREQUENT_CHECK; |
5426 | EV_FREQUENT_CHECK; |
4597 | } |
5427 | } |
4598 | |
5428 | |
4599 | void |
5429 | void |
4600 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5430 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4601 | { |
5431 | { |
4602 | w->sent = 1; |
5432 | w->sent = 1; |
4603 | evpipe_write (EV_A_ &async_pending); |
5433 | evpipe_write (EV_A_ &async_pending); |
4604 | } |
5434 | } |
4605 | #endif |
5435 | #endif |
… | |
… | |
4642 | |
5472 | |
4643 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5473 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4644 | } |
5474 | } |
4645 | |
5475 | |
4646 | void |
5476 | void |
4647 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5477 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4648 | { |
5478 | { |
4649 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5479 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4650 | |
|
|
4651 | if (expect_false (!once)) |
|
|
4652 | { |
|
|
4653 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4654 | return; |
|
|
4655 | } |
|
|
4656 | |
5480 | |
4657 | once->cb = cb; |
5481 | once->cb = cb; |
4658 | once->arg = arg; |
5482 | once->arg = arg; |
4659 | |
5483 | |
4660 | ev_init (&once->io, once_cb_io); |
5484 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4673 | } |
5497 | } |
4674 | |
5498 | |
4675 | /*****************************************************************************/ |
5499 | /*****************************************************************************/ |
4676 | |
5500 | |
4677 | #if EV_WALK_ENABLE |
5501 | #if EV_WALK_ENABLE |
4678 | void ecb_cold |
5502 | ecb_cold |
|
|
5503 | void |
4679 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5504 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4680 | { |
5505 | { |
4681 | int i, j; |
5506 | int i, j; |
4682 | ev_watcher_list *wl, *wn; |
5507 | ev_watcher_list *wl, *wn; |
4683 | |
5508 | |
4684 | if (types & (EV_IO | EV_EMBED)) |
5509 | if (types & (EV_IO | EV_EMBED)) |