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 |
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|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
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|
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 |
… | |
… | |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
114 | # endif |
114 | # endif |
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 |
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|
118 | # endif |
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119 | |
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120 | # if HAVE_LINUX_AIO_ABI_H |
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121 | # ifndef EV_USE_LINUXAIO |
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122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
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123 | # endif |
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124 | # else |
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125 | # undef EV_USE_LINUXAIO |
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126 | # define EV_USE_LINUXAIO 0 |
118 | # endif |
127 | # endif |
119 | |
128 | |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
121 | # ifndef EV_USE_KQUEUE |
130 | # ifndef EV_USE_KQUEUE |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
… | |
… | |
162 | # define EV_USE_EVENTFD 0 |
171 | # define EV_USE_EVENTFD 0 |
163 | # endif |
172 | # endif |
164 | |
173 | |
165 | #endif |
174 | #endif |
166 | |
175 | |
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|
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
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177 | * a limit of 1024 into their select. Where people have brains, |
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178 | * OS X engineers apparently have a vacuum. Or maybe they were |
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179 | * ordered to have a vacuum, or they do anything for money. |
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180 | * This might help. Or not. |
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181 | * Note that this must be defined early, as other include files |
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182 | * will rely on this define as well. |
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183 | */ |
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184 | #define _DARWIN_UNLIMITED_SELECT 1 |
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185 | |
167 | #include <stdlib.h> |
186 | #include <stdlib.h> |
168 | #include <string.h> |
187 | #include <string.h> |
169 | #include <fcntl.h> |
188 | #include <fcntl.h> |
170 | #include <stddef.h> |
189 | #include <stddef.h> |
171 | |
190 | |
… | |
… | |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
229 | # endif |
211 | # undef EV_AVOID_STDIO |
230 | # undef EV_AVOID_STDIO |
212 | #endif |
231 | #endif |
213 | |
|
|
214 | /* OS X, in its infinite idiocy, actually HARDCODES |
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215 | * a limit of 1024 into their select. Where people have brains, |
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
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217 | * ordered to have a vacuum, or they do anything for money. |
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218 | * This might help. Or not. |
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219 | */ |
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220 | #define _DARWIN_UNLIMITED_SELECT 1 |
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221 | |
232 | |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
233 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
223 | |
234 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
235 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
236 | #if defined EV_NSIG |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
252 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
254 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
256 | #else |
246 | # error "unable to find value for NSIG, please report" |
257 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
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248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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250 | #endif |
258 | #endif |
251 | |
259 | |
252 | #ifndef EV_USE_FLOOR |
260 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
261 | # define EV_USE_FLOOR 0 |
254 | #endif |
262 | #endif |
255 | |
263 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
267 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
268 | # define EV_USE_CLOCK_SYSCALL 0 |
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269 | # endif |
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270 | #endif |
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271 | |
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272 | #if !(_POSIX_TIMERS > 0) |
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273 | # ifndef EV_USE_MONOTONIC |
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274 | # define EV_USE_MONOTONIC 0 |
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275 | # endif |
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276 | # ifndef EV_USE_REALTIME |
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|
277 | # define EV_USE_REALTIME 0 |
261 | # endif |
278 | # endif |
262 | #endif |
279 | #endif |
263 | |
280 | |
264 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
307 | |
324 | |
308 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
309 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
310 | #endif |
327 | #endif |
311 | |
328 | |
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329 | #ifndef EV_USE_LINUXAIO |
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330 | # define EV_USE_LINUXAIO 0 |
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|
331 | #endif |
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332 | |
312 | #ifndef EV_USE_INOTIFY |
333 | #ifndef EV_USE_INOTIFY |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
334 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
335 | # define EV_USE_INOTIFY EV_FEATURE_OS |
315 | # else |
336 | # else |
316 | # define EV_USE_INOTIFY 0 |
337 | # define EV_USE_INOTIFY 0 |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
376 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
377 | #endif |
357 | |
378 | |
358 | #ifndef EV_HEAP_CACHE_AT |
379 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
380 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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|
381 | #endif |
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382 | |
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383 | #ifdef __ANDROID__ |
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384 | /* supposedly, android doesn't typedef fd_mask */ |
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385 | # undef EV_USE_SELECT |
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386 | # define EV_USE_SELECT 0 |
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387 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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388 | # undef EV_USE_CLOCK_SYSCALL |
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389 | # define EV_USE_CLOCK_SYSCALL 0 |
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390 | #endif |
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391 | |
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392 | /* aix's poll.h seems to cause lots of trouble */ |
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393 | #ifdef _AIX |
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394 | /* AIX has a completely broken poll.h header */ |
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395 | # undef EV_USE_POLL |
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396 | # define EV_USE_POLL 0 |
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397 | #endif |
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398 | |
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399 | #if EV_USE_LINUXAIO |
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400 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
360 | #endif |
401 | #endif |
361 | |
402 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
403 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
404 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
405 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
373 | # endif |
414 | # endif |
374 | #endif |
415 | #endif |
375 | |
416 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
417 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
418 | |
378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
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382 | #endif |
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383 | |
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384 | #ifndef CLOCK_MONOTONIC |
419 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
420 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
421 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
422 | #endif |
388 | |
423 | |
… | |
… | |
398 | |
433 | |
399 | #if !EV_USE_NANOSLEEP |
434 | #if !EV_USE_NANOSLEEP |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
435 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
401 | # if !defined _WIN32 && !defined __hpux |
436 | # if !defined _WIN32 && !defined __hpux |
402 | # include <sys/select.h> |
437 | # include <sys/select.h> |
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438 | # endif |
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439 | #endif |
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440 | |
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441 | #if EV_USE_LINUXAIO |
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442 | # include <sys/syscall.h> |
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443 | # if !SYS_io_getevents |
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444 | # undef EV_USE_LINUXAIO |
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445 | # define EV_USE_LINUXAIO 0 |
403 | # endif |
446 | # endif |
404 | #endif |
447 | #endif |
405 | |
448 | |
406 | #if EV_USE_INOTIFY |
449 | #if EV_USE_INOTIFY |
407 | # include <sys/statfs.h> |
450 | # include <sys/statfs.h> |
… | |
… | |
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
518 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
476 | /* ECB.H BEGIN */ |
519 | /* ECB.H BEGIN */ |
477 | /* |
520 | /* |
478 | * libecb - http://software.schmorp.de/pkg/libecb |
521 | * libecb - http://software.schmorp.de/pkg/libecb |
479 | * |
522 | * |
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
523 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
481 | * Copyright (©) 2011 Emanuele Giaquinta |
524 | * Copyright (©) 2011 Emanuele Giaquinta |
482 | * All rights reserved. |
525 | * All rights reserved. |
483 | * |
526 | * |
484 | * Redistribution and use in source and binary forms, with or without modifica- |
527 | * Redistribution and use in source and binary forms, with or without modifica- |
485 | * tion, are permitted provided that the following conditions are met: |
528 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
542 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
543 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
544 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
545 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
546 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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547 | * |
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548 | * Alternatively, the contents of this file may be used under the terms of |
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549 | * the GNU General Public License ("GPL") version 2 or any later version, |
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550 | * in which case the provisions of the GPL are applicable instead of |
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551 | * the above. If you wish to allow the use of your version of this file |
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552 | * only under the terms of the GPL and not to allow others to use your |
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553 | * version of this file under the BSD license, indicate your decision |
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554 | * by deleting the provisions above and replace them with the notice |
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555 | * and other provisions required by the GPL. If you do not delete the |
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556 | * provisions above, a recipient may use your version of this file under |
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557 | * either the BSD or the GPL. |
504 | */ |
558 | */ |
505 | |
559 | |
506 | #ifndef ECB_H |
560 | #ifndef ECB_H |
507 | #define ECB_H |
561 | #define ECB_H |
508 | |
562 | |
509 | /* 16 bits major, 16 bits minor */ |
563 | /* 16 bits major, 16 bits minor */ |
510 | #define ECB_VERSION 0x00010001 |
564 | #define ECB_VERSION 0x00010005 |
511 | |
565 | |
512 | #ifdef _WIN32 |
566 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
567 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
568 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
569 | typedef signed short int16_t; |
… | |
… | |
530 | #else |
584 | #else |
531 | #define ECB_PTRSIZE 4 |
585 | #define ECB_PTRSIZE 4 |
532 | typedef uint32_t uintptr_t; |
586 | typedef uint32_t uintptr_t; |
533 | typedef int32_t intptr_t; |
587 | typedef int32_t intptr_t; |
534 | #endif |
588 | #endif |
535 | typedef intptr_t ptrdiff_t; |
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536 | #else |
589 | #else |
537 | #include <inttypes.h> |
590 | #include <inttypes.h> |
538 | #if UINTMAX_MAX > 0xffffffffU |
591 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
539 | #define ECB_PTRSIZE 8 |
592 | #define ECB_PTRSIZE 8 |
540 | #else |
593 | #else |
541 | #define ECB_PTRSIZE 4 |
594 | #define ECB_PTRSIZE 4 |
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595 | #endif |
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596 | #endif |
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597 | |
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598 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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599 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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600 | |
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601 | /* work around x32 idiocy by defining proper macros */ |
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602 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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603 | #if _ILP32 |
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604 | #define ECB_AMD64_X32 1 |
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605 | #else |
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606 | #define ECB_AMD64 1 |
542 | #endif |
607 | #endif |
543 | #endif |
608 | #endif |
544 | |
609 | |
545 | /* many compilers define _GNUC_ to some versions but then only implement |
610 | /* many compilers define _GNUC_ to some versions but then only implement |
546 | * what their idiot authors think are the "more important" extensions, |
611 | * what their idiot authors think are the "more important" extensions, |
547 | * causing enormous grief in return for some better fake benchmark numbers. |
612 | * causing enormous grief in return for some better fake benchmark numbers. |
548 | * or so. |
613 | * or so. |
549 | * we try to detect these and simply assume they are not gcc - if they have |
614 | * we try to detect these and simply assume they are not gcc - if they have |
550 | * an issue with that they should have done it right in the first place. |
615 | * an issue with that they should have done it right in the first place. |
551 | */ |
616 | */ |
552 | #ifndef ECB_GCC_VERSION |
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553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
617 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
554 | #define ECB_GCC_VERSION(major,minor) 0 |
618 | #define ECB_GCC_VERSION(major,minor) 0 |
555 | #else |
619 | #else |
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
620 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
557 | #endif |
621 | #endif |
558 | #endif |
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559 | |
622 | |
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
623 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
624 | |
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
625 | #if __clang__ && defined __has_builtin |
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626 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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627 | #else |
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628 | #define ECB_CLANG_BUILTIN(x) 0 |
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629 | #endif |
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630 | |
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631 | #if __clang__ && defined __has_extension |
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632 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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633 | #else |
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634 | #define ECB_CLANG_EXTENSION(x) 0 |
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635 | #endif |
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636 | |
563 | #define ECB_CPP (__cplusplus+0) |
637 | #define ECB_CPP (__cplusplus+0) |
564 | #define ECB_CPP11 (__cplusplus >= 201103L) |
638 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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639 | #define ECB_CPP14 (__cplusplus >= 201402L) |
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640 | #define ECB_CPP17 (__cplusplus >= 201703L) |
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641 | |
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642 | #if ECB_CPP |
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643 | #define ECB_C 0 |
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644 | #define ECB_STDC_VERSION 0 |
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645 | #else |
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646 | #define ECB_C 1 |
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647 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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648 | #endif |
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649 | |
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650 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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651 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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652 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
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653 | |
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654 | #if ECB_CPP |
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655 | #define ECB_EXTERN_C extern "C" |
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656 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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657 | #define ECB_EXTERN_C_END } |
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658 | #else |
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659 | #define ECB_EXTERN_C extern |
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660 | #define ECB_EXTERN_C_BEG |
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661 | #define ECB_EXTERN_C_END |
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662 | #endif |
565 | |
663 | |
566 | /*****************************************************************************/ |
664 | /*****************************************************************************/ |
567 | |
665 | |
568 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
666 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
569 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
667 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
… | |
… | |
572 | #define ECB_NO_SMP 1 |
670 | #define ECB_NO_SMP 1 |
573 | #endif |
671 | #endif |
574 | |
672 | |
575 | #if ECB_NO_SMP |
673 | #if ECB_NO_SMP |
576 | #define ECB_MEMORY_FENCE do { } while (0) |
674 | #define ECB_MEMORY_FENCE do { } while (0) |
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675 | #endif |
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676 | |
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677 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
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678 | #if __xlC__ && ECB_CPP |
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679 | #include <builtins.h> |
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680 | #endif |
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681 | |
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682 | #if 1400 <= _MSC_VER |
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683 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
577 | #endif |
684 | #endif |
578 | |
685 | |
579 | #ifndef ECB_MEMORY_FENCE |
686 | #ifndef ECB_MEMORY_FENCE |
580 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
687 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
581 | #if __i386 || __i386__ |
688 | #if __i386 || __i386__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
583 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
690 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
584 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
691 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
585 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
692 | #elif ECB_GCC_AMD64 |
586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
587 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
694 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
588 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
695 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
589 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
696 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
590 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
698 | #elif defined __ARM_ARCH_2__ \ |
|
|
699 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
700 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
701 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
702 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
703 | || defined __ARM_ARCH_5TEJ__ |
|
|
704 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
591 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
705 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
592 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
706 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
707 | || defined __ARM_ARCH_6T2__ |
593 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
708 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
594 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
709 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
595 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
710 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
596 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
711 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
597 | #elif __sparc || __sparc__ |
712 | #elif __aarch64__ |
|
|
713 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
714 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
598 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
715 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
599 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
716 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
600 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
717 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
601 | #elif defined __s390__ || defined __s390x__ |
718 | #elif defined __s390__ || defined __s390x__ |
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
719 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
603 | #elif defined __mips__ |
720 | #elif defined __mips__ |
|
|
721 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
722 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
604 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
723 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
605 | #elif defined __alpha__ |
724 | #elif defined __alpha__ |
606 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
725 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
607 | #elif defined __hppa__ |
726 | #elif defined __hppa__ |
608 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
727 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
728 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
610 | #elif defined __ia64__ |
729 | #elif defined __ia64__ |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
730 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
731 | #elif defined __m68k__ |
|
|
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
733 | #elif defined __m88k__ |
|
|
734 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
735 | #elif defined __sh__ |
|
|
736 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
612 | #endif |
737 | #endif |
613 | #endif |
738 | #endif |
614 | #endif |
739 | #endif |
615 | |
740 | |
616 | #ifndef ECB_MEMORY_FENCE |
741 | #ifndef ECB_MEMORY_FENCE |
617 | #if ECB_GCC_VERSION(4,7) |
742 | #if ECB_GCC_VERSION(4,7) |
618 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
743 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
619 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
744 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
620 | #elif defined __clang && __has_feature (cxx_atomic) |
745 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
746 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
747 | |
|
|
748 | #elif ECB_CLANG_EXTENSION(c_atomic) |
621 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
749 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
622 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
750 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
751 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
752 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
753 | |
623 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
754 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
624 | #define ECB_MEMORY_FENCE __sync_synchronize () |
755 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
756 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
757 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
758 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
759 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
760 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
761 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
625 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
762 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
626 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
763 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
627 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
764 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
628 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
765 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
629 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
766 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
649 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
786 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
650 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
787 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
651 | /* for most usages, or gcc and clang have a bug */ |
788 | /* for most usages, or gcc and clang have a bug */ |
652 | /* I *currently* lean towards the latter, and inefficiently implement */ |
789 | /* I *currently* lean towards the latter, and inefficiently implement */ |
653 | /* all three of ecb's fences as a seq_cst fence */ |
790 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
791 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
792 | /* for all __atomic_thread_fence's except seq_cst */ |
654 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
793 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
655 | #endif |
794 | #endif |
656 | #endif |
795 | #endif |
657 | |
796 | |
658 | #ifndef ECB_MEMORY_FENCE |
797 | #ifndef ECB_MEMORY_FENCE |
… | |
… | |
681 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
820 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
682 | #endif |
821 | #endif |
683 | |
822 | |
684 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
685 | |
824 | |
686 | #if __cplusplus |
825 | #if ECB_CPP |
687 | #define ecb_inline static inline |
826 | #define ecb_inline static inline |
688 | #elif ECB_GCC_VERSION(2,5) |
827 | #elif ECB_GCC_VERSION(2,5) |
689 | #define ecb_inline static __inline__ |
828 | #define ecb_inline static __inline__ |
690 | #elif ECB_C99 |
829 | #elif ECB_C99 |
691 | #define ecb_inline static inline |
830 | #define ecb_inline static inline |
… | |
… | |
705 | |
844 | |
706 | #define ECB_CONCAT_(a, b) a ## b |
845 | #define ECB_CONCAT_(a, b) a ## b |
707 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
846 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
708 | #define ECB_STRINGIFY_(a) # a |
847 | #define ECB_STRINGIFY_(a) # a |
709 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
848 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
849 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
710 | |
850 | |
711 | #define ecb_function_ ecb_inline |
851 | #define ecb_function_ ecb_inline |
712 | |
852 | |
713 | #if ECB_GCC_VERSION(3,1) |
853 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
714 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
854 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
855 | #else |
|
|
856 | #define ecb_attribute(attrlist) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
715 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
860 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
861 | #else |
|
|
862 | /* possible C11 impl for integral types |
|
|
863 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
864 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
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|
865 | |
|
|
866 | #define ecb_is_constant(expr) 0 |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
716 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
870 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
871 | #else |
|
|
872 | #define ecb_expect(expr,value) (expr) |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
717 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
876 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
718 | #else |
877 | #else |
719 | #define ecb_attribute(attrlist) |
|
|
720 | #define ecb_is_constant(expr) 0 |
|
|
721 | #define ecb_expect(expr,value) (expr) |
|
|
722 | #define ecb_prefetch(addr,rw,locality) |
878 | #define ecb_prefetch(addr,rw,locality) |
723 | #endif |
879 | #endif |
724 | |
880 | |
725 | /* no emulation for ecb_decltype */ |
881 | /* no emulation for ecb_decltype */ |
726 | #if ECB_GCC_VERSION(4,5) |
882 | #if ECB_CPP11 |
|
|
883 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
884 | template<class T> struct ecb_decltype_t { typedef T type; }; |
727 | #define ecb_decltype(x) __decltype(x) |
885 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
728 | #elif ECB_GCC_VERSION(3,0) |
886 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
729 | #define ecb_decltype(x) __typeof(x) |
887 | #define ecb_decltype(x) __typeof__ (x) |
730 | #endif |
888 | #endif |
731 | |
889 | |
|
|
890 | #if _MSC_VER >= 1300 |
|
|
891 | #define ecb_deprecated __declspec (deprecated) |
|
|
892 | #else |
|
|
893 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if _MSC_VER >= 1500 |
|
|
897 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
898 | #elif ECB_GCC_VERSION(4,5) |
|
|
899 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
900 | #else |
|
|
901 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
902 | #endif |
|
|
903 | |
|
|
904 | #if _MSC_VER >= 1400 |
|
|
905 | #define ecb_noinline __declspec (noinline) |
|
|
906 | #else |
732 | #define ecb_noinline ecb_attribute ((__noinline__)) |
907 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
908 | #endif |
|
|
909 | |
733 | #define ecb_unused ecb_attribute ((__unused__)) |
910 | #define ecb_unused ecb_attribute ((__unused__)) |
734 | #define ecb_const ecb_attribute ((__const__)) |
911 | #define ecb_const ecb_attribute ((__const__)) |
735 | #define ecb_pure ecb_attribute ((__pure__)) |
912 | #define ecb_pure ecb_attribute ((__pure__)) |
736 | |
913 | |
737 | #if ECB_C11 |
914 | #if ECB_C11 || __IBMC_NORETURN |
|
|
915 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
738 | #define ecb_noreturn _Noreturn |
916 | #define ecb_noreturn _Noreturn |
|
|
917 | #elif ECB_CPP11 |
|
|
918 | #define ecb_noreturn [[noreturn]] |
|
|
919 | #elif _MSC_VER >= 1200 |
|
|
920 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
921 | #define ecb_noreturn __declspec (noreturn) |
739 | #else |
922 | #else |
740 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
923 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
741 | #endif |
924 | #endif |
742 | |
925 | |
743 | #if ECB_GCC_VERSION(4,3) |
926 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
758 | /* for compatibility to the rest of the world */ |
941 | /* for compatibility to the rest of the world */ |
759 | #define ecb_likely(expr) ecb_expect_true (expr) |
942 | #define ecb_likely(expr) ecb_expect_true (expr) |
760 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
943 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
761 | |
944 | |
762 | /* count trailing zero bits and count # of one bits */ |
945 | /* count trailing zero bits and count # of one bits */ |
763 | #if ECB_GCC_VERSION(3,4) |
946 | #if ECB_GCC_VERSION(3,4) \ |
|
|
947 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
948 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
949 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
764 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
950 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
765 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
951 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
766 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
952 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
767 | #define ecb_ctz32(x) __builtin_ctz (x) |
953 | #define ecb_ctz32(x) __builtin_ctz (x) |
768 | #define ecb_ctz64(x) __builtin_ctzll (x) |
954 | #define ecb_ctz64(x) __builtin_ctzll (x) |
769 | #define ecb_popcount32(x) __builtin_popcount (x) |
955 | #define ecb_popcount32(x) __builtin_popcount (x) |
770 | /* no popcountll */ |
956 | /* no popcountll */ |
771 | #else |
957 | #else |
772 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
958 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
773 | ecb_function_ int |
959 | ecb_function_ ecb_const int |
774 | ecb_ctz32 (uint32_t x) |
960 | ecb_ctz32 (uint32_t x) |
775 | { |
961 | { |
|
|
962 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
963 | unsigned long r; |
|
|
964 | _BitScanForward (&r, x); |
|
|
965 | return (int)r; |
|
|
966 | #else |
776 | int r = 0; |
967 | int r = 0; |
777 | |
968 | |
778 | x &= ~x + 1; /* this isolates the lowest bit */ |
969 | x &= ~x + 1; /* this isolates the lowest bit */ |
779 | |
970 | |
780 | #if ECB_branchless_on_i386 |
971 | #if ECB_branchless_on_i386 |
… | |
… | |
790 | if (x & 0xff00ff00) r += 8; |
981 | if (x & 0xff00ff00) r += 8; |
791 | if (x & 0xffff0000) r += 16; |
982 | if (x & 0xffff0000) r += 16; |
792 | #endif |
983 | #endif |
793 | |
984 | |
794 | return r; |
985 | return r; |
|
|
986 | #endif |
795 | } |
987 | } |
796 | |
988 | |
797 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
989 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
798 | ecb_function_ int |
990 | ecb_function_ ecb_const int |
799 | ecb_ctz64 (uint64_t x) |
991 | ecb_ctz64 (uint64_t x) |
800 | { |
992 | { |
|
|
993 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
994 | unsigned long r; |
|
|
995 | _BitScanForward64 (&r, x); |
|
|
996 | return (int)r; |
|
|
997 | #else |
801 | int shift = x & 0xffffffffU ? 0 : 32; |
998 | int shift = x & 0xffffffff ? 0 : 32; |
802 | return ecb_ctz32 (x >> shift) + shift; |
999 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1000 | #endif |
803 | } |
1001 | } |
804 | |
1002 | |
805 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1003 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
806 | ecb_function_ int |
1004 | ecb_function_ ecb_const int |
807 | ecb_popcount32 (uint32_t x) |
1005 | ecb_popcount32 (uint32_t x) |
808 | { |
1006 | { |
809 | x -= (x >> 1) & 0x55555555; |
1007 | x -= (x >> 1) & 0x55555555; |
810 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1008 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
811 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1009 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
812 | x *= 0x01010101; |
1010 | x *= 0x01010101; |
813 | |
1011 | |
814 | return x >> 24; |
1012 | return x >> 24; |
815 | } |
1013 | } |
816 | |
1014 | |
817 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1015 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
818 | ecb_function_ int ecb_ld32 (uint32_t x) |
1016 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
819 | { |
1017 | { |
|
|
1018 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1019 | unsigned long r; |
|
|
1020 | _BitScanReverse (&r, x); |
|
|
1021 | return (int)r; |
|
|
1022 | #else |
820 | int r = 0; |
1023 | int r = 0; |
821 | |
1024 | |
822 | if (x >> 16) { x >>= 16; r += 16; } |
1025 | if (x >> 16) { x >>= 16; r += 16; } |
823 | if (x >> 8) { x >>= 8; r += 8; } |
1026 | if (x >> 8) { x >>= 8; r += 8; } |
824 | if (x >> 4) { x >>= 4; r += 4; } |
1027 | if (x >> 4) { x >>= 4; r += 4; } |
825 | if (x >> 2) { x >>= 2; r += 2; } |
1028 | if (x >> 2) { x >>= 2; r += 2; } |
826 | if (x >> 1) { r += 1; } |
1029 | if (x >> 1) { r += 1; } |
827 | |
1030 | |
828 | return r; |
1031 | return r; |
|
|
1032 | #endif |
829 | } |
1033 | } |
830 | |
1034 | |
831 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1035 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
832 | ecb_function_ int ecb_ld64 (uint64_t x) |
1036 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
833 | { |
1037 | { |
|
|
1038 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1039 | unsigned long r; |
|
|
1040 | _BitScanReverse64 (&r, x); |
|
|
1041 | return (int)r; |
|
|
1042 | #else |
834 | int r = 0; |
1043 | int r = 0; |
835 | |
1044 | |
836 | if (x >> 32) { x >>= 32; r += 32; } |
1045 | if (x >> 32) { x >>= 32; r += 32; } |
837 | |
1046 | |
838 | return r + ecb_ld32 (x); |
1047 | return r + ecb_ld32 (x); |
|
|
1048 | #endif |
839 | } |
1049 | } |
840 | #endif |
1050 | #endif |
841 | |
1051 | |
842 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1052 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
843 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1053 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
844 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1054 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
845 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1055 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
846 | |
1056 | |
847 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1057 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
848 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1058 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
849 | { |
1059 | { |
850 | return ( (x * 0x0802U & 0x22110U) |
1060 | return ( (x * 0x0802U & 0x22110U) |
851 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1061 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
852 | } |
1062 | } |
853 | |
1063 | |
854 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1064 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
855 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1065 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
856 | { |
1066 | { |
857 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1067 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
858 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1068 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
859 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1069 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
860 | x = ( x >> 8 ) | ( x << 8); |
1070 | x = ( x >> 8 ) | ( x << 8); |
861 | |
1071 | |
862 | return x; |
1072 | return x; |
863 | } |
1073 | } |
864 | |
1074 | |
865 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1075 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
866 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1076 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
867 | { |
1077 | { |
868 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1078 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
869 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1079 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
870 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1080 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
871 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1081 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
874 | return x; |
1084 | return x; |
875 | } |
1085 | } |
876 | |
1086 | |
877 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1087 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
878 | /* so for this version we are lazy */ |
1088 | /* so for this version we are lazy */ |
879 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1089 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
880 | ecb_function_ int |
1090 | ecb_function_ ecb_const int |
881 | ecb_popcount64 (uint64_t x) |
1091 | ecb_popcount64 (uint64_t x) |
882 | { |
1092 | { |
883 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1093 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
884 | } |
1094 | } |
885 | |
1095 | |
886 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1096 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
887 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1097 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
888 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1098 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
889 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1099 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
890 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1100 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
891 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1101 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
892 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1102 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
893 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1103 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
894 | |
1104 | |
895 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1105 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
896 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1106 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
897 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1107 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
898 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1108 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
899 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1109 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
900 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1110 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
901 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1111 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
902 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1112 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
903 | |
1113 | |
904 | #if ECB_GCC_VERSION(4,3) |
1114 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1115 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1116 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1117 | #else |
905 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1118 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1119 | #endif |
906 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1120 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
907 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1121 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1122 | #elif _MSC_VER |
|
|
1123 | #include <stdlib.h> |
|
|
1124 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1125 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1126 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
908 | #else |
1127 | #else |
909 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1128 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
910 | ecb_function_ uint16_t |
1129 | ecb_function_ ecb_const uint16_t |
911 | ecb_bswap16 (uint16_t x) |
1130 | ecb_bswap16 (uint16_t x) |
912 | { |
1131 | { |
913 | return ecb_rotl16 (x, 8); |
1132 | return ecb_rotl16 (x, 8); |
914 | } |
1133 | } |
915 | |
1134 | |
916 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1135 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
917 | ecb_function_ uint32_t |
1136 | ecb_function_ ecb_const uint32_t |
918 | ecb_bswap32 (uint32_t x) |
1137 | ecb_bswap32 (uint32_t x) |
919 | { |
1138 | { |
920 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1139 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
921 | } |
1140 | } |
922 | |
1141 | |
923 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1142 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
924 | ecb_function_ uint64_t |
1143 | ecb_function_ ecb_const uint64_t |
925 | ecb_bswap64 (uint64_t x) |
1144 | ecb_bswap64 (uint64_t x) |
926 | { |
1145 | { |
927 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1146 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
928 | } |
1147 | } |
929 | #endif |
1148 | #endif |
930 | |
1149 | |
931 | #if ECB_GCC_VERSION(4,5) |
1150 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
932 | #define ecb_unreachable() __builtin_unreachable () |
1151 | #define ecb_unreachable() __builtin_unreachable () |
933 | #else |
1152 | #else |
934 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1153 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
935 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1154 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
936 | ecb_inline void ecb_unreachable (void) { } |
1155 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
937 | #endif |
1156 | #endif |
938 | |
1157 | |
939 | /* try to tell the compiler that some condition is definitely true */ |
1158 | /* try to tell the compiler that some condition is definitely true */ |
940 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1159 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
941 | |
1160 | |
942 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1161 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
943 | ecb_inline unsigned char |
1162 | ecb_inline ecb_const uint32_t |
944 | ecb_byteorder_helper (void) |
1163 | ecb_byteorder_helper (void) |
945 | { |
1164 | { |
946 | const uint32_t u = 0x11223344; |
1165 | /* the union code still generates code under pressure in gcc, */ |
947 | return *(unsigned char *)&u; |
1166 | /* but less than using pointers, and always seems to */ |
|
|
1167 | /* successfully return a constant. */ |
|
|
1168 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1169 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1170 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1171 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1172 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1173 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1174 | return 0x44332211; |
|
|
1175 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1176 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1177 | #define ECB_BIG_ENDIAN 1 |
|
|
1178 | return 0x11223344; |
|
|
1179 | #else |
|
|
1180 | union |
|
|
1181 | { |
|
|
1182 | uint8_t c[4]; |
|
|
1183 | uint32_t u; |
|
|
1184 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1185 | return u.u; |
|
|
1186 | #endif |
948 | } |
1187 | } |
949 | |
1188 | |
950 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1189 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
951 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1190 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
952 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1191 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
953 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1192 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
954 | |
1193 | |
955 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1194 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
956 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1195 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
957 | #else |
1196 | #else |
958 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1197 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
959 | #endif |
1198 | #endif |
960 | |
1199 | |
961 | #if __cplusplus |
1200 | #if ECB_CPP |
962 | template<typename T> |
1201 | template<typename T> |
963 | static inline T ecb_div_rd (T val, T div) |
1202 | static inline T ecb_div_rd (T val, T div) |
964 | { |
1203 | { |
965 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1204 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
966 | } |
1205 | } |
… | |
… | |
983 | } |
1222 | } |
984 | #else |
1223 | #else |
985 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1224 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
986 | #endif |
1225 | #endif |
987 | |
1226 | |
|
|
1227 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1228 | ecb_function_ ecb_const uint32_t |
|
|
1229 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1230 | { |
|
|
1231 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1232 | int e = (x >> 10) & 0x001f; |
|
|
1233 | unsigned int m = x & 0x03ff; |
|
|
1234 | |
|
|
1235 | if (ecb_expect_false (e == 31)) |
|
|
1236 | /* infinity or NaN */ |
|
|
1237 | e = 255 - (127 - 15); |
|
|
1238 | else if (ecb_expect_false (!e)) |
|
|
1239 | { |
|
|
1240 | if (ecb_expect_true (!m)) |
|
|
1241 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1242 | e = 0 - (127 - 15); |
|
|
1243 | else |
|
|
1244 | { |
|
|
1245 | /* subnormal, renormalise */ |
|
|
1246 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1247 | |
|
|
1248 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1249 | e -= s - 1; |
|
|
1250 | } |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1254 | e += 127 - 15; |
|
|
1255 | |
|
|
1256 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1260 | ecb_function_ ecb_const uint16_t |
|
|
1261 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1262 | { |
|
|
1263 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1264 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1265 | unsigned int m = x & 0x007fffff; |
|
|
1266 | |
|
|
1267 | x &= 0x7fffffff; |
|
|
1268 | |
|
|
1269 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1270 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1271 | { |
|
|
1272 | /* mantissa round-to-even */ |
|
|
1273 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1274 | |
|
|
1275 | /* handle overflow */ |
|
|
1276 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1277 | { |
|
|
1278 | m >>= 1; |
|
|
1279 | e += 1; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | /* handle large numbers and infinity */ |
|
|
1286 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1287 | return s | 0x7c00; |
|
|
1288 | |
|
|
1289 | /* handle zero, subnormals and small numbers */ |
|
|
1290 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1291 | { |
|
|
1292 | /* zero */ |
|
|
1293 | if (ecb_expect_true (!x)) |
|
|
1294 | return s; |
|
|
1295 | |
|
|
1296 | /* handle subnormals */ |
|
|
1297 | |
|
|
1298 | /* too small, will be zero */ |
|
|
1299 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1300 | return s; |
|
|
1301 | |
|
|
1302 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1303 | |
|
|
1304 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1305 | { |
|
|
1306 | unsigned int bits = 14 - e; |
|
|
1307 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1308 | unsigned int even = (m >> bits) & 1; |
|
|
1309 | |
|
|
1310 | /* if this overflows, we will end up with a normalised number */ |
|
|
1311 | m = (m + half + even) >> bits; |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | return s | m; |
|
|
1315 | } |
|
|
1316 | |
|
|
1317 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1318 | m >>= 13; |
|
|
1319 | |
|
|
1320 | return s | 0x7c00 | m | !m; |
|
|
1321 | } |
|
|
1322 | |
|
|
1323 | /*******************************************************************************/ |
|
|
1324 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1325 | |
|
|
1326 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1327 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1328 | #if 0 \ |
|
|
1329 | || __i386 || __i386__ \ |
|
|
1330 | || ECB_GCC_AMD64 \ |
|
|
1331 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1332 | || defined __s390__ || defined __s390x__ \ |
|
|
1333 | || defined __mips__ \ |
|
|
1334 | || defined __alpha__ \ |
|
|
1335 | || defined __hppa__ \ |
|
|
1336 | || defined __ia64__ \ |
|
|
1337 | || defined __m68k__ \ |
|
|
1338 | || defined __m88k__ \ |
|
|
1339 | || defined __sh__ \ |
|
|
1340 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1341 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1342 | || defined __aarch64__ |
|
|
1343 | #define ECB_STDFP 1 |
|
|
1344 | #include <string.h> /* for memcpy */ |
|
|
1345 | #else |
|
|
1346 | #define ECB_STDFP 0 |
|
|
1347 | #endif |
|
|
1348 | |
|
|
1349 | #ifndef ECB_NO_LIBM |
|
|
1350 | |
|
|
1351 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1352 | |
|
|
1353 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1354 | #ifdef INFINITY |
|
|
1355 | #define ECB_INFINITY INFINITY |
|
|
1356 | #else |
|
|
1357 | #define ECB_INFINITY HUGE_VAL |
|
|
1358 | #endif |
|
|
1359 | |
|
|
1360 | #ifdef NAN |
|
|
1361 | #define ECB_NAN NAN |
|
|
1362 | #else |
|
|
1363 | #define ECB_NAN ECB_INFINITY |
|
|
1364 | #endif |
|
|
1365 | |
|
|
1366 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1367 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1368 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1369 | #else |
|
|
1370 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1371 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1372 | #endif |
|
|
1373 | |
|
|
1374 | /* convert a float to ieee single/binary32 */ |
|
|
1375 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1376 | ecb_function_ ecb_const uint32_t |
|
|
1377 | ecb_float_to_binary32 (float x) |
|
|
1378 | { |
|
|
1379 | uint32_t r; |
|
|
1380 | |
|
|
1381 | #if ECB_STDFP |
|
|
1382 | memcpy (&r, &x, 4); |
|
|
1383 | #else |
|
|
1384 | /* slow emulation, works for anything but -0 */ |
|
|
1385 | uint32_t m; |
|
|
1386 | int e; |
|
|
1387 | |
|
|
1388 | if (x == 0e0f ) return 0x00000000U; |
|
|
1389 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1390 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1391 | if (x != x ) return 0x7fbfffffU; |
|
|
1392 | |
|
|
1393 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1394 | |
|
|
1395 | r = m & 0x80000000U; |
|
|
1396 | |
|
|
1397 | if (r) |
|
|
1398 | m = -m; |
|
|
1399 | |
|
|
1400 | if (e <= -126) |
|
|
1401 | { |
|
|
1402 | m &= 0xffffffU; |
|
|
1403 | m >>= (-125 - e); |
|
|
1404 | e = -126; |
|
|
1405 | } |
|
|
1406 | |
|
|
1407 | r |= (e + 126) << 23; |
|
|
1408 | r |= m & 0x7fffffU; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* converts an ieee single/binary32 to a float */ |
|
|
1415 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1416 | ecb_function_ ecb_const float |
|
|
1417 | ecb_binary32_to_float (uint32_t x) |
|
|
1418 | { |
|
|
1419 | float r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 4); |
|
|
1423 | #else |
|
|
1424 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1425 | int neg = x >> 31; |
|
|
1426 | int e = (x >> 23) & 0xffU; |
|
|
1427 | |
|
|
1428 | x &= 0x7fffffU; |
|
|
1429 | |
|
|
1430 | if (e) |
|
|
1431 | x |= 0x800000U; |
|
|
1432 | else |
|
|
1433 | e = 1; |
|
|
1434 | |
|
|
1435 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1436 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1437 | |
|
|
1438 | r = neg ? -r : r; |
|
|
1439 | #endif |
|
|
1440 | |
|
|
1441 | return r; |
|
|
1442 | } |
|
|
1443 | |
|
|
1444 | /* convert a double to ieee double/binary64 */ |
|
|
1445 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1446 | ecb_function_ ecb_const uint64_t |
|
|
1447 | ecb_double_to_binary64 (double x) |
|
|
1448 | { |
|
|
1449 | uint64_t r; |
|
|
1450 | |
|
|
1451 | #if ECB_STDFP |
|
|
1452 | memcpy (&r, &x, 8); |
|
|
1453 | #else |
|
|
1454 | /* slow emulation, works for anything but -0 */ |
|
|
1455 | uint64_t m; |
|
|
1456 | int e; |
|
|
1457 | |
|
|
1458 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1459 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1460 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1461 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1462 | |
|
|
1463 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1464 | |
|
|
1465 | r = m & 0x8000000000000000;; |
|
|
1466 | |
|
|
1467 | if (r) |
|
|
1468 | m = -m; |
|
|
1469 | |
|
|
1470 | if (e <= -1022) |
|
|
1471 | { |
|
|
1472 | m &= 0x1fffffffffffffU; |
|
|
1473 | m >>= (-1021 - e); |
|
|
1474 | e = -1022; |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1478 | r |= m & 0xfffffffffffffU; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* converts an ieee double/binary64 to a double */ |
|
|
1485 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1486 | ecb_function_ ecb_const double |
|
|
1487 | ecb_binary64_to_double (uint64_t x) |
|
|
1488 | { |
|
|
1489 | double r; |
|
|
1490 | |
|
|
1491 | #if ECB_STDFP |
|
|
1492 | memcpy (&r, &x, 8); |
|
|
1493 | #else |
|
|
1494 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1495 | int neg = x >> 63; |
|
|
1496 | int e = (x >> 52) & 0x7ffU; |
|
|
1497 | |
|
|
1498 | x &= 0xfffffffffffffU; |
|
|
1499 | |
|
|
1500 | if (e) |
|
|
1501 | x |= 0x10000000000000U; |
|
|
1502 | else |
|
|
1503 | e = 1; |
|
|
1504 | |
|
|
1505 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1506 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1507 | |
|
|
1508 | r = neg ? -r : r; |
|
|
1509 | #endif |
|
|
1510 | |
|
|
1511 | return r; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | /* convert a float to ieee half/binary16 */ |
|
|
1515 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1516 | ecb_function_ ecb_const uint16_t |
|
|
1517 | ecb_float_to_binary16 (float x) |
|
|
1518 | { |
|
|
1519 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | /* convert an ieee half/binary16 to float */ |
|
|
1523 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1524 | ecb_function_ ecb_const float |
|
|
1525 | ecb_binary16_to_float (uint16_t x) |
|
|
1526 | { |
|
|
1527 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | #endif |
|
|
1531 | |
988 | #endif |
1532 | #endif |
989 | |
1533 | |
990 | /* ECB.H END */ |
1534 | /* ECB.H END */ |
991 | |
1535 | |
992 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1536 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
1013 | #define inline_size ecb_inline |
1557 | #define inline_size ecb_inline |
1014 | |
1558 | |
1015 | #if EV_FEATURE_CODE |
1559 | #if EV_FEATURE_CODE |
1016 | # define inline_speed ecb_inline |
1560 | # define inline_speed ecb_inline |
1017 | #else |
1561 | #else |
1018 | # define inline_speed static noinline |
1562 | # define inline_speed noinline static |
1019 | #endif |
1563 | #endif |
1020 | |
1564 | |
1021 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1565 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1022 | |
1566 | |
1023 | #if EV_MINPRI == EV_MAXPRI |
1567 | #if EV_MINPRI == EV_MAXPRI |
1024 | # define ABSPRI(w) (((W)w), 0) |
1568 | # define ABSPRI(w) (((W)w), 0) |
1025 | #else |
1569 | #else |
1026 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1570 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1027 | #endif |
1571 | #endif |
1028 | |
1572 | |
1029 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1573 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1030 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1031 | |
1574 | |
1032 | typedef ev_watcher *W; |
1575 | typedef ev_watcher *W; |
1033 | typedef ev_watcher_list *WL; |
1576 | typedef ev_watcher_list *WL; |
1034 | typedef ev_watcher_time *WT; |
1577 | typedef ev_watcher_time *WT; |
1035 | |
1578 | |
… | |
… | |
1070 | #else |
1613 | #else |
1071 | |
1614 | |
1072 | #include <float.h> |
1615 | #include <float.h> |
1073 | |
1616 | |
1074 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1617 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1618 | noinline |
1075 | static ev_tstamp noinline |
1619 | static ev_tstamp |
1076 | ev_floor (ev_tstamp v) |
1620 | ev_floor (ev_tstamp v) |
1077 | { |
1621 | { |
1078 | /* the choice of shift factor is not terribly important */ |
1622 | /* the choice of shift factor is not terribly important */ |
1079 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1623 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1080 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1624 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1112 | |
1656 | |
1113 | #ifdef __linux |
1657 | #ifdef __linux |
1114 | # include <sys/utsname.h> |
1658 | # include <sys/utsname.h> |
1115 | #endif |
1659 | #endif |
1116 | |
1660 | |
1117 | static unsigned int noinline ecb_cold |
1661 | noinline ecb_cold |
|
|
1662 | static unsigned int |
1118 | ev_linux_version (void) |
1663 | ev_linux_version (void) |
1119 | { |
1664 | { |
1120 | #ifdef __linux |
1665 | #ifdef __linux |
1121 | unsigned int v = 0; |
1666 | unsigned int v = 0; |
1122 | struct utsname buf; |
1667 | struct utsname buf; |
… | |
… | |
1151 | } |
1696 | } |
1152 | |
1697 | |
1153 | /*****************************************************************************/ |
1698 | /*****************************************************************************/ |
1154 | |
1699 | |
1155 | #if EV_AVOID_STDIO |
1700 | #if EV_AVOID_STDIO |
1156 | static void noinline ecb_cold |
1701 | noinline ecb_cold |
|
|
1702 | static void |
1157 | ev_printerr (const char *msg) |
1703 | ev_printerr (const char *msg) |
1158 | { |
1704 | { |
1159 | write (STDERR_FILENO, msg, strlen (msg)); |
1705 | write (STDERR_FILENO, msg, strlen (msg)); |
1160 | } |
1706 | } |
1161 | #endif |
1707 | #endif |
1162 | |
1708 | |
1163 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1709 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1164 | |
1710 | |
1165 | void ecb_cold |
1711 | ecb_cold |
|
|
1712 | void |
1166 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1713 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1167 | { |
1714 | { |
1168 | syserr_cb = cb; |
1715 | syserr_cb = cb; |
1169 | } |
1716 | } |
1170 | |
1717 | |
1171 | static void noinline ecb_cold |
1718 | noinline ecb_cold |
|
|
1719 | static void |
1172 | ev_syserr (const char *msg) |
1720 | ev_syserr (const char *msg) |
1173 | { |
1721 | { |
1174 | if (!msg) |
1722 | if (!msg) |
1175 | msg = "(libev) system error"; |
1723 | msg = "(libev) system error"; |
1176 | |
1724 | |
… | |
… | |
1189 | abort (); |
1737 | abort (); |
1190 | } |
1738 | } |
1191 | } |
1739 | } |
1192 | |
1740 | |
1193 | static void * |
1741 | static void * |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1742 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1195 | { |
1743 | { |
1196 | /* some systems, notably openbsd and darwin, fail to properly |
1744 | /* some systems, notably openbsd and darwin, fail to properly |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1745 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1198 | * the single unix specification, so work around them here. |
1746 | * the single unix specification, so work around them here. |
1199 | * recently, also (at least) fedora and debian started breaking it, |
1747 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1205 | |
1753 | |
1206 | free (ptr); |
1754 | free (ptr); |
1207 | return 0; |
1755 | return 0; |
1208 | } |
1756 | } |
1209 | |
1757 | |
1210 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1758 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1211 | |
1759 | |
1212 | void ecb_cold |
1760 | ecb_cold |
|
|
1761 | void |
1213 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1762 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1214 | { |
1763 | { |
1215 | alloc = cb; |
1764 | alloc = cb; |
1216 | } |
1765 | } |
1217 | |
1766 | |
1218 | inline_speed void * |
1767 | inline_speed void * |
… | |
… | |
1245 | typedef struct |
1794 | typedef struct |
1246 | { |
1795 | { |
1247 | WL head; |
1796 | WL head; |
1248 | unsigned char events; /* the events watched for */ |
1797 | unsigned char events; /* the events watched for */ |
1249 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1798 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1250 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1799 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1251 | unsigned char unused; |
1800 | unsigned char unused; |
1252 | #if EV_USE_EPOLL |
1801 | #if EV_USE_EPOLL |
1253 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1802 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1254 | #endif |
1803 | #endif |
1255 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1804 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
… | |
… | |
1335 | |
1884 | |
1336 | /*****************************************************************************/ |
1885 | /*****************************************************************************/ |
1337 | |
1886 | |
1338 | #ifndef EV_HAVE_EV_TIME |
1887 | #ifndef EV_HAVE_EV_TIME |
1339 | ev_tstamp |
1888 | ev_tstamp |
1340 | ev_time (void) EV_THROW |
1889 | ev_time (void) EV_NOEXCEPT |
1341 | { |
1890 | { |
1342 | #if EV_USE_REALTIME |
1891 | #if EV_USE_REALTIME |
1343 | if (expect_true (have_realtime)) |
1892 | if (expect_true (have_realtime)) |
1344 | { |
1893 | { |
1345 | struct timespec ts; |
1894 | struct timespec ts; |
… | |
… | |
1369 | return ev_time (); |
1918 | return ev_time (); |
1370 | } |
1919 | } |
1371 | |
1920 | |
1372 | #if EV_MULTIPLICITY |
1921 | #if EV_MULTIPLICITY |
1373 | ev_tstamp |
1922 | ev_tstamp |
1374 | ev_now (EV_P) EV_THROW |
1923 | ev_now (EV_P) EV_NOEXCEPT |
1375 | { |
1924 | { |
1376 | return ev_rt_now; |
1925 | return ev_rt_now; |
1377 | } |
1926 | } |
1378 | #endif |
1927 | #endif |
1379 | |
1928 | |
1380 | void |
1929 | void |
1381 | ev_sleep (ev_tstamp delay) EV_THROW |
1930 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1382 | { |
1931 | { |
1383 | if (delay > 0.) |
1932 | if (delay > 0.) |
1384 | { |
1933 | { |
1385 | #if EV_USE_NANOSLEEP |
1934 | #if EV_USE_NANOSLEEP |
1386 | struct timespec ts; |
1935 | struct timespec ts; |
1387 | |
1936 | |
1388 | EV_TS_SET (ts, delay); |
1937 | EV_TS_SET (ts, delay); |
1389 | nanosleep (&ts, 0); |
1938 | nanosleep (&ts, 0); |
1390 | #elif defined _WIN32 |
1939 | #elif defined _WIN32 |
|
|
1940 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1941 | /* compared to select (µs) or nanosleep (ns) */ |
1391 | Sleep ((unsigned long)(delay * 1e3)); |
1942 | Sleep ((unsigned long)(delay * 1e3)); |
1392 | #else |
1943 | #else |
1393 | struct timeval tv; |
1944 | struct timeval tv; |
1394 | |
1945 | |
1395 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1946 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1426 | } |
1977 | } |
1427 | |
1978 | |
1428 | return ncur; |
1979 | return ncur; |
1429 | } |
1980 | } |
1430 | |
1981 | |
1431 | static void * noinline ecb_cold |
1982 | noinline ecb_cold |
|
|
1983 | static void * |
1432 | array_realloc (int elem, void *base, int *cur, int cnt) |
1984 | array_realloc (int elem, void *base, int *cur, int cnt) |
1433 | { |
1985 | { |
1434 | *cur = array_nextsize (elem, *cur, cnt); |
1986 | *cur = array_nextsize (elem, *cur, cnt); |
1435 | return ev_realloc (base, elem * *cur); |
1987 | return ev_realloc (base, elem * *cur); |
1436 | } |
1988 | } |
1437 | |
1989 | |
|
|
1990 | #define array_needsize_noinit(base,count) |
|
|
1991 | |
1438 | #define array_init_zero(base,count) \ |
1992 | #define array_needsize_zerofill(base,count) \ |
1439 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1993 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1440 | |
1994 | |
1441 | #define array_needsize(type,base,cur,cnt,init) \ |
1995 | #define array_needsize(type,base,cur,cnt,init) \ |
1442 | if (expect_false ((cnt) > (cur))) \ |
1996 | if (expect_false ((cnt) > (cur))) \ |
1443 | { \ |
1997 | { \ |
1444 | int ecb_unused ocur_ = (cur); \ |
1998 | ecb_unused int ocur_ = (cur); \ |
1445 | (base) = (type *)array_realloc \ |
1999 | (base) = (type *)array_realloc \ |
1446 | (sizeof (type), (base), &(cur), (cnt)); \ |
2000 | (sizeof (type), (base), &(cur), (cnt)); \ |
1447 | init ((base) + (ocur_), (cur) - ocur_); \ |
2001 | init ((base) + (ocur_), (cur) - ocur_); \ |
1448 | } |
2002 | } |
1449 | |
2003 | |
… | |
… | |
1461 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2015 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1462 | |
2016 | |
1463 | /*****************************************************************************/ |
2017 | /*****************************************************************************/ |
1464 | |
2018 | |
1465 | /* dummy callback for pending events */ |
2019 | /* dummy callback for pending events */ |
1466 | static void noinline |
2020 | noinline |
|
|
2021 | static void |
1467 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2022 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1468 | { |
2023 | { |
1469 | } |
2024 | } |
1470 | |
2025 | |
1471 | void noinline |
2026 | noinline |
|
|
2027 | void |
1472 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2028 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1473 | { |
2029 | { |
1474 | W w_ = (W)w; |
2030 | W w_ = (W)w; |
1475 | int pri = ABSPRI (w_); |
2031 | int pri = ABSPRI (w_); |
1476 | |
2032 | |
1477 | if (expect_false (w_->pending)) |
2033 | if (expect_false (w_->pending)) |
1478 | pendings [pri][w_->pending - 1].events |= revents; |
2034 | pendings [pri][w_->pending - 1].events |= revents; |
1479 | else |
2035 | else |
1480 | { |
2036 | { |
1481 | w_->pending = ++pendingcnt [pri]; |
2037 | w_->pending = ++pendingcnt [pri]; |
1482 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2038 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1483 | pendings [pri][w_->pending - 1].w = w_; |
2039 | pendings [pri][w_->pending - 1].w = w_; |
1484 | pendings [pri][w_->pending - 1].events = revents; |
2040 | pendings [pri][w_->pending - 1].events = revents; |
1485 | } |
2041 | } |
1486 | |
2042 | |
1487 | pendingpri = NUMPRI - 1; |
2043 | pendingpri = NUMPRI - 1; |
1488 | } |
2044 | } |
1489 | |
2045 | |
1490 | inline_speed void |
2046 | inline_speed void |
1491 | feed_reverse (EV_P_ W w) |
2047 | feed_reverse (EV_P_ W w) |
1492 | { |
2048 | { |
1493 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2049 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1494 | rfeeds [rfeedcnt++] = w; |
2050 | rfeeds [rfeedcnt++] = w; |
1495 | } |
2051 | } |
1496 | |
2052 | |
1497 | inline_size void |
2053 | inline_size void |
1498 | feed_reverse_done (EV_P_ int revents) |
2054 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1538 | if (expect_true (!anfd->reify)) |
2094 | if (expect_true (!anfd->reify)) |
1539 | fd_event_nocheck (EV_A_ fd, revents); |
2095 | fd_event_nocheck (EV_A_ fd, revents); |
1540 | } |
2096 | } |
1541 | |
2097 | |
1542 | void |
2098 | void |
1543 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2099 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1544 | { |
2100 | { |
1545 | if (fd >= 0 && fd < anfdmax) |
2101 | if (fd >= 0 && fd < anfdmax) |
1546 | fd_event_nocheck (EV_A_ fd, revents); |
2102 | fd_event_nocheck (EV_A_ fd, revents); |
1547 | } |
2103 | } |
1548 | |
2104 | |
… | |
… | |
1606 | |
2162 | |
1607 | fdchangecnt = 0; |
2163 | fdchangecnt = 0; |
1608 | } |
2164 | } |
1609 | |
2165 | |
1610 | /* something about the given fd changed */ |
2166 | /* something about the given fd changed */ |
1611 | inline_size void |
2167 | inline_size |
|
|
2168 | void |
1612 | fd_change (EV_P_ int fd, int flags) |
2169 | fd_change (EV_P_ int fd, int flags) |
1613 | { |
2170 | { |
1614 | unsigned char reify = anfds [fd].reify; |
2171 | unsigned char reify = anfds [fd].reify; |
1615 | anfds [fd].reify |= flags; |
2172 | anfds [fd].reify |= flags; |
1616 | |
2173 | |
1617 | if (expect_true (!reify)) |
2174 | if (expect_true (!reify)) |
1618 | { |
2175 | { |
1619 | ++fdchangecnt; |
2176 | ++fdchangecnt; |
1620 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2177 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1621 | fdchanges [fdchangecnt - 1] = fd; |
2178 | fdchanges [fdchangecnt - 1] = fd; |
1622 | } |
2179 | } |
1623 | } |
2180 | } |
1624 | |
2181 | |
1625 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2182 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1626 | inline_speed void ecb_cold |
2183 | inline_speed ecb_cold void |
1627 | fd_kill (EV_P_ int fd) |
2184 | fd_kill (EV_P_ int fd) |
1628 | { |
2185 | { |
1629 | ev_io *w; |
2186 | ev_io *w; |
1630 | |
2187 | |
1631 | while ((w = (ev_io *)anfds [fd].head)) |
2188 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1634 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2191 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1635 | } |
2192 | } |
1636 | } |
2193 | } |
1637 | |
2194 | |
1638 | /* check whether the given fd is actually valid, for error recovery */ |
2195 | /* check whether the given fd is actually valid, for error recovery */ |
1639 | inline_size int ecb_cold |
2196 | inline_size ecb_cold int |
1640 | fd_valid (int fd) |
2197 | fd_valid (int fd) |
1641 | { |
2198 | { |
1642 | #ifdef _WIN32 |
2199 | #ifdef _WIN32 |
1643 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2200 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1644 | #else |
2201 | #else |
1645 | return fcntl (fd, F_GETFD) != -1; |
2202 | return fcntl (fd, F_GETFD) != -1; |
1646 | #endif |
2203 | #endif |
1647 | } |
2204 | } |
1648 | |
2205 | |
1649 | /* called on EBADF to verify fds */ |
2206 | /* called on EBADF to verify fds */ |
1650 | static void noinline ecb_cold |
2207 | noinline ecb_cold |
|
|
2208 | static void |
1651 | fd_ebadf (EV_P) |
2209 | fd_ebadf (EV_P) |
1652 | { |
2210 | { |
1653 | int fd; |
2211 | int fd; |
1654 | |
2212 | |
1655 | for (fd = 0; fd < anfdmax; ++fd) |
2213 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1657 | if (!fd_valid (fd) && errno == EBADF) |
2215 | if (!fd_valid (fd) && errno == EBADF) |
1658 | fd_kill (EV_A_ fd); |
2216 | fd_kill (EV_A_ fd); |
1659 | } |
2217 | } |
1660 | |
2218 | |
1661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2219 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1662 | static void noinline ecb_cold |
2220 | noinline ecb_cold |
|
|
2221 | static void |
1663 | fd_enomem (EV_P) |
2222 | fd_enomem (EV_P) |
1664 | { |
2223 | { |
1665 | int fd; |
2224 | int fd; |
1666 | |
2225 | |
1667 | for (fd = anfdmax; fd--; ) |
2226 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1671 | break; |
2230 | break; |
1672 | } |
2231 | } |
1673 | } |
2232 | } |
1674 | |
2233 | |
1675 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2234 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1676 | static void noinline |
2235 | noinline |
|
|
2236 | static void |
1677 | fd_rearm_all (EV_P) |
2237 | fd_rearm_all (EV_P) |
1678 | { |
2238 | { |
1679 | int fd; |
2239 | int fd; |
1680 | |
2240 | |
1681 | for (fd = 0; fd < anfdmax; ++fd) |
2241 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1862 | |
2422 | |
1863 | /*****************************************************************************/ |
2423 | /*****************************************************************************/ |
1864 | |
2424 | |
1865 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2425 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1866 | |
2426 | |
1867 | static void noinline ecb_cold |
2427 | noinline ecb_cold |
|
|
2428 | static void |
1868 | evpipe_init (EV_P) |
2429 | evpipe_init (EV_P) |
1869 | { |
2430 | { |
1870 | if (!ev_is_active (&pipe_w)) |
2431 | if (!ev_is_active (&pipe_w)) |
1871 | { |
2432 | { |
1872 | int fds [2]; |
2433 | int fds [2]; |
… | |
… | |
1883 | while (pipe (fds)) |
2444 | while (pipe (fds)) |
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
2445 | ev_syserr ("(libev) error creating signal/async pipe"); |
1885 | |
2446 | |
1886 | fd_intern (fds [0]); |
2447 | fd_intern (fds [0]); |
1887 | } |
2448 | } |
1888 | |
|
|
1889 | fd_intern (fds [1]); |
|
|
1890 | |
2449 | |
1891 | evpipe [0] = fds [0]; |
2450 | evpipe [0] = fds [0]; |
1892 | |
2451 | |
1893 | if (evpipe [1] < 0) |
2452 | if (evpipe [1] < 0) |
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2453 | evpipe [1] = fds [1]; /* first call, set write fd */ |
… | |
… | |
1901 | |
2460 | |
1902 | dup2 (fds [1], evpipe [1]); |
2461 | dup2 (fds [1], evpipe [1]); |
1903 | close (fds [1]); |
2462 | close (fds [1]); |
1904 | } |
2463 | } |
1905 | |
2464 | |
|
|
2465 | fd_intern (evpipe [1]); |
|
|
2466 | |
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2467 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1907 | ev_io_start (EV_A_ &pipe_w); |
2468 | ev_io_start (EV_A_ &pipe_w); |
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2469 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1909 | } |
2470 | } |
1910 | } |
2471 | } |
… | |
… | |
1943 | #endif |
2504 | #endif |
1944 | { |
2505 | { |
1945 | #ifdef _WIN32 |
2506 | #ifdef _WIN32 |
1946 | WSABUF buf; |
2507 | WSABUF buf; |
1947 | DWORD sent; |
2508 | DWORD sent; |
1948 | buf.buf = &buf; |
2509 | buf.buf = (char *)&buf; |
1949 | buf.len = 1; |
2510 | buf.len = 1; |
1950 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2511 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1951 | #else |
2512 | #else |
1952 | write (evpipe [1], &(evpipe [1]), 1); |
2513 | write (evpipe [1], &(evpipe [1]), 1); |
1953 | #endif |
2514 | #endif |
… | |
… | |
2025 | } |
2586 | } |
2026 | |
2587 | |
2027 | /*****************************************************************************/ |
2588 | /*****************************************************************************/ |
2028 | |
2589 | |
2029 | void |
2590 | void |
2030 | ev_feed_signal (int signum) EV_THROW |
2591 | ev_feed_signal (int signum) EV_NOEXCEPT |
2031 | { |
2592 | { |
2032 | #if EV_MULTIPLICITY |
2593 | #if EV_MULTIPLICITY |
|
|
2594 | EV_P; |
|
|
2595 | ECB_MEMORY_FENCE_ACQUIRE; |
2033 | EV_P = signals [signum - 1].loop; |
2596 | EV_A = signals [signum - 1].loop; |
2034 | |
2597 | |
2035 | if (!EV_A) |
2598 | if (!EV_A) |
2036 | return; |
2599 | return; |
2037 | #endif |
2600 | #endif |
2038 | |
2601 | |
… | |
… | |
2048 | #endif |
2611 | #endif |
2049 | |
2612 | |
2050 | ev_feed_signal (signum); |
2613 | ev_feed_signal (signum); |
2051 | } |
2614 | } |
2052 | |
2615 | |
2053 | void noinline |
2616 | noinline |
|
|
2617 | void |
2054 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2618 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2055 | { |
2619 | { |
2056 | WL w; |
2620 | WL w; |
2057 | |
2621 | |
2058 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2622 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2059 | return; |
2623 | return; |
… | |
… | |
2165 | # include "ev_port.c" |
2729 | # include "ev_port.c" |
2166 | #endif |
2730 | #endif |
2167 | #if EV_USE_KQUEUE |
2731 | #if EV_USE_KQUEUE |
2168 | # include "ev_kqueue.c" |
2732 | # include "ev_kqueue.c" |
2169 | #endif |
2733 | #endif |
|
|
2734 | #if EV_USE_LINUXAIO |
|
|
2735 | # include "ev_linuxaio.c" |
|
|
2736 | #endif |
2170 | #if EV_USE_EPOLL |
2737 | #if EV_USE_EPOLL |
2171 | # include "ev_epoll.c" |
2738 | # include "ev_epoll.c" |
2172 | #endif |
2739 | #endif |
2173 | #if EV_USE_POLL |
2740 | #if EV_USE_POLL |
2174 | # include "ev_poll.c" |
2741 | # include "ev_poll.c" |
2175 | #endif |
2742 | #endif |
2176 | #if EV_USE_SELECT |
2743 | #if EV_USE_SELECT |
2177 | # include "ev_select.c" |
2744 | # include "ev_select.c" |
2178 | #endif |
2745 | #endif |
2179 | |
2746 | |
2180 | int ecb_cold |
2747 | ecb_cold int |
2181 | ev_version_major (void) EV_THROW |
2748 | ev_version_major (void) EV_NOEXCEPT |
2182 | { |
2749 | { |
2183 | return EV_VERSION_MAJOR; |
2750 | return EV_VERSION_MAJOR; |
2184 | } |
2751 | } |
2185 | |
2752 | |
2186 | int ecb_cold |
2753 | ecb_cold int |
2187 | ev_version_minor (void) EV_THROW |
2754 | ev_version_minor (void) EV_NOEXCEPT |
2188 | { |
2755 | { |
2189 | return EV_VERSION_MINOR; |
2756 | return EV_VERSION_MINOR; |
2190 | } |
2757 | } |
2191 | |
2758 | |
2192 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2759 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2193 | int inline_size ecb_cold |
2760 | inline_size ecb_cold int |
2194 | enable_secure (void) |
2761 | enable_secure (void) |
2195 | { |
2762 | { |
2196 | #ifdef _WIN32 |
2763 | #ifdef _WIN32 |
2197 | return 0; |
2764 | return 0; |
2198 | #else |
2765 | #else |
2199 | return getuid () != geteuid () |
2766 | return getuid () != geteuid () |
2200 | || getgid () != getegid (); |
2767 | || getgid () != getegid (); |
2201 | #endif |
2768 | #endif |
2202 | } |
2769 | } |
2203 | |
2770 | |
2204 | unsigned int ecb_cold |
2771 | ecb_cold |
|
|
2772 | unsigned int |
2205 | ev_supported_backends (void) EV_THROW |
2773 | ev_supported_backends (void) EV_NOEXCEPT |
2206 | { |
2774 | { |
2207 | unsigned int flags = 0; |
2775 | unsigned int flags = 0; |
2208 | |
2776 | |
2209 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2777 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2210 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2778 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2211 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2779 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2780 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
2212 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2781 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2213 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2782 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2214 | |
2783 | |
2215 | return flags; |
2784 | return flags; |
2216 | } |
2785 | } |
2217 | |
2786 | |
2218 | unsigned int ecb_cold |
2787 | ecb_cold |
|
|
2788 | unsigned int |
2219 | ev_recommended_backends (void) EV_THROW |
2789 | ev_recommended_backends (void) EV_NOEXCEPT |
2220 | { |
2790 | { |
2221 | unsigned int flags = ev_supported_backends (); |
2791 | unsigned int flags = ev_supported_backends (); |
2222 | |
2792 | |
2223 | #ifndef __NetBSD__ |
2793 | #ifndef __NetBSD__ |
2224 | /* kqueue is borked on everything but netbsd apparently */ |
2794 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2232 | #endif |
2802 | #endif |
2233 | #ifdef __FreeBSD__ |
2803 | #ifdef __FreeBSD__ |
2234 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2804 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2235 | #endif |
2805 | #endif |
2236 | |
2806 | |
|
|
2807 | /* TODO: linuxaio is very experimental */ |
|
|
2808 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2809 | |
2237 | return flags; |
2810 | return flags; |
2238 | } |
2811 | } |
2239 | |
2812 | |
2240 | unsigned int ecb_cold |
2813 | ecb_cold |
|
|
2814 | unsigned int |
2241 | ev_embeddable_backends (void) EV_THROW |
2815 | ev_embeddable_backends (void) EV_NOEXCEPT |
2242 | { |
2816 | { |
2243 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2817 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2244 | |
2818 | |
2245 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2819 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2246 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2820 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2248 | |
2822 | |
2249 | return flags; |
2823 | return flags; |
2250 | } |
2824 | } |
2251 | |
2825 | |
2252 | unsigned int |
2826 | unsigned int |
2253 | ev_backend (EV_P) EV_THROW |
2827 | ev_backend (EV_P) EV_NOEXCEPT |
2254 | { |
2828 | { |
2255 | return backend; |
2829 | return backend; |
2256 | } |
2830 | } |
2257 | |
2831 | |
2258 | #if EV_FEATURE_API |
2832 | #if EV_FEATURE_API |
2259 | unsigned int |
2833 | unsigned int |
2260 | ev_iteration (EV_P) EV_THROW |
2834 | ev_iteration (EV_P) EV_NOEXCEPT |
2261 | { |
2835 | { |
2262 | return loop_count; |
2836 | return loop_count; |
2263 | } |
2837 | } |
2264 | |
2838 | |
2265 | unsigned int |
2839 | unsigned int |
2266 | ev_depth (EV_P) EV_THROW |
2840 | ev_depth (EV_P) EV_NOEXCEPT |
2267 | { |
2841 | { |
2268 | return loop_depth; |
2842 | return loop_depth; |
2269 | } |
2843 | } |
2270 | |
2844 | |
2271 | void |
2845 | void |
2272 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2846 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2273 | { |
2847 | { |
2274 | io_blocktime = interval; |
2848 | io_blocktime = interval; |
2275 | } |
2849 | } |
2276 | |
2850 | |
2277 | void |
2851 | void |
2278 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2852 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2279 | { |
2853 | { |
2280 | timeout_blocktime = interval; |
2854 | timeout_blocktime = interval; |
2281 | } |
2855 | } |
2282 | |
2856 | |
2283 | void |
2857 | void |
2284 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2858 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2285 | { |
2859 | { |
2286 | userdata = data; |
2860 | userdata = data; |
2287 | } |
2861 | } |
2288 | |
2862 | |
2289 | void * |
2863 | void * |
2290 | ev_userdata (EV_P) EV_THROW |
2864 | ev_userdata (EV_P) EV_NOEXCEPT |
2291 | { |
2865 | { |
2292 | return userdata; |
2866 | return userdata; |
2293 | } |
2867 | } |
2294 | |
2868 | |
2295 | void |
2869 | void |
2296 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2870 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2297 | { |
2871 | { |
2298 | invoke_cb = invoke_pending_cb; |
2872 | invoke_cb = invoke_pending_cb; |
2299 | } |
2873 | } |
2300 | |
2874 | |
2301 | void |
2875 | void |
2302 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2876 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2303 | { |
2877 | { |
2304 | release_cb = release; |
2878 | release_cb = release; |
2305 | acquire_cb = acquire; |
2879 | acquire_cb = acquire; |
2306 | } |
2880 | } |
2307 | #endif |
2881 | #endif |
2308 | |
2882 | |
2309 | /* initialise a loop structure, must be zero-initialised */ |
2883 | /* initialise a loop structure, must be zero-initialised */ |
2310 | static void noinline ecb_cold |
2884 | noinline ecb_cold |
|
|
2885 | static void |
2311 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2886 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2312 | { |
2887 | { |
2313 | if (!backend) |
2888 | if (!backend) |
2314 | { |
2889 | { |
2315 | origflags = flags; |
2890 | origflags = flags; |
2316 | |
2891 | |
… | |
… | |
2374 | |
2949 | |
2375 | if (!(flags & EVBACKEND_MASK)) |
2950 | if (!(flags & EVBACKEND_MASK)) |
2376 | flags |= ev_recommended_backends (); |
2951 | flags |= ev_recommended_backends (); |
2377 | |
2952 | |
2378 | #if EV_USE_IOCP |
2953 | #if EV_USE_IOCP |
2379 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2954 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2380 | #endif |
2955 | #endif |
2381 | #if EV_USE_PORT |
2956 | #if EV_USE_PORT |
2382 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2957 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2383 | #endif |
2958 | #endif |
2384 | #if EV_USE_KQUEUE |
2959 | #if EV_USE_KQUEUE |
2385 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2960 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
2961 | #endif |
|
|
2962 | #if EV_USE_LINUXAIO |
|
|
2963 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2386 | #endif |
2964 | #endif |
2387 | #if EV_USE_EPOLL |
2965 | #if EV_USE_EPOLL |
2388 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2966 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2389 | #endif |
2967 | #endif |
2390 | #if EV_USE_POLL |
2968 | #if EV_USE_POLL |
2391 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2969 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2392 | #endif |
2970 | #endif |
2393 | #if EV_USE_SELECT |
2971 | #if EV_USE_SELECT |
2394 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2972 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2395 | #endif |
2973 | #endif |
2396 | |
2974 | |
2397 | ev_prepare_init (&pending_w, pendingcb); |
2975 | ev_prepare_init (&pending_w, pendingcb); |
2398 | |
2976 | |
2399 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2977 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2402 | #endif |
2980 | #endif |
2403 | } |
2981 | } |
2404 | } |
2982 | } |
2405 | |
2983 | |
2406 | /* free up a loop structure */ |
2984 | /* free up a loop structure */ |
2407 | void ecb_cold |
2985 | ecb_cold |
|
|
2986 | void |
2408 | ev_loop_destroy (EV_P) |
2987 | ev_loop_destroy (EV_P) |
2409 | { |
2988 | { |
2410 | int i; |
2989 | int i; |
2411 | |
2990 | |
2412 | #if EV_MULTIPLICITY |
2991 | #if EV_MULTIPLICITY |
… | |
… | |
2453 | |
3032 | |
2454 | if (backend_fd >= 0) |
3033 | if (backend_fd >= 0) |
2455 | close (backend_fd); |
3034 | close (backend_fd); |
2456 | |
3035 | |
2457 | #if EV_USE_IOCP |
3036 | #if EV_USE_IOCP |
2458 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3037 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2459 | #endif |
3038 | #endif |
2460 | #if EV_USE_PORT |
3039 | #if EV_USE_PORT |
2461 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3040 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2462 | #endif |
3041 | #endif |
2463 | #if EV_USE_KQUEUE |
3042 | #if EV_USE_KQUEUE |
2464 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3043 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3044 | #endif |
|
|
3045 | #if EV_USE_LINUXAIO |
|
|
3046 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2465 | #endif |
3047 | #endif |
2466 | #if EV_USE_EPOLL |
3048 | #if EV_USE_EPOLL |
2467 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3049 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2468 | #endif |
3050 | #endif |
2469 | #if EV_USE_POLL |
3051 | #if EV_USE_POLL |
2470 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3052 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2471 | #endif |
3053 | #endif |
2472 | #if EV_USE_SELECT |
3054 | #if EV_USE_SELECT |
2473 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3055 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2474 | #endif |
3056 | #endif |
2475 | |
3057 | |
2476 | for (i = NUMPRI; i--; ) |
3058 | for (i = NUMPRI; i--; ) |
2477 | { |
3059 | { |
2478 | array_free (pending, [i]); |
3060 | array_free (pending, [i]); |
… | |
… | |
2520 | |
3102 | |
2521 | inline_size void |
3103 | inline_size void |
2522 | loop_fork (EV_P) |
3104 | loop_fork (EV_P) |
2523 | { |
3105 | { |
2524 | #if EV_USE_PORT |
3106 | #if EV_USE_PORT |
2525 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3107 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2526 | #endif |
3108 | #endif |
2527 | #if EV_USE_KQUEUE |
3109 | #if EV_USE_KQUEUE |
2528 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3110 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3111 | #endif |
|
|
3112 | #if EV_USE_LINUXAIO |
|
|
3113 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2529 | #endif |
3114 | #endif |
2530 | #if EV_USE_EPOLL |
3115 | #if EV_USE_EPOLL |
2531 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3116 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2532 | #endif |
3117 | #endif |
2533 | #if EV_USE_INOTIFY |
3118 | #if EV_USE_INOTIFY |
2534 | infy_fork (EV_A); |
3119 | infy_fork (EV_A); |
2535 | #endif |
3120 | #endif |
2536 | |
3121 | |
2537 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3122 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2538 | if (ev_is_active (&pipe_w)) |
3123 | if (ev_is_active (&pipe_w) && postfork != 2) |
2539 | { |
3124 | { |
2540 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3125 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2541 | |
3126 | |
2542 | ev_ref (EV_A); |
3127 | ev_ref (EV_A); |
2543 | ev_io_stop (EV_A_ &pipe_w); |
3128 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2554 | postfork = 0; |
3139 | postfork = 0; |
2555 | } |
3140 | } |
2556 | |
3141 | |
2557 | #if EV_MULTIPLICITY |
3142 | #if EV_MULTIPLICITY |
2558 | |
3143 | |
|
|
3144 | ecb_cold |
2559 | struct ev_loop * ecb_cold |
3145 | struct ev_loop * |
2560 | ev_loop_new (unsigned int flags) EV_THROW |
3146 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2561 | { |
3147 | { |
2562 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3148 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2563 | |
3149 | |
2564 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3150 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2565 | loop_init (EV_A_ flags); |
3151 | loop_init (EV_A_ flags); |
… | |
… | |
2572 | } |
3158 | } |
2573 | |
3159 | |
2574 | #endif /* multiplicity */ |
3160 | #endif /* multiplicity */ |
2575 | |
3161 | |
2576 | #if EV_VERIFY |
3162 | #if EV_VERIFY |
2577 | static void noinline ecb_cold |
3163 | noinline ecb_cold |
|
|
3164 | static void |
2578 | verify_watcher (EV_P_ W w) |
3165 | verify_watcher (EV_P_ W w) |
2579 | { |
3166 | { |
2580 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3167 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2581 | |
3168 | |
2582 | if (w->pending) |
3169 | if (w->pending) |
2583 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3170 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2584 | } |
3171 | } |
2585 | |
3172 | |
2586 | static void noinline ecb_cold |
3173 | noinline ecb_cold |
|
|
3174 | static void |
2587 | verify_heap (EV_P_ ANHE *heap, int N) |
3175 | verify_heap (EV_P_ ANHE *heap, int N) |
2588 | { |
3176 | { |
2589 | int i; |
3177 | int i; |
2590 | |
3178 | |
2591 | for (i = HEAP0; i < N + HEAP0; ++i) |
3179 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2596 | |
3184 | |
2597 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3185 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2598 | } |
3186 | } |
2599 | } |
3187 | } |
2600 | |
3188 | |
2601 | static void noinline ecb_cold |
3189 | noinline ecb_cold |
|
|
3190 | static void |
2602 | array_verify (EV_P_ W *ws, int cnt) |
3191 | array_verify (EV_P_ W *ws, int cnt) |
2603 | { |
3192 | { |
2604 | while (cnt--) |
3193 | while (cnt--) |
2605 | { |
3194 | { |
2606 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3195 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2609 | } |
3198 | } |
2610 | #endif |
3199 | #endif |
2611 | |
3200 | |
2612 | #if EV_FEATURE_API |
3201 | #if EV_FEATURE_API |
2613 | void ecb_cold |
3202 | void ecb_cold |
2614 | ev_verify (EV_P) EV_THROW |
3203 | ev_verify (EV_P) EV_NOEXCEPT |
2615 | { |
3204 | { |
2616 | #if EV_VERIFY |
3205 | #if EV_VERIFY |
2617 | int i; |
3206 | int i; |
2618 | WL w, w2; |
3207 | WL w, w2; |
2619 | |
3208 | |
… | |
… | |
2695 | #endif |
3284 | #endif |
2696 | } |
3285 | } |
2697 | #endif |
3286 | #endif |
2698 | |
3287 | |
2699 | #if EV_MULTIPLICITY |
3288 | #if EV_MULTIPLICITY |
|
|
3289 | ecb_cold |
2700 | struct ev_loop * ecb_cold |
3290 | struct ev_loop * |
2701 | #else |
3291 | #else |
2702 | int |
3292 | int |
2703 | #endif |
3293 | #endif |
2704 | ev_default_loop (unsigned int flags) EV_THROW |
3294 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2705 | { |
3295 | { |
2706 | if (!ev_default_loop_ptr) |
3296 | if (!ev_default_loop_ptr) |
2707 | { |
3297 | { |
2708 | #if EV_MULTIPLICITY |
3298 | #if EV_MULTIPLICITY |
2709 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3299 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2728 | |
3318 | |
2729 | return ev_default_loop_ptr; |
3319 | return ev_default_loop_ptr; |
2730 | } |
3320 | } |
2731 | |
3321 | |
2732 | void |
3322 | void |
2733 | ev_loop_fork (EV_P) EV_THROW |
3323 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2734 | { |
3324 | { |
2735 | postfork = 1; |
3325 | postfork = 1; |
2736 | } |
3326 | } |
2737 | |
3327 | |
2738 | /*****************************************************************************/ |
3328 | /*****************************************************************************/ |
… | |
… | |
2742 | { |
3332 | { |
2743 | EV_CB_INVOKE ((W)w, revents); |
3333 | EV_CB_INVOKE ((W)w, revents); |
2744 | } |
3334 | } |
2745 | |
3335 | |
2746 | unsigned int |
3336 | unsigned int |
2747 | ev_pending_count (EV_P) EV_THROW |
3337 | ev_pending_count (EV_P) EV_NOEXCEPT |
2748 | { |
3338 | { |
2749 | int pri; |
3339 | int pri; |
2750 | unsigned int count = 0; |
3340 | unsigned int count = 0; |
2751 | |
3341 | |
2752 | for (pri = NUMPRI; pri--; ) |
3342 | for (pri = NUMPRI; pri--; ) |
2753 | count += pendingcnt [pri]; |
3343 | count += pendingcnt [pri]; |
2754 | |
3344 | |
2755 | return count; |
3345 | return count; |
2756 | } |
3346 | } |
2757 | |
3347 | |
2758 | void noinline |
3348 | noinline |
|
|
3349 | void |
2759 | ev_invoke_pending (EV_P) |
3350 | ev_invoke_pending (EV_P) |
2760 | { |
3351 | { |
2761 | pendingpri = NUMPRI; |
3352 | pendingpri = NUMPRI; |
2762 | |
3353 | |
2763 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3354 | do |
2764 | { |
3355 | { |
2765 | --pendingpri; |
3356 | --pendingpri; |
2766 | |
3357 | |
|
|
3358 | /* pendingpri possibly gets modified in the inner loop */ |
2767 | while (pendingcnt [pendingpri]) |
3359 | while (pendingcnt [pendingpri]) |
2768 | { |
3360 | { |
2769 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3361 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2770 | |
3362 | |
2771 | p->w->pending = 0; |
3363 | p->w->pending = 0; |
2772 | EV_CB_INVOKE (p->w, p->events); |
3364 | EV_CB_INVOKE (p->w, p->events); |
2773 | EV_FREQUENT_CHECK; |
3365 | EV_FREQUENT_CHECK; |
2774 | } |
3366 | } |
2775 | } |
3367 | } |
|
|
3368 | while (pendingpri); |
2776 | } |
3369 | } |
2777 | |
3370 | |
2778 | #if EV_IDLE_ENABLE |
3371 | #if EV_IDLE_ENABLE |
2779 | /* make idle watchers pending. this handles the "call-idle */ |
3372 | /* make idle watchers pending. this handles the "call-idle */ |
2780 | /* only when higher priorities are idle" logic */ |
3373 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2838 | } |
3431 | } |
2839 | } |
3432 | } |
2840 | |
3433 | |
2841 | #if EV_PERIODIC_ENABLE |
3434 | #if EV_PERIODIC_ENABLE |
2842 | |
3435 | |
2843 | static void noinline |
3436 | noinline |
|
|
3437 | static void |
2844 | periodic_recalc (EV_P_ ev_periodic *w) |
3438 | periodic_recalc (EV_P_ ev_periodic *w) |
2845 | { |
3439 | { |
2846 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3440 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2847 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3441 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2848 | |
3442 | |
… | |
… | |
2906 | } |
3500 | } |
2907 | } |
3501 | } |
2908 | |
3502 | |
2909 | /* simply recalculate all periodics */ |
3503 | /* simply recalculate all periodics */ |
2910 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3504 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2911 | static void noinline ecb_cold |
3505 | noinline ecb_cold |
|
|
3506 | static void |
2912 | periodics_reschedule (EV_P) |
3507 | periodics_reschedule (EV_P) |
2913 | { |
3508 | { |
2914 | int i; |
3509 | int i; |
2915 | |
3510 | |
2916 | /* adjust periodics after time jump */ |
3511 | /* adjust periodics after time jump */ |
… | |
… | |
2929 | reheap (periodics, periodiccnt); |
3524 | reheap (periodics, periodiccnt); |
2930 | } |
3525 | } |
2931 | #endif |
3526 | #endif |
2932 | |
3527 | |
2933 | /* adjust all timers by a given offset */ |
3528 | /* adjust all timers by a given offset */ |
2934 | static void noinline ecb_cold |
3529 | noinline ecb_cold |
|
|
3530 | static void |
2935 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3531 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2936 | { |
3532 | { |
2937 | int i; |
3533 | int i; |
2938 | |
3534 | |
2939 | for (i = 0; i < timercnt; ++i) |
3535 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3186 | |
3782 | |
3187 | return activecnt; |
3783 | return activecnt; |
3188 | } |
3784 | } |
3189 | |
3785 | |
3190 | void |
3786 | void |
3191 | ev_break (EV_P_ int how) EV_THROW |
3787 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3192 | { |
3788 | { |
3193 | loop_done = how; |
3789 | loop_done = how; |
3194 | } |
3790 | } |
3195 | |
3791 | |
3196 | void |
3792 | void |
3197 | ev_ref (EV_P) EV_THROW |
3793 | ev_ref (EV_P) EV_NOEXCEPT |
3198 | { |
3794 | { |
3199 | ++activecnt; |
3795 | ++activecnt; |
3200 | } |
3796 | } |
3201 | |
3797 | |
3202 | void |
3798 | void |
3203 | ev_unref (EV_P) EV_THROW |
3799 | ev_unref (EV_P) EV_NOEXCEPT |
3204 | { |
3800 | { |
3205 | --activecnt; |
3801 | --activecnt; |
3206 | } |
3802 | } |
3207 | |
3803 | |
3208 | void |
3804 | void |
3209 | ev_now_update (EV_P) EV_THROW |
3805 | ev_now_update (EV_P) EV_NOEXCEPT |
3210 | { |
3806 | { |
3211 | time_update (EV_A_ 1e100); |
3807 | time_update (EV_A_ 1e100); |
3212 | } |
3808 | } |
3213 | |
3809 | |
3214 | void |
3810 | void |
3215 | ev_suspend (EV_P) EV_THROW |
3811 | ev_suspend (EV_P) EV_NOEXCEPT |
3216 | { |
3812 | { |
3217 | ev_now_update (EV_A); |
3813 | ev_now_update (EV_A); |
3218 | } |
3814 | } |
3219 | |
3815 | |
3220 | void |
3816 | void |
3221 | ev_resume (EV_P) EV_THROW |
3817 | ev_resume (EV_P) EV_NOEXCEPT |
3222 | { |
3818 | { |
3223 | ev_tstamp mn_prev = mn_now; |
3819 | ev_tstamp mn_prev = mn_now; |
3224 | |
3820 | |
3225 | ev_now_update (EV_A); |
3821 | ev_now_update (EV_A); |
3226 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3822 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3265 | w->pending = 0; |
3861 | w->pending = 0; |
3266 | } |
3862 | } |
3267 | } |
3863 | } |
3268 | |
3864 | |
3269 | int |
3865 | int |
3270 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3866 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3271 | { |
3867 | { |
3272 | W w_ = (W)w; |
3868 | W w_ = (W)w; |
3273 | int pending = w_->pending; |
3869 | int pending = w_->pending; |
3274 | |
3870 | |
3275 | if (expect_true (pending)) |
3871 | if (expect_true (pending)) |
… | |
… | |
3307 | w->active = 0; |
3903 | w->active = 0; |
3308 | } |
3904 | } |
3309 | |
3905 | |
3310 | /*****************************************************************************/ |
3906 | /*****************************************************************************/ |
3311 | |
3907 | |
3312 | void noinline |
3908 | noinline |
|
|
3909 | void |
3313 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3910 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3314 | { |
3911 | { |
3315 | int fd = w->fd; |
3912 | int fd = w->fd; |
3316 | |
3913 | |
3317 | if (expect_false (ev_is_active (w))) |
3914 | if (expect_false (ev_is_active (w))) |
3318 | return; |
3915 | return; |
… | |
… | |
3321 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3918 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3322 | |
3919 | |
3323 | EV_FREQUENT_CHECK; |
3920 | EV_FREQUENT_CHECK; |
3324 | |
3921 | |
3325 | ev_start (EV_A_ (W)w, 1); |
3922 | ev_start (EV_A_ (W)w, 1); |
3326 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3923 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3327 | wlist_add (&anfds[fd].head, (WL)w); |
3924 | wlist_add (&anfds[fd].head, (WL)w); |
3328 | |
3925 | |
3329 | /* common bug, apparently */ |
3926 | /* common bug, apparently */ |
3330 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3927 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3331 | |
3928 | |
… | |
… | |
3333 | w->events &= ~EV__IOFDSET; |
3930 | w->events &= ~EV__IOFDSET; |
3334 | |
3931 | |
3335 | EV_FREQUENT_CHECK; |
3932 | EV_FREQUENT_CHECK; |
3336 | } |
3933 | } |
3337 | |
3934 | |
3338 | void noinline |
3935 | noinline |
|
|
3936 | void |
3339 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3937 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3340 | { |
3938 | { |
3341 | clear_pending (EV_A_ (W)w); |
3939 | clear_pending (EV_A_ (W)w); |
3342 | if (expect_false (!ev_is_active (w))) |
3940 | if (expect_false (!ev_is_active (w))) |
3343 | return; |
3941 | return; |
3344 | |
3942 | |
… | |
… | |
3352 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3950 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3353 | |
3951 | |
3354 | EV_FREQUENT_CHECK; |
3952 | EV_FREQUENT_CHECK; |
3355 | } |
3953 | } |
3356 | |
3954 | |
3357 | void noinline |
3955 | noinline |
|
|
3956 | void |
3358 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3957 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3359 | { |
3958 | { |
3360 | if (expect_false (ev_is_active (w))) |
3959 | if (expect_false (ev_is_active (w))) |
3361 | return; |
3960 | return; |
3362 | |
3961 | |
3363 | ev_at (w) += mn_now; |
3962 | ev_at (w) += mn_now; |
… | |
… | |
3366 | |
3965 | |
3367 | EV_FREQUENT_CHECK; |
3966 | EV_FREQUENT_CHECK; |
3368 | |
3967 | |
3369 | ++timercnt; |
3968 | ++timercnt; |
3370 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3969 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3371 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3970 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3372 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3971 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3373 | ANHE_at_cache (timers [ev_active (w)]); |
3972 | ANHE_at_cache (timers [ev_active (w)]); |
3374 | upheap (timers, ev_active (w)); |
3973 | upheap (timers, ev_active (w)); |
3375 | |
3974 | |
3376 | EV_FREQUENT_CHECK; |
3975 | EV_FREQUENT_CHECK; |
3377 | |
3976 | |
3378 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3977 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3379 | } |
3978 | } |
3380 | |
3979 | |
3381 | void noinline |
3980 | noinline |
|
|
3981 | void |
3382 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3982 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3383 | { |
3983 | { |
3384 | clear_pending (EV_A_ (W)w); |
3984 | clear_pending (EV_A_ (W)w); |
3385 | if (expect_false (!ev_is_active (w))) |
3985 | if (expect_false (!ev_is_active (w))) |
3386 | return; |
3986 | return; |
3387 | |
3987 | |
… | |
… | |
3406 | ev_stop (EV_A_ (W)w); |
4006 | ev_stop (EV_A_ (W)w); |
3407 | |
4007 | |
3408 | EV_FREQUENT_CHECK; |
4008 | EV_FREQUENT_CHECK; |
3409 | } |
4009 | } |
3410 | |
4010 | |
3411 | void noinline |
4011 | noinline |
|
|
4012 | void |
3412 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4013 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3413 | { |
4014 | { |
3414 | EV_FREQUENT_CHECK; |
4015 | EV_FREQUENT_CHECK; |
3415 | |
4016 | |
3416 | clear_pending (EV_A_ (W)w); |
4017 | clear_pending (EV_A_ (W)w); |
3417 | |
4018 | |
… | |
… | |
3434 | |
4035 | |
3435 | EV_FREQUENT_CHECK; |
4036 | EV_FREQUENT_CHECK; |
3436 | } |
4037 | } |
3437 | |
4038 | |
3438 | ev_tstamp |
4039 | ev_tstamp |
3439 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4040 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3440 | { |
4041 | { |
3441 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4042 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3442 | } |
4043 | } |
3443 | |
4044 | |
3444 | #if EV_PERIODIC_ENABLE |
4045 | #if EV_PERIODIC_ENABLE |
3445 | void noinline |
4046 | noinline |
|
|
4047 | void |
3446 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4048 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3447 | { |
4049 | { |
3448 | if (expect_false (ev_is_active (w))) |
4050 | if (expect_false (ev_is_active (w))) |
3449 | return; |
4051 | return; |
3450 | |
4052 | |
3451 | if (w->reschedule_cb) |
4053 | if (w->reschedule_cb) |
… | |
… | |
3460 | |
4062 | |
3461 | EV_FREQUENT_CHECK; |
4063 | EV_FREQUENT_CHECK; |
3462 | |
4064 | |
3463 | ++periodiccnt; |
4065 | ++periodiccnt; |
3464 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4066 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3465 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4067 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3466 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4068 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3467 | ANHE_at_cache (periodics [ev_active (w)]); |
4069 | ANHE_at_cache (periodics [ev_active (w)]); |
3468 | upheap (periodics, ev_active (w)); |
4070 | upheap (periodics, ev_active (w)); |
3469 | |
4071 | |
3470 | EV_FREQUENT_CHECK; |
4072 | EV_FREQUENT_CHECK; |
3471 | |
4073 | |
3472 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4074 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3473 | } |
4075 | } |
3474 | |
4076 | |
3475 | void noinline |
4077 | noinline |
|
|
4078 | void |
3476 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4079 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3477 | { |
4080 | { |
3478 | clear_pending (EV_A_ (W)w); |
4081 | clear_pending (EV_A_ (W)w); |
3479 | if (expect_false (!ev_is_active (w))) |
4082 | if (expect_false (!ev_is_active (w))) |
3480 | return; |
4083 | return; |
3481 | |
4084 | |
… | |
… | |
3498 | ev_stop (EV_A_ (W)w); |
4101 | ev_stop (EV_A_ (W)w); |
3499 | |
4102 | |
3500 | EV_FREQUENT_CHECK; |
4103 | EV_FREQUENT_CHECK; |
3501 | } |
4104 | } |
3502 | |
4105 | |
3503 | void noinline |
4106 | noinline |
|
|
4107 | void |
3504 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4108 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3505 | { |
4109 | { |
3506 | /* TODO: use adjustheap and recalculation */ |
4110 | /* TODO: use adjustheap and recalculation */ |
3507 | ev_periodic_stop (EV_A_ w); |
4111 | ev_periodic_stop (EV_A_ w); |
3508 | ev_periodic_start (EV_A_ w); |
4112 | ev_periodic_start (EV_A_ w); |
3509 | } |
4113 | } |
… | |
… | |
3513 | # define SA_RESTART 0 |
4117 | # define SA_RESTART 0 |
3514 | #endif |
4118 | #endif |
3515 | |
4119 | |
3516 | #if EV_SIGNAL_ENABLE |
4120 | #if EV_SIGNAL_ENABLE |
3517 | |
4121 | |
3518 | void noinline |
4122 | noinline |
|
|
4123 | void |
3519 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4124 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3520 | { |
4125 | { |
3521 | if (expect_false (ev_is_active (w))) |
4126 | if (expect_false (ev_is_active (w))) |
3522 | return; |
4127 | return; |
3523 | |
4128 | |
3524 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4129 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3526 | #if EV_MULTIPLICITY |
4131 | #if EV_MULTIPLICITY |
3527 | assert (("libev: a signal must not be attached to two different loops", |
4132 | assert (("libev: a signal must not be attached to two different loops", |
3528 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4133 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3529 | |
4134 | |
3530 | signals [w->signum - 1].loop = EV_A; |
4135 | signals [w->signum - 1].loop = EV_A; |
|
|
4136 | ECB_MEMORY_FENCE_RELEASE; |
3531 | #endif |
4137 | #endif |
3532 | |
4138 | |
3533 | EV_FREQUENT_CHECK; |
4139 | EV_FREQUENT_CHECK; |
3534 | |
4140 | |
3535 | #if EV_USE_SIGNALFD |
4141 | #if EV_USE_SIGNALFD |
… | |
… | |
3594 | } |
4200 | } |
3595 | |
4201 | |
3596 | EV_FREQUENT_CHECK; |
4202 | EV_FREQUENT_CHECK; |
3597 | } |
4203 | } |
3598 | |
4204 | |
3599 | void noinline |
4205 | noinline |
|
|
4206 | void |
3600 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4207 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3601 | { |
4208 | { |
3602 | clear_pending (EV_A_ (W)w); |
4209 | clear_pending (EV_A_ (W)w); |
3603 | if (expect_false (!ev_is_active (w))) |
4210 | if (expect_false (!ev_is_active (w))) |
3604 | return; |
4211 | return; |
3605 | |
4212 | |
… | |
… | |
3636 | #endif |
4243 | #endif |
3637 | |
4244 | |
3638 | #if EV_CHILD_ENABLE |
4245 | #if EV_CHILD_ENABLE |
3639 | |
4246 | |
3640 | void |
4247 | void |
3641 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4248 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3642 | { |
4249 | { |
3643 | #if EV_MULTIPLICITY |
4250 | #if EV_MULTIPLICITY |
3644 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4251 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3645 | #endif |
4252 | #endif |
3646 | if (expect_false (ev_is_active (w))) |
4253 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3653 | |
4260 | |
3654 | EV_FREQUENT_CHECK; |
4261 | EV_FREQUENT_CHECK; |
3655 | } |
4262 | } |
3656 | |
4263 | |
3657 | void |
4264 | void |
3658 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4265 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3659 | { |
4266 | { |
3660 | clear_pending (EV_A_ (W)w); |
4267 | clear_pending (EV_A_ (W)w); |
3661 | if (expect_false (!ev_is_active (w))) |
4268 | if (expect_false (!ev_is_active (w))) |
3662 | return; |
4269 | return; |
3663 | |
4270 | |
… | |
… | |
3680 | |
4287 | |
3681 | #define DEF_STAT_INTERVAL 5.0074891 |
4288 | #define DEF_STAT_INTERVAL 5.0074891 |
3682 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4289 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3683 | #define MIN_STAT_INTERVAL 0.1074891 |
4290 | #define MIN_STAT_INTERVAL 0.1074891 |
3684 | |
4291 | |
3685 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4292 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3686 | |
4293 | |
3687 | #if EV_USE_INOTIFY |
4294 | #if EV_USE_INOTIFY |
3688 | |
4295 | |
3689 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4296 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3690 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4297 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3691 | |
4298 | |
3692 | static void noinline |
4299 | noinline |
|
|
4300 | static void |
3693 | infy_add (EV_P_ ev_stat *w) |
4301 | infy_add (EV_P_ ev_stat *w) |
3694 | { |
4302 | { |
3695 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4303 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4304 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4305 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4306 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3696 | |
4307 | |
3697 | if (w->wd >= 0) |
4308 | if (w->wd >= 0) |
3698 | { |
4309 | { |
3699 | struct statfs sfs; |
4310 | struct statfs sfs; |
3700 | |
4311 | |
… | |
… | |
3704 | |
4315 | |
3705 | if (!fs_2625) |
4316 | if (!fs_2625) |
3706 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4317 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3707 | else if (!statfs (w->path, &sfs) |
4318 | else if (!statfs (w->path, &sfs) |
3708 | && (sfs.f_type == 0x1373 /* devfs */ |
4319 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4320 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4321 | || sfs.f_type == 0x4d44 /* msdos */ |
3709 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4322 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4323 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4324 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4325 | || sfs.f_type == 0x5346544e /* ntfs */ |
3710 | || sfs.f_type == 0x3153464a /* jfs */ |
4326 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4327 | || sfs.f_type == 0x9123683e /* btrfs */ |
3711 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4328 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3712 | || sfs.f_type == 0x01021994 /* tempfs */ |
4329 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3713 | || sfs.f_type == 0x58465342 /* xfs */)) |
4330 | || sfs.f_type == 0x58465342 /* xfs */)) |
3714 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4331 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3715 | else |
4332 | else |
3716 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4333 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3717 | } |
4334 | } |
… | |
… | |
3752 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4369 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3753 | ev_timer_again (EV_A_ &w->timer); |
4370 | ev_timer_again (EV_A_ &w->timer); |
3754 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4371 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3755 | } |
4372 | } |
3756 | |
4373 | |
3757 | static void noinline |
4374 | noinline |
|
|
4375 | static void |
3758 | infy_del (EV_P_ ev_stat *w) |
4376 | infy_del (EV_P_ ev_stat *w) |
3759 | { |
4377 | { |
3760 | int slot; |
4378 | int slot; |
3761 | int wd = w->wd; |
4379 | int wd = w->wd; |
3762 | |
4380 | |
… | |
… | |
3769 | |
4387 | |
3770 | /* remove this watcher, if others are watching it, they will rearm */ |
4388 | /* remove this watcher, if others are watching it, they will rearm */ |
3771 | inotify_rm_watch (fs_fd, wd); |
4389 | inotify_rm_watch (fs_fd, wd); |
3772 | } |
4390 | } |
3773 | |
4391 | |
3774 | static void noinline |
4392 | noinline |
|
|
4393 | static void |
3775 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4394 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3776 | { |
4395 | { |
3777 | if (slot < 0) |
4396 | if (slot < 0) |
3778 | /* overflow, need to check for all hash slots */ |
4397 | /* overflow, need to check for all hash slots */ |
3779 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4398 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3815 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4434 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3816 | ofs += sizeof (struct inotify_event) + ev->len; |
4435 | ofs += sizeof (struct inotify_event) + ev->len; |
3817 | } |
4436 | } |
3818 | } |
4437 | } |
3819 | |
4438 | |
3820 | inline_size void ecb_cold |
4439 | inline_size ecb_cold |
|
|
4440 | void |
3821 | ev_check_2625 (EV_P) |
4441 | ev_check_2625 (EV_P) |
3822 | { |
4442 | { |
3823 | /* kernels < 2.6.25 are borked |
4443 | /* kernels < 2.6.25 are borked |
3824 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4444 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3825 | */ |
4445 | */ |
… | |
… | |
3915 | #else |
4535 | #else |
3916 | # define EV_LSTAT(p,b) lstat (p, b) |
4536 | # define EV_LSTAT(p,b) lstat (p, b) |
3917 | #endif |
4537 | #endif |
3918 | |
4538 | |
3919 | void |
4539 | void |
3920 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4540 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3921 | { |
4541 | { |
3922 | if (lstat (w->path, &w->attr) < 0) |
4542 | if (lstat (w->path, &w->attr) < 0) |
3923 | w->attr.st_nlink = 0; |
4543 | w->attr.st_nlink = 0; |
3924 | else if (!w->attr.st_nlink) |
4544 | else if (!w->attr.st_nlink) |
3925 | w->attr.st_nlink = 1; |
4545 | w->attr.st_nlink = 1; |
3926 | } |
4546 | } |
3927 | |
4547 | |
3928 | static void noinline |
4548 | noinline |
|
|
4549 | static void |
3929 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4550 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3930 | { |
4551 | { |
3931 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4552 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3932 | |
4553 | |
3933 | ev_statdata prev = w->attr; |
4554 | ev_statdata prev = w->attr; |
… | |
… | |
3964 | ev_feed_event (EV_A_ w, EV_STAT); |
4585 | ev_feed_event (EV_A_ w, EV_STAT); |
3965 | } |
4586 | } |
3966 | } |
4587 | } |
3967 | |
4588 | |
3968 | void |
4589 | void |
3969 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4590 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3970 | { |
4591 | { |
3971 | if (expect_false (ev_is_active (w))) |
4592 | if (expect_false (ev_is_active (w))) |
3972 | return; |
4593 | return; |
3973 | |
4594 | |
3974 | ev_stat_stat (EV_A_ w); |
4595 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3995 | |
4616 | |
3996 | EV_FREQUENT_CHECK; |
4617 | EV_FREQUENT_CHECK; |
3997 | } |
4618 | } |
3998 | |
4619 | |
3999 | void |
4620 | void |
4000 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4621 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4001 | { |
4622 | { |
4002 | clear_pending (EV_A_ (W)w); |
4623 | clear_pending (EV_A_ (W)w); |
4003 | if (expect_false (!ev_is_active (w))) |
4624 | if (expect_false (!ev_is_active (w))) |
4004 | return; |
4625 | return; |
4005 | |
4626 | |
… | |
… | |
4021 | } |
4642 | } |
4022 | #endif |
4643 | #endif |
4023 | |
4644 | |
4024 | #if EV_IDLE_ENABLE |
4645 | #if EV_IDLE_ENABLE |
4025 | void |
4646 | void |
4026 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4647 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4027 | { |
4648 | { |
4028 | if (expect_false (ev_is_active (w))) |
4649 | if (expect_false (ev_is_active (w))) |
4029 | return; |
4650 | return; |
4030 | |
4651 | |
4031 | pri_adjust (EV_A_ (W)w); |
4652 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
4036 | int active = ++idlecnt [ABSPRI (w)]; |
4657 | int active = ++idlecnt [ABSPRI (w)]; |
4037 | |
4658 | |
4038 | ++idleall; |
4659 | ++idleall; |
4039 | ev_start (EV_A_ (W)w, active); |
4660 | ev_start (EV_A_ (W)w, active); |
4040 | |
4661 | |
4041 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4662 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4042 | idles [ABSPRI (w)][active - 1] = w; |
4663 | idles [ABSPRI (w)][active - 1] = w; |
4043 | } |
4664 | } |
4044 | |
4665 | |
4045 | EV_FREQUENT_CHECK; |
4666 | EV_FREQUENT_CHECK; |
4046 | } |
4667 | } |
4047 | |
4668 | |
4048 | void |
4669 | void |
4049 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4670 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4050 | { |
4671 | { |
4051 | clear_pending (EV_A_ (W)w); |
4672 | clear_pending (EV_A_ (W)w); |
4052 | if (expect_false (!ev_is_active (w))) |
4673 | if (expect_false (!ev_is_active (w))) |
4053 | return; |
4674 | return; |
4054 | |
4675 | |
… | |
… | |
4068 | } |
4689 | } |
4069 | #endif |
4690 | #endif |
4070 | |
4691 | |
4071 | #if EV_PREPARE_ENABLE |
4692 | #if EV_PREPARE_ENABLE |
4072 | void |
4693 | void |
4073 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4694 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4074 | { |
4695 | { |
4075 | if (expect_false (ev_is_active (w))) |
4696 | if (expect_false (ev_is_active (w))) |
4076 | return; |
4697 | return; |
4077 | |
4698 | |
4078 | EV_FREQUENT_CHECK; |
4699 | EV_FREQUENT_CHECK; |
4079 | |
4700 | |
4080 | ev_start (EV_A_ (W)w, ++preparecnt); |
4701 | ev_start (EV_A_ (W)w, ++preparecnt); |
4081 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4702 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4082 | prepares [preparecnt - 1] = w; |
4703 | prepares [preparecnt - 1] = w; |
4083 | |
4704 | |
4084 | EV_FREQUENT_CHECK; |
4705 | EV_FREQUENT_CHECK; |
4085 | } |
4706 | } |
4086 | |
4707 | |
4087 | void |
4708 | void |
4088 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4709 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4089 | { |
4710 | { |
4090 | clear_pending (EV_A_ (W)w); |
4711 | clear_pending (EV_A_ (W)w); |
4091 | if (expect_false (!ev_is_active (w))) |
4712 | if (expect_false (!ev_is_active (w))) |
4092 | return; |
4713 | return; |
4093 | |
4714 | |
… | |
… | |
4106 | } |
4727 | } |
4107 | #endif |
4728 | #endif |
4108 | |
4729 | |
4109 | #if EV_CHECK_ENABLE |
4730 | #if EV_CHECK_ENABLE |
4110 | void |
4731 | void |
4111 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4732 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4112 | { |
4733 | { |
4113 | if (expect_false (ev_is_active (w))) |
4734 | if (expect_false (ev_is_active (w))) |
4114 | return; |
4735 | return; |
4115 | |
4736 | |
4116 | EV_FREQUENT_CHECK; |
4737 | EV_FREQUENT_CHECK; |
4117 | |
4738 | |
4118 | ev_start (EV_A_ (W)w, ++checkcnt); |
4739 | ev_start (EV_A_ (W)w, ++checkcnt); |
4119 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4740 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4120 | checks [checkcnt - 1] = w; |
4741 | checks [checkcnt - 1] = w; |
4121 | |
4742 | |
4122 | EV_FREQUENT_CHECK; |
4743 | EV_FREQUENT_CHECK; |
4123 | } |
4744 | } |
4124 | |
4745 | |
4125 | void |
4746 | void |
4126 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4747 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4127 | { |
4748 | { |
4128 | clear_pending (EV_A_ (W)w); |
4749 | clear_pending (EV_A_ (W)w); |
4129 | if (expect_false (!ev_is_active (w))) |
4750 | if (expect_false (!ev_is_active (w))) |
4130 | return; |
4751 | return; |
4131 | |
4752 | |
… | |
… | |
4143 | EV_FREQUENT_CHECK; |
4764 | EV_FREQUENT_CHECK; |
4144 | } |
4765 | } |
4145 | #endif |
4766 | #endif |
4146 | |
4767 | |
4147 | #if EV_EMBED_ENABLE |
4768 | #if EV_EMBED_ENABLE |
4148 | void noinline |
4769 | noinline |
|
|
4770 | void |
4149 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4771 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4150 | { |
4772 | { |
4151 | ev_run (w->other, EVRUN_NOWAIT); |
4773 | ev_run (w->other, EVRUN_NOWAIT); |
4152 | } |
4774 | } |
4153 | |
4775 | |
4154 | static void |
4776 | static void |
… | |
… | |
4202 | ev_idle_stop (EV_A_ idle); |
4824 | ev_idle_stop (EV_A_ idle); |
4203 | } |
4825 | } |
4204 | #endif |
4826 | #endif |
4205 | |
4827 | |
4206 | void |
4828 | void |
4207 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4829 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4208 | { |
4830 | { |
4209 | if (expect_false (ev_is_active (w))) |
4831 | if (expect_false (ev_is_active (w))) |
4210 | return; |
4832 | return; |
4211 | |
4833 | |
4212 | { |
4834 | { |
… | |
… | |
4233 | |
4855 | |
4234 | EV_FREQUENT_CHECK; |
4856 | EV_FREQUENT_CHECK; |
4235 | } |
4857 | } |
4236 | |
4858 | |
4237 | void |
4859 | void |
4238 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4860 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4239 | { |
4861 | { |
4240 | clear_pending (EV_A_ (W)w); |
4862 | clear_pending (EV_A_ (W)w); |
4241 | if (expect_false (!ev_is_active (w))) |
4863 | if (expect_false (!ev_is_active (w))) |
4242 | return; |
4864 | return; |
4243 | |
4865 | |
… | |
… | |
4253 | } |
4875 | } |
4254 | #endif |
4876 | #endif |
4255 | |
4877 | |
4256 | #if EV_FORK_ENABLE |
4878 | #if EV_FORK_ENABLE |
4257 | void |
4879 | void |
4258 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4880 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4259 | { |
4881 | { |
4260 | if (expect_false (ev_is_active (w))) |
4882 | if (expect_false (ev_is_active (w))) |
4261 | return; |
4883 | return; |
4262 | |
4884 | |
4263 | EV_FREQUENT_CHECK; |
4885 | EV_FREQUENT_CHECK; |
4264 | |
4886 | |
4265 | ev_start (EV_A_ (W)w, ++forkcnt); |
4887 | ev_start (EV_A_ (W)w, ++forkcnt); |
4266 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4888 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4267 | forks [forkcnt - 1] = w; |
4889 | forks [forkcnt - 1] = w; |
4268 | |
4890 | |
4269 | EV_FREQUENT_CHECK; |
4891 | EV_FREQUENT_CHECK; |
4270 | } |
4892 | } |
4271 | |
4893 | |
4272 | void |
4894 | void |
4273 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4895 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4274 | { |
4896 | { |
4275 | clear_pending (EV_A_ (W)w); |
4897 | clear_pending (EV_A_ (W)w); |
4276 | if (expect_false (!ev_is_active (w))) |
4898 | if (expect_false (!ev_is_active (w))) |
4277 | return; |
4899 | return; |
4278 | |
4900 | |
… | |
… | |
4291 | } |
4913 | } |
4292 | #endif |
4914 | #endif |
4293 | |
4915 | |
4294 | #if EV_CLEANUP_ENABLE |
4916 | #if EV_CLEANUP_ENABLE |
4295 | void |
4917 | void |
4296 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4918 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4297 | { |
4919 | { |
4298 | if (expect_false (ev_is_active (w))) |
4920 | if (expect_false (ev_is_active (w))) |
4299 | return; |
4921 | return; |
4300 | |
4922 | |
4301 | EV_FREQUENT_CHECK; |
4923 | EV_FREQUENT_CHECK; |
4302 | |
4924 | |
4303 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4925 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4304 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
4926 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4305 | cleanups [cleanupcnt - 1] = w; |
4927 | cleanups [cleanupcnt - 1] = w; |
4306 | |
4928 | |
4307 | /* cleanup watchers should never keep a refcount on the loop */ |
4929 | /* cleanup watchers should never keep a refcount on the loop */ |
4308 | ev_unref (EV_A); |
4930 | ev_unref (EV_A); |
4309 | EV_FREQUENT_CHECK; |
4931 | EV_FREQUENT_CHECK; |
4310 | } |
4932 | } |
4311 | |
4933 | |
4312 | void |
4934 | void |
4313 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4935 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4314 | { |
4936 | { |
4315 | clear_pending (EV_A_ (W)w); |
4937 | clear_pending (EV_A_ (W)w); |
4316 | if (expect_false (!ev_is_active (w))) |
4938 | if (expect_false (!ev_is_active (w))) |
4317 | return; |
4939 | return; |
4318 | |
4940 | |
… | |
… | |
4332 | } |
4954 | } |
4333 | #endif |
4955 | #endif |
4334 | |
4956 | |
4335 | #if EV_ASYNC_ENABLE |
4957 | #if EV_ASYNC_ENABLE |
4336 | void |
4958 | void |
4337 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4959 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4338 | { |
4960 | { |
4339 | if (expect_false (ev_is_active (w))) |
4961 | if (expect_false (ev_is_active (w))) |
4340 | return; |
4962 | return; |
4341 | |
4963 | |
4342 | w->sent = 0; |
4964 | w->sent = 0; |
… | |
… | |
4344 | evpipe_init (EV_A); |
4966 | evpipe_init (EV_A); |
4345 | |
4967 | |
4346 | EV_FREQUENT_CHECK; |
4968 | EV_FREQUENT_CHECK; |
4347 | |
4969 | |
4348 | ev_start (EV_A_ (W)w, ++asynccnt); |
4970 | ev_start (EV_A_ (W)w, ++asynccnt); |
4349 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4971 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4350 | asyncs [asynccnt - 1] = w; |
4972 | asyncs [asynccnt - 1] = w; |
4351 | |
4973 | |
4352 | EV_FREQUENT_CHECK; |
4974 | EV_FREQUENT_CHECK; |
4353 | } |
4975 | } |
4354 | |
4976 | |
4355 | void |
4977 | void |
4356 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4978 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4357 | { |
4979 | { |
4358 | clear_pending (EV_A_ (W)w); |
4980 | clear_pending (EV_A_ (W)w); |
4359 | if (expect_false (!ev_is_active (w))) |
4981 | if (expect_false (!ev_is_active (w))) |
4360 | return; |
4982 | return; |
4361 | |
4983 | |
… | |
… | |
4372 | |
4994 | |
4373 | EV_FREQUENT_CHECK; |
4995 | EV_FREQUENT_CHECK; |
4374 | } |
4996 | } |
4375 | |
4997 | |
4376 | void |
4998 | void |
4377 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4999 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4378 | { |
5000 | { |
4379 | w->sent = 1; |
5001 | w->sent = 1; |
4380 | evpipe_write (EV_A_ &async_pending); |
5002 | evpipe_write (EV_A_ &async_pending); |
4381 | } |
5003 | } |
4382 | #endif |
5004 | #endif |
… | |
… | |
4419 | |
5041 | |
4420 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5042 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4421 | } |
5043 | } |
4422 | |
5044 | |
4423 | void |
5045 | void |
4424 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5046 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4425 | { |
5047 | { |
4426 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5048 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4427 | |
|
|
4428 | if (expect_false (!once)) |
|
|
4429 | { |
|
|
4430 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4431 | return; |
|
|
4432 | } |
|
|
4433 | |
5049 | |
4434 | once->cb = cb; |
5050 | once->cb = cb; |
4435 | once->arg = arg; |
5051 | once->arg = arg; |
4436 | |
5052 | |
4437 | ev_init (&once->io, once_cb_io); |
5053 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4450 | } |
5066 | } |
4451 | |
5067 | |
4452 | /*****************************************************************************/ |
5068 | /*****************************************************************************/ |
4453 | |
5069 | |
4454 | #if EV_WALK_ENABLE |
5070 | #if EV_WALK_ENABLE |
4455 | void ecb_cold |
5071 | ecb_cold |
|
|
5072 | void |
4456 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5073 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4457 | { |
5074 | { |
4458 | int i, j; |
5075 | int i, j; |
4459 | ev_watcher_list *wl, *wn; |
5076 | ev_watcher_list *wl, *wn; |
4460 | |
5077 | |
4461 | if (types & (EV_IO | EV_EMBED)) |
5078 | if (types & (EV_IO | EV_EMBED)) |