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 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
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331 | # define EV_USE_LINUXAIO 1 |
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332 | # else |
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333 | # define EV_USE_LINUXAIO 0 |
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334 | # endif |
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335 | #endif |
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336 | |
312 | #ifndef EV_USE_INOTIFY |
337 | #ifndef EV_USE_INOTIFY |
313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
338 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
339 | # define EV_USE_INOTIFY EV_FEATURE_OS |
315 | # else |
340 | # else |
316 | # define EV_USE_INOTIFY 0 |
341 | # define EV_USE_INOTIFY 0 |
… | |
… | |
357 | |
382 | |
358 | #ifndef EV_HEAP_CACHE_AT |
383 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
384 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
360 | #endif |
385 | #endif |
361 | |
386 | |
362 | #ifdef ANDROID |
387 | #ifdef __ANDROID__ |
363 | /* supposedly, android doesn't typedef fd_mask */ |
388 | /* supposedly, android doesn't typedef fd_mask */ |
364 | # undef EV_USE_SELECT |
389 | # undef EV_USE_SELECT |
365 | # define EV_USE_SELECT 0 |
390 | # define EV_USE_SELECT 0 |
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
391 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
367 | # undef EV_USE_CLOCK_SYSCALL |
392 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
408 | |
433 | |
409 | #if !EV_USE_NANOSLEEP |
434 | #if !EV_USE_NANOSLEEP |
410 | /* 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 */ |
411 | # if !defined _WIN32 && !defined __hpux |
436 | # if !defined _WIN32 && !defined __hpux |
412 | # 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 || !EV_USE_EPOLL /* ev_linxaio uses ev_poll.c:ev_epoll_create */ |
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444 | # undef EV_USE_LINUXAIO |
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445 | # define EV_USE_LINUXAIO 0 |
413 | # endif |
446 | # endif |
414 | #endif |
447 | #endif |
415 | |
448 | |
416 | #if EV_USE_INOTIFY |
449 | #if EV_USE_INOTIFY |
417 | # include <sys/statfs.h> |
450 | # include <sys/statfs.h> |
… | |
… | |
485 | /* 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 */ |
486 | /* ECB.H BEGIN */ |
519 | /* ECB.H BEGIN */ |
487 | /* |
520 | /* |
488 | * libecb - http://software.schmorp.de/pkg/libecb |
521 | * libecb - http://software.schmorp.de/pkg/libecb |
489 | * |
522 | * |
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
523 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
491 | * Copyright (©) 2011 Emanuele Giaquinta |
524 | * Copyright (©) 2011 Emanuele Giaquinta |
492 | * All rights reserved. |
525 | * All rights reserved. |
493 | * |
526 | * |
494 | * 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- |
495 | * tion, are permitted provided that the following conditions are met: |
528 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
509 | * 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; |
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
543 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
544 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
545 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
513 | * 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. |
514 | */ |
558 | */ |
515 | |
559 | |
516 | #ifndef ECB_H |
560 | #ifndef ECB_H |
517 | #define ECB_H |
561 | #define ECB_H |
518 | |
562 | |
519 | /* 16 bits major, 16 bits minor */ |
563 | /* 16 bits major, 16 bits minor */ |
520 | #define ECB_VERSION 0x00010003 |
564 | #define ECB_VERSION 0x00010006 |
521 | |
565 | |
522 | #ifdef _WIN32 |
566 | #ifdef _WIN32 |
523 | typedef signed char int8_t; |
567 | typedef signed char int8_t; |
524 | typedef unsigned char uint8_t; |
568 | typedef unsigned char uint8_t; |
525 | typedef signed short int16_t; |
569 | typedef signed short int16_t; |
… | |
… | |
542 | typedef uint32_t uintptr_t; |
586 | typedef uint32_t uintptr_t; |
543 | typedef int32_t intptr_t; |
587 | typedef int32_t intptr_t; |
544 | #endif |
588 | #endif |
545 | #else |
589 | #else |
546 | #include <inttypes.h> |
590 | #include <inttypes.h> |
547 | #if UINTMAX_MAX > 0xffffffffU |
591 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
548 | #define ECB_PTRSIZE 8 |
592 | #define ECB_PTRSIZE 8 |
549 | #else |
593 | #else |
550 | #define ECB_PTRSIZE 4 |
594 | #define ECB_PTRSIZE 4 |
551 | #endif |
595 | #endif |
552 | #endif |
596 | #endif |
553 | |
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 | |
554 | /* work around x32 idiocy by defining proper macros */ |
601 | /* work around x32 idiocy by defining proper macros */ |
555 | #if __x86_64 || _M_AMD64 |
602 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
556 | #if __ILP32 |
603 | #if _ILP32 |
557 | #define ECB_AMD64_X32 1 |
604 | #define ECB_AMD64_X32 1 |
558 | #else |
605 | #else |
559 | #define ECB_AMD64 1 |
606 | #define ECB_AMD64 1 |
560 | #endif |
607 | #endif |
561 | #endif |
608 | #endif |
… | |
… | |
565 | * causing enormous grief in return for some better fake benchmark numbers. |
612 | * causing enormous grief in return for some better fake benchmark numbers. |
566 | * or so. |
613 | * or so. |
567 | * 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 |
568 | * 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. |
569 | */ |
616 | */ |
570 | #ifndef ECB_GCC_VERSION |
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571 | #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__ |
572 | #define ECB_GCC_VERSION(major,minor) 0 |
618 | #define ECB_GCC_VERSION(major,minor) 0 |
573 | #else |
619 | #else |
574 | #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))) |
575 | #endif |
621 | #endif |
576 | #endif |
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577 | |
622 | |
578 | #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))) |
579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
624 | |
580 | #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 | |
581 | #define ECB_CPP (__cplusplus+0) |
637 | #define ECB_CPP (__cplusplus+0) |
582 | #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) |
583 | |
653 | |
584 | #if ECB_CPP |
654 | #if ECB_CPP |
585 | #define ECB_EXTERN_C extern "C" |
655 | #define ECB_EXTERN_C extern "C" |
586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
656 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
587 | #define ECB_EXTERN_C_END } |
657 | #define ECB_EXTERN_C_END } |
… | |
… | |
602 | |
672 | |
603 | #if ECB_NO_SMP |
673 | #if ECB_NO_SMP |
604 | #define ECB_MEMORY_FENCE do { } while (0) |
674 | #define ECB_MEMORY_FENCE do { } while (0) |
605 | #endif |
675 | #endif |
606 | |
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 */ |
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684 | #endif |
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685 | |
607 | #ifndef ECB_MEMORY_FENCE |
686 | #ifndef ECB_MEMORY_FENCE |
608 | #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 |
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688 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
609 | #if __i386 || __i386__ |
689 | #if __i386 || __i386__ |
610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
690 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
691 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
692 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
693 | #elif ECB_GCC_AMD64 |
614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
694 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
695 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
696 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
697 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
698 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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699 | #elif defined __ARM_ARCH_2__ \ |
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700 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
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701 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
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702 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
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703 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
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704 | || defined __ARM_ARCH_5TEJ__ |
|
|
705 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
706 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
707 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
708 | || defined __ARM_ARCH_6T2__ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
709 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
710 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
711 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
712 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
625 | #elif __sparc || __sparc__ |
713 | #elif __aarch64__ |
|
|
714 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
715 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
716 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
717 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
718 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
629 | #elif defined __s390__ || defined __s390x__ |
719 | #elif defined __s390__ || defined __s390x__ |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
720 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
631 | #elif defined __mips__ |
721 | #elif defined __mips__ |
|
|
722 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
723 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
632 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
724 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
633 | #elif defined __alpha__ |
725 | #elif defined __alpha__ |
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
726 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
635 | #elif defined __hppa__ |
727 | #elif defined __hppa__ |
636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
728 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
637 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
729 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
638 | #elif defined __ia64__ |
730 | #elif defined __ia64__ |
639 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
731 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
732 | #elif defined __m68k__ |
|
|
733 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
734 | #elif defined __m88k__ |
|
|
735 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
736 | #elif defined __sh__ |
|
|
737 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
640 | #endif |
738 | #endif |
641 | #endif |
739 | #endif |
642 | #endif |
740 | #endif |
643 | |
741 | |
644 | #ifndef ECB_MEMORY_FENCE |
742 | #ifndef ECB_MEMORY_FENCE |
645 | #if ECB_GCC_VERSION(4,7) |
743 | #if ECB_GCC_VERSION(4,7) |
646 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
744 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
647 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
745 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
746 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
747 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
748 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
648 | |
749 | |
649 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
750 | #elif ECB_CLANG_EXTENSION(c_atomic) |
650 | * without risking compile time errors with other compilers. We *could* |
|
|
651 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
652 | * around this shit time and again. |
|
|
653 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
654 | * // see comment below (stdatomic.h) about the C11 memory model. |
751 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
655 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
752 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
656 | */ |
753 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
754 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
755 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
657 | |
756 | |
658 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
757 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
659 | #define ECB_MEMORY_FENCE __sync_synchronize () |
758 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
759 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
760 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
761 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
762 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
763 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
764 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
660 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
765 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
661 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
766 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
662 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
767 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
663 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
768 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
664 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
769 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
665 | #elif defined _WIN32 |
770 | #elif defined _WIN32 |
666 | #include <WinNT.h> |
771 | #include <WinNT.h> |
667 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
772 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
668 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
773 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
669 | #include <mbarrier.h> |
774 | #include <mbarrier.h> |
670 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
775 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
671 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
776 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
672 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
777 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
778 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
673 | #elif __xlC__ |
779 | #elif __xlC__ |
674 | #define ECB_MEMORY_FENCE __sync () |
780 | #define ECB_MEMORY_FENCE __sync () |
675 | #endif |
781 | #endif |
676 | #endif |
782 | #endif |
677 | |
783 | |
678 | #ifndef ECB_MEMORY_FENCE |
784 | #ifndef ECB_MEMORY_FENCE |
679 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
785 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
680 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
786 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
681 | /* not just C11 atomics and atomic accesses */ |
787 | /* not just C11 atomics and atomic accesses */ |
682 | #include <stdatomic.h> |
788 | #include <stdatomic.h> |
683 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
684 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
685 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
686 | /* for most usages, or gcc and clang have a bug */ |
|
|
687 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
688 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
689 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
789 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
790 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
791 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
690 | #endif |
792 | #endif |
691 | #endif |
793 | #endif |
692 | |
794 | |
693 | #ifndef ECB_MEMORY_FENCE |
795 | #ifndef ECB_MEMORY_FENCE |
694 | #if !ECB_AVOID_PTHREADS |
796 | #if !ECB_AVOID_PTHREADS |
… | |
… | |
714 | |
816 | |
715 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
817 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
716 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
818 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
717 | #endif |
819 | #endif |
718 | |
820 | |
|
|
821 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
822 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
823 | #endif |
|
|
824 | |
719 | /*****************************************************************************/ |
825 | /*****************************************************************************/ |
720 | |
826 | |
721 | #if __cplusplus |
827 | #if ECB_CPP |
722 | #define ecb_inline static inline |
828 | #define ecb_inline static inline |
723 | #elif ECB_GCC_VERSION(2,5) |
829 | #elif ECB_GCC_VERSION(2,5) |
724 | #define ecb_inline static __inline__ |
830 | #define ecb_inline static __inline__ |
725 | #elif ECB_C99 |
831 | #elif ECB_C99 |
726 | #define ecb_inline static inline |
832 | #define ecb_inline static inline |
… | |
… | |
740 | |
846 | |
741 | #define ECB_CONCAT_(a, b) a ## b |
847 | #define ECB_CONCAT_(a, b) a ## b |
742 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
848 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
743 | #define ECB_STRINGIFY_(a) # a |
849 | #define ECB_STRINGIFY_(a) # a |
744 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
850 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
851 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
745 | |
852 | |
746 | #define ecb_function_ ecb_inline |
853 | #define ecb_function_ ecb_inline |
747 | |
854 | |
748 | #if ECB_GCC_VERSION(3,1) |
855 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
749 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
856 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
857 | #else |
|
|
858 | #define ecb_attribute(attrlist) |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
750 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
862 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
863 | #else |
|
|
864 | /* possible C11 impl for integral types |
|
|
865 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
866 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
867 | |
|
|
868 | #define ecb_is_constant(expr) 0 |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
751 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
872 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
873 | #else |
|
|
874 | #define ecb_expect(expr,value) (expr) |
|
|
875 | #endif |
|
|
876 | |
|
|
877 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
752 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
878 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
753 | #else |
879 | #else |
754 | #define ecb_attribute(attrlist) |
|
|
755 | #define ecb_is_constant(expr) 0 |
|
|
756 | #define ecb_expect(expr,value) (expr) |
|
|
757 | #define ecb_prefetch(addr,rw,locality) |
880 | #define ecb_prefetch(addr,rw,locality) |
758 | #endif |
881 | #endif |
759 | |
882 | |
760 | /* no emulation for ecb_decltype */ |
883 | /* no emulation for ecb_decltype */ |
761 | #if ECB_GCC_VERSION(4,5) |
884 | #if ECB_CPP11 |
|
|
885 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
886 | template<class T> struct ecb_decltype_t { typedef T type; }; |
762 | #define ecb_decltype(x) __decltype(x) |
887 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
763 | #elif ECB_GCC_VERSION(3,0) |
888 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
764 | #define ecb_decltype(x) __typeof(x) |
889 | #define ecb_decltype(x) __typeof__ (x) |
765 | #endif |
890 | #endif |
766 | |
891 | |
|
|
892 | #if _MSC_VER >= 1300 |
|
|
893 | #define ecb_deprecated __declspec (deprecated) |
|
|
894 | #else |
|
|
895 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
896 | #endif |
|
|
897 | |
|
|
898 | #if _MSC_VER >= 1500 |
|
|
899 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
900 | #elif ECB_GCC_VERSION(4,5) |
|
|
901 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
902 | #else |
|
|
903 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if _MSC_VER >= 1400 |
|
|
907 | #define ecb_noinline __declspec (noinline) |
|
|
908 | #else |
767 | #define ecb_noinline ecb_attribute ((__noinline__)) |
909 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
910 | #endif |
|
|
911 | |
768 | #define ecb_unused ecb_attribute ((__unused__)) |
912 | #define ecb_unused ecb_attribute ((__unused__)) |
769 | #define ecb_const ecb_attribute ((__const__)) |
913 | #define ecb_const ecb_attribute ((__const__)) |
770 | #define ecb_pure ecb_attribute ((__pure__)) |
914 | #define ecb_pure ecb_attribute ((__pure__)) |
771 | |
915 | |
772 | #if ECB_C11 |
916 | #if ECB_C11 || __IBMC_NORETURN |
|
|
917 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
773 | #define ecb_noreturn _Noreturn |
918 | #define ecb_noreturn _Noreturn |
|
|
919 | #elif ECB_CPP11 |
|
|
920 | #define ecb_noreturn [[noreturn]] |
|
|
921 | #elif _MSC_VER >= 1200 |
|
|
922 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
923 | #define ecb_noreturn __declspec (noreturn) |
774 | #else |
924 | #else |
775 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
925 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
776 | #endif |
926 | #endif |
777 | |
927 | |
778 | #if ECB_GCC_VERSION(4,3) |
928 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
793 | /* for compatibility to the rest of the world */ |
943 | /* for compatibility to the rest of the world */ |
794 | #define ecb_likely(expr) ecb_expect_true (expr) |
944 | #define ecb_likely(expr) ecb_expect_true (expr) |
795 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
945 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
796 | |
946 | |
797 | /* count trailing zero bits and count # of one bits */ |
947 | /* count trailing zero bits and count # of one bits */ |
798 | #if ECB_GCC_VERSION(3,4) |
948 | #if ECB_GCC_VERSION(3,4) \ |
|
|
949 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
950 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
951 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
799 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
952 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
800 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
953 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
801 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
954 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
802 | #define ecb_ctz32(x) __builtin_ctz (x) |
955 | #define ecb_ctz32(x) __builtin_ctz (x) |
803 | #define ecb_ctz64(x) __builtin_ctzll (x) |
956 | #define ecb_ctz64(x) __builtin_ctzll (x) |
804 | #define ecb_popcount32(x) __builtin_popcount (x) |
957 | #define ecb_popcount32(x) __builtin_popcount (x) |
805 | /* no popcountll */ |
958 | /* no popcountll */ |
806 | #else |
959 | #else |
807 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
960 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
808 | ecb_function_ int |
961 | ecb_function_ ecb_const int |
809 | ecb_ctz32 (uint32_t x) |
962 | ecb_ctz32 (uint32_t x) |
810 | { |
963 | { |
|
|
964 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
965 | unsigned long r; |
|
|
966 | _BitScanForward (&r, x); |
|
|
967 | return (int)r; |
|
|
968 | #else |
811 | int r = 0; |
969 | int r = 0; |
812 | |
970 | |
813 | x &= ~x + 1; /* this isolates the lowest bit */ |
971 | x &= ~x + 1; /* this isolates the lowest bit */ |
814 | |
972 | |
815 | #if ECB_branchless_on_i386 |
973 | #if ECB_branchless_on_i386 |
… | |
… | |
825 | if (x & 0xff00ff00) r += 8; |
983 | if (x & 0xff00ff00) r += 8; |
826 | if (x & 0xffff0000) r += 16; |
984 | if (x & 0xffff0000) r += 16; |
827 | #endif |
985 | #endif |
828 | |
986 | |
829 | return r; |
987 | return r; |
|
|
988 | #endif |
830 | } |
989 | } |
831 | |
990 | |
832 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
991 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
833 | ecb_function_ int |
992 | ecb_function_ ecb_const int |
834 | ecb_ctz64 (uint64_t x) |
993 | ecb_ctz64 (uint64_t x) |
835 | { |
994 | { |
|
|
995 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
996 | unsigned long r; |
|
|
997 | _BitScanForward64 (&r, x); |
|
|
998 | return (int)r; |
|
|
999 | #else |
836 | int shift = x & 0xffffffffU ? 0 : 32; |
1000 | int shift = x & 0xffffffff ? 0 : 32; |
837 | return ecb_ctz32 (x >> shift) + shift; |
1001 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1002 | #endif |
838 | } |
1003 | } |
839 | |
1004 | |
840 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
841 | ecb_function_ int |
1006 | ecb_function_ ecb_const int |
842 | ecb_popcount32 (uint32_t x) |
1007 | ecb_popcount32 (uint32_t x) |
843 | { |
1008 | { |
844 | x -= (x >> 1) & 0x55555555; |
1009 | x -= (x >> 1) & 0x55555555; |
845 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
1010 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
846 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
1011 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
847 | x *= 0x01010101; |
1012 | x *= 0x01010101; |
848 | |
1013 | |
849 | return x >> 24; |
1014 | return x >> 24; |
850 | } |
1015 | } |
851 | |
1016 | |
852 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
1017 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
853 | ecb_function_ int ecb_ld32 (uint32_t x) |
1018 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
854 | { |
1019 | { |
|
|
1020 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1021 | unsigned long r; |
|
|
1022 | _BitScanReverse (&r, x); |
|
|
1023 | return (int)r; |
|
|
1024 | #else |
855 | int r = 0; |
1025 | int r = 0; |
856 | |
1026 | |
857 | if (x >> 16) { x >>= 16; r += 16; } |
1027 | if (x >> 16) { x >>= 16; r += 16; } |
858 | if (x >> 8) { x >>= 8; r += 8; } |
1028 | if (x >> 8) { x >>= 8; r += 8; } |
859 | if (x >> 4) { x >>= 4; r += 4; } |
1029 | if (x >> 4) { x >>= 4; r += 4; } |
860 | if (x >> 2) { x >>= 2; r += 2; } |
1030 | if (x >> 2) { x >>= 2; r += 2; } |
861 | if (x >> 1) { r += 1; } |
1031 | if (x >> 1) { r += 1; } |
862 | |
1032 | |
863 | return r; |
1033 | return r; |
|
|
1034 | #endif |
864 | } |
1035 | } |
865 | |
1036 | |
866 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1037 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
867 | ecb_function_ int ecb_ld64 (uint64_t x) |
1038 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
868 | { |
1039 | { |
|
|
1040 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1041 | unsigned long r; |
|
|
1042 | _BitScanReverse64 (&r, x); |
|
|
1043 | return (int)r; |
|
|
1044 | #else |
869 | int r = 0; |
1045 | int r = 0; |
870 | |
1046 | |
871 | if (x >> 32) { x >>= 32; r += 32; } |
1047 | if (x >> 32) { x >>= 32; r += 32; } |
872 | |
1048 | |
873 | return r + ecb_ld32 (x); |
1049 | return r + ecb_ld32 (x); |
|
|
1050 | #endif |
874 | } |
1051 | } |
875 | #endif |
1052 | #endif |
876 | |
1053 | |
877 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1054 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
878 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1055 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
879 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1056 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
880 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1057 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
881 | |
1058 | |
882 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1059 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
883 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1060 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
884 | { |
1061 | { |
885 | return ( (x * 0x0802U & 0x22110U) |
1062 | return ( (x * 0x0802U & 0x22110U) |
886 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1063 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
887 | } |
1064 | } |
888 | |
1065 | |
889 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1066 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
890 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1067 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
891 | { |
1068 | { |
892 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1069 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
893 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1070 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
894 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1071 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
895 | x = ( x >> 8 ) | ( x << 8); |
1072 | x = ( x >> 8 ) | ( x << 8); |
896 | |
1073 | |
897 | return x; |
1074 | return x; |
898 | } |
1075 | } |
899 | |
1076 | |
900 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1077 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
901 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1078 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
902 | { |
1079 | { |
903 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1080 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
904 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1081 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
905 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1082 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
906 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1083 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
909 | return x; |
1086 | return x; |
910 | } |
1087 | } |
911 | |
1088 | |
912 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1089 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
913 | /* so for this version we are lazy */ |
1090 | /* so for this version we are lazy */ |
914 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1091 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
915 | ecb_function_ int |
1092 | ecb_function_ ecb_const int |
916 | ecb_popcount64 (uint64_t x) |
1093 | ecb_popcount64 (uint64_t x) |
917 | { |
1094 | { |
918 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1095 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
919 | } |
1096 | } |
920 | |
1097 | |
921 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1098 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
922 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1099 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
923 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1100 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
924 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1101 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
925 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1102 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
926 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1103 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
927 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1104 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
928 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1105 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
929 | |
1106 | |
930 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1107 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
931 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1108 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
932 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1109 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
933 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1110 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
934 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1111 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
935 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1112 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
936 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1113 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
937 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1114 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
938 | |
1115 | |
939 | #if ECB_GCC_VERSION(4,3) |
1116 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1117 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1118 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1119 | #else |
940 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1120 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1121 | #endif |
941 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1122 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
942 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1123 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1124 | #elif _MSC_VER |
|
|
1125 | #include <stdlib.h> |
|
|
1126 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1127 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1128 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
943 | #else |
1129 | #else |
944 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1130 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
945 | ecb_function_ uint16_t |
1131 | ecb_function_ ecb_const uint16_t |
946 | ecb_bswap16 (uint16_t x) |
1132 | ecb_bswap16 (uint16_t x) |
947 | { |
1133 | { |
948 | return ecb_rotl16 (x, 8); |
1134 | return ecb_rotl16 (x, 8); |
949 | } |
1135 | } |
950 | |
1136 | |
951 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1137 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
952 | ecb_function_ uint32_t |
1138 | ecb_function_ ecb_const uint32_t |
953 | ecb_bswap32 (uint32_t x) |
1139 | ecb_bswap32 (uint32_t x) |
954 | { |
1140 | { |
955 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1141 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
956 | } |
1142 | } |
957 | |
1143 | |
958 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1144 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
959 | ecb_function_ uint64_t |
1145 | ecb_function_ ecb_const uint64_t |
960 | ecb_bswap64 (uint64_t x) |
1146 | ecb_bswap64 (uint64_t x) |
961 | { |
1147 | { |
962 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1148 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
963 | } |
1149 | } |
964 | #endif |
1150 | #endif |
965 | |
1151 | |
966 | #if ECB_GCC_VERSION(4,5) |
1152 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
967 | #define ecb_unreachable() __builtin_unreachable () |
1153 | #define ecb_unreachable() __builtin_unreachable () |
968 | #else |
1154 | #else |
969 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1155 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
970 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1156 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
971 | ecb_inline void ecb_unreachable (void) { } |
1157 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
972 | #endif |
1158 | #endif |
973 | |
1159 | |
974 | /* try to tell the compiler that some condition is definitely true */ |
1160 | /* try to tell the compiler that some condition is definitely true */ |
975 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1161 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
976 | |
1162 | |
977 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1163 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
978 | ecb_inline unsigned char |
1164 | ecb_inline ecb_const uint32_t |
979 | ecb_byteorder_helper (void) |
1165 | ecb_byteorder_helper (void) |
980 | { |
1166 | { |
981 | /* the union code still generates code under pressure in gcc, */ |
1167 | /* the union code still generates code under pressure in gcc, */ |
982 | /* but less than using pointers, and always seems to */ |
1168 | /* but less than using pointers, and always seems to */ |
983 | /* successfully return a constant. */ |
1169 | /* successfully return a constant. */ |
984 | /* the reason why we have this horrible preprocessor mess */ |
1170 | /* the reason why we have this horrible preprocessor mess */ |
985 | /* is to avoid it in all cases, at least on common architectures */ |
1171 | /* is to avoid it in all cases, at least on common architectures */ |
986 | /* or when using a recent enough gcc version (>= 4.6) */ |
1172 | /* or when using a recent enough gcc version (>= 4.6) */ |
987 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
988 | return 0x44; |
|
|
989 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1173 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1174 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1175 | #define ECB_LITTLE_ENDIAN 1 |
990 | return 0x44; |
1176 | return 0x44332211; |
991 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1177 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1178 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1179 | #define ECB_BIG_ENDIAN 1 |
992 | return 0x11; |
1180 | return 0x11223344; |
993 | #else |
1181 | #else |
994 | union |
1182 | union |
995 | { |
1183 | { |
|
|
1184 | uint8_t c[4]; |
996 | uint32_t i; |
1185 | uint32_t u; |
997 | uint8_t c; |
|
|
998 | } u = { 0x11223344 }; |
1186 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
999 | return u.c; |
1187 | return u.u; |
1000 | #endif |
1188 | #endif |
1001 | } |
1189 | } |
1002 | |
1190 | |
1003 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1191 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1004 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1192 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
1005 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1193 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1006 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1194 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
1007 | |
1195 | |
1008 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1196 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1009 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1197 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1010 | #else |
1198 | #else |
1011 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1199 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1012 | #endif |
1200 | #endif |
1013 | |
1201 | |
1014 | #if __cplusplus |
1202 | #if ECB_CPP |
1015 | template<typename T> |
1203 | template<typename T> |
1016 | static inline T ecb_div_rd (T val, T div) |
1204 | static inline T ecb_div_rd (T val, T div) |
1017 | { |
1205 | { |
1018 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1206 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1019 | } |
1207 | } |
… | |
… | |
1036 | } |
1224 | } |
1037 | #else |
1225 | #else |
1038 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1226 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1039 | #endif |
1227 | #endif |
1040 | |
1228 | |
|
|
1229 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint32_t |
|
|
1231 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1234 | int e = (x >> 10) & 0x001f; |
|
|
1235 | unsigned int m = x & 0x03ff; |
|
|
1236 | |
|
|
1237 | if (ecb_expect_false (e == 31)) |
|
|
1238 | /* infinity or NaN */ |
|
|
1239 | e = 255 - (127 - 15); |
|
|
1240 | else if (ecb_expect_false (!e)) |
|
|
1241 | { |
|
|
1242 | if (ecb_expect_true (!m)) |
|
|
1243 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1244 | e = 0 - (127 - 15); |
|
|
1245 | else |
|
|
1246 | { |
|
|
1247 | /* subnormal, renormalise */ |
|
|
1248 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1249 | |
|
|
1250 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1251 | e -= s - 1; |
|
|
1252 | } |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1256 | e += 127 - 15; |
|
|
1257 | |
|
|
1258 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1262 | ecb_function_ ecb_const uint16_t |
|
|
1263 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1264 | { |
|
|
1265 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1266 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1267 | unsigned int m = x & 0x007fffff; |
|
|
1268 | |
|
|
1269 | x &= 0x7fffffff; |
|
|
1270 | |
|
|
1271 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1272 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1273 | { |
|
|
1274 | /* mantissa round-to-even */ |
|
|
1275 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1276 | |
|
|
1277 | /* handle overflow */ |
|
|
1278 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1279 | { |
|
|
1280 | m >>= 1; |
|
|
1281 | e += 1; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle large numbers and infinity */ |
|
|
1288 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1289 | return s | 0x7c00; |
|
|
1290 | |
|
|
1291 | /* handle zero, subnormals and small numbers */ |
|
|
1292 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1293 | { |
|
|
1294 | /* zero */ |
|
|
1295 | if (ecb_expect_true (!x)) |
|
|
1296 | return s; |
|
|
1297 | |
|
|
1298 | /* handle subnormals */ |
|
|
1299 | |
|
|
1300 | /* too small, will be zero */ |
|
|
1301 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1302 | return s; |
|
|
1303 | |
|
|
1304 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1305 | |
|
|
1306 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1307 | { |
|
|
1308 | unsigned int bits = 14 - e; |
|
|
1309 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1310 | unsigned int even = (m >> bits) & 1; |
|
|
1311 | |
|
|
1312 | /* if this overflows, we will end up with a normalised number */ |
|
|
1313 | m = (m + half + even) >> bits; |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | return s | m; |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1320 | m >>= 13; |
|
|
1321 | |
|
|
1322 | return s | 0x7c00 | m | !m; |
|
|
1323 | } |
|
|
1324 | |
1041 | /*******************************************************************************/ |
1325 | /*******************************************************************************/ |
1042 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1326 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1043 | |
1327 | |
1044 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1328 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1045 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1329 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1046 | #if 0 \ |
1330 | #if 0 \ |
1047 | || __i386 || __i386__ \ |
1331 | || __i386 || __i386__ \ |
1048 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1332 | || ECB_GCC_AMD64 \ |
1049 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1333 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1050 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1051 | || defined __s390__ || defined __s390x__ \ |
1334 | || defined __s390__ || defined __s390x__ \ |
1052 | || defined __mips__ \ |
1335 | || defined __mips__ \ |
1053 | || defined __alpha__ \ |
1336 | || defined __alpha__ \ |
1054 | || defined __hppa__ \ |
1337 | || defined __hppa__ \ |
1055 | || defined __ia64__ \ |
1338 | || defined __ia64__ \ |
|
|
1339 | || defined __m68k__ \ |
|
|
1340 | || defined __m88k__ \ |
|
|
1341 | || defined __sh__ \ |
1056 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1342 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1343 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1344 | || defined __aarch64__ |
1057 | #define ECB_STDFP 1 |
1345 | #define ECB_STDFP 1 |
1058 | #include <string.h> /* for memcpy */ |
1346 | #include <string.h> /* for memcpy */ |
1059 | #else |
1347 | #else |
1060 | #define ECB_STDFP 0 |
1348 | #define ECB_STDFP 0 |
1061 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1062 | #endif |
1349 | #endif |
1063 | |
1350 | |
1064 | #ifndef ECB_NO_LIBM |
1351 | #ifndef ECB_NO_LIBM |
1065 | |
1352 | |
|
|
1353 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1354 | |
|
|
1355 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1356 | #ifdef INFINITY |
|
|
1357 | #define ECB_INFINITY INFINITY |
|
|
1358 | #else |
|
|
1359 | #define ECB_INFINITY HUGE_VAL |
|
|
1360 | #endif |
|
|
1361 | |
|
|
1362 | #ifdef NAN |
|
|
1363 | #define ECB_NAN NAN |
|
|
1364 | #else |
|
|
1365 | #define ECB_NAN ECB_INFINITY |
|
|
1366 | #endif |
|
|
1367 | |
|
|
1368 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1369 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1370 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1371 | #else |
|
|
1372 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1373 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1374 | #endif |
|
|
1375 | |
1066 | /* convert a float to ieee single/binary32 */ |
1376 | /* convert a float to ieee single/binary32 */ |
1067 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1377 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1068 | ecb_function_ uint32_t |
1378 | ecb_function_ ecb_const uint32_t |
1069 | ecb_float_to_binary32 (float x) |
1379 | ecb_float_to_binary32 (float x) |
1070 | { |
1380 | { |
1071 | uint32_t r; |
1381 | uint32_t r; |
1072 | |
1382 | |
1073 | #if ECB_STDFP |
1383 | #if ECB_STDFP |
… | |
… | |
1080 | if (x == 0e0f ) return 0x00000000U; |
1390 | if (x == 0e0f ) return 0x00000000U; |
1081 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1391 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1082 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1392 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1083 | if (x != x ) return 0x7fbfffffU; |
1393 | if (x != x ) return 0x7fbfffffU; |
1084 | |
1394 | |
1085 | m = frexpf (x, &e) * 0x1000000U; |
1395 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1086 | |
1396 | |
1087 | r = m & 0x80000000U; |
1397 | r = m & 0x80000000U; |
1088 | |
1398 | |
1089 | if (r) |
1399 | if (r) |
1090 | m = -m; |
1400 | m = -m; |
… | |
… | |
1102 | |
1412 | |
1103 | return r; |
1413 | return r; |
1104 | } |
1414 | } |
1105 | |
1415 | |
1106 | /* converts an ieee single/binary32 to a float */ |
1416 | /* converts an ieee single/binary32 to a float */ |
1107 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1417 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1108 | ecb_function_ float |
1418 | ecb_function_ ecb_const float |
1109 | ecb_binary32_to_float (uint32_t x) |
1419 | ecb_binary32_to_float (uint32_t x) |
1110 | { |
1420 | { |
1111 | float r; |
1421 | float r; |
1112 | |
1422 | |
1113 | #if ECB_STDFP |
1423 | #if ECB_STDFP |
… | |
… | |
1123 | x |= 0x800000U; |
1433 | x |= 0x800000U; |
1124 | else |
1434 | else |
1125 | e = 1; |
1435 | e = 1; |
1126 | |
1436 | |
1127 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1437 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1128 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1438 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1129 | |
1439 | |
1130 | r = neg ? -r : r; |
1440 | r = neg ? -r : r; |
1131 | #endif |
1441 | #endif |
1132 | |
1442 | |
1133 | return r; |
1443 | return r; |
1134 | } |
1444 | } |
1135 | |
1445 | |
1136 | /* convert a double to ieee double/binary64 */ |
1446 | /* convert a double to ieee double/binary64 */ |
1137 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1447 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1138 | ecb_function_ uint64_t |
1448 | ecb_function_ ecb_const uint64_t |
1139 | ecb_double_to_binary64 (double x) |
1449 | ecb_double_to_binary64 (double x) |
1140 | { |
1450 | { |
1141 | uint64_t r; |
1451 | uint64_t r; |
1142 | |
1452 | |
1143 | #if ECB_STDFP |
1453 | #if ECB_STDFP |
… | |
… | |
1172 | |
1482 | |
1173 | return r; |
1483 | return r; |
1174 | } |
1484 | } |
1175 | |
1485 | |
1176 | /* converts an ieee double/binary64 to a double */ |
1486 | /* converts an ieee double/binary64 to a double */ |
1177 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1487 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1178 | ecb_function_ double |
1488 | ecb_function_ ecb_const double |
1179 | ecb_binary64_to_double (uint64_t x) |
1489 | ecb_binary64_to_double (uint64_t x) |
1180 | { |
1490 | { |
1181 | double r; |
1491 | double r; |
1182 | |
1492 | |
1183 | #if ECB_STDFP |
1493 | #if ECB_STDFP |
… | |
… | |
1199 | |
1509 | |
1200 | r = neg ? -r : r; |
1510 | r = neg ? -r : r; |
1201 | #endif |
1511 | #endif |
1202 | |
1512 | |
1203 | return r; |
1513 | return r; |
|
|
1514 | } |
|
|
1515 | |
|
|
1516 | /* convert a float to ieee half/binary16 */ |
|
|
1517 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1518 | ecb_function_ ecb_const uint16_t |
|
|
1519 | ecb_float_to_binary16 (float x) |
|
|
1520 | { |
|
|
1521 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1522 | } |
|
|
1523 | |
|
|
1524 | /* convert an ieee half/binary16 to float */ |
|
|
1525 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1526 | ecb_function_ ecb_const float |
|
|
1527 | ecb_binary16_to_float (uint16_t x) |
|
|
1528 | { |
|
|
1529 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
1204 | } |
1530 | } |
1205 | |
1531 | |
1206 | #endif |
1532 | #endif |
1207 | |
1533 | |
1208 | #endif |
1534 | #endif |
… | |
… | |
1233 | #define inline_size ecb_inline |
1559 | #define inline_size ecb_inline |
1234 | |
1560 | |
1235 | #if EV_FEATURE_CODE |
1561 | #if EV_FEATURE_CODE |
1236 | # define inline_speed ecb_inline |
1562 | # define inline_speed ecb_inline |
1237 | #else |
1563 | #else |
1238 | # define inline_speed static noinline |
1564 | # define inline_speed noinline static |
1239 | #endif |
1565 | #endif |
1240 | |
1566 | |
1241 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1567 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1242 | |
1568 | |
1243 | #if EV_MINPRI == EV_MAXPRI |
1569 | #if EV_MINPRI == EV_MAXPRI |
1244 | # define ABSPRI(w) (((W)w), 0) |
1570 | # define ABSPRI(w) (((W)w), 0) |
1245 | #else |
1571 | #else |
1246 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1572 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1247 | #endif |
1573 | #endif |
1248 | |
1574 | |
1249 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1575 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1250 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
1251 | |
1576 | |
1252 | typedef ev_watcher *W; |
1577 | typedef ev_watcher *W; |
1253 | typedef ev_watcher_list *WL; |
1578 | typedef ev_watcher_list *WL; |
1254 | typedef ev_watcher_time *WT; |
1579 | typedef ev_watcher_time *WT; |
1255 | |
1580 | |
… | |
… | |
1280 | # include "ev_win32.c" |
1605 | # include "ev_win32.c" |
1281 | #endif |
1606 | #endif |
1282 | |
1607 | |
1283 | /*****************************************************************************/ |
1608 | /*****************************************************************************/ |
1284 | |
1609 | |
|
|
1610 | #if EV_USE_LINUXAIO |
|
|
1611 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1612 | #endif |
|
|
1613 | |
1285 | /* define a suitable floor function (only used by periodics atm) */ |
1614 | /* define a suitable floor function (only used by periodics atm) */ |
1286 | |
1615 | |
1287 | #if EV_USE_FLOOR |
1616 | #if EV_USE_FLOOR |
1288 | # include <math.h> |
1617 | # include <math.h> |
1289 | # define ev_floor(v) floor (v) |
1618 | # define ev_floor(v) floor (v) |
1290 | #else |
1619 | #else |
1291 | |
1620 | |
1292 | #include <float.h> |
1621 | #include <float.h> |
1293 | |
1622 | |
1294 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1623 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1624 | noinline |
1295 | static ev_tstamp noinline |
1625 | static ev_tstamp |
1296 | ev_floor (ev_tstamp v) |
1626 | ev_floor (ev_tstamp v) |
1297 | { |
1627 | { |
1298 | /* the choice of shift factor is not terribly important */ |
1628 | /* the choice of shift factor is not terribly important */ |
1299 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1629 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1300 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1630 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1332 | |
1662 | |
1333 | #ifdef __linux |
1663 | #ifdef __linux |
1334 | # include <sys/utsname.h> |
1664 | # include <sys/utsname.h> |
1335 | #endif |
1665 | #endif |
1336 | |
1666 | |
1337 | static unsigned int noinline ecb_cold |
1667 | noinline ecb_cold |
|
|
1668 | static unsigned int |
1338 | ev_linux_version (void) |
1669 | ev_linux_version (void) |
1339 | { |
1670 | { |
1340 | #ifdef __linux |
1671 | #ifdef __linux |
1341 | unsigned int v = 0; |
1672 | unsigned int v = 0; |
1342 | struct utsname buf; |
1673 | struct utsname buf; |
… | |
… | |
1371 | } |
1702 | } |
1372 | |
1703 | |
1373 | /*****************************************************************************/ |
1704 | /*****************************************************************************/ |
1374 | |
1705 | |
1375 | #if EV_AVOID_STDIO |
1706 | #if EV_AVOID_STDIO |
1376 | static void noinline ecb_cold |
1707 | noinline ecb_cold |
|
|
1708 | static void |
1377 | ev_printerr (const char *msg) |
1709 | ev_printerr (const char *msg) |
1378 | { |
1710 | { |
1379 | write (STDERR_FILENO, msg, strlen (msg)); |
1711 | write (STDERR_FILENO, msg, strlen (msg)); |
1380 | } |
1712 | } |
1381 | #endif |
1713 | #endif |
1382 | |
1714 | |
1383 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1715 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1384 | |
1716 | |
1385 | void ecb_cold |
1717 | ecb_cold |
|
|
1718 | void |
1386 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1719 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1387 | { |
1720 | { |
1388 | syserr_cb = cb; |
1721 | syserr_cb = cb; |
1389 | } |
1722 | } |
1390 | |
1723 | |
1391 | static void noinline ecb_cold |
1724 | noinline ecb_cold |
|
|
1725 | static void |
1392 | ev_syserr (const char *msg) |
1726 | ev_syserr (const char *msg) |
1393 | { |
1727 | { |
1394 | if (!msg) |
1728 | if (!msg) |
1395 | msg = "(libev) system error"; |
1729 | msg = "(libev) system error"; |
1396 | |
1730 | |
… | |
… | |
1409 | abort (); |
1743 | abort (); |
1410 | } |
1744 | } |
1411 | } |
1745 | } |
1412 | |
1746 | |
1413 | static void * |
1747 | static void * |
1414 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1748 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1415 | { |
1749 | { |
1416 | /* some systems, notably openbsd and darwin, fail to properly |
1750 | /* some systems, notably openbsd and darwin, fail to properly |
1417 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1751 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1418 | * the single unix specification, so work around them here. |
1752 | * the single unix specification, so work around them here. |
1419 | * recently, also (at least) fedora and debian started breaking it, |
1753 | * recently, also (at least) fedora and debian started breaking it, |
… | |
… | |
1425 | |
1759 | |
1426 | free (ptr); |
1760 | free (ptr); |
1427 | return 0; |
1761 | return 0; |
1428 | } |
1762 | } |
1429 | |
1763 | |
1430 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1764 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1431 | |
1765 | |
1432 | void ecb_cold |
1766 | ecb_cold |
|
|
1767 | void |
1433 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1768 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1434 | { |
1769 | { |
1435 | alloc = cb; |
1770 | alloc = cb; |
1436 | } |
1771 | } |
1437 | |
1772 | |
1438 | inline_speed void * |
1773 | inline_speed void * |
… | |
… | |
1465 | typedef struct |
1800 | typedef struct |
1466 | { |
1801 | { |
1467 | WL head; |
1802 | WL head; |
1468 | unsigned char events; /* the events watched for */ |
1803 | unsigned char events; /* the events watched for */ |
1469 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1804 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
1470 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1805 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
1471 | unsigned char unused; |
1806 | unsigned char unused; |
1472 | #if EV_USE_EPOLL |
1807 | #if EV_USE_EPOLL |
1473 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1808 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1474 | #endif |
1809 | #endif |
1475 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
1810 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
… | |
… | |
1555 | |
1890 | |
1556 | /*****************************************************************************/ |
1891 | /*****************************************************************************/ |
1557 | |
1892 | |
1558 | #ifndef EV_HAVE_EV_TIME |
1893 | #ifndef EV_HAVE_EV_TIME |
1559 | ev_tstamp |
1894 | ev_tstamp |
1560 | ev_time (void) EV_THROW |
1895 | ev_time (void) EV_NOEXCEPT |
1561 | { |
1896 | { |
1562 | #if EV_USE_REALTIME |
1897 | #if EV_USE_REALTIME |
1563 | if (expect_true (have_realtime)) |
1898 | if (expect_true (have_realtime)) |
1564 | { |
1899 | { |
1565 | struct timespec ts; |
1900 | struct timespec ts; |
… | |
… | |
1589 | return ev_time (); |
1924 | return ev_time (); |
1590 | } |
1925 | } |
1591 | |
1926 | |
1592 | #if EV_MULTIPLICITY |
1927 | #if EV_MULTIPLICITY |
1593 | ev_tstamp |
1928 | ev_tstamp |
1594 | ev_now (EV_P) EV_THROW |
1929 | ev_now (EV_P) EV_NOEXCEPT |
1595 | { |
1930 | { |
1596 | return ev_rt_now; |
1931 | return ev_rt_now; |
1597 | } |
1932 | } |
1598 | #endif |
1933 | #endif |
1599 | |
1934 | |
1600 | void |
1935 | void |
1601 | ev_sleep (ev_tstamp delay) EV_THROW |
1936 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1602 | { |
1937 | { |
1603 | if (delay > 0.) |
1938 | if (delay > 0.) |
1604 | { |
1939 | { |
1605 | #if EV_USE_NANOSLEEP |
1940 | #if EV_USE_NANOSLEEP |
1606 | struct timespec ts; |
1941 | struct timespec ts; |
1607 | |
1942 | |
1608 | EV_TS_SET (ts, delay); |
1943 | EV_TS_SET (ts, delay); |
1609 | nanosleep (&ts, 0); |
1944 | nanosleep (&ts, 0); |
1610 | #elif defined _WIN32 |
1945 | #elif defined _WIN32 |
|
|
1946 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1947 | /* compared to select (µs) or nanosleep (ns) */ |
1611 | Sleep ((unsigned long)(delay * 1e3)); |
1948 | Sleep ((unsigned long)(delay * 1e3)); |
1612 | #else |
1949 | #else |
1613 | struct timeval tv; |
1950 | struct timeval tv; |
1614 | |
1951 | |
1615 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1952 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1646 | } |
1983 | } |
1647 | |
1984 | |
1648 | return ncur; |
1985 | return ncur; |
1649 | } |
1986 | } |
1650 | |
1987 | |
1651 | static void * noinline ecb_cold |
1988 | noinline ecb_cold |
|
|
1989 | static void * |
1652 | array_realloc (int elem, void *base, int *cur, int cnt) |
1990 | array_realloc (int elem, void *base, int *cur, int cnt) |
1653 | { |
1991 | { |
1654 | *cur = array_nextsize (elem, *cur, cnt); |
1992 | *cur = array_nextsize (elem, *cur, cnt); |
1655 | return ev_realloc (base, elem * *cur); |
1993 | return ev_realloc (base, elem * *cur); |
1656 | } |
1994 | } |
1657 | |
1995 | |
|
|
1996 | #define array_needsize_noinit(base,offset,count) |
|
|
1997 | |
1658 | #define array_init_zero(base,count) \ |
1998 | #define array_needsize_zerofill(base,offset,count) \ |
1659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1999 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
1660 | |
2000 | |
1661 | #define array_needsize(type,base,cur,cnt,init) \ |
2001 | #define array_needsize(type,base,cur,cnt,init) \ |
1662 | if (expect_false ((cnt) > (cur))) \ |
2002 | if (expect_false ((cnt) > (cur))) \ |
1663 | { \ |
2003 | { \ |
1664 | int ecb_unused ocur_ = (cur); \ |
2004 | ecb_unused int ocur_ = (cur); \ |
1665 | (base) = (type *)array_realloc \ |
2005 | (base) = (type *)array_realloc \ |
1666 | (sizeof (type), (base), &(cur), (cnt)); \ |
2006 | (sizeof (type), (base), &(cur), (cnt)); \ |
1667 | init ((base) + (ocur_), (cur) - ocur_); \ |
2007 | init ((base), ocur_, ((cur) - ocur_)); \ |
1668 | } |
2008 | } |
1669 | |
2009 | |
1670 | #if 0 |
2010 | #if 0 |
1671 | #define array_slim(type,stem) \ |
2011 | #define array_slim(type,stem) \ |
1672 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2012 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
1681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2021 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1682 | |
2022 | |
1683 | /*****************************************************************************/ |
2023 | /*****************************************************************************/ |
1684 | |
2024 | |
1685 | /* dummy callback for pending events */ |
2025 | /* dummy callback for pending events */ |
1686 | static void noinline |
2026 | noinline |
|
|
2027 | static void |
1687 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2028 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1688 | { |
2029 | { |
1689 | } |
2030 | } |
1690 | |
2031 | |
1691 | void noinline |
2032 | noinline |
|
|
2033 | void |
1692 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2034 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1693 | { |
2035 | { |
1694 | W w_ = (W)w; |
2036 | W w_ = (W)w; |
1695 | int pri = ABSPRI (w_); |
2037 | int pri = ABSPRI (w_); |
1696 | |
2038 | |
1697 | if (expect_false (w_->pending)) |
2039 | if (expect_false (w_->pending)) |
1698 | pendings [pri][w_->pending - 1].events |= revents; |
2040 | pendings [pri][w_->pending - 1].events |= revents; |
1699 | else |
2041 | else |
1700 | { |
2042 | { |
1701 | w_->pending = ++pendingcnt [pri]; |
2043 | w_->pending = ++pendingcnt [pri]; |
1702 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2044 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
1703 | pendings [pri][w_->pending - 1].w = w_; |
2045 | pendings [pri][w_->pending - 1].w = w_; |
1704 | pendings [pri][w_->pending - 1].events = revents; |
2046 | pendings [pri][w_->pending - 1].events = revents; |
1705 | } |
2047 | } |
1706 | |
2048 | |
1707 | pendingpri = NUMPRI - 1; |
2049 | pendingpri = NUMPRI - 1; |
1708 | } |
2050 | } |
1709 | |
2051 | |
1710 | inline_speed void |
2052 | inline_speed void |
1711 | feed_reverse (EV_P_ W w) |
2053 | feed_reverse (EV_P_ W w) |
1712 | { |
2054 | { |
1713 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2055 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
1714 | rfeeds [rfeedcnt++] = w; |
2056 | rfeeds [rfeedcnt++] = w; |
1715 | } |
2057 | } |
1716 | |
2058 | |
1717 | inline_size void |
2059 | inline_size void |
1718 | feed_reverse_done (EV_P_ int revents) |
2060 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
1758 | if (expect_true (!anfd->reify)) |
2100 | if (expect_true (!anfd->reify)) |
1759 | fd_event_nocheck (EV_A_ fd, revents); |
2101 | fd_event_nocheck (EV_A_ fd, revents); |
1760 | } |
2102 | } |
1761 | |
2103 | |
1762 | void |
2104 | void |
1763 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2105 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1764 | { |
2106 | { |
1765 | if (fd >= 0 && fd < anfdmax) |
2107 | if (fd >= 0 && fd < anfdmax) |
1766 | fd_event_nocheck (EV_A_ fd, revents); |
2108 | fd_event_nocheck (EV_A_ fd, revents); |
1767 | } |
2109 | } |
1768 | |
2110 | |
… | |
… | |
1805 | ev_io *w; |
2147 | ev_io *w; |
1806 | |
2148 | |
1807 | unsigned char o_events = anfd->events; |
2149 | unsigned char o_events = anfd->events; |
1808 | unsigned char o_reify = anfd->reify; |
2150 | unsigned char o_reify = anfd->reify; |
1809 | |
2151 | |
1810 | anfd->reify = 0; |
2152 | anfd->reify = 0; |
1811 | |
2153 | |
1812 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2154 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1813 | { |
2155 | { |
1814 | anfd->events = 0; |
2156 | anfd->events = 0; |
1815 | |
2157 | |
… | |
… | |
1826 | |
2168 | |
1827 | fdchangecnt = 0; |
2169 | fdchangecnt = 0; |
1828 | } |
2170 | } |
1829 | |
2171 | |
1830 | /* something about the given fd changed */ |
2172 | /* something about the given fd changed */ |
1831 | inline_size void |
2173 | inline_size |
|
|
2174 | void |
1832 | fd_change (EV_P_ int fd, int flags) |
2175 | fd_change (EV_P_ int fd, int flags) |
1833 | { |
2176 | { |
1834 | unsigned char reify = anfds [fd].reify; |
2177 | unsigned char reify = anfds [fd].reify; |
1835 | anfds [fd].reify |= flags; |
2178 | anfds [fd].reify |= flags; |
1836 | |
2179 | |
1837 | if (expect_true (!reify)) |
2180 | if (expect_true (!reify)) |
1838 | { |
2181 | { |
1839 | ++fdchangecnt; |
2182 | ++fdchangecnt; |
1840 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2183 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
1841 | fdchanges [fdchangecnt - 1] = fd; |
2184 | fdchanges [fdchangecnt - 1] = fd; |
1842 | } |
2185 | } |
1843 | } |
2186 | } |
1844 | |
2187 | |
1845 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2188 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1846 | inline_speed void ecb_cold |
2189 | inline_speed ecb_cold void |
1847 | fd_kill (EV_P_ int fd) |
2190 | fd_kill (EV_P_ int fd) |
1848 | { |
2191 | { |
1849 | ev_io *w; |
2192 | ev_io *w; |
1850 | |
2193 | |
1851 | while ((w = (ev_io *)anfds [fd].head)) |
2194 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1854 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2197 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1855 | } |
2198 | } |
1856 | } |
2199 | } |
1857 | |
2200 | |
1858 | /* check whether the given fd is actually valid, for error recovery */ |
2201 | /* check whether the given fd is actually valid, for error recovery */ |
1859 | inline_size int ecb_cold |
2202 | inline_size ecb_cold int |
1860 | fd_valid (int fd) |
2203 | fd_valid (int fd) |
1861 | { |
2204 | { |
1862 | #ifdef _WIN32 |
2205 | #ifdef _WIN32 |
1863 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2206 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1864 | #else |
2207 | #else |
1865 | return fcntl (fd, F_GETFD) != -1; |
2208 | return fcntl (fd, F_GETFD) != -1; |
1866 | #endif |
2209 | #endif |
1867 | } |
2210 | } |
1868 | |
2211 | |
1869 | /* called on EBADF to verify fds */ |
2212 | /* called on EBADF to verify fds */ |
1870 | static void noinline ecb_cold |
2213 | noinline ecb_cold |
|
|
2214 | static void |
1871 | fd_ebadf (EV_P) |
2215 | fd_ebadf (EV_P) |
1872 | { |
2216 | { |
1873 | int fd; |
2217 | int fd; |
1874 | |
2218 | |
1875 | for (fd = 0; fd < anfdmax; ++fd) |
2219 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1877 | if (!fd_valid (fd) && errno == EBADF) |
2221 | if (!fd_valid (fd) && errno == EBADF) |
1878 | fd_kill (EV_A_ fd); |
2222 | fd_kill (EV_A_ fd); |
1879 | } |
2223 | } |
1880 | |
2224 | |
1881 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2225 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1882 | static void noinline ecb_cold |
2226 | noinline ecb_cold |
|
|
2227 | static void |
1883 | fd_enomem (EV_P) |
2228 | fd_enomem (EV_P) |
1884 | { |
2229 | { |
1885 | int fd; |
2230 | int fd; |
1886 | |
2231 | |
1887 | for (fd = anfdmax; fd--; ) |
2232 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1891 | break; |
2236 | break; |
1892 | } |
2237 | } |
1893 | } |
2238 | } |
1894 | |
2239 | |
1895 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2240 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1896 | static void noinline |
2241 | noinline |
|
|
2242 | static void |
1897 | fd_rearm_all (EV_P) |
2243 | fd_rearm_all (EV_P) |
1898 | { |
2244 | { |
1899 | int fd; |
2245 | int fd; |
1900 | |
2246 | |
1901 | for (fd = 0; fd < anfdmax; ++fd) |
2247 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2082 | |
2428 | |
2083 | /*****************************************************************************/ |
2429 | /*****************************************************************************/ |
2084 | |
2430 | |
2085 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2431 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2086 | |
2432 | |
2087 | static void noinline ecb_cold |
2433 | noinline ecb_cold |
|
|
2434 | static void |
2088 | evpipe_init (EV_P) |
2435 | evpipe_init (EV_P) |
2089 | { |
2436 | { |
2090 | if (!ev_is_active (&pipe_w)) |
2437 | if (!ev_is_active (&pipe_w)) |
2091 | { |
2438 | { |
2092 | int fds [2]; |
2439 | int fds [2]; |
… | |
… | |
2103 | while (pipe (fds)) |
2450 | while (pipe (fds)) |
2104 | ev_syserr ("(libev) error creating signal/async pipe"); |
2451 | ev_syserr ("(libev) error creating signal/async pipe"); |
2105 | |
2452 | |
2106 | fd_intern (fds [0]); |
2453 | fd_intern (fds [0]); |
2107 | } |
2454 | } |
2108 | |
|
|
2109 | fd_intern (fds [1]); |
|
|
2110 | |
2455 | |
2111 | evpipe [0] = fds [0]; |
2456 | evpipe [0] = fds [0]; |
2112 | |
2457 | |
2113 | if (evpipe [1] < 0) |
2458 | if (evpipe [1] < 0) |
2114 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2459 | evpipe [1] = fds [1]; /* first call, set write fd */ |
… | |
… | |
2121 | |
2466 | |
2122 | dup2 (fds [1], evpipe [1]); |
2467 | dup2 (fds [1], evpipe [1]); |
2123 | close (fds [1]); |
2468 | close (fds [1]); |
2124 | } |
2469 | } |
2125 | |
2470 | |
|
|
2471 | fd_intern (evpipe [1]); |
|
|
2472 | |
2126 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2473 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2127 | ev_io_start (EV_A_ &pipe_w); |
2474 | ev_io_start (EV_A_ &pipe_w); |
2128 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2475 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2129 | } |
2476 | } |
2130 | } |
2477 | } |
… | |
… | |
2163 | #endif |
2510 | #endif |
2164 | { |
2511 | { |
2165 | #ifdef _WIN32 |
2512 | #ifdef _WIN32 |
2166 | WSABUF buf; |
2513 | WSABUF buf; |
2167 | DWORD sent; |
2514 | DWORD sent; |
2168 | buf.buf = &buf; |
2515 | buf.buf = (char *)&buf; |
2169 | buf.len = 1; |
2516 | buf.len = 1; |
2170 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2517 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2171 | #else |
2518 | #else |
2172 | write (evpipe [1], &(evpipe [1]), 1); |
2519 | write (evpipe [1], &(evpipe [1]), 1); |
2173 | #endif |
2520 | #endif |
… | |
… | |
2245 | } |
2592 | } |
2246 | |
2593 | |
2247 | /*****************************************************************************/ |
2594 | /*****************************************************************************/ |
2248 | |
2595 | |
2249 | void |
2596 | void |
2250 | ev_feed_signal (int signum) EV_THROW |
2597 | ev_feed_signal (int signum) EV_NOEXCEPT |
2251 | { |
2598 | { |
2252 | #if EV_MULTIPLICITY |
2599 | #if EV_MULTIPLICITY |
2253 | EV_P; |
2600 | EV_P; |
2254 | ECB_MEMORY_FENCE_ACQUIRE; |
2601 | ECB_MEMORY_FENCE_ACQUIRE; |
2255 | EV_A = signals [signum - 1].loop; |
2602 | EV_A = signals [signum - 1].loop; |
… | |
… | |
2270 | #endif |
2617 | #endif |
2271 | |
2618 | |
2272 | ev_feed_signal (signum); |
2619 | ev_feed_signal (signum); |
2273 | } |
2620 | } |
2274 | |
2621 | |
2275 | void noinline |
2622 | noinline |
|
|
2623 | void |
2276 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2624 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
2277 | { |
2625 | { |
2278 | WL w; |
2626 | WL w; |
2279 | |
2627 | |
2280 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2628 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2281 | return; |
2629 | return; |
… | |
… | |
2390 | # include "ev_kqueue.c" |
2738 | # include "ev_kqueue.c" |
2391 | #endif |
2739 | #endif |
2392 | #if EV_USE_EPOLL |
2740 | #if EV_USE_EPOLL |
2393 | # include "ev_epoll.c" |
2741 | # include "ev_epoll.c" |
2394 | #endif |
2742 | #endif |
|
|
2743 | #if EV_USE_LINUXAIO |
|
|
2744 | # include "ev_linuxaio.c" |
|
|
2745 | #endif |
2395 | #if EV_USE_POLL |
2746 | #if EV_USE_POLL |
2396 | # include "ev_poll.c" |
2747 | # include "ev_poll.c" |
2397 | #endif |
2748 | #endif |
2398 | #if EV_USE_SELECT |
2749 | #if EV_USE_SELECT |
2399 | # include "ev_select.c" |
2750 | # include "ev_select.c" |
2400 | #endif |
2751 | #endif |
2401 | |
2752 | |
2402 | int ecb_cold |
2753 | ecb_cold int |
2403 | ev_version_major (void) EV_THROW |
2754 | ev_version_major (void) EV_NOEXCEPT |
2404 | { |
2755 | { |
2405 | return EV_VERSION_MAJOR; |
2756 | return EV_VERSION_MAJOR; |
2406 | } |
2757 | } |
2407 | |
2758 | |
2408 | int ecb_cold |
2759 | ecb_cold int |
2409 | ev_version_minor (void) EV_THROW |
2760 | ev_version_minor (void) EV_NOEXCEPT |
2410 | { |
2761 | { |
2411 | return EV_VERSION_MINOR; |
2762 | return EV_VERSION_MINOR; |
2412 | } |
2763 | } |
2413 | |
2764 | |
2414 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2765 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2415 | int inline_size ecb_cold |
2766 | inline_size ecb_cold int |
2416 | enable_secure (void) |
2767 | enable_secure (void) |
2417 | { |
2768 | { |
2418 | #ifdef _WIN32 |
2769 | #ifdef _WIN32 |
2419 | return 0; |
2770 | return 0; |
2420 | #else |
2771 | #else |
2421 | return getuid () != geteuid () |
2772 | return getuid () != geteuid () |
2422 | || getgid () != getegid (); |
2773 | || getgid () != getegid (); |
2423 | #endif |
2774 | #endif |
2424 | } |
2775 | } |
2425 | |
2776 | |
2426 | unsigned int ecb_cold |
2777 | ecb_cold |
|
|
2778 | unsigned int |
2427 | ev_supported_backends (void) EV_THROW |
2779 | ev_supported_backends (void) EV_NOEXCEPT |
2428 | { |
2780 | { |
2429 | unsigned int flags = 0; |
2781 | unsigned int flags = 0; |
2430 | |
2782 | |
2431 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2783 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2432 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2784 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
2433 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2785 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2786 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
2434 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2787 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2435 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2788 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
2436 | |
2789 | |
2437 | return flags; |
2790 | return flags; |
2438 | } |
2791 | } |
2439 | |
2792 | |
2440 | unsigned int ecb_cold |
2793 | ecb_cold |
|
|
2794 | unsigned int |
2441 | ev_recommended_backends (void) EV_THROW |
2795 | ev_recommended_backends (void) EV_NOEXCEPT |
2442 | { |
2796 | { |
2443 | unsigned int flags = ev_supported_backends (); |
2797 | unsigned int flags = ev_supported_backends (); |
2444 | |
2798 | |
2445 | #ifndef __NetBSD__ |
2799 | #ifndef __NetBSD__ |
2446 | /* kqueue is borked on everything but netbsd apparently */ |
2800 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2454 | #endif |
2808 | #endif |
2455 | #ifdef __FreeBSD__ |
2809 | #ifdef __FreeBSD__ |
2456 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2810 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
2457 | #endif |
2811 | #endif |
2458 | |
2812 | |
|
|
2813 | /* TODO: linuxaio is very experimental */ |
|
|
2814 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2815 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2816 | #endif |
|
|
2817 | |
2459 | return flags; |
2818 | return flags; |
2460 | } |
2819 | } |
2461 | |
2820 | |
2462 | unsigned int ecb_cold |
2821 | ecb_cold |
|
|
2822 | unsigned int |
2463 | ev_embeddable_backends (void) EV_THROW |
2823 | ev_embeddable_backends (void) EV_NOEXCEPT |
2464 | { |
2824 | { |
2465 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2825 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2466 | |
2826 | |
2467 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2827 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2468 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2828 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2470 | |
2830 | |
2471 | return flags; |
2831 | return flags; |
2472 | } |
2832 | } |
2473 | |
2833 | |
2474 | unsigned int |
2834 | unsigned int |
2475 | ev_backend (EV_P) EV_THROW |
2835 | ev_backend (EV_P) EV_NOEXCEPT |
2476 | { |
2836 | { |
2477 | return backend; |
2837 | return backend; |
2478 | } |
2838 | } |
2479 | |
2839 | |
2480 | #if EV_FEATURE_API |
2840 | #if EV_FEATURE_API |
2481 | unsigned int |
2841 | unsigned int |
2482 | ev_iteration (EV_P) EV_THROW |
2842 | ev_iteration (EV_P) EV_NOEXCEPT |
2483 | { |
2843 | { |
2484 | return loop_count; |
2844 | return loop_count; |
2485 | } |
2845 | } |
2486 | |
2846 | |
2487 | unsigned int |
2847 | unsigned int |
2488 | ev_depth (EV_P) EV_THROW |
2848 | ev_depth (EV_P) EV_NOEXCEPT |
2489 | { |
2849 | { |
2490 | return loop_depth; |
2850 | return loop_depth; |
2491 | } |
2851 | } |
2492 | |
2852 | |
2493 | void |
2853 | void |
2494 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2854 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2495 | { |
2855 | { |
2496 | io_blocktime = interval; |
2856 | io_blocktime = interval; |
2497 | } |
2857 | } |
2498 | |
2858 | |
2499 | void |
2859 | void |
2500 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2860 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2501 | { |
2861 | { |
2502 | timeout_blocktime = interval; |
2862 | timeout_blocktime = interval; |
2503 | } |
2863 | } |
2504 | |
2864 | |
2505 | void |
2865 | void |
2506 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2866 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2507 | { |
2867 | { |
2508 | userdata = data; |
2868 | userdata = data; |
2509 | } |
2869 | } |
2510 | |
2870 | |
2511 | void * |
2871 | void * |
2512 | ev_userdata (EV_P) EV_THROW |
2872 | ev_userdata (EV_P) EV_NOEXCEPT |
2513 | { |
2873 | { |
2514 | return userdata; |
2874 | return userdata; |
2515 | } |
2875 | } |
2516 | |
2876 | |
2517 | void |
2877 | void |
2518 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2878 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2519 | { |
2879 | { |
2520 | invoke_cb = invoke_pending_cb; |
2880 | invoke_cb = invoke_pending_cb; |
2521 | } |
2881 | } |
2522 | |
2882 | |
2523 | void |
2883 | void |
2524 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2884 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2525 | { |
2885 | { |
2526 | release_cb = release; |
2886 | release_cb = release; |
2527 | acquire_cb = acquire; |
2887 | acquire_cb = acquire; |
2528 | } |
2888 | } |
2529 | #endif |
2889 | #endif |
2530 | |
2890 | |
2531 | /* initialise a loop structure, must be zero-initialised */ |
2891 | /* initialise a loop structure, must be zero-initialised */ |
2532 | static void noinline ecb_cold |
2892 | noinline ecb_cold |
|
|
2893 | static void |
2533 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2894 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2534 | { |
2895 | { |
2535 | if (!backend) |
2896 | if (!backend) |
2536 | { |
2897 | { |
2537 | origflags = flags; |
2898 | origflags = flags; |
2538 | |
2899 | |
… | |
… | |
2596 | |
2957 | |
2597 | if (!(flags & EVBACKEND_MASK)) |
2958 | if (!(flags & EVBACKEND_MASK)) |
2598 | flags |= ev_recommended_backends (); |
2959 | flags |= ev_recommended_backends (); |
2599 | |
2960 | |
2600 | #if EV_USE_IOCP |
2961 | #if EV_USE_IOCP |
2601 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2962 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
2602 | #endif |
2963 | #endif |
2603 | #if EV_USE_PORT |
2964 | #if EV_USE_PORT |
2604 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2965 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2605 | #endif |
2966 | #endif |
2606 | #if EV_USE_KQUEUE |
2967 | #if EV_USE_KQUEUE |
2607 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2968 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
2969 | #endif |
|
|
2970 | #if EV_USE_LINUXAIO |
|
|
2971 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
2608 | #endif |
2972 | #endif |
2609 | #if EV_USE_EPOLL |
2973 | #if EV_USE_EPOLL |
2610 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2974 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
2611 | #endif |
2975 | #endif |
2612 | #if EV_USE_POLL |
2976 | #if EV_USE_POLL |
2613 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2977 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
2614 | #endif |
2978 | #endif |
2615 | #if EV_USE_SELECT |
2979 | #if EV_USE_SELECT |
2616 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2980 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
2617 | #endif |
2981 | #endif |
2618 | |
2982 | |
2619 | ev_prepare_init (&pending_w, pendingcb); |
2983 | ev_prepare_init (&pending_w, pendingcb); |
2620 | |
2984 | |
2621 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2985 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
… | |
… | |
2624 | #endif |
2988 | #endif |
2625 | } |
2989 | } |
2626 | } |
2990 | } |
2627 | |
2991 | |
2628 | /* free up a loop structure */ |
2992 | /* free up a loop structure */ |
2629 | void ecb_cold |
2993 | ecb_cold |
|
|
2994 | void |
2630 | ev_loop_destroy (EV_P) |
2995 | ev_loop_destroy (EV_P) |
2631 | { |
2996 | { |
2632 | int i; |
2997 | int i; |
2633 | |
2998 | |
2634 | #if EV_MULTIPLICITY |
2999 | #if EV_MULTIPLICITY |
… | |
… | |
2675 | |
3040 | |
2676 | if (backend_fd >= 0) |
3041 | if (backend_fd >= 0) |
2677 | close (backend_fd); |
3042 | close (backend_fd); |
2678 | |
3043 | |
2679 | #if EV_USE_IOCP |
3044 | #if EV_USE_IOCP |
2680 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
3045 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
2681 | #endif |
3046 | #endif |
2682 | #if EV_USE_PORT |
3047 | #if EV_USE_PORT |
2683 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3048 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2684 | #endif |
3049 | #endif |
2685 | #if EV_USE_KQUEUE |
3050 | #if EV_USE_KQUEUE |
2686 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3051 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3052 | #endif |
|
|
3053 | #if EV_USE_LINUXAIO |
|
|
3054 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
2687 | #endif |
3055 | #endif |
2688 | #if EV_USE_EPOLL |
3056 | #if EV_USE_EPOLL |
2689 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3057 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
2690 | #endif |
3058 | #endif |
2691 | #if EV_USE_POLL |
3059 | #if EV_USE_POLL |
2692 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3060 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
2693 | #endif |
3061 | #endif |
2694 | #if EV_USE_SELECT |
3062 | #if EV_USE_SELECT |
2695 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3063 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
2696 | #endif |
3064 | #endif |
2697 | |
3065 | |
2698 | for (i = NUMPRI; i--; ) |
3066 | for (i = NUMPRI; i--; ) |
2699 | { |
3067 | { |
2700 | array_free (pending, [i]); |
3068 | array_free (pending, [i]); |
… | |
… | |
2742 | |
3110 | |
2743 | inline_size void |
3111 | inline_size void |
2744 | loop_fork (EV_P) |
3112 | loop_fork (EV_P) |
2745 | { |
3113 | { |
2746 | #if EV_USE_PORT |
3114 | #if EV_USE_PORT |
2747 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3115 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2748 | #endif |
3116 | #endif |
2749 | #if EV_USE_KQUEUE |
3117 | #if EV_USE_KQUEUE |
2750 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3118 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3119 | #endif |
|
|
3120 | #if EV_USE_LINUXAIO |
|
|
3121 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
2751 | #endif |
3122 | #endif |
2752 | #if EV_USE_EPOLL |
3123 | #if EV_USE_EPOLL |
2753 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3124 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2754 | #endif |
3125 | #endif |
2755 | #if EV_USE_INOTIFY |
3126 | #if EV_USE_INOTIFY |
2756 | infy_fork (EV_A); |
3127 | infy_fork (EV_A); |
2757 | #endif |
3128 | #endif |
2758 | |
3129 | |
2759 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3130 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2760 | if (ev_is_active (&pipe_w)) |
3131 | if (ev_is_active (&pipe_w) && postfork != 2) |
2761 | { |
3132 | { |
2762 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3133 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2763 | |
3134 | |
2764 | ev_ref (EV_A); |
3135 | ev_ref (EV_A); |
2765 | ev_io_stop (EV_A_ &pipe_w); |
3136 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2776 | postfork = 0; |
3147 | postfork = 0; |
2777 | } |
3148 | } |
2778 | |
3149 | |
2779 | #if EV_MULTIPLICITY |
3150 | #if EV_MULTIPLICITY |
2780 | |
3151 | |
|
|
3152 | ecb_cold |
2781 | struct ev_loop * ecb_cold |
3153 | struct ev_loop * |
2782 | ev_loop_new (unsigned int flags) EV_THROW |
3154 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2783 | { |
3155 | { |
2784 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3156 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2785 | |
3157 | |
2786 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3158 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2787 | loop_init (EV_A_ flags); |
3159 | loop_init (EV_A_ flags); |
… | |
… | |
2794 | } |
3166 | } |
2795 | |
3167 | |
2796 | #endif /* multiplicity */ |
3168 | #endif /* multiplicity */ |
2797 | |
3169 | |
2798 | #if EV_VERIFY |
3170 | #if EV_VERIFY |
2799 | static void noinline ecb_cold |
3171 | noinline ecb_cold |
|
|
3172 | static void |
2800 | verify_watcher (EV_P_ W w) |
3173 | verify_watcher (EV_P_ W w) |
2801 | { |
3174 | { |
2802 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3175 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2803 | |
3176 | |
2804 | if (w->pending) |
3177 | if (w->pending) |
2805 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3178 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2806 | } |
3179 | } |
2807 | |
3180 | |
2808 | static void noinline ecb_cold |
3181 | noinline ecb_cold |
|
|
3182 | static void |
2809 | verify_heap (EV_P_ ANHE *heap, int N) |
3183 | verify_heap (EV_P_ ANHE *heap, int N) |
2810 | { |
3184 | { |
2811 | int i; |
3185 | int i; |
2812 | |
3186 | |
2813 | for (i = HEAP0; i < N + HEAP0; ++i) |
3187 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2818 | |
3192 | |
2819 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3193 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2820 | } |
3194 | } |
2821 | } |
3195 | } |
2822 | |
3196 | |
2823 | static void noinline ecb_cold |
3197 | noinline ecb_cold |
|
|
3198 | static void |
2824 | array_verify (EV_P_ W *ws, int cnt) |
3199 | array_verify (EV_P_ W *ws, int cnt) |
2825 | { |
3200 | { |
2826 | while (cnt--) |
3201 | while (cnt--) |
2827 | { |
3202 | { |
2828 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3203 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2831 | } |
3206 | } |
2832 | #endif |
3207 | #endif |
2833 | |
3208 | |
2834 | #if EV_FEATURE_API |
3209 | #if EV_FEATURE_API |
2835 | void ecb_cold |
3210 | void ecb_cold |
2836 | ev_verify (EV_P) EV_THROW |
3211 | ev_verify (EV_P) EV_NOEXCEPT |
2837 | { |
3212 | { |
2838 | #if EV_VERIFY |
3213 | #if EV_VERIFY |
2839 | int i; |
3214 | int i; |
2840 | WL w, w2; |
3215 | WL w, w2; |
2841 | |
3216 | |
… | |
… | |
2917 | #endif |
3292 | #endif |
2918 | } |
3293 | } |
2919 | #endif |
3294 | #endif |
2920 | |
3295 | |
2921 | #if EV_MULTIPLICITY |
3296 | #if EV_MULTIPLICITY |
|
|
3297 | ecb_cold |
2922 | struct ev_loop * ecb_cold |
3298 | struct ev_loop * |
2923 | #else |
3299 | #else |
2924 | int |
3300 | int |
2925 | #endif |
3301 | #endif |
2926 | ev_default_loop (unsigned int flags) EV_THROW |
3302 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2927 | { |
3303 | { |
2928 | if (!ev_default_loop_ptr) |
3304 | if (!ev_default_loop_ptr) |
2929 | { |
3305 | { |
2930 | #if EV_MULTIPLICITY |
3306 | #if EV_MULTIPLICITY |
2931 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3307 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2950 | |
3326 | |
2951 | return ev_default_loop_ptr; |
3327 | return ev_default_loop_ptr; |
2952 | } |
3328 | } |
2953 | |
3329 | |
2954 | void |
3330 | void |
2955 | ev_loop_fork (EV_P) EV_THROW |
3331 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2956 | { |
3332 | { |
2957 | postfork = 1; |
3333 | postfork = 1; |
2958 | } |
3334 | } |
2959 | |
3335 | |
2960 | /*****************************************************************************/ |
3336 | /*****************************************************************************/ |
… | |
… | |
2964 | { |
3340 | { |
2965 | EV_CB_INVOKE ((W)w, revents); |
3341 | EV_CB_INVOKE ((W)w, revents); |
2966 | } |
3342 | } |
2967 | |
3343 | |
2968 | unsigned int |
3344 | unsigned int |
2969 | ev_pending_count (EV_P) EV_THROW |
3345 | ev_pending_count (EV_P) EV_NOEXCEPT |
2970 | { |
3346 | { |
2971 | int pri; |
3347 | int pri; |
2972 | unsigned int count = 0; |
3348 | unsigned int count = 0; |
2973 | |
3349 | |
2974 | for (pri = NUMPRI; pri--; ) |
3350 | for (pri = NUMPRI; pri--; ) |
2975 | count += pendingcnt [pri]; |
3351 | count += pendingcnt [pri]; |
2976 | |
3352 | |
2977 | return count; |
3353 | return count; |
2978 | } |
3354 | } |
2979 | |
3355 | |
2980 | void noinline |
3356 | noinline |
|
|
3357 | void |
2981 | ev_invoke_pending (EV_P) |
3358 | ev_invoke_pending (EV_P) |
2982 | { |
3359 | { |
2983 | pendingpri = NUMPRI; |
3360 | pendingpri = NUMPRI; |
2984 | |
3361 | |
2985 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3362 | do |
2986 | { |
3363 | { |
2987 | --pendingpri; |
3364 | --pendingpri; |
2988 | |
3365 | |
|
|
3366 | /* pendingpri possibly gets modified in the inner loop */ |
2989 | while (pendingcnt [pendingpri]) |
3367 | while (pendingcnt [pendingpri]) |
2990 | { |
3368 | { |
2991 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3369 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2992 | |
3370 | |
2993 | p->w->pending = 0; |
3371 | p->w->pending = 0; |
2994 | EV_CB_INVOKE (p->w, p->events); |
3372 | EV_CB_INVOKE (p->w, p->events); |
2995 | EV_FREQUENT_CHECK; |
3373 | EV_FREQUENT_CHECK; |
2996 | } |
3374 | } |
2997 | } |
3375 | } |
|
|
3376 | while (pendingpri); |
2998 | } |
3377 | } |
2999 | |
3378 | |
3000 | #if EV_IDLE_ENABLE |
3379 | #if EV_IDLE_ENABLE |
3001 | /* make idle watchers pending. this handles the "call-idle */ |
3380 | /* make idle watchers pending. this handles the "call-idle */ |
3002 | /* only when higher priorities are idle" logic */ |
3381 | /* only when higher priorities are idle" logic */ |
… | |
… | |
3060 | } |
3439 | } |
3061 | } |
3440 | } |
3062 | |
3441 | |
3063 | #if EV_PERIODIC_ENABLE |
3442 | #if EV_PERIODIC_ENABLE |
3064 | |
3443 | |
3065 | static void noinline |
3444 | noinline |
|
|
3445 | static void |
3066 | periodic_recalc (EV_P_ ev_periodic *w) |
3446 | periodic_recalc (EV_P_ ev_periodic *w) |
3067 | { |
3447 | { |
3068 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3448 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3069 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3449 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3070 | |
3450 | |
… | |
… | |
3128 | } |
3508 | } |
3129 | } |
3509 | } |
3130 | |
3510 | |
3131 | /* simply recalculate all periodics */ |
3511 | /* simply recalculate all periodics */ |
3132 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3512 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3133 | static void noinline ecb_cold |
3513 | noinline ecb_cold |
|
|
3514 | static void |
3134 | periodics_reschedule (EV_P) |
3515 | periodics_reschedule (EV_P) |
3135 | { |
3516 | { |
3136 | int i; |
3517 | int i; |
3137 | |
3518 | |
3138 | /* adjust periodics after time jump */ |
3519 | /* adjust periodics after time jump */ |
… | |
… | |
3151 | reheap (periodics, periodiccnt); |
3532 | reheap (periodics, periodiccnt); |
3152 | } |
3533 | } |
3153 | #endif |
3534 | #endif |
3154 | |
3535 | |
3155 | /* adjust all timers by a given offset */ |
3536 | /* adjust all timers by a given offset */ |
3156 | static void noinline ecb_cold |
3537 | noinline ecb_cold |
|
|
3538 | static void |
3157 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3539 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3158 | { |
3540 | { |
3159 | int i; |
3541 | int i; |
3160 | |
3542 | |
3161 | for (i = 0; i < timercnt; ++i) |
3543 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3408 | |
3790 | |
3409 | return activecnt; |
3791 | return activecnt; |
3410 | } |
3792 | } |
3411 | |
3793 | |
3412 | void |
3794 | void |
3413 | ev_break (EV_P_ int how) EV_THROW |
3795 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3414 | { |
3796 | { |
3415 | loop_done = how; |
3797 | loop_done = how; |
3416 | } |
3798 | } |
3417 | |
3799 | |
3418 | void |
3800 | void |
3419 | ev_ref (EV_P) EV_THROW |
3801 | ev_ref (EV_P) EV_NOEXCEPT |
3420 | { |
3802 | { |
3421 | ++activecnt; |
3803 | ++activecnt; |
3422 | } |
3804 | } |
3423 | |
3805 | |
3424 | void |
3806 | void |
3425 | ev_unref (EV_P) EV_THROW |
3807 | ev_unref (EV_P) EV_NOEXCEPT |
3426 | { |
3808 | { |
3427 | --activecnt; |
3809 | --activecnt; |
3428 | } |
3810 | } |
3429 | |
3811 | |
3430 | void |
3812 | void |
3431 | ev_now_update (EV_P) EV_THROW |
3813 | ev_now_update (EV_P) EV_NOEXCEPT |
3432 | { |
3814 | { |
3433 | time_update (EV_A_ 1e100); |
3815 | time_update (EV_A_ 1e100); |
3434 | } |
3816 | } |
3435 | |
3817 | |
3436 | void |
3818 | void |
3437 | ev_suspend (EV_P) EV_THROW |
3819 | ev_suspend (EV_P) EV_NOEXCEPT |
3438 | { |
3820 | { |
3439 | ev_now_update (EV_A); |
3821 | ev_now_update (EV_A); |
3440 | } |
3822 | } |
3441 | |
3823 | |
3442 | void |
3824 | void |
3443 | ev_resume (EV_P) EV_THROW |
3825 | ev_resume (EV_P) EV_NOEXCEPT |
3444 | { |
3826 | { |
3445 | ev_tstamp mn_prev = mn_now; |
3827 | ev_tstamp mn_prev = mn_now; |
3446 | |
3828 | |
3447 | ev_now_update (EV_A); |
3829 | ev_now_update (EV_A); |
3448 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3830 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3487 | w->pending = 0; |
3869 | w->pending = 0; |
3488 | } |
3870 | } |
3489 | } |
3871 | } |
3490 | |
3872 | |
3491 | int |
3873 | int |
3492 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3874 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3493 | { |
3875 | { |
3494 | W w_ = (W)w; |
3876 | W w_ = (W)w; |
3495 | int pending = w_->pending; |
3877 | int pending = w_->pending; |
3496 | |
3878 | |
3497 | if (expect_true (pending)) |
3879 | if (expect_true (pending)) |
… | |
… | |
3529 | w->active = 0; |
3911 | w->active = 0; |
3530 | } |
3912 | } |
3531 | |
3913 | |
3532 | /*****************************************************************************/ |
3914 | /*****************************************************************************/ |
3533 | |
3915 | |
3534 | void noinline |
3916 | noinline |
|
|
3917 | void |
3535 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3918 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3536 | { |
3919 | { |
3537 | int fd = w->fd; |
3920 | int fd = w->fd; |
3538 | |
3921 | |
3539 | if (expect_false (ev_is_active (w))) |
3922 | if (expect_false (ev_is_active (w))) |
3540 | return; |
3923 | return; |
… | |
… | |
3543 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3926 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
3544 | |
3927 | |
3545 | EV_FREQUENT_CHECK; |
3928 | EV_FREQUENT_CHECK; |
3546 | |
3929 | |
3547 | ev_start (EV_A_ (W)w, 1); |
3930 | ev_start (EV_A_ (W)w, 1); |
3548 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3931 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
3549 | wlist_add (&anfds[fd].head, (WL)w); |
3932 | wlist_add (&anfds[fd].head, (WL)w); |
3550 | |
3933 | |
3551 | /* common bug, apparently */ |
3934 | /* common bug, apparently */ |
3552 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3935 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
3553 | |
3936 | |
… | |
… | |
3555 | w->events &= ~EV__IOFDSET; |
3938 | w->events &= ~EV__IOFDSET; |
3556 | |
3939 | |
3557 | EV_FREQUENT_CHECK; |
3940 | EV_FREQUENT_CHECK; |
3558 | } |
3941 | } |
3559 | |
3942 | |
3560 | void noinline |
3943 | noinline |
|
|
3944 | void |
3561 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3945 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3562 | { |
3946 | { |
3563 | clear_pending (EV_A_ (W)w); |
3947 | clear_pending (EV_A_ (W)w); |
3564 | if (expect_false (!ev_is_active (w))) |
3948 | if (expect_false (!ev_is_active (w))) |
3565 | return; |
3949 | return; |
3566 | |
3950 | |
… | |
… | |
3574 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3958 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3575 | |
3959 | |
3576 | EV_FREQUENT_CHECK; |
3960 | EV_FREQUENT_CHECK; |
3577 | } |
3961 | } |
3578 | |
3962 | |
3579 | void noinline |
3963 | noinline |
|
|
3964 | void |
3580 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3965 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3581 | { |
3966 | { |
3582 | if (expect_false (ev_is_active (w))) |
3967 | if (expect_false (ev_is_active (w))) |
3583 | return; |
3968 | return; |
3584 | |
3969 | |
3585 | ev_at (w) += mn_now; |
3970 | ev_at (w) += mn_now; |
… | |
… | |
3588 | |
3973 | |
3589 | EV_FREQUENT_CHECK; |
3974 | EV_FREQUENT_CHECK; |
3590 | |
3975 | |
3591 | ++timercnt; |
3976 | ++timercnt; |
3592 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3977 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
3593 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
3978 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
3594 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3979 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
3595 | ANHE_at_cache (timers [ev_active (w)]); |
3980 | ANHE_at_cache (timers [ev_active (w)]); |
3596 | upheap (timers, ev_active (w)); |
3981 | upheap (timers, ev_active (w)); |
3597 | |
3982 | |
3598 | EV_FREQUENT_CHECK; |
3983 | EV_FREQUENT_CHECK; |
3599 | |
3984 | |
3600 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3985 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3601 | } |
3986 | } |
3602 | |
3987 | |
3603 | void noinline |
3988 | noinline |
|
|
3989 | void |
3604 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3990 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3605 | { |
3991 | { |
3606 | clear_pending (EV_A_ (W)w); |
3992 | clear_pending (EV_A_ (W)w); |
3607 | if (expect_false (!ev_is_active (w))) |
3993 | if (expect_false (!ev_is_active (w))) |
3608 | return; |
3994 | return; |
3609 | |
3995 | |
… | |
… | |
3628 | ev_stop (EV_A_ (W)w); |
4014 | ev_stop (EV_A_ (W)w); |
3629 | |
4015 | |
3630 | EV_FREQUENT_CHECK; |
4016 | EV_FREQUENT_CHECK; |
3631 | } |
4017 | } |
3632 | |
4018 | |
3633 | void noinline |
4019 | noinline |
|
|
4020 | void |
3634 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
4021 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3635 | { |
4022 | { |
3636 | EV_FREQUENT_CHECK; |
4023 | EV_FREQUENT_CHECK; |
3637 | |
4024 | |
3638 | clear_pending (EV_A_ (W)w); |
4025 | clear_pending (EV_A_ (W)w); |
3639 | |
4026 | |
… | |
… | |
3656 | |
4043 | |
3657 | EV_FREQUENT_CHECK; |
4044 | EV_FREQUENT_CHECK; |
3658 | } |
4045 | } |
3659 | |
4046 | |
3660 | ev_tstamp |
4047 | ev_tstamp |
3661 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
4048 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3662 | { |
4049 | { |
3663 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4050 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3664 | } |
4051 | } |
3665 | |
4052 | |
3666 | #if EV_PERIODIC_ENABLE |
4053 | #if EV_PERIODIC_ENABLE |
3667 | void noinline |
4054 | noinline |
|
|
4055 | void |
3668 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4056 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3669 | { |
4057 | { |
3670 | if (expect_false (ev_is_active (w))) |
4058 | if (expect_false (ev_is_active (w))) |
3671 | return; |
4059 | return; |
3672 | |
4060 | |
3673 | if (w->reschedule_cb) |
4061 | if (w->reschedule_cb) |
… | |
… | |
3682 | |
4070 | |
3683 | EV_FREQUENT_CHECK; |
4071 | EV_FREQUENT_CHECK; |
3684 | |
4072 | |
3685 | ++periodiccnt; |
4073 | ++periodiccnt; |
3686 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4074 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
3687 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4075 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
3688 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4076 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
3689 | ANHE_at_cache (periodics [ev_active (w)]); |
4077 | ANHE_at_cache (periodics [ev_active (w)]); |
3690 | upheap (periodics, ev_active (w)); |
4078 | upheap (periodics, ev_active (w)); |
3691 | |
4079 | |
3692 | EV_FREQUENT_CHECK; |
4080 | EV_FREQUENT_CHECK; |
3693 | |
4081 | |
3694 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4082 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3695 | } |
4083 | } |
3696 | |
4084 | |
3697 | void noinline |
4085 | noinline |
|
|
4086 | void |
3698 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4087 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3699 | { |
4088 | { |
3700 | clear_pending (EV_A_ (W)w); |
4089 | clear_pending (EV_A_ (W)w); |
3701 | if (expect_false (!ev_is_active (w))) |
4090 | if (expect_false (!ev_is_active (w))) |
3702 | return; |
4091 | return; |
3703 | |
4092 | |
… | |
… | |
3720 | ev_stop (EV_A_ (W)w); |
4109 | ev_stop (EV_A_ (W)w); |
3721 | |
4110 | |
3722 | EV_FREQUENT_CHECK; |
4111 | EV_FREQUENT_CHECK; |
3723 | } |
4112 | } |
3724 | |
4113 | |
3725 | void noinline |
4114 | noinline |
|
|
4115 | void |
3726 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4116 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3727 | { |
4117 | { |
3728 | /* TODO: use adjustheap and recalculation */ |
4118 | /* TODO: use adjustheap and recalculation */ |
3729 | ev_periodic_stop (EV_A_ w); |
4119 | ev_periodic_stop (EV_A_ w); |
3730 | ev_periodic_start (EV_A_ w); |
4120 | ev_periodic_start (EV_A_ w); |
3731 | } |
4121 | } |
… | |
… | |
3735 | # define SA_RESTART 0 |
4125 | # define SA_RESTART 0 |
3736 | #endif |
4126 | #endif |
3737 | |
4127 | |
3738 | #if EV_SIGNAL_ENABLE |
4128 | #if EV_SIGNAL_ENABLE |
3739 | |
4129 | |
3740 | void noinline |
4130 | noinline |
|
|
4131 | void |
3741 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4132 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3742 | { |
4133 | { |
3743 | if (expect_false (ev_is_active (w))) |
4134 | if (expect_false (ev_is_active (w))) |
3744 | return; |
4135 | return; |
3745 | |
4136 | |
3746 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4137 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3817 | } |
4208 | } |
3818 | |
4209 | |
3819 | EV_FREQUENT_CHECK; |
4210 | EV_FREQUENT_CHECK; |
3820 | } |
4211 | } |
3821 | |
4212 | |
3822 | void noinline |
4213 | noinline |
|
|
4214 | void |
3823 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4215 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3824 | { |
4216 | { |
3825 | clear_pending (EV_A_ (W)w); |
4217 | clear_pending (EV_A_ (W)w); |
3826 | if (expect_false (!ev_is_active (w))) |
4218 | if (expect_false (!ev_is_active (w))) |
3827 | return; |
4219 | return; |
3828 | |
4220 | |
… | |
… | |
3859 | #endif |
4251 | #endif |
3860 | |
4252 | |
3861 | #if EV_CHILD_ENABLE |
4253 | #if EV_CHILD_ENABLE |
3862 | |
4254 | |
3863 | void |
4255 | void |
3864 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4256 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3865 | { |
4257 | { |
3866 | #if EV_MULTIPLICITY |
4258 | #if EV_MULTIPLICITY |
3867 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4259 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3868 | #endif |
4260 | #endif |
3869 | if (expect_false (ev_is_active (w))) |
4261 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3876 | |
4268 | |
3877 | EV_FREQUENT_CHECK; |
4269 | EV_FREQUENT_CHECK; |
3878 | } |
4270 | } |
3879 | |
4271 | |
3880 | void |
4272 | void |
3881 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4273 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3882 | { |
4274 | { |
3883 | clear_pending (EV_A_ (W)w); |
4275 | clear_pending (EV_A_ (W)w); |
3884 | if (expect_false (!ev_is_active (w))) |
4276 | if (expect_false (!ev_is_active (w))) |
3885 | return; |
4277 | return; |
3886 | |
4278 | |
… | |
… | |
3903 | |
4295 | |
3904 | #define DEF_STAT_INTERVAL 5.0074891 |
4296 | #define DEF_STAT_INTERVAL 5.0074891 |
3905 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4297 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3906 | #define MIN_STAT_INTERVAL 0.1074891 |
4298 | #define MIN_STAT_INTERVAL 0.1074891 |
3907 | |
4299 | |
3908 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4300 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3909 | |
4301 | |
3910 | #if EV_USE_INOTIFY |
4302 | #if EV_USE_INOTIFY |
3911 | |
4303 | |
3912 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4304 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3913 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4305 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3914 | |
4306 | |
3915 | static void noinline |
4307 | noinline |
|
|
4308 | static void |
3916 | infy_add (EV_P_ ev_stat *w) |
4309 | infy_add (EV_P_ ev_stat *w) |
3917 | { |
4310 | { |
3918 | w->wd = inotify_add_watch (fs_fd, w->path, |
4311 | w->wd = inotify_add_watch (fs_fd, w->path, |
3919 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4312 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3920 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4313 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
3984 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4377 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3985 | ev_timer_again (EV_A_ &w->timer); |
4378 | ev_timer_again (EV_A_ &w->timer); |
3986 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4379 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3987 | } |
4380 | } |
3988 | |
4381 | |
3989 | static void noinline |
4382 | noinline |
|
|
4383 | static void |
3990 | infy_del (EV_P_ ev_stat *w) |
4384 | infy_del (EV_P_ ev_stat *w) |
3991 | { |
4385 | { |
3992 | int slot; |
4386 | int slot; |
3993 | int wd = w->wd; |
4387 | int wd = w->wd; |
3994 | |
4388 | |
… | |
… | |
4001 | |
4395 | |
4002 | /* remove this watcher, if others are watching it, they will rearm */ |
4396 | /* remove this watcher, if others are watching it, they will rearm */ |
4003 | inotify_rm_watch (fs_fd, wd); |
4397 | inotify_rm_watch (fs_fd, wd); |
4004 | } |
4398 | } |
4005 | |
4399 | |
4006 | static void noinline |
4400 | noinline |
|
|
4401 | static void |
4007 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4402 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4008 | { |
4403 | { |
4009 | if (slot < 0) |
4404 | if (slot < 0) |
4010 | /* overflow, need to check for all hash slots */ |
4405 | /* overflow, need to check for all hash slots */ |
4011 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4406 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4047 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4442 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4048 | ofs += sizeof (struct inotify_event) + ev->len; |
4443 | ofs += sizeof (struct inotify_event) + ev->len; |
4049 | } |
4444 | } |
4050 | } |
4445 | } |
4051 | |
4446 | |
4052 | inline_size void ecb_cold |
4447 | inline_size ecb_cold |
|
|
4448 | void |
4053 | ev_check_2625 (EV_P) |
4449 | ev_check_2625 (EV_P) |
4054 | { |
4450 | { |
4055 | /* kernels < 2.6.25 are borked |
4451 | /* kernels < 2.6.25 are borked |
4056 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4452 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4057 | */ |
4453 | */ |
… | |
… | |
4147 | #else |
4543 | #else |
4148 | # define EV_LSTAT(p,b) lstat (p, b) |
4544 | # define EV_LSTAT(p,b) lstat (p, b) |
4149 | #endif |
4545 | #endif |
4150 | |
4546 | |
4151 | void |
4547 | void |
4152 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4548 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
4153 | { |
4549 | { |
4154 | if (lstat (w->path, &w->attr) < 0) |
4550 | if (lstat (w->path, &w->attr) < 0) |
4155 | w->attr.st_nlink = 0; |
4551 | w->attr.st_nlink = 0; |
4156 | else if (!w->attr.st_nlink) |
4552 | else if (!w->attr.st_nlink) |
4157 | w->attr.st_nlink = 1; |
4553 | w->attr.st_nlink = 1; |
4158 | } |
4554 | } |
4159 | |
4555 | |
4160 | static void noinline |
4556 | noinline |
|
|
4557 | static void |
4161 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4558 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4162 | { |
4559 | { |
4163 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4560 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4164 | |
4561 | |
4165 | ev_statdata prev = w->attr; |
4562 | ev_statdata prev = w->attr; |
… | |
… | |
4196 | ev_feed_event (EV_A_ w, EV_STAT); |
4593 | ev_feed_event (EV_A_ w, EV_STAT); |
4197 | } |
4594 | } |
4198 | } |
4595 | } |
4199 | |
4596 | |
4200 | void |
4597 | void |
4201 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4598 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
4202 | { |
4599 | { |
4203 | if (expect_false (ev_is_active (w))) |
4600 | if (expect_false (ev_is_active (w))) |
4204 | return; |
4601 | return; |
4205 | |
4602 | |
4206 | ev_stat_stat (EV_A_ w); |
4603 | ev_stat_stat (EV_A_ w); |
… | |
… | |
4227 | |
4624 | |
4228 | EV_FREQUENT_CHECK; |
4625 | EV_FREQUENT_CHECK; |
4229 | } |
4626 | } |
4230 | |
4627 | |
4231 | void |
4628 | void |
4232 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4629 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
4233 | { |
4630 | { |
4234 | clear_pending (EV_A_ (W)w); |
4631 | clear_pending (EV_A_ (W)w); |
4235 | if (expect_false (!ev_is_active (w))) |
4632 | if (expect_false (!ev_is_active (w))) |
4236 | return; |
4633 | return; |
4237 | |
4634 | |
… | |
… | |
4253 | } |
4650 | } |
4254 | #endif |
4651 | #endif |
4255 | |
4652 | |
4256 | #if EV_IDLE_ENABLE |
4653 | #if EV_IDLE_ENABLE |
4257 | void |
4654 | void |
4258 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4655 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
4259 | { |
4656 | { |
4260 | if (expect_false (ev_is_active (w))) |
4657 | if (expect_false (ev_is_active (w))) |
4261 | return; |
4658 | return; |
4262 | |
4659 | |
4263 | pri_adjust (EV_A_ (W)w); |
4660 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
4268 | int active = ++idlecnt [ABSPRI (w)]; |
4665 | int active = ++idlecnt [ABSPRI (w)]; |
4269 | |
4666 | |
4270 | ++idleall; |
4667 | ++idleall; |
4271 | ev_start (EV_A_ (W)w, active); |
4668 | ev_start (EV_A_ (W)w, active); |
4272 | |
4669 | |
4273 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4670 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
4274 | idles [ABSPRI (w)][active - 1] = w; |
4671 | idles [ABSPRI (w)][active - 1] = w; |
4275 | } |
4672 | } |
4276 | |
4673 | |
4277 | EV_FREQUENT_CHECK; |
4674 | EV_FREQUENT_CHECK; |
4278 | } |
4675 | } |
4279 | |
4676 | |
4280 | void |
4677 | void |
4281 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4678 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
4282 | { |
4679 | { |
4283 | clear_pending (EV_A_ (W)w); |
4680 | clear_pending (EV_A_ (W)w); |
4284 | if (expect_false (!ev_is_active (w))) |
4681 | if (expect_false (!ev_is_active (w))) |
4285 | return; |
4682 | return; |
4286 | |
4683 | |
… | |
… | |
4300 | } |
4697 | } |
4301 | #endif |
4698 | #endif |
4302 | |
4699 | |
4303 | #if EV_PREPARE_ENABLE |
4700 | #if EV_PREPARE_ENABLE |
4304 | void |
4701 | void |
4305 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4702 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4306 | { |
4703 | { |
4307 | if (expect_false (ev_is_active (w))) |
4704 | if (expect_false (ev_is_active (w))) |
4308 | return; |
4705 | return; |
4309 | |
4706 | |
4310 | EV_FREQUENT_CHECK; |
4707 | EV_FREQUENT_CHECK; |
4311 | |
4708 | |
4312 | ev_start (EV_A_ (W)w, ++preparecnt); |
4709 | ev_start (EV_A_ (W)w, ++preparecnt); |
4313 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4710 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
4314 | prepares [preparecnt - 1] = w; |
4711 | prepares [preparecnt - 1] = w; |
4315 | |
4712 | |
4316 | EV_FREQUENT_CHECK; |
4713 | EV_FREQUENT_CHECK; |
4317 | } |
4714 | } |
4318 | |
4715 | |
4319 | void |
4716 | void |
4320 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4717 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4321 | { |
4718 | { |
4322 | clear_pending (EV_A_ (W)w); |
4719 | clear_pending (EV_A_ (W)w); |
4323 | if (expect_false (!ev_is_active (w))) |
4720 | if (expect_false (!ev_is_active (w))) |
4324 | return; |
4721 | return; |
4325 | |
4722 | |
… | |
… | |
4338 | } |
4735 | } |
4339 | #endif |
4736 | #endif |
4340 | |
4737 | |
4341 | #if EV_CHECK_ENABLE |
4738 | #if EV_CHECK_ENABLE |
4342 | void |
4739 | void |
4343 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4740 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4344 | { |
4741 | { |
4345 | if (expect_false (ev_is_active (w))) |
4742 | if (expect_false (ev_is_active (w))) |
4346 | return; |
4743 | return; |
4347 | |
4744 | |
4348 | EV_FREQUENT_CHECK; |
4745 | EV_FREQUENT_CHECK; |
4349 | |
4746 | |
4350 | ev_start (EV_A_ (W)w, ++checkcnt); |
4747 | ev_start (EV_A_ (W)w, ++checkcnt); |
4351 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4748 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
4352 | checks [checkcnt - 1] = w; |
4749 | checks [checkcnt - 1] = w; |
4353 | |
4750 | |
4354 | EV_FREQUENT_CHECK; |
4751 | EV_FREQUENT_CHECK; |
4355 | } |
4752 | } |
4356 | |
4753 | |
4357 | void |
4754 | void |
4358 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4755 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4359 | { |
4756 | { |
4360 | clear_pending (EV_A_ (W)w); |
4757 | clear_pending (EV_A_ (W)w); |
4361 | if (expect_false (!ev_is_active (w))) |
4758 | if (expect_false (!ev_is_active (w))) |
4362 | return; |
4759 | return; |
4363 | |
4760 | |
… | |
… | |
4375 | EV_FREQUENT_CHECK; |
4772 | EV_FREQUENT_CHECK; |
4376 | } |
4773 | } |
4377 | #endif |
4774 | #endif |
4378 | |
4775 | |
4379 | #if EV_EMBED_ENABLE |
4776 | #if EV_EMBED_ENABLE |
4380 | void noinline |
4777 | noinline |
|
|
4778 | void |
4381 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4779 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4382 | { |
4780 | { |
4383 | ev_run (w->other, EVRUN_NOWAIT); |
4781 | ev_run (w->other, EVRUN_NOWAIT); |
4384 | } |
4782 | } |
4385 | |
4783 | |
4386 | static void |
4784 | static void |
… | |
… | |
4434 | ev_idle_stop (EV_A_ idle); |
4832 | ev_idle_stop (EV_A_ idle); |
4435 | } |
4833 | } |
4436 | #endif |
4834 | #endif |
4437 | |
4835 | |
4438 | void |
4836 | void |
4439 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4837 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4440 | { |
4838 | { |
4441 | if (expect_false (ev_is_active (w))) |
4839 | if (expect_false (ev_is_active (w))) |
4442 | return; |
4840 | return; |
4443 | |
4841 | |
4444 | { |
4842 | { |
… | |
… | |
4465 | |
4863 | |
4466 | EV_FREQUENT_CHECK; |
4864 | EV_FREQUENT_CHECK; |
4467 | } |
4865 | } |
4468 | |
4866 | |
4469 | void |
4867 | void |
4470 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4868 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4471 | { |
4869 | { |
4472 | clear_pending (EV_A_ (W)w); |
4870 | clear_pending (EV_A_ (W)w); |
4473 | if (expect_false (!ev_is_active (w))) |
4871 | if (expect_false (!ev_is_active (w))) |
4474 | return; |
4872 | return; |
4475 | |
4873 | |
… | |
… | |
4485 | } |
4883 | } |
4486 | #endif |
4884 | #endif |
4487 | |
4885 | |
4488 | #if EV_FORK_ENABLE |
4886 | #if EV_FORK_ENABLE |
4489 | void |
4887 | void |
4490 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4888 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4491 | { |
4889 | { |
4492 | if (expect_false (ev_is_active (w))) |
4890 | if (expect_false (ev_is_active (w))) |
4493 | return; |
4891 | return; |
4494 | |
4892 | |
4495 | EV_FREQUENT_CHECK; |
4893 | EV_FREQUENT_CHECK; |
4496 | |
4894 | |
4497 | ev_start (EV_A_ (W)w, ++forkcnt); |
4895 | ev_start (EV_A_ (W)w, ++forkcnt); |
4498 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4896 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
4499 | forks [forkcnt - 1] = w; |
4897 | forks [forkcnt - 1] = w; |
4500 | |
4898 | |
4501 | EV_FREQUENT_CHECK; |
4899 | EV_FREQUENT_CHECK; |
4502 | } |
4900 | } |
4503 | |
4901 | |
4504 | void |
4902 | void |
4505 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4903 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4506 | { |
4904 | { |
4507 | clear_pending (EV_A_ (W)w); |
4905 | clear_pending (EV_A_ (W)w); |
4508 | if (expect_false (!ev_is_active (w))) |
4906 | if (expect_false (!ev_is_active (w))) |
4509 | return; |
4907 | return; |
4510 | |
4908 | |
… | |
… | |
4523 | } |
4921 | } |
4524 | #endif |
4922 | #endif |
4525 | |
4923 | |
4526 | #if EV_CLEANUP_ENABLE |
4924 | #if EV_CLEANUP_ENABLE |
4527 | void |
4925 | void |
4528 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4926 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4529 | { |
4927 | { |
4530 | if (expect_false (ev_is_active (w))) |
4928 | if (expect_false (ev_is_active (w))) |
4531 | return; |
4929 | return; |
4532 | |
4930 | |
4533 | EV_FREQUENT_CHECK; |
4931 | EV_FREQUENT_CHECK; |
4534 | |
4932 | |
4535 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4933 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
4536 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
4934 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
4537 | cleanups [cleanupcnt - 1] = w; |
4935 | cleanups [cleanupcnt - 1] = w; |
4538 | |
4936 | |
4539 | /* cleanup watchers should never keep a refcount on the loop */ |
4937 | /* cleanup watchers should never keep a refcount on the loop */ |
4540 | ev_unref (EV_A); |
4938 | ev_unref (EV_A); |
4541 | EV_FREQUENT_CHECK; |
4939 | EV_FREQUENT_CHECK; |
4542 | } |
4940 | } |
4543 | |
4941 | |
4544 | void |
4942 | void |
4545 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4943 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4546 | { |
4944 | { |
4547 | clear_pending (EV_A_ (W)w); |
4945 | clear_pending (EV_A_ (W)w); |
4548 | if (expect_false (!ev_is_active (w))) |
4946 | if (expect_false (!ev_is_active (w))) |
4549 | return; |
4947 | return; |
4550 | |
4948 | |
… | |
… | |
4564 | } |
4962 | } |
4565 | #endif |
4963 | #endif |
4566 | |
4964 | |
4567 | #if EV_ASYNC_ENABLE |
4965 | #if EV_ASYNC_ENABLE |
4568 | void |
4966 | void |
4569 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4967 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4570 | { |
4968 | { |
4571 | if (expect_false (ev_is_active (w))) |
4969 | if (expect_false (ev_is_active (w))) |
4572 | return; |
4970 | return; |
4573 | |
4971 | |
4574 | w->sent = 0; |
4972 | w->sent = 0; |
… | |
… | |
4576 | evpipe_init (EV_A); |
4974 | evpipe_init (EV_A); |
4577 | |
4975 | |
4578 | EV_FREQUENT_CHECK; |
4976 | EV_FREQUENT_CHECK; |
4579 | |
4977 | |
4580 | ev_start (EV_A_ (W)w, ++asynccnt); |
4978 | ev_start (EV_A_ (W)w, ++asynccnt); |
4581 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
4979 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
4582 | asyncs [asynccnt - 1] = w; |
4980 | asyncs [asynccnt - 1] = w; |
4583 | |
4981 | |
4584 | EV_FREQUENT_CHECK; |
4982 | EV_FREQUENT_CHECK; |
4585 | } |
4983 | } |
4586 | |
4984 | |
4587 | void |
4985 | void |
4588 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4986 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4589 | { |
4987 | { |
4590 | clear_pending (EV_A_ (W)w); |
4988 | clear_pending (EV_A_ (W)w); |
4591 | if (expect_false (!ev_is_active (w))) |
4989 | if (expect_false (!ev_is_active (w))) |
4592 | return; |
4990 | return; |
4593 | |
4991 | |
… | |
… | |
4604 | |
5002 | |
4605 | EV_FREQUENT_CHECK; |
5003 | EV_FREQUENT_CHECK; |
4606 | } |
5004 | } |
4607 | |
5005 | |
4608 | void |
5006 | void |
4609 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
5007 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4610 | { |
5008 | { |
4611 | w->sent = 1; |
5009 | w->sent = 1; |
4612 | evpipe_write (EV_A_ &async_pending); |
5010 | evpipe_write (EV_A_ &async_pending); |
4613 | } |
5011 | } |
4614 | #endif |
5012 | #endif |
… | |
… | |
4651 | |
5049 | |
4652 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5050 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4653 | } |
5051 | } |
4654 | |
5052 | |
4655 | void |
5053 | void |
4656 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5054 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4657 | { |
5055 | { |
4658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5056 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4659 | |
|
|
4660 | if (expect_false (!once)) |
|
|
4661 | { |
|
|
4662 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
|
|
4663 | return; |
|
|
4664 | } |
|
|
4665 | |
5057 | |
4666 | once->cb = cb; |
5058 | once->cb = cb; |
4667 | once->arg = arg; |
5059 | once->arg = arg; |
4668 | |
5060 | |
4669 | ev_init (&once->io, once_cb_io); |
5061 | ev_init (&once->io, once_cb_io); |
… | |
… | |
4682 | } |
5074 | } |
4683 | |
5075 | |
4684 | /*****************************************************************************/ |
5076 | /*****************************************************************************/ |
4685 | |
5077 | |
4686 | #if EV_WALK_ENABLE |
5078 | #if EV_WALK_ENABLE |
4687 | void ecb_cold |
5079 | ecb_cold |
|
|
5080 | void |
4688 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5081 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4689 | { |
5082 | { |
4690 | int i, j; |
5083 | int i, j; |
4691 | ev_watcher_list *wl, *wn; |
5084 | ev_watcher_list *wl, *wn; |
4692 | |
5085 | |
4693 | if (types & (EV_IO | EV_EMBED)) |
5086 | if (types & (EV_IO | EV_EMBED)) |