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) 2007-2018 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 |
… | |
… | |
162 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
163 | # endif |
163 | # endif |
164 | |
164 | |
165 | #endif |
165 | #endif |
166 | |
166 | |
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|
167 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
168 | * a limit of 1024 into their select. Where people have brains, |
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169 | * OS X engineers apparently have a vacuum. Or maybe they were |
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170 | * ordered to have a vacuum, or they do anything for money. |
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171 | * This might help. Or not. |
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172 | * Note that this must be defined early, as other include files |
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173 | * will rely on this define as well. |
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174 | */ |
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175 | #define _DARWIN_UNLIMITED_SELECT 1 |
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176 | |
167 | #include <stdlib.h> |
177 | #include <stdlib.h> |
168 | #include <string.h> |
178 | #include <string.h> |
169 | #include <fcntl.h> |
179 | #include <fcntl.h> |
170 | #include <stddef.h> |
180 | #include <stddef.h> |
171 | |
181 | |
… | |
… | |
201 | # include <sys/wait.h> |
211 | # include <sys/wait.h> |
202 | # include <unistd.h> |
212 | # include <unistd.h> |
203 | #else |
213 | #else |
204 | # include <io.h> |
214 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
215 | # define WIN32_LEAN_AND_MEAN |
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|
216 | # include <winsock2.h> |
206 | # include <windows.h> |
217 | # include <windows.h> |
207 | # ifndef EV_SELECT_IS_WINSOCKET |
218 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # define EV_SELECT_IS_WINSOCKET 1 |
219 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # endif |
220 | # endif |
210 | # undef EV_AVOID_STDIO |
221 | # undef EV_AVOID_STDIO |
211 | #endif |
222 | #endif |
212 | |
|
|
213 | /* OS X, in its infinite idiocy, actually HARDCODES |
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|
214 | * a limit of 1024 into their select. Where people have brains, |
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215 | * OS X engineers apparently have a vacuum. Or maybe they were |
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216 | * ordered to have a vacuum, or they do anything for money. |
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217 | * This might help. Or not. |
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218 | */ |
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219 | #define _DARWIN_UNLIMITED_SELECT 1 |
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220 | |
223 | |
221 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
224 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | |
225 | |
223 | /* try to deduce the maximum number of signals on this platform */ |
226 | /* try to deduce the maximum number of signals on this platform */ |
224 | #if defined EV_NSIG |
227 | #if defined EV_NSIG |
… | |
… | |
240 | #elif defined SIGARRAYSIZE |
243 | #elif defined SIGARRAYSIZE |
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
244 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | #elif defined _sys_nsig |
245 | #elif defined _sys_nsig |
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
246 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | #else |
247 | #else |
245 | # error "unable to find value for NSIG, please report" |
248 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
246 | /* to make it compile regardless, just remove the above line, */ |
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|
247 | /* but consider reporting it, too! :) */ |
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248 | # define EV_NSIG 65 |
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|
249 | #endif |
249 | #endif |
250 | |
250 | |
251 | #ifndef EV_USE_FLOOR |
251 | #ifndef EV_USE_FLOOR |
252 | # define EV_USE_FLOOR 0 |
252 | # define EV_USE_FLOOR 0 |
253 | #endif |
253 | #endif |
254 | |
254 | |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | # if __linux && __GLIBC__ >= 2 |
256 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # else |
258 | # else |
259 | # define EV_USE_CLOCK_SYSCALL 0 |
259 | # define EV_USE_CLOCK_SYSCALL 0 |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if !(_POSIX_TIMERS > 0) |
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264 | # ifndef EV_USE_MONOTONIC |
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265 | # define EV_USE_MONOTONIC 0 |
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|
266 | # endif |
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267 | # ifndef EV_USE_REALTIME |
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268 | # define EV_USE_REALTIME 0 |
260 | # endif |
269 | # endif |
261 | #endif |
270 | #endif |
262 | |
271 | |
263 | #ifndef EV_USE_MONOTONIC |
272 | #ifndef EV_USE_MONOTONIC |
264 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
273 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
356 | |
365 | |
357 | #ifndef EV_HEAP_CACHE_AT |
366 | #ifndef EV_HEAP_CACHE_AT |
358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
367 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | #endif |
368 | #endif |
360 | |
369 | |
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370 | #ifdef __ANDROID__ |
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371 | /* supposedly, android doesn't typedef fd_mask */ |
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372 | # undef EV_USE_SELECT |
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373 | # define EV_USE_SELECT 0 |
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374 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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375 | # undef EV_USE_CLOCK_SYSCALL |
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376 | # define EV_USE_CLOCK_SYSCALL 0 |
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377 | #endif |
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378 | |
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379 | /* aix's poll.h seems to cause lots of trouble */ |
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380 | #ifdef _AIX |
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381 | /* AIX has a completely broken poll.h header */ |
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382 | # undef EV_USE_POLL |
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383 | # define EV_USE_POLL 0 |
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384 | #endif |
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385 | |
361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
386 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* which makes programs even slower. might work on other unices, too. */ |
387 | /* which makes programs even slower. might work on other unices, too. */ |
363 | #if EV_USE_CLOCK_SYSCALL |
388 | #if EV_USE_CLOCK_SYSCALL |
364 | # include <syscall.h> |
389 | # include <sys/syscall.h> |
365 | # ifdef SYS_clock_gettime |
390 | # ifdef SYS_clock_gettime |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
391 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
368 | # define EV_USE_MONOTONIC 1 |
393 | # define EV_USE_MONOTONIC 1 |
369 | # else |
394 | # else |
… | |
… | |
372 | # endif |
397 | # endif |
373 | #endif |
398 | #endif |
374 | |
399 | |
375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
400 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
376 | |
401 | |
377 | #ifdef _AIX |
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378 | /* AIX has a completely broken poll.h header */ |
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379 | # undef EV_USE_POLL |
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380 | # define EV_USE_POLL 0 |
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381 | #endif |
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382 | |
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383 | #ifndef CLOCK_MONOTONIC |
402 | #ifndef CLOCK_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
403 | # undef EV_USE_MONOTONIC |
385 | # define EV_USE_MONOTONIC 0 |
404 | # define EV_USE_MONOTONIC 0 |
386 | #endif |
405 | #endif |
387 | |
406 | |
… | |
… | |
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
427 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | # ifndef IN_DONT_FOLLOW |
428 | # ifndef IN_DONT_FOLLOW |
410 | # undef EV_USE_INOTIFY |
429 | # undef EV_USE_INOTIFY |
411 | # define EV_USE_INOTIFY 0 |
430 | # define EV_USE_INOTIFY 0 |
412 | # endif |
431 | # endif |
413 | #endif |
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414 | |
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415 | #if EV_SELECT_IS_WINSOCKET |
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416 | # include <winsock.h> |
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|
417 | #endif |
432 | #endif |
418 | |
433 | |
419 | #if EV_USE_EVENTFD |
434 | #if EV_USE_EVENTFD |
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
435 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
421 | # include <stdint.h> |
436 | # include <stdint.h> |
… | |
… | |
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
493 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
479 | /* ECB.H BEGIN */ |
494 | /* ECB.H BEGIN */ |
480 | /* |
495 | /* |
481 | * libecb - http://software.schmorp.de/pkg/libecb |
496 | * libecb - http://software.schmorp.de/pkg/libecb |
482 | * |
497 | * |
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
498 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
484 | * Copyright (©) 2011 Emanuele Giaquinta |
499 | * Copyright (©) 2011 Emanuele Giaquinta |
485 | * All rights reserved. |
500 | * All rights reserved. |
486 | * |
501 | * |
487 | * Redistribution and use in source and binary forms, with or without modifica- |
502 | * Redistribution and use in source and binary forms, with or without modifica- |
488 | * tion, are permitted provided that the following conditions are met: |
503 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
517 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
518 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
519 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
505 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
520 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
521 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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522 | * |
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523 | * Alternatively, the contents of this file may be used under the terms of |
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524 | * the GNU General Public License ("GPL") version 2 or any later version, |
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525 | * in which case the provisions of the GPL are applicable instead of |
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526 | * the above. If you wish to allow the use of your version of this file |
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527 | * only under the terms of the GPL and not to allow others to use your |
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528 | * version of this file under the BSD license, indicate your decision |
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529 | * by deleting the provisions above and replace them with the notice |
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530 | * and other provisions required by the GPL. If you do not delete the |
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531 | * provisions above, a recipient may use your version of this file under |
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532 | * either the BSD or the GPL. |
507 | */ |
533 | */ |
508 | |
534 | |
509 | #ifndef ECB_H |
535 | #ifndef ECB_H |
510 | #define ECB_H |
536 | #define ECB_H |
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537 | |
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538 | /* 16 bits major, 16 bits minor */ |
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539 | #define ECB_VERSION 0x00010005 |
511 | |
540 | |
512 | #ifdef _WIN32 |
541 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
542 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
543 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
544 | typedef signed short int16_t; |
… | |
… | |
521 | typedef unsigned long long uint64_t; |
550 | typedef unsigned long long uint64_t; |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
551 | #else /* _MSC_VER || __BORLANDC__ */ |
523 | typedef signed __int64 int64_t; |
552 | typedef signed __int64 int64_t; |
524 | typedef unsigned __int64 uint64_t; |
553 | typedef unsigned __int64 uint64_t; |
525 | #endif |
554 | #endif |
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555 | #ifdef _WIN64 |
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556 | #define ECB_PTRSIZE 8 |
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557 | typedef uint64_t uintptr_t; |
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558 | typedef int64_t intptr_t; |
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559 | #else |
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560 | #define ECB_PTRSIZE 4 |
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561 | typedef uint32_t uintptr_t; |
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562 | typedef int32_t intptr_t; |
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563 | #endif |
526 | #else |
564 | #else |
527 | #include <inttypes.h> |
565 | #include <inttypes.h> |
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566 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
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567 | #define ECB_PTRSIZE 8 |
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568 | #else |
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569 | #define ECB_PTRSIZE 4 |
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570 | #endif |
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571 | #endif |
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572 | |
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573 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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574 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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575 | |
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576 | /* work around x32 idiocy by defining proper macros */ |
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577 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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578 | #if _ILP32 |
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579 | #define ECB_AMD64_X32 1 |
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580 | #else |
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581 | #define ECB_AMD64 1 |
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582 | #endif |
528 | #endif |
583 | #endif |
529 | |
584 | |
530 | /* many compilers define _GNUC_ to some versions but then only implement |
585 | /* many compilers define _GNUC_ to some versions but then only implement |
531 | * what their idiot authors think are the "more important" extensions, |
586 | * what their idiot authors think are the "more important" extensions, |
532 | * causing enormous grief in return for some better fake benchmark numbers. |
587 | * causing enormous grief in return for some better fake benchmark numbers. |
533 | * or so. |
588 | * or so. |
534 | * we try to detect these and simply assume they are not gcc - if they have |
589 | * we try to detect these and simply assume they are not gcc - if they have |
535 | * an issue with that they should have done it right in the first place. |
590 | * an issue with that they should have done it right in the first place. |
536 | */ |
591 | */ |
537 | #ifndef ECB_GCC_VERSION |
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538 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
592 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
539 | #define ECB_GCC_VERSION(major,minor) 0 |
593 | #define ECB_GCC_VERSION(major,minor) 0 |
540 | #else |
594 | #else |
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
595 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
542 | #endif |
596 | #endif |
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597 | |
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598 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
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599 | |
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600 | #if __clang__ && defined __has_builtin |
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601 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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602 | #else |
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603 | #define ECB_CLANG_BUILTIN(x) 0 |
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604 | #endif |
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605 | |
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606 | #if __clang__ && defined __has_extension |
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607 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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608 | #else |
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609 | #define ECB_CLANG_EXTENSION(x) 0 |
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610 | #endif |
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611 | |
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612 | #define ECB_CPP (__cplusplus+0) |
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613 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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614 | #define ECB_CPP14 (__cplusplus >= 201402L) |
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615 | #define ECB_CPP17 (__cplusplus >= 201703L) |
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616 | |
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617 | #if ECB_CPP |
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618 | #define ECB_C 0 |
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619 | #define ECB_STDC_VERSION 0 |
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620 | #else |
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621 | #define ECB_C 1 |
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622 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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623 | #endif |
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624 | |
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625 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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626 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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627 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
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628 | |
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629 | #if ECB_CPP |
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630 | #define ECB_EXTERN_C extern "C" |
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631 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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632 | #define ECB_EXTERN_C_END } |
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633 | #else |
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634 | #define ECB_EXTERN_C extern |
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635 | #define ECB_EXTERN_C_BEG |
|
|
636 | #define ECB_EXTERN_C_END |
543 | #endif |
637 | #endif |
544 | |
638 | |
545 | /*****************************************************************************/ |
639 | /*****************************************************************************/ |
546 | |
640 | |
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
641 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
642 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
549 | |
643 | |
550 | #if ECB_NO_THREADS |
644 | #if ECB_NO_THREADS |
551 | # define ECB_NO_SMP 1 |
645 | #define ECB_NO_SMP 1 |
552 | #endif |
646 | #endif |
553 | |
647 | |
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
648 | #if ECB_NO_SMP |
555 | #define ECB_MEMORY_FENCE do { } while (0) |
649 | #define ECB_MEMORY_FENCE do { } while (0) |
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650 | #endif |
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651 | |
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652 | /* 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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653 | #if __xlC__ && ECB_CPP |
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654 | #include <builtins.h> |
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655 | #endif |
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656 | |
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657 | #if 1400 <= _MSC_VER |
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658 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
556 | #endif |
659 | #endif |
557 | |
660 | |
558 | #ifndef ECB_MEMORY_FENCE |
661 | #ifndef ECB_MEMORY_FENCE |
559 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
662 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
560 | #if __i386 || __i386__ |
663 | #if __i386 || __i386__ |
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
664 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
665 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
666 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
667 | #elif ECB_GCC_AMD64 |
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
668 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
669 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
670 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
671 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
672 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
673 | #elif defined __ARM_ARCH_2__ \ |
|
|
674 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
675 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
676 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
677 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
678 | || defined __ARM_ARCH_5TEJ__ |
|
|
679 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
570 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
680 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
571 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
681 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
682 | || defined __ARM_ARCH_6T2__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
573 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
684 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
574 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
685 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
686 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
576 | #elif __sparc || __sparc__ |
687 | #elif __aarch64__ |
|
|
688 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
689 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
690 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
691 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
692 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
580 | #elif defined __s390__ || defined __s390x__ |
693 | #elif defined __s390__ || defined __s390x__ |
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
694 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
582 | #elif defined __mips__ |
695 | #elif defined __mips__ |
|
|
696 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
697 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
698 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
584 | #elif defined __alpha__ |
699 | #elif defined __alpha__ |
585 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
700 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
701 | #elif defined __hppa__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
703 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
704 | #elif defined __ia64__ |
|
|
705 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
706 | #elif defined __m68k__ |
|
|
707 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
708 | #elif defined __m88k__ |
|
|
709 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
710 | #elif defined __sh__ |
|
|
711 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
586 | #endif |
712 | #endif |
587 | #endif |
713 | #endif |
588 | #endif |
714 | #endif |
589 | |
715 | |
590 | #ifndef ECB_MEMORY_FENCE |
716 | #ifndef ECB_MEMORY_FENCE |
|
|
717 | #if ECB_GCC_VERSION(4,7) |
|
|
718 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
719 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
720 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
721 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
722 | |
|
|
723 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
724 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
725 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
726 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
727 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
728 | |
591 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
729 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
592 | #define ECB_MEMORY_FENCE __sync_synchronize () |
730 | #define ECB_MEMORY_FENCE __sync_synchronize () |
593 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
731 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
594 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
732 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
735 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
595 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
737 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
596 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
738 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
597 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
739 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
598 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
740 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
599 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
741 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
609 | #define ECB_MEMORY_FENCE __sync () |
751 | #define ECB_MEMORY_FENCE __sync () |
610 | #endif |
752 | #endif |
611 | #endif |
753 | #endif |
612 | |
754 | |
613 | #ifndef ECB_MEMORY_FENCE |
755 | #ifndef ECB_MEMORY_FENCE |
|
|
756 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
757 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
758 | /* not just C11 atomics and atomic accesses */ |
|
|
759 | #include <stdatomic.h> |
|
|
760 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
761 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
762 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
763 | /* for most usages, or gcc and clang have a bug */ |
|
|
764 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
765 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
766 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
767 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
768 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
769 | #endif |
|
|
770 | #endif |
|
|
771 | |
|
|
772 | #ifndef ECB_MEMORY_FENCE |
614 | #if !ECB_AVOID_PTHREADS |
773 | #if !ECB_AVOID_PTHREADS |
615 | /* |
774 | /* |
616 | * if you get undefined symbol references to pthread_mutex_lock, |
775 | * if you get undefined symbol references to pthread_mutex_lock, |
617 | * or failure to find pthread.h, then you should implement |
776 | * or failure to find pthread.h, then you should implement |
618 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
777 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
636 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
795 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
637 | #endif |
796 | #endif |
638 | |
797 | |
639 | /*****************************************************************************/ |
798 | /*****************************************************************************/ |
640 | |
799 | |
641 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
800 | #if ECB_CPP |
642 | |
|
|
643 | #if __cplusplus |
|
|
644 | #define ecb_inline static inline |
801 | #define ecb_inline static inline |
645 | #elif ECB_GCC_VERSION(2,5) |
802 | #elif ECB_GCC_VERSION(2,5) |
646 | #define ecb_inline static __inline__ |
803 | #define ecb_inline static __inline__ |
647 | #elif ECB_C99 |
804 | #elif ECB_C99 |
648 | #define ecb_inline static inline |
805 | #define ecb_inline static inline |
… | |
… | |
662 | |
819 | |
663 | #define ECB_CONCAT_(a, b) a ## b |
820 | #define ECB_CONCAT_(a, b) a ## b |
664 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
821 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
665 | #define ECB_STRINGIFY_(a) # a |
822 | #define ECB_STRINGIFY_(a) # a |
666 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
823 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
824 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
667 | |
825 | |
668 | #define ecb_function_ ecb_inline |
826 | #define ecb_function_ ecb_inline |
669 | |
827 | |
670 | #if ECB_GCC_VERSION(3,1) |
828 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
671 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
829 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
830 | #else |
|
|
831 | #define ecb_attribute(attrlist) |
|
|
832 | #endif |
|
|
833 | |
|
|
834 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
672 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
835 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
836 | #else |
|
|
837 | /* possible C11 impl for integral types |
|
|
838 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
839 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
840 | |
|
|
841 | #define ecb_is_constant(expr) 0 |
|
|
842 | #endif |
|
|
843 | |
|
|
844 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
673 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
845 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
846 | #else |
|
|
847 | #define ecb_expect(expr,value) (expr) |
|
|
848 | #endif |
|
|
849 | |
|
|
850 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
674 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
851 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
675 | #else |
852 | #else |
676 | #define ecb_attribute(attrlist) |
|
|
677 | #define ecb_is_constant(expr) 0 |
|
|
678 | #define ecb_expect(expr,value) (expr) |
|
|
679 | #define ecb_prefetch(addr,rw,locality) |
853 | #define ecb_prefetch(addr,rw,locality) |
680 | #endif |
854 | #endif |
681 | |
855 | |
682 | /* no emulation for ecb_decltype */ |
856 | /* no emulation for ecb_decltype */ |
683 | #if ECB_GCC_VERSION(4,5) |
857 | #if ECB_CPP11 |
|
|
858 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
859 | template<class T> struct ecb_decltype_t { typedef T type; }; |
684 | #define ecb_decltype(x) __decltype(x) |
860 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
685 | #elif ECB_GCC_VERSION(3,0) |
861 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
686 | #define ecb_decltype(x) __typeof(x) |
862 | #define ecb_decltype(x) __typeof__ (x) |
687 | #endif |
863 | #endif |
688 | |
864 | |
|
|
865 | #if _MSC_VER >= 1300 |
|
|
866 | #define ecb_deprecated __declspec (deprecated) |
|
|
867 | #else |
|
|
868 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if _MSC_VER >= 1500 |
|
|
872 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
873 | #elif ECB_GCC_VERSION(4,5) |
|
|
874 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
875 | #else |
|
|
876 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #if _MSC_VER >= 1400 |
|
|
880 | #define ecb_noinline __declspec (noinline) |
|
|
881 | #else |
689 | #define ecb_noinline ecb_attribute ((__noinline__)) |
882 | #define ecb_noinline ecb_attribute ((__noinline__)) |
690 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
883 | #endif |
|
|
884 | |
691 | #define ecb_unused ecb_attribute ((__unused__)) |
885 | #define ecb_unused ecb_attribute ((__unused__)) |
692 | #define ecb_const ecb_attribute ((__const__)) |
886 | #define ecb_const ecb_attribute ((__const__)) |
693 | #define ecb_pure ecb_attribute ((__pure__)) |
887 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
888 | |
|
|
889 | #if ECB_C11 || __IBMC_NORETURN |
|
|
890 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
891 | #define ecb_noreturn _Noreturn |
|
|
892 | #elif ECB_CPP11 |
|
|
893 | #define ecb_noreturn [[noreturn]] |
|
|
894 | #elif _MSC_VER >= 1200 |
|
|
895 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
896 | #define ecb_noreturn __declspec (noreturn) |
|
|
897 | #else |
|
|
898 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
899 | #endif |
694 | |
900 | |
695 | #if ECB_GCC_VERSION(4,3) |
901 | #if ECB_GCC_VERSION(4,3) |
696 | #define ecb_artificial ecb_attribute ((__artificial__)) |
902 | #define ecb_artificial ecb_attribute ((__artificial__)) |
697 | #define ecb_hot ecb_attribute ((__hot__)) |
903 | #define ecb_hot ecb_attribute ((__hot__)) |
698 | #define ecb_cold ecb_attribute ((__cold__)) |
904 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
710 | /* for compatibility to the rest of the world */ |
916 | /* for compatibility to the rest of the world */ |
711 | #define ecb_likely(expr) ecb_expect_true (expr) |
917 | #define ecb_likely(expr) ecb_expect_true (expr) |
712 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
918 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
713 | |
919 | |
714 | /* count trailing zero bits and count # of one bits */ |
920 | /* count trailing zero bits and count # of one bits */ |
715 | #if ECB_GCC_VERSION(3,4) |
921 | #if ECB_GCC_VERSION(3,4) \ |
|
|
922 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
923 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
924 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
716 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
925 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
717 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
926 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
718 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
927 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
719 | #define ecb_ctz32(x) __builtin_ctz (x) |
928 | #define ecb_ctz32(x) __builtin_ctz (x) |
720 | #define ecb_ctz64(x) __builtin_ctzll (x) |
929 | #define ecb_ctz64(x) __builtin_ctzll (x) |
721 | #define ecb_popcount32(x) __builtin_popcount (x) |
930 | #define ecb_popcount32(x) __builtin_popcount (x) |
722 | /* no popcountll */ |
931 | /* no popcountll */ |
723 | #else |
932 | #else |
724 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
933 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
725 | ecb_function_ int |
934 | ecb_function_ ecb_const int |
726 | ecb_ctz32 (uint32_t x) |
935 | ecb_ctz32 (uint32_t x) |
727 | { |
936 | { |
|
|
937 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
938 | unsigned long r; |
|
|
939 | _BitScanForward (&r, x); |
|
|
940 | return (int)r; |
|
|
941 | #else |
728 | int r = 0; |
942 | int r = 0; |
729 | |
943 | |
730 | x &= ~x + 1; /* this isolates the lowest bit */ |
944 | x &= ~x + 1; /* this isolates the lowest bit */ |
731 | |
945 | |
732 | #if ECB_branchless_on_i386 |
946 | #if ECB_branchless_on_i386 |
… | |
… | |
742 | if (x & 0xff00ff00) r += 8; |
956 | if (x & 0xff00ff00) r += 8; |
743 | if (x & 0xffff0000) r += 16; |
957 | if (x & 0xffff0000) r += 16; |
744 | #endif |
958 | #endif |
745 | |
959 | |
746 | return r; |
960 | return r; |
|
|
961 | #endif |
747 | } |
962 | } |
748 | |
963 | |
749 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
964 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
750 | ecb_function_ int |
965 | ecb_function_ ecb_const int |
751 | ecb_ctz64 (uint64_t x) |
966 | ecb_ctz64 (uint64_t x) |
752 | { |
967 | { |
|
|
968 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
969 | unsigned long r; |
|
|
970 | _BitScanForward64 (&r, x); |
|
|
971 | return (int)r; |
|
|
972 | #else |
753 | int shift = x & 0xffffffffU ? 0 : 32; |
973 | int shift = x & 0xffffffff ? 0 : 32; |
754 | return ecb_ctz32 (x >> shift) + shift; |
974 | return ecb_ctz32 (x >> shift) + shift; |
|
|
975 | #endif |
755 | } |
976 | } |
756 | |
977 | |
757 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
978 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
758 | ecb_function_ int |
979 | ecb_function_ ecb_const int |
759 | ecb_popcount32 (uint32_t x) |
980 | ecb_popcount32 (uint32_t x) |
760 | { |
981 | { |
761 | x -= (x >> 1) & 0x55555555; |
982 | x -= (x >> 1) & 0x55555555; |
762 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
983 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
763 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
984 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
764 | x *= 0x01010101; |
985 | x *= 0x01010101; |
765 | |
986 | |
766 | return x >> 24; |
987 | return x >> 24; |
767 | } |
988 | } |
768 | |
989 | |
769 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
990 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
770 | ecb_function_ int ecb_ld32 (uint32_t x) |
991 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
771 | { |
992 | { |
|
|
993 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
994 | unsigned long r; |
|
|
995 | _BitScanReverse (&r, x); |
|
|
996 | return (int)r; |
|
|
997 | #else |
772 | int r = 0; |
998 | int r = 0; |
773 | |
999 | |
774 | if (x >> 16) { x >>= 16; r += 16; } |
1000 | if (x >> 16) { x >>= 16; r += 16; } |
775 | if (x >> 8) { x >>= 8; r += 8; } |
1001 | if (x >> 8) { x >>= 8; r += 8; } |
776 | if (x >> 4) { x >>= 4; r += 4; } |
1002 | if (x >> 4) { x >>= 4; r += 4; } |
777 | if (x >> 2) { x >>= 2; r += 2; } |
1003 | if (x >> 2) { x >>= 2; r += 2; } |
778 | if (x >> 1) { r += 1; } |
1004 | if (x >> 1) { r += 1; } |
779 | |
1005 | |
780 | return r; |
1006 | return r; |
|
|
1007 | #endif |
781 | } |
1008 | } |
782 | |
1009 | |
783 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1010 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
784 | ecb_function_ int ecb_ld64 (uint64_t x) |
1011 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
785 | { |
1012 | { |
|
|
1013 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1014 | unsigned long r; |
|
|
1015 | _BitScanReverse64 (&r, x); |
|
|
1016 | return (int)r; |
|
|
1017 | #else |
786 | int r = 0; |
1018 | int r = 0; |
787 | |
1019 | |
788 | if (x >> 32) { x >>= 32; r += 32; } |
1020 | if (x >> 32) { x >>= 32; r += 32; } |
789 | |
1021 | |
790 | return r + ecb_ld32 (x); |
1022 | return r + ecb_ld32 (x); |
|
|
1023 | #endif |
791 | } |
1024 | } |
792 | #endif |
1025 | #endif |
793 | |
1026 | |
|
|
1027 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1028 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1029 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1030 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1031 | |
794 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1032 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1033 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
796 | { |
1034 | { |
797 | return ( (x * 0x0802U & 0x22110U) |
1035 | return ( (x * 0x0802U & 0x22110U) |
798 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1036 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
799 | } |
1037 | } |
800 | |
1038 | |
801 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1039 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1040 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
803 | { |
1041 | { |
804 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1042 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
805 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1043 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
806 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1044 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
807 | x = ( x >> 8 ) | ( x << 8); |
1045 | x = ( x >> 8 ) | ( x << 8); |
808 | |
1046 | |
809 | return x; |
1047 | return x; |
810 | } |
1048 | } |
811 | |
1049 | |
812 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1050 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1051 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
814 | { |
1052 | { |
815 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1053 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
816 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1054 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
817 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1055 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
818 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1056 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
821 | return x; |
1059 | return x; |
822 | } |
1060 | } |
823 | |
1061 | |
824 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1062 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
825 | /* so for this version we are lazy */ |
1063 | /* so for this version we are lazy */ |
826 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1064 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
827 | ecb_function_ int |
1065 | ecb_function_ ecb_const int |
828 | ecb_popcount64 (uint64_t x) |
1066 | ecb_popcount64 (uint64_t x) |
829 | { |
1067 | { |
830 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1068 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
831 | } |
1069 | } |
832 | |
1070 | |
833 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1071 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
834 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1072 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
835 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1073 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
836 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1074 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
837 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1075 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
838 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1076 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
839 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1077 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
840 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1078 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
841 | |
1079 | |
842 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1080 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
843 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1081 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
844 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1082 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
845 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1083 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
846 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1084 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
847 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1085 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
848 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1086 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
849 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1087 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
850 | |
1088 | |
851 | #if ECB_GCC_VERSION(4,3) |
1089 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1090 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1091 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1092 | #else |
852 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1093 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1094 | #endif |
853 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1095 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
854 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1096 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1097 | #elif _MSC_VER |
|
|
1098 | #include <stdlib.h> |
|
|
1099 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1100 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1101 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
855 | #else |
1102 | #else |
856 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1103 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
857 | ecb_function_ uint16_t |
1104 | ecb_function_ ecb_const uint16_t |
858 | ecb_bswap16 (uint16_t x) |
1105 | ecb_bswap16 (uint16_t x) |
859 | { |
1106 | { |
860 | return ecb_rotl16 (x, 8); |
1107 | return ecb_rotl16 (x, 8); |
861 | } |
1108 | } |
862 | |
1109 | |
863 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1110 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
864 | ecb_function_ uint32_t |
1111 | ecb_function_ ecb_const uint32_t |
865 | ecb_bswap32 (uint32_t x) |
1112 | ecb_bswap32 (uint32_t x) |
866 | { |
1113 | { |
867 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1114 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
868 | } |
1115 | } |
869 | |
1116 | |
870 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1117 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
871 | ecb_function_ uint64_t |
1118 | ecb_function_ ecb_const uint64_t |
872 | ecb_bswap64 (uint64_t x) |
1119 | ecb_bswap64 (uint64_t x) |
873 | { |
1120 | { |
874 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1121 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
875 | } |
1122 | } |
876 | #endif |
1123 | #endif |
877 | |
1124 | |
878 | #if ECB_GCC_VERSION(4,5) |
1125 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
879 | #define ecb_unreachable() __builtin_unreachable () |
1126 | #define ecb_unreachable() __builtin_unreachable () |
880 | #else |
1127 | #else |
881 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1128 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
882 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1129 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
883 | ecb_inline void ecb_unreachable (void) { } |
1130 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
884 | #endif |
1131 | #endif |
885 | |
1132 | |
886 | /* try to tell the compiler that some condition is definitely true */ |
1133 | /* try to tell the compiler that some condition is definitely true */ |
887 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1134 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
888 | |
1135 | |
889 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1136 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
890 | ecb_inline unsigned char |
1137 | ecb_inline ecb_const uint32_t |
891 | ecb_byteorder_helper (void) |
1138 | ecb_byteorder_helper (void) |
892 | { |
1139 | { |
893 | const uint32_t u = 0x11223344; |
1140 | /* the union code still generates code under pressure in gcc, */ |
894 | return *(unsigned char *)&u; |
1141 | /* but less than using pointers, and always seems to */ |
|
|
1142 | /* successfully return a constant. */ |
|
|
1143 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1144 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1145 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1146 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1147 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1148 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1149 | return 0x44332211; |
|
|
1150 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1151 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1152 | #define ECB_BIG_ENDIAN 1 |
|
|
1153 | return 0x11223344; |
|
|
1154 | #else |
|
|
1155 | union |
|
|
1156 | { |
|
|
1157 | uint8_t c[4]; |
|
|
1158 | uint32_t u; |
|
|
1159 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1160 | return u.u; |
|
|
1161 | #endif |
895 | } |
1162 | } |
896 | |
1163 | |
897 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1164 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
898 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1165 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
899 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1166 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
900 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1167 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
901 | |
1168 | |
902 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1169 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
903 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1170 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
904 | #else |
1171 | #else |
905 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1172 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
906 | #endif |
1173 | #endif |
907 | |
1174 | |
908 | #if __cplusplus |
1175 | #if ECB_CPP |
909 | template<typename T> |
1176 | template<typename T> |
910 | static inline T ecb_div_rd (T val, T div) |
1177 | static inline T ecb_div_rd (T val, T div) |
911 | { |
1178 | { |
912 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1179 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
913 | } |
1180 | } |
… | |
… | |
930 | } |
1197 | } |
931 | #else |
1198 | #else |
932 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1199 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
933 | #endif |
1200 | #endif |
934 | |
1201 | |
|
|
1202 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1203 | ecb_function_ ecb_const uint32_t |
|
|
1204 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1205 | { |
|
|
1206 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1207 | int e = (x >> 10) & 0x001f; |
|
|
1208 | unsigned int m = x & 0x03ff; |
|
|
1209 | |
|
|
1210 | if (ecb_expect_false (e == 31)) |
|
|
1211 | /* infinity or NaN */ |
|
|
1212 | e = 255 - (127 - 15); |
|
|
1213 | else if (ecb_expect_false (!e)) |
|
|
1214 | { |
|
|
1215 | if (ecb_expect_true (!m)) |
|
|
1216 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1217 | e = 0 - (127 - 15); |
|
|
1218 | else |
|
|
1219 | { |
|
|
1220 | /* subnormal, renormalise */ |
|
|
1221 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1222 | |
|
|
1223 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1224 | e -= s - 1; |
|
|
1225 | } |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1229 | e += 127 - 15; |
|
|
1230 | |
|
|
1231 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1235 | ecb_function_ ecb_const uint16_t |
|
|
1236 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1237 | { |
|
|
1238 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1239 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1240 | unsigned int m = x & 0x007fffff; |
|
|
1241 | |
|
|
1242 | x &= 0x7fffffff; |
|
|
1243 | |
|
|
1244 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1245 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1246 | { |
|
|
1247 | /* mantissa round-to-even */ |
|
|
1248 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1249 | |
|
|
1250 | /* handle overflow */ |
|
|
1251 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1252 | { |
|
|
1253 | m >>= 1; |
|
|
1254 | e += 1; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | /* handle large numbers and infinity */ |
|
|
1261 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1262 | return s | 0x7c00; |
|
|
1263 | |
|
|
1264 | /* handle zero, subnormals and small numbers */ |
|
|
1265 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1266 | { |
|
|
1267 | /* zero */ |
|
|
1268 | if (ecb_expect_true (!x)) |
|
|
1269 | return s; |
|
|
1270 | |
|
|
1271 | /* handle subnormals */ |
|
|
1272 | |
|
|
1273 | /* too small, will be zero */ |
|
|
1274 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1275 | return s; |
|
|
1276 | |
|
|
1277 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1278 | |
|
|
1279 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1280 | { |
|
|
1281 | unsigned int bits = 14 - e; |
|
|
1282 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1283 | unsigned int even = (m >> bits) & 1; |
|
|
1284 | |
|
|
1285 | /* if this overflows, we will end up with a normalised number */ |
|
|
1286 | m = (m + half + even) >> bits; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | return s | m; |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1293 | m >>= 13; |
|
|
1294 | |
|
|
1295 | return s | 0x7c00 | m | !m; |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | /*******************************************************************************/ |
|
|
1299 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1300 | |
|
|
1301 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1302 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1303 | #if 0 \ |
|
|
1304 | || __i386 || __i386__ \ |
|
|
1305 | || ECB_GCC_AMD64 \ |
|
|
1306 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1307 | || defined __s390__ || defined __s390x__ \ |
|
|
1308 | || defined __mips__ \ |
|
|
1309 | || defined __alpha__ \ |
|
|
1310 | || defined __hppa__ \ |
|
|
1311 | || defined __ia64__ \ |
|
|
1312 | || defined __m68k__ \ |
|
|
1313 | || defined __m88k__ \ |
|
|
1314 | || defined __sh__ \ |
|
|
1315 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1316 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1317 | || defined __aarch64__ |
|
|
1318 | #define ECB_STDFP 1 |
|
|
1319 | #include <string.h> /* for memcpy */ |
|
|
1320 | #else |
|
|
1321 | #define ECB_STDFP 0 |
|
|
1322 | #endif |
|
|
1323 | |
|
|
1324 | #ifndef ECB_NO_LIBM |
|
|
1325 | |
|
|
1326 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1327 | |
|
|
1328 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1329 | #ifdef INFINITY |
|
|
1330 | #define ECB_INFINITY INFINITY |
|
|
1331 | #else |
|
|
1332 | #define ECB_INFINITY HUGE_VAL |
|
|
1333 | #endif |
|
|
1334 | |
|
|
1335 | #ifdef NAN |
|
|
1336 | #define ECB_NAN NAN |
|
|
1337 | #else |
|
|
1338 | #define ECB_NAN ECB_INFINITY |
|
|
1339 | #endif |
|
|
1340 | |
|
|
1341 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1342 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1343 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1344 | #else |
|
|
1345 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1346 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1347 | #endif |
|
|
1348 | |
|
|
1349 | /* convert a float to ieee single/binary32 */ |
|
|
1350 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1351 | ecb_function_ ecb_const uint32_t |
|
|
1352 | ecb_float_to_binary32 (float x) |
|
|
1353 | { |
|
|
1354 | uint32_t r; |
|
|
1355 | |
|
|
1356 | #if ECB_STDFP |
|
|
1357 | memcpy (&r, &x, 4); |
|
|
1358 | #else |
|
|
1359 | /* slow emulation, works for anything but -0 */ |
|
|
1360 | uint32_t m; |
|
|
1361 | int e; |
|
|
1362 | |
|
|
1363 | if (x == 0e0f ) return 0x00000000U; |
|
|
1364 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1365 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1366 | if (x != x ) return 0x7fbfffffU; |
|
|
1367 | |
|
|
1368 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1369 | |
|
|
1370 | r = m & 0x80000000U; |
|
|
1371 | |
|
|
1372 | if (r) |
|
|
1373 | m = -m; |
|
|
1374 | |
|
|
1375 | if (e <= -126) |
|
|
1376 | { |
|
|
1377 | m &= 0xffffffU; |
|
|
1378 | m >>= (-125 - e); |
|
|
1379 | e = -126; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | r |= (e + 126) << 23; |
|
|
1383 | r |= m & 0x7fffffU; |
|
|
1384 | #endif |
|
|
1385 | |
|
|
1386 | return r; |
|
|
1387 | } |
|
|
1388 | |
|
|
1389 | /* converts an ieee single/binary32 to a float */ |
|
|
1390 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1391 | ecb_function_ ecb_const float |
|
|
1392 | ecb_binary32_to_float (uint32_t x) |
|
|
1393 | { |
|
|
1394 | float r; |
|
|
1395 | |
|
|
1396 | #if ECB_STDFP |
|
|
1397 | memcpy (&r, &x, 4); |
|
|
1398 | #else |
|
|
1399 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1400 | int neg = x >> 31; |
|
|
1401 | int e = (x >> 23) & 0xffU; |
|
|
1402 | |
|
|
1403 | x &= 0x7fffffU; |
|
|
1404 | |
|
|
1405 | if (e) |
|
|
1406 | x |= 0x800000U; |
|
|
1407 | else |
|
|
1408 | e = 1; |
|
|
1409 | |
|
|
1410 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1411 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1412 | |
|
|
1413 | r = neg ? -r : r; |
|
|
1414 | #endif |
|
|
1415 | |
|
|
1416 | return r; |
|
|
1417 | } |
|
|
1418 | |
|
|
1419 | /* convert a double to ieee double/binary64 */ |
|
|
1420 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1421 | ecb_function_ ecb_const uint64_t |
|
|
1422 | ecb_double_to_binary64 (double x) |
|
|
1423 | { |
|
|
1424 | uint64_t r; |
|
|
1425 | |
|
|
1426 | #if ECB_STDFP |
|
|
1427 | memcpy (&r, &x, 8); |
|
|
1428 | #else |
|
|
1429 | /* slow emulation, works for anything but -0 */ |
|
|
1430 | uint64_t m; |
|
|
1431 | int e; |
|
|
1432 | |
|
|
1433 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1434 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1435 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1436 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1437 | |
|
|
1438 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1439 | |
|
|
1440 | r = m & 0x8000000000000000;; |
|
|
1441 | |
|
|
1442 | if (r) |
|
|
1443 | m = -m; |
|
|
1444 | |
|
|
1445 | if (e <= -1022) |
|
|
1446 | { |
|
|
1447 | m &= 0x1fffffffffffffU; |
|
|
1448 | m >>= (-1021 - e); |
|
|
1449 | e = -1022; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1453 | r |= m & 0xfffffffffffffU; |
|
|
1454 | #endif |
|
|
1455 | |
|
|
1456 | return r; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | /* converts an ieee double/binary64 to a double */ |
|
|
1460 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1461 | ecb_function_ ecb_const double |
|
|
1462 | ecb_binary64_to_double (uint64_t x) |
|
|
1463 | { |
|
|
1464 | double r; |
|
|
1465 | |
|
|
1466 | #if ECB_STDFP |
|
|
1467 | memcpy (&r, &x, 8); |
|
|
1468 | #else |
|
|
1469 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1470 | int neg = x >> 63; |
|
|
1471 | int e = (x >> 52) & 0x7ffU; |
|
|
1472 | |
|
|
1473 | x &= 0xfffffffffffffU; |
|
|
1474 | |
|
|
1475 | if (e) |
|
|
1476 | x |= 0x10000000000000U; |
|
|
1477 | else |
|
|
1478 | e = 1; |
|
|
1479 | |
|
|
1480 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1481 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1482 | |
|
|
1483 | r = neg ? -r : r; |
|
|
1484 | #endif |
|
|
1485 | |
|
|
1486 | return r; |
|
|
1487 | } |
|
|
1488 | |
|
|
1489 | /* convert a float to ieee half/binary16 */ |
|
|
1490 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1491 | ecb_function_ ecb_const uint16_t |
|
|
1492 | ecb_float_to_binary16 (float x) |
|
|
1493 | { |
|
|
1494 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | /* convert an ieee half/binary16 to float */ |
|
|
1498 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1499 | ecb_function_ ecb_const float |
|
|
1500 | ecb_binary16_to_float (uint16_t x) |
|
|
1501 | { |
|
|
1502 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1503 | } |
|
|
1504 | |
|
|
1505 | #endif |
|
|
1506 | |
935 | #endif |
1507 | #endif |
936 | |
1508 | |
937 | /* ECB.H END */ |
1509 | /* ECB.H END */ |
938 | |
1510 | |
939 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1511 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
960 | #define inline_size ecb_inline |
1532 | #define inline_size ecb_inline |
961 | |
1533 | |
962 | #if EV_FEATURE_CODE |
1534 | #if EV_FEATURE_CODE |
963 | # define inline_speed ecb_inline |
1535 | # define inline_speed ecb_inline |
964 | #else |
1536 | #else |
965 | # define inline_speed static noinline |
1537 | # define inline_speed noinline static |
966 | #endif |
1538 | #endif |
967 | |
1539 | |
968 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1540 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
969 | |
1541 | |
970 | #if EV_MINPRI == EV_MAXPRI |
1542 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1017 | #else |
1589 | #else |
1018 | |
1590 | |
1019 | #include <float.h> |
1591 | #include <float.h> |
1020 | |
1592 | |
1021 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1593 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1594 | noinline |
1022 | static ev_tstamp noinline |
1595 | static ev_tstamp |
1023 | ev_floor (ev_tstamp v) |
1596 | ev_floor (ev_tstamp v) |
1024 | { |
1597 | { |
1025 | /* the choice of shift factor is not terribly important */ |
1598 | /* the choice of shift factor is not terribly important */ |
1026 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1599 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1600 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1059 | |
1632 | |
1060 | #ifdef __linux |
1633 | #ifdef __linux |
1061 | # include <sys/utsname.h> |
1634 | # include <sys/utsname.h> |
1062 | #endif |
1635 | #endif |
1063 | |
1636 | |
1064 | static unsigned int noinline ecb_cold |
1637 | noinline ecb_cold |
|
|
1638 | static unsigned int |
1065 | ev_linux_version (void) |
1639 | ev_linux_version (void) |
1066 | { |
1640 | { |
1067 | #ifdef __linux |
1641 | #ifdef __linux |
1068 | unsigned int v = 0; |
1642 | unsigned int v = 0; |
1069 | struct utsname buf; |
1643 | struct utsname buf; |
… | |
… | |
1098 | } |
1672 | } |
1099 | |
1673 | |
1100 | /*****************************************************************************/ |
1674 | /*****************************************************************************/ |
1101 | |
1675 | |
1102 | #if EV_AVOID_STDIO |
1676 | #if EV_AVOID_STDIO |
1103 | static void noinline ecb_cold |
1677 | noinline ecb_cold |
|
|
1678 | static void |
1104 | ev_printerr (const char *msg) |
1679 | ev_printerr (const char *msg) |
1105 | { |
1680 | { |
1106 | write (STDERR_FILENO, msg, strlen (msg)); |
1681 | write (STDERR_FILENO, msg, strlen (msg)); |
1107 | } |
1682 | } |
1108 | #endif |
1683 | #endif |
1109 | |
1684 | |
1110 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1685 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
1111 | |
1686 | |
1112 | void ecb_cold |
1687 | ecb_cold |
|
|
1688 | void |
1113 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1689 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
1114 | { |
1690 | { |
1115 | syserr_cb = cb; |
1691 | syserr_cb = cb; |
1116 | } |
1692 | } |
1117 | |
1693 | |
1118 | static void noinline ecb_cold |
1694 | noinline ecb_cold |
|
|
1695 | static void |
1119 | ev_syserr (const char *msg) |
1696 | ev_syserr (const char *msg) |
1120 | { |
1697 | { |
1121 | if (!msg) |
1698 | if (!msg) |
1122 | msg = "(libev) system error"; |
1699 | msg = "(libev) system error"; |
1123 | |
1700 | |
… | |
… | |
1136 | abort (); |
1713 | abort (); |
1137 | } |
1714 | } |
1138 | } |
1715 | } |
1139 | |
1716 | |
1140 | static void * |
1717 | static void * |
1141 | ev_realloc_emul (void *ptr, long size) |
1718 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
1142 | { |
1719 | { |
1143 | #if __GLIBC__ |
|
|
1144 | return realloc (ptr, size); |
|
|
1145 | #else |
|
|
1146 | /* some systems, notably openbsd and darwin, fail to properly |
1720 | /* some systems, notably openbsd and darwin, fail to properly |
1147 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1721 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1148 | * the single unix specification, so work around them here. |
1722 | * the single unix specification, so work around them here. |
|
|
1723 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1724 | * despite documenting it otherwise. |
1149 | */ |
1725 | */ |
1150 | |
1726 | |
1151 | if (size) |
1727 | if (size) |
1152 | return realloc (ptr, size); |
1728 | return realloc (ptr, size); |
1153 | |
1729 | |
1154 | free (ptr); |
1730 | free (ptr); |
1155 | return 0; |
1731 | return 0; |
1156 | #endif |
|
|
1157 | } |
1732 | } |
1158 | |
1733 | |
1159 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1734 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
1160 | |
1735 | |
1161 | void ecb_cold |
1736 | ecb_cold |
|
|
1737 | void |
1162 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1738 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
1163 | { |
1739 | { |
1164 | alloc = cb; |
1740 | alloc = cb; |
1165 | } |
1741 | } |
1166 | |
1742 | |
1167 | inline_speed void * |
1743 | inline_speed void * |
… | |
… | |
1284 | |
1860 | |
1285 | /*****************************************************************************/ |
1861 | /*****************************************************************************/ |
1286 | |
1862 | |
1287 | #ifndef EV_HAVE_EV_TIME |
1863 | #ifndef EV_HAVE_EV_TIME |
1288 | ev_tstamp |
1864 | ev_tstamp |
1289 | ev_time (void) EV_THROW |
1865 | ev_time (void) EV_NOEXCEPT |
1290 | { |
1866 | { |
1291 | #if EV_USE_REALTIME |
1867 | #if EV_USE_REALTIME |
1292 | if (expect_true (have_realtime)) |
1868 | if (expect_true (have_realtime)) |
1293 | { |
1869 | { |
1294 | struct timespec ts; |
1870 | struct timespec ts; |
… | |
… | |
1318 | return ev_time (); |
1894 | return ev_time (); |
1319 | } |
1895 | } |
1320 | |
1896 | |
1321 | #if EV_MULTIPLICITY |
1897 | #if EV_MULTIPLICITY |
1322 | ev_tstamp |
1898 | ev_tstamp |
1323 | ev_now (EV_P) EV_THROW |
1899 | ev_now (EV_P) EV_NOEXCEPT |
1324 | { |
1900 | { |
1325 | return ev_rt_now; |
1901 | return ev_rt_now; |
1326 | } |
1902 | } |
1327 | #endif |
1903 | #endif |
1328 | |
1904 | |
1329 | void |
1905 | void |
1330 | ev_sleep (ev_tstamp delay) EV_THROW |
1906 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
1331 | { |
1907 | { |
1332 | if (delay > 0.) |
1908 | if (delay > 0.) |
1333 | { |
1909 | { |
1334 | #if EV_USE_NANOSLEEP |
1910 | #if EV_USE_NANOSLEEP |
1335 | struct timespec ts; |
1911 | struct timespec ts; |
1336 | |
1912 | |
1337 | EV_TS_SET (ts, delay); |
1913 | EV_TS_SET (ts, delay); |
1338 | nanosleep (&ts, 0); |
1914 | nanosleep (&ts, 0); |
1339 | #elif defined _WIN32 |
1915 | #elif defined _WIN32 |
|
|
1916 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1917 | /* compared to select (µs) or nanosleep (ns) */ |
1340 | Sleep ((unsigned long)(delay * 1e3)); |
1918 | Sleep ((unsigned long)(delay * 1e3)); |
1341 | #else |
1919 | #else |
1342 | struct timeval tv; |
1920 | struct timeval tv; |
1343 | |
1921 | |
1344 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1922 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1375 | } |
1953 | } |
1376 | |
1954 | |
1377 | return ncur; |
1955 | return ncur; |
1378 | } |
1956 | } |
1379 | |
1957 | |
1380 | static void * noinline ecb_cold |
1958 | noinline ecb_cold |
|
|
1959 | static void * |
1381 | array_realloc (int elem, void *base, int *cur, int cnt) |
1960 | array_realloc (int elem, void *base, int *cur, int cnt) |
1382 | { |
1961 | { |
1383 | *cur = array_nextsize (elem, *cur, cnt); |
1962 | *cur = array_nextsize (elem, *cur, cnt); |
1384 | return ev_realloc (base, elem * *cur); |
1963 | return ev_realloc (base, elem * *cur); |
1385 | } |
1964 | } |
… | |
… | |
1388 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1967 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1389 | |
1968 | |
1390 | #define array_needsize(type,base,cur,cnt,init) \ |
1969 | #define array_needsize(type,base,cur,cnt,init) \ |
1391 | if (expect_false ((cnt) > (cur))) \ |
1970 | if (expect_false ((cnt) > (cur))) \ |
1392 | { \ |
1971 | { \ |
1393 | int ecb_unused ocur_ = (cur); \ |
1972 | ecb_unused int ocur_ = (cur); \ |
1394 | (base) = (type *)array_realloc \ |
1973 | (base) = (type *)array_realloc \ |
1395 | (sizeof (type), (base), &(cur), (cnt)); \ |
1974 | (sizeof (type), (base), &(cur), (cnt)); \ |
1396 | init ((base) + (ocur_), (cur) - ocur_); \ |
1975 | init ((base) + (ocur_), (cur) - ocur_); \ |
1397 | } |
1976 | } |
1398 | |
1977 | |
… | |
… | |
1410 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1989 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1411 | |
1990 | |
1412 | /*****************************************************************************/ |
1991 | /*****************************************************************************/ |
1413 | |
1992 | |
1414 | /* dummy callback for pending events */ |
1993 | /* dummy callback for pending events */ |
1415 | static void noinline |
1994 | noinline |
|
|
1995 | static void |
1416 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1996 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1417 | { |
1997 | { |
1418 | } |
1998 | } |
1419 | |
1999 | |
1420 | void noinline |
2000 | noinline |
|
|
2001 | void |
1421 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
2002 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
1422 | { |
2003 | { |
1423 | W w_ = (W)w; |
2004 | W w_ = (W)w; |
1424 | int pri = ABSPRI (w_); |
2005 | int pri = ABSPRI (w_); |
1425 | |
2006 | |
1426 | if (expect_false (w_->pending)) |
2007 | if (expect_false (w_->pending)) |
… | |
… | |
1430 | w_->pending = ++pendingcnt [pri]; |
2011 | w_->pending = ++pendingcnt [pri]; |
1431 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2012 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1432 | pendings [pri][w_->pending - 1].w = w_; |
2013 | pendings [pri][w_->pending - 1].w = w_; |
1433 | pendings [pri][w_->pending - 1].events = revents; |
2014 | pendings [pri][w_->pending - 1].events = revents; |
1434 | } |
2015 | } |
|
|
2016 | |
|
|
2017 | pendingpri = NUMPRI - 1; |
1435 | } |
2018 | } |
1436 | |
2019 | |
1437 | inline_speed void |
2020 | inline_speed void |
1438 | feed_reverse (EV_P_ W w) |
2021 | feed_reverse (EV_P_ W w) |
1439 | { |
2022 | { |
… | |
… | |
1485 | if (expect_true (!anfd->reify)) |
2068 | if (expect_true (!anfd->reify)) |
1486 | fd_event_nocheck (EV_A_ fd, revents); |
2069 | fd_event_nocheck (EV_A_ fd, revents); |
1487 | } |
2070 | } |
1488 | |
2071 | |
1489 | void |
2072 | void |
1490 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
2073 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
1491 | { |
2074 | { |
1492 | if (fd >= 0 && fd < anfdmax) |
2075 | if (fd >= 0 && fd < anfdmax) |
1493 | fd_event_nocheck (EV_A_ fd, revents); |
2076 | fd_event_nocheck (EV_A_ fd, revents); |
1494 | } |
2077 | } |
1495 | |
2078 | |
… | |
… | |
1553 | |
2136 | |
1554 | fdchangecnt = 0; |
2137 | fdchangecnt = 0; |
1555 | } |
2138 | } |
1556 | |
2139 | |
1557 | /* something about the given fd changed */ |
2140 | /* something about the given fd changed */ |
1558 | inline_size void |
2141 | inline_size |
|
|
2142 | void |
1559 | fd_change (EV_P_ int fd, int flags) |
2143 | fd_change (EV_P_ int fd, int flags) |
1560 | { |
2144 | { |
1561 | unsigned char reify = anfds [fd].reify; |
2145 | unsigned char reify = anfds [fd].reify; |
1562 | anfds [fd].reify |= flags; |
2146 | anfds [fd].reify |= flags; |
1563 | |
2147 | |
… | |
… | |
1568 | fdchanges [fdchangecnt - 1] = fd; |
2152 | fdchanges [fdchangecnt - 1] = fd; |
1569 | } |
2153 | } |
1570 | } |
2154 | } |
1571 | |
2155 | |
1572 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2156 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1573 | inline_speed void ecb_cold |
2157 | inline_speed ecb_cold void |
1574 | fd_kill (EV_P_ int fd) |
2158 | fd_kill (EV_P_ int fd) |
1575 | { |
2159 | { |
1576 | ev_io *w; |
2160 | ev_io *w; |
1577 | |
2161 | |
1578 | while ((w = (ev_io *)anfds [fd].head)) |
2162 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1581 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2165 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1582 | } |
2166 | } |
1583 | } |
2167 | } |
1584 | |
2168 | |
1585 | /* check whether the given fd is actually valid, for error recovery */ |
2169 | /* check whether the given fd is actually valid, for error recovery */ |
1586 | inline_size int ecb_cold |
2170 | inline_size ecb_cold int |
1587 | fd_valid (int fd) |
2171 | fd_valid (int fd) |
1588 | { |
2172 | { |
1589 | #ifdef _WIN32 |
2173 | #ifdef _WIN32 |
1590 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2174 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1591 | #else |
2175 | #else |
1592 | return fcntl (fd, F_GETFD) != -1; |
2176 | return fcntl (fd, F_GETFD) != -1; |
1593 | #endif |
2177 | #endif |
1594 | } |
2178 | } |
1595 | |
2179 | |
1596 | /* called on EBADF to verify fds */ |
2180 | /* called on EBADF to verify fds */ |
1597 | static void noinline ecb_cold |
2181 | noinline ecb_cold |
|
|
2182 | static void |
1598 | fd_ebadf (EV_P) |
2183 | fd_ebadf (EV_P) |
1599 | { |
2184 | { |
1600 | int fd; |
2185 | int fd; |
1601 | |
2186 | |
1602 | for (fd = 0; fd < anfdmax; ++fd) |
2187 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1604 | if (!fd_valid (fd) && errno == EBADF) |
2189 | if (!fd_valid (fd) && errno == EBADF) |
1605 | fd_kill (EV_A_ fd); |
2190 | fd_kill (EV_A_ fd); |
1606 | } |
2191 | } |
1607 | |
2192 | |
1608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2193 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1609 | static void noinline ecb_cold |
2194 | noinline ecb_cold |
|
|
2195 | static void |
1610 | fd_enomem (EV_P) |
2196 | fd_enomem (EV_P) |
1611 | { |
2197 | { |
1612 | int fd; |
2198 | int fd; |
1613 | |
2199 | |
1614 | for (fd = anfdmax; fd--; ) |
2200 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1618 | break; |
2204 | break; |
1619 | } |
2205 | } |
1620 | } |
2206 | } |
1621 | |
2207 | |
1622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2208 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1623 | static void noinline |
2209 | noinline |
|
|
2210 | static void |
1624 | fd_rearm_all (EV_P) |
2211 | fd_rearm_all (EV_P) |
1625 | { |
2212 | { |
1626 | int fd; |
2213 | int fd; |
1627 | |
2214 | |
1628 | for (fd = 0; fd < anfdmax; ++fd) |
2215 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1809 | |
2396 | |
1810 | /*****************************************************************************/ |
2397 | /*****************************************************************************/ |
1811 | |
2398 | |
1812 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2399 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1813 | |
2400 | |
1814 | static void noinline ecb_cold |
2401 | noinline ecb_cold |
|
|
2402 | static void |
1815 | evpipe_init (EV_P) |
2403 | evpipe_init (EV_P) |
1816 | { |
2404 | { |
1817 | if (!ev_is_active (&pipe_w)) |
2405 | if (!ev_is_active (&pipe_w)) |
1818 | { |
2406 | { |
|
|
2407 | int fds [2]; |
|
|
2408 | |
1819 | # if EV_USE_EVENTFD |
2409 | # if EV_USE_EVENTFD |
|
|
2410 | fds [0] = -1; |
1820 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2411 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1821 | if (evfd < 0 && errno == EINVAL) |
2412 | if (fds [1] < 0 && errno == EINVAL) |
1822 | evfd = eventfd (0, 0); |
2413 | fds [1] = eventfd (0, 0); |
1823 | |
2414 | |
1824 | if (evfd >= 0) |
2415 | if (fds [1] < 0) |
|
|
2416 | # endif |
1825 | { |
2417 | { |
|
|
2418 | while (pipe (fds)) |
|
|
2419 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2420 | |
|
|
2421 | fd_intern (fds [0]); |
|
|
2422 | } |
|
|
2423 | |
1826 | evpipe [0] = -1; |
2424 | evpipe [0] = fds [0]; |
1827 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2425 | |
1828 | ev_io_set (&pipe_w, evfd, EV_READ); |
2426 | if (evpipe [1] < 0) |
|
|
2427 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2428 | else |
|
|
2429 | { |
|
|
2430 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2431 | /* so that evpipe_write can always rely on its value. */ |
|
|
2432 | /* this branch does not do anything sensible on windows, */ |
|
|
2433 | /* so must not be executed on windows */ |
|
|
2434 | |
|
|
2435 | dup2 (fds [1], evpipe [1]); |
|
|
2436 | close (fds [1]); |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | fd_intern (evpipe [1]); |
|
|
2440 | |
|
|
2441 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2442 | ev_io_start (EV_A_ &pipe_w); |
|
|
2443 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2444 | } |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | inline_speed void |
|
|
2448 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2449 | { |
|
|
2450 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2451 | |
|
|
2452 | if (expect_true (*flag)) |
|
|
2453 | return; |
|
|
2454 | |
|
|
2455 | *flag = 1; |
|
|
2456 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2457 | |
|
|
2458 | pipe_write_skipped = 1; |
|
|
2459 | |
|
|
2460 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2461 | |
|
|
2462 | if (pipe_write_wanted) |
|
|
2463 | { |
|
|
2464 | int old_errno; |
|
|
2465 | |
|
|
2466 | pipe_write_skipped = 0; |
|
|
2467 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2468 | |
|
|
2469 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2470 | |
|
|
2471 | #if EV_USE_EVENTFD |
|
|
2472 | if (evpipe [0] < 0) |
|
|
2473 | { |
|
|
2474 | uint64_t counter = 1; |
|
|
2475 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1829 | } |
2476 | } |
1830 | else |
2477 | else |
1831 | # endif |
2478 | #endif |
1832 | { |
2479 | { |
1833 | while (pipe (evpipe)) |
2480 | #ifdef _WIN32 |
1834 | ev_syserr ("(libev) error creating signal/async pipe"); |
2481 | WSABUF buf; |
1835 | |
2482 | DWORD sent; |
1836 | fd_intern (evpipe [0]); |
2483 | buf.buf = (char *)&buf; |
1837 | fd_intern (evpipe [1]); |
2484 | buf.len = 1; |
1838 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2485 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1839 | } |
2486 | #else |
1840 | |
|
|
1841 | ev_io_start (EV_A_ &pipe_w); |
|
|
1842 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1843 | } |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | inline_speed void |
|
|
1847 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1848 | { |
|
|
1849 | if (expect_true (*flag)) |
|
|
1850 | return; |
|
|
1851 | |
|
|
1852 | *flag = 1; |
|
|
1853 | |
|
|
1854 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1855 | |
|
|
1856 | pipe_write_skipped = 1; |
|
|
1857 | |
|
|
1858 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1859 | |
|
|
1860 | if (pipe_write_wanted) |
|
|
1861 | { |
|
|
1862 | int old_errno; |
|
|
1863 | |
|
|
1864 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1865 | |
|
|
1866 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1867 | |
|
|
1868 | #if EV_USE_EVENTFD |
|
|
1869 | if (evfd >= 0) |
|
|
1870 | { |
|
|
1871 | uint64_t counter = 1; |
|
|
1872 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1873 | } |
|
|
1874 | else |
|
|
1875 | #endif |
|
|
1876 | { |
|
|
1877 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1878 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1879 | /* so when you think this write should be a send instead, please find out */ |
|
|
1880 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1881 | /* tell me. thank you. */ |
|
|
1882 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1883 | /* check the ev documentation on how to use this flag */ |
|
|
1884 | write (evpipe [1], &(evpipe [1]), 1); |
2487 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2488 | #endif |
1885 | } |
2489 | } |
1886 | |
2490 | |
1887 | errno = old_errno; |
2491 | errno = old_errno; |
1888 | } |
2492 | } |
1889 | } |
2493 | } |
… | |
… | |
1896 | int i; |
2500 | int i; |
1897 | |
2501 | |
1898 | if (revents & EV_READ) |
2502 | if (revents & EV_READ) |
1899 | { |
2503 | { |
1900 | #if EV_USE_EVENTFD |
2504 | #if EV_USE_EVENTFD |
1901 | if (evfd >= 0) |
2505 | if (evpipe [0] < 0) |
1902 | { |
2506 | { |
1903 | uint64_t counter; |
2507 | uint64_t counter; |
1904 | read (evfd, &counter, sizeof (uint64_t)); |
2508 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1905 | } |
2509 | } |
1906 | else |
2510 | else |
1907 | #endif |
2511 | #endif |
1908 | { |
2512 | { |
1909 | char dummy; |
2513 | char dummy[4]; |
1910 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2514 | #ifdef _WIN32 |
|
|
2515 | WSABUF buf; |
|
|
2516 | DWORD recvd; |
|
|
2517 | DWORD flags = 0; |
|
|
2518 | buf.buf = dummy; |
|
|
2519 | buf.len = sizeof (dummy); |
|
|
2520 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2521 | #else |
1911 | read (evpipe [0], &dummy, 1); |
2522 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2523 | #endif |
1912 | } |
2524 | } |
1913 | } |
2525 | } |
1914 | |
2526 | |
1915 | pipe_write_skipped = 0; |
2527 | pipe_write_skipped = 0; |
|
|
2528 | |
|
|
2529 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1916 | |
2530 | |
1917 | #if EV_SIGNAL_ENABLE |
2531 | #if EV_SIGNAL_ENABLE |
1918 | if (sig_pending) |
2532 | if (sig_pending) |
1919 | { |
2533 | { |
1920 | sig_pending = 0; |
2534 | sig_pending = 0; |
|
|
2535 | |
|
|
2536 | ECB_MEMORY_FENCE; |
1921 | |
2537 | |
1922 | for (i = EV_NSIG - 1; i--; ) |
2538 | for (i = EV_NSIG - 1; i--; ) |
1923 | if (expect_false (signals [i].pending)) |
2539 | if (expect_false (signals [i].pending)) |
1924 | ev_feed_signal_event (EV_A_ i + 1); |
2540 | ev_feed_signal_event (EV_A_ i + 1); |
1925 | } |
2541 | } |
… | |
… | |
1927 | |
2543 | |
1928 | #if EV_ASYNC_ENABLE |
2544 | #if EV_ASYNC_ENABLE |
1929 | if (async_pending) |
2545 | if (async_pending) |
1930 | { |
2546 | { |
1931 | async_pending = 0; |
2547 | async_pending = 0; |
|
|
2548 | |
|
|
2549 | ECB_MEMORY_FENCE; |
1932 | |
2550 | |
1933 | for (i = asynccnt; i--; ) |
2551 | for (i = asynccnt; i--; ) |
1934 | if (asyncs [i]->sent) |
2552 | if (asyncs [i]->sent) |
1935 | { |
2553 | { |
1936 | asyncs [i]->sent = 0; |
2554 | asyncs [i]->sent = 0; |
|
|
2555 | ECB_MEMORY_FENCE_RELEASE; |
1937 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2556 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1938 | } |
2557 | } |
1939 | } |
2558 | } |
1940 | #endif |
2559 | #endif |
1941 | } |
2560 | } |
1942 | |
2561 | |
1943 | /*****************************************************************************/ |
2562 | /*****************************************************************************/ |
1944 | |
2563 | |
1945 | void |
2564 | void |
1946 | ev_feed_signal (int signum) EV_THROW |
2565 | ev_feed_signal (int signum) EV_NOEXCEPT |
1947 | { |
2566 | { |
1948 | #if EV_MULTIPLICITY |
2567 | #if EV_MULTIPLICITY |
|
|
2568 | EV_P; |
|
|
2569 | ECB_MEMORY_FENCE_ACQUIRE; |
1949 | EV_P = signals [signum - 1].loop; |
2570 | EV_A = signals [signum - 1].loop; |
1950 | |
2571 | |
1951 | if (!EV_A) |
2572 | if (!EV_A) |
1952 | return; |
2573 | return; |
1953 | #endif |
2574 | #endif |
1954 | |
2575 | |
1955 | if (!ev_active (&pipe_w)) |
|
|
1956 | return; |
|
|
1957 | |
|
|
1958 | signals [signum - 1].pending = 1; |
2576 | signals [signum - 1].pending = 1; |
1959 | evpipe_write (EV_A_ &sig_pending); |
2577 | evpipe_write (EV_A_ &sig_pending); |
1960 | } |
2578 | } |
1961 | |
2579 | |
1962 | static void |
2580 | static void |
… | |
… | |
1967 | #endif |
2585 | #endif |
1968 | |
2586 | |
1969 | ev_feed_signal (signum); |
2587 | ev_feed_signal (signum); |
1970 | } |
2588 | } |
1971 | |
2589 | |
1972 | void noinline |
2590 | noinline |
|
|
2591 | void |
1973 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2592 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
1974 | { |
2593 | { |
1975 | WL w; |
2594 | WL w; |
1976 | |
2595 | |
1977 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2596 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1978 | return; |
2597 | return; |
1979 | |
2598 | |
1980 | --signum; |
2599 | --signum; |
1981 | |
2600 | |
1982 | #if EV_MULTIPLICITY |
2601 | #if EV_MULTIPLICITY |
… | |
… | |
1986 | if (expect_false (signals [signum].loop != EV_A)) |
2605 | if (expect_false (signals [signum].loop != EV_A)) |
1987 | return; |
2606 | return; |
1988 | #endif |
2607 | #endif |
1989 | |
2608 | |
1990 | signals [signum].pending = 0; |
2609 | signals [signum].pending = 0; |
|
|
2610 | ECB_MEMORY_FENCE_RELEASE; |
1991 | |
2611 | |
1992 | for (w = signals [signum].head; w; w = w->next) |
2612 | for (w = signals [signum].head; w; w = w->next) |
1993 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2613 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1994 | } |
2614 | } |
1995 | |
2615 | |
… | |
… | |
2093 | #endif |
2713 | #endif |
2094 | #if EV_USE_SELECT |
2714 | #if EV_USE_SELECT |
2095 | # include "ev_select.c" |
2715 | # include "ev_select.c" |
2096 | #endif |
2716 | #endif |
2097 | |
2717 | |
2098 | int ecb_cold |
2718 | ecb_cold int |
2099 | ev_version_major (void) EV_THROW |
2719 | ev_version_major (void) EV_NOEXCEPT |
2100 | { |
2720 | { |
2101 | return EV_VERSION_MAJOR; |
2721 | return EV_VERSION_MAJOR; |
2102 | } |
2722 | } |
2103 | |
2723 | |
2104 | int ecb_cold |
2724 | ecb_cold int |
2105 | ev_version_minor (void) EV_THROW |
2725 | ev_version_minor (void) EV_NOEXCEPT |
2106 | { |
2726 | { |
2107 | return EV_VERSION_MINOR; |
2727 | return EV_VERSION_MINOR; |
2108 | } |
2728 | } |
2109 | |
2729 | |
2110 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2730 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2111 | int inline_size ecb_cold |
2731 | inline_size ecb_cold int |
2112 | enable_secure (void) |
2732 | enable_secure (void) |
2113 | { |
2733 | { |
2114 | #ifdef _WIN32 |
2734 | #ifdef _WIN32 |
2115 | return 0; |
2735 | return 0; |
2116 | #else |
2736 | #else |
2117 | return getuid () != geteuid () |
2737 | return getuid () != geteuid () |
2118 | || getgid () != getegid (); |
2738 | || getgid () != getegid (); |
2119 | #endif |
2739 | #endif |
2120 | } |
2740 | } |
2121 | |
2741 | |
2122 | unsigned int ecb_cold |
2742 | ecb_cold |
|
|
2743 | unsigned int |
2123 | ev_supported_backends (void) EV_THROW |
2744 | ev_supported_backends (void) EV_NOEXCEPT |
2124 | { |
2745 | { |
2125 | unsigned int flags = 0; |
2746 | unsigned int flags = 0; |
2126 | |
2747 | |
2127 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2748 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2128 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2749 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
2131 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2752 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2132 | |
2753 | |
2133 | return flags; |
2754 | return flags; |
2134 | } |
2755 | } |
2135 | |
2756 | |
2136 | unsigned int ecb_cold |
2757 | ecb_cold |
|
|
2758 | unsigned int |
2137 | ev_recommended_backends (void) EV_THROW |
2759 | ev_recommended_backends (void) EV_NOEXCEPT |
2138 | { |
2760 | { |
2139 | unsigned int flags = ev_supported_backends (); |
2761 | unsigned int flags = ev_supported_backends (); |
2140 | |
2762 | |
2141 | #ifndef __NetBSD__ |
2763 | #ifndef __NetBSD__ |
2142 | /* kqueue is borked on everything but netbsd apparently */ |
2764 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
2153 | #endif |
2775 | #endif |
2154 | |
2776 | |
2155 | return flags; |
2777 | return flags; |
2156 | } |
2778 | } |
2157 | |
2779 | |
2158 | unsigned int ecb_cold |
2780 | ecb_cold |
|
|
2781 | unsigned int |
2159 | ev_embeddable_backends (void) EV_THROW |
2782 | ev_embeddable_backends (void) EV_NOEXCEPT |
2160 | { |
2783 | { |
2161 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2784 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2162 | |
2785 | |
2163 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2786 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2164 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2787 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
2166 | |
2789 | |
2167 | return flags; |
2790 | return flags; |
2168 | } |
2791 | } |
2169 | |
2792 | |
2170 | unsigned int |
2793 | unsigned int |
2171 | ev_backend (EV_P) EV_THROW |
2794 | ev_backend (EV_P) EV_NOEXCEPT |
2172 | { |
2795 | { |
2173 | return backend; |
2796 | return backend; |
2174 | } |
2797 | } |
2175 | |
2798 | |
2176 | #if EV_FEATURE_API |
2799 | #if EV_FEATURE_API |
2177 | unsigned int |
2800 | unsigned int |
2178 | ev_iteration (EV_P) EV_THROW |
2801 | ev_iteration (EV_P) EV_NOEXCEPT |
2179 | { |
2802 | { |
2180 | return loop_count; |
2803 | return loop_count; |
2181 | } |
2804 | } |
2182 | |
2805 | |
2183 | unsigned int |
2806 | unsigned int |
2184 | ev_depth (EV_P) EV_THROW |
2807 | ev_depth (EV_P) EV_NOEXCEPT |
2185 | { |
2808 | { |
2186 | return loop_depth; |
2809 | return loop_depth; |
2187 | } |
2810 | } |
2188 | |
2811 | |
2189 | void |
2812 | void |
2190 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2813 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2191 | { |
2814 | { |
2192 | io_blocktime = interval; |
2815 | io_blocktime = interval; |
2193 | } |
2816 | } |
2194 | |
2817 | |
2195 | void |
2818 | void |
2196 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
2819 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
2197 | { |
2820 | { |
2198 | timeout_blocktime = interval; |
2821 | timeout_blocktime = interval; |
2199 | } |
2822 | } |
2200 | |
2823 | |
2201 | void |
2824 | void |
2202 | ev_set_userdata (EV_P_ void *data) EV_THROW |
2825 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
2203 | { |
2826 | { |
2204 | userdata = data; |
2827 | userdata = data; |
2205 | } |
2828 | } |
2206 | |
2829 | |
2207 | void * |
2830 | void * |
2208 | ev_userdata (EV_P) EV_THROW |
2831 | ev_userdata (EV_P) EV_NOEXCEPT |
2209 | { |
2832 | { |
2210 | return userdata; |
2833 | return userdata; |
2211 | } |
2834 | } |
2212 | |
2835 | |
2213 | void |
2836 | void |
2214 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2837 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
2215 | { |
2838 | { |
2216 | invoke_cb = invoke_pending_cb; |
2839 | invoke_cb = invoke_pending_cb; |
2217 | } |
2840 | } |
2218 | |
2841 | |
2219 | void |
2842 | void |
2220 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) EV_THROW |
2843 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
2221 | { |
2844 | { |
2222 | release_cb = release; |
2845 | release_cb = release; |
2223 | acquire_cb = acquire; |
2846 | acquire_cb = acquire; |
2224 | } |
2847 | } |
2225 | #endif |
2848 | #endif |
2226 | |
2849 | |
2227 | /* initialise a loop structure, must be zero-initialised */ |
2850 | /* initialise a loop structure, must be zero-initialised */ |
2228 | static void noinline ecb_cold |
2851 | noinline ecb_cold |
|
|
2852 | static void |
2229 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2853 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
2230 | { |
2854 | { |
2231 | if (!backend) |
2855 | if (!backend) |
2232 | { |
2856 | { |
2233 | origflags = flags; |
2857 | origflags = flags; |
2234 | |
2858 | |
… | |
… | |
2279 | #if EV_ASYNC_ENABLE |
2903 | #if EV_ASYNC_ENABLE |
2280 | async_pending = 0; |
2904 | async_pending = 0; |
2281 | #endif |
2905 | #endif |
2282 | pipe_write_skipped = 0; |
2906 | pipe_write_skipped = 0; |
2283 | pipe_write_wanted = 0; |
2907 | pipe_write_wanted = 0; |
|
|
2908 | evpipe [0] = -1; |
|
|
2909 | evpipe [1] = -1; |
2284 | #if EV_USE_INOTIFY |
2910 | #if EV_USE_INOTIFY |
2285 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2911 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2286 | #endif |
2912 | #endif |
2287 | #if EV_USE_SIGNALFD |
2913 | #if EV_USE_SIGNALFD |
2288 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2914 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2318 | #endif |
2944 | #endif |
2319 | } |
2945 | } |
2320 | } |
2946 | } |
2321 | |
2947 | |
2322 | /* free up a loop structure */ |
2948 | /* free up a loop structure */ |
2323 | void ecb_cold |
2949 | ecb_cold |
|
|
2950 | void |
2324 | ev_loop_destroy (EV_P) EV_THROW |
2951 | ev_loop_destroy (EV_P) |
2325 | { |
2952 | { |
2326 | int i; |
2953 | int i; |
2327 | |
2954 | |
2328 | #if EV_MULTIPLICITY |
2955 | #if EV_MULTIPLICITY |
2329 | /* mimic free (0) */ |
2956 | /* mimic free (0) */ |
… | |
… | |
2339 | EV_INVOKE_PENDING; |
2966 | EV_INVOKE_PENDING; |
2340 | } |
2967 | } |
2341 | #endif |
2968 | #endif |
2342 | |
2969 | |
2343 | #if EV_CHILD_ENABLE |
2970 | #if EV_CHILD_ENABLE |
2344 | if (ev_is_active (&childev)) |
2971 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2345 | { |
2972 | { |
2346 | ev_ref (EV_A); /* child watcher */ |
2973 | ev_ref (EV_A); /* child watcher */ |
2347 | ev_signal_stop (EV_A_ &childev); |
2974 | ev_signal_stop (EV_A_ &childev); |
2348 | } |
2975 | } |
2349 | #endif |
2976 | #endif |
… | |
… | |
2351 | if (ev_is_active (&pipe_w)) |
2978 | if (ev_is_active (&pipe_w)) |
2352 | { |
2979 | { |
2353 | /*ev_ref (EV_A);*/ |
2980 | /*ev_ref (EV_A);*/ |
2354 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2981 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2355 | |
2982 | |
2356 | #if EV_USE_EVENTFD |
|
|
2357 | if (evfd >= 0) |
|
|
2358 | close (evfd); |
|
|
2359 | #endif |
|
|
2360 | |
|
|
2361 | if (evpipe [0] >= 0) |
|
|
2362 | { |
|
|
2363 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2983 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2364 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2984 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2365 | } |
|
|
2366 | } |
2985 | } |
2367 | |
2986 | |
2368 | #if EV_USE_SIGNALFD |
2987 | #if EV_USE_SIGNALFD |
2369 | if (ev_is_active (&sigfd_w)) |
2988 | if (ev_is_active (&sigfd_w)) |
2370 | close (sigfd); |
2989 | close (sigfd); |
… | |
… | |
2456 | #endif |
3075 | #endif |
2457 | #if EV_USE_INOTIFY |
3076 | #if EV_USE_INOTIFY |
2458 | infy_fork (EV_A); |
3077 | infy_fork (EV_A); |
2459 | #endif |
3078 | #endif |
2460 | |
3079 | |
|
|
3080 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2461 | if (ev_is_active (&pipe_w)) |
3081 | if (ev_is_active (&pipe_w) && postfork != 2) |
2462 | { |
3082 | { |
2463 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3083 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2464 | |
3084 | |
2465 | ev_ref (EV_A); |
3085 | ev_ref (EV_A); |
2466 | ev_io_stop (EV_A_ &pipe_w); |
3086 | ev_io_stop (EV_A_ &pipe_w); |
2467 | |
3087 | |
2468 | #if EV_USE_EVENTFD |
|
|
2469 | if (evfd >= 0) |
|
|
2470 | close (evfd); |
|
|
2471 | #endif |
|
|
2472 | |
|
|
2473 | if (evpipe [0] >= 0) |
3088 | if (evpipe [0] >= 0) |
2474 | { |
|
|
2475 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3089 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2476 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2477 | } |
|
|
2478 | |
3090 | |
2479 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2480 | evpipe_init (EV_A); |
3091 | evpipe_init (EV_A); |
2481 | /* now iterate over everything, in case we missed something */ |
3092 | /* iterate over everything, in case we missed something before */ |
2482 | pipecb (EV_A_ &pipe_w, EV_READ); |
3093 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2483 | #endif |
|
|
2484 | } |
3094 | } |
|
|
3095 | #endif |
2485 | |
3096 | |
2486 | postfork = 0; |
3097 | postfork = 0; |
2487 | } |
3098 | } |
2488 | |
3099 | |
2489 | #if EV_MULTIPLICITY |
3100 | #if EV_MULTIPLICITY |
2490 | |
3101 | |
|
|
3102 | ecb_cold |
2491 | struct ev_loop * ecb_cold |
3103 | struct ev_loop * |
2492 | ev_loop_new (unsigned int flags) EV_THROW |
3104 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
2493 | { |
3105 | { |
2494 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3106 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2495 | |
3107 | |
2496 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3108 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2497 | loop_init (EV_A_ flags); |
3109 | loop_init (EV_A_ flags); |
… | |
… | |
2504 | } |
3116 | } |
2505 | |
3117 | |
2506 | #endif /* multiplicity */ |
3118 | #endif /* multiplicity */ |
2507 | |
3119 | |
2508 | #if EV_VERIFY |
3120 | #if EV_VERIFY |
2509 | static void noinline ecb_cold |
3121 | noinline ecb_cold |
|
|
3122 | static void |
2510 | verify_watcher (EV_P_ W w) |
3123 | verify_watcher (EV_P_ W w) |
2511 | { |
3124 | { |
2512 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3125 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2513 | |
3126 | |
2514 | if (w->pending) |
3127 | if (w->pending) |
2515 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3128 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2516 | } |
3129 | } |
2517 | |
3130 | |
2518 | static void noinline ecb_cold |
3131 | noinline ecb_cold |
|
|
3132 | static void |
2519 | verify_heap (EV_P_ ANHE *heap, int N) |
3133 | verify_heap (EV_P_ ANHE *heap, int N) |
2520 | { |
3134 | { |
2521 | int i; |
3135 | int i; |
2522 | |
3136 | |
2523 | for (i = HEAP0; i < N + HEAP0; ++i) |
3137 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2528 | |
3142 | |
2529 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3143 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2530 | } |
3144 | } |
2531 | } |
3145 | } |
2532 | |
3146 | |
2533 | static void noinline ecb_cold |
3147 | noinline ecb_cold |
|
|
3148 | static void |
2534 | array_verify (EV_P_ W *ws, int cnt) |
3149 | array_verify (EV_P_ W *ws, int cnt) |
2535 | { |
3150 | { |
2536 | while (cnt--) |
3151 | while (cnt--) |
2537 | { |
3152 | { |
2538 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3153 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2541 | } |
3156 | } |
2542 | #endif |
3157 | #endif |
2543 | |
3158 | |
2544 | #if EV_FEATURE_API |
3159 | #if EV_FEATURE_API |
2545 | void ecb_cold |
3160 | void ecb_cold |
2546 | ev_verify (EV_P) EV_THROW |
3161 | ev_verify (EV_P) EV_NOEXCEPT |
2547 | { |
3162 | { |
2548 | #if EV_VERIFY |
3163 | #if EV_VERIFY |
2549 | int i; |
3164 | int i; |
2550 | WL w; |
3165 | WL w, w2; |
2551 | |
3166 | |
2552 | assert (activecnt >= -1); |
3167 | assert (activecnt >= -1); |
2553 | |
3168 | |
2554 | assert (fdchangemax >= fdchangecnt); |
3169 | assert (fdchangemax >= fdchangecnt); |
2555 | for (i = 0; i < fdchangecnt; ++i) |
3170 | for (i = 0; i < fdchangecnt; ++i) |
2556 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3171 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2557 | |
3172 | |
2558 | assert (anfdmax >= 0); |
3173 | assert (anfdmax >= 0); |
2559 | for (i = 0; i < anfdmax; ++i) |
3174 | for (i = 0; i < anfdmax; ++i) |
|
|
3175 | { |
|
|
3176 | int j = 0; |
|
|
3177 | |
2560 | for (w = anfds [i].head; w; w = w->next) |
3178 | for (w = w2 = anfds [i].head; w; w = w->next) |
2561 | { |
3179 | { |
2562 | verify_watcher (EV_A_ (W)w); |
3180 | verify_watcher (EV_A_ (W)w); |
|
|
3181 | |
|
|
3182 | if (j++ & 1) |
|
|
3183 | { |
|
|
3184 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3185 | w2 = w2->next; |
|
|
3186 | } |
|
|
3187 | |
2563 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3188 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2564 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3189 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2565 | } |
3190 | } |
|
|
3191 | } |
2566 | |
3192 | |
2567 | assert (timermax >= timercnt); |
3193 | assert (timermax >= timercnt); |
2568 | verify_heap (EV_A_ timers, timercnt); |
3194 | verify_heap (EV_A_ timers, timercnt); |
2569 | |
3195 | |
2570 | #if EV_PERIODIC_ENABLE |
3196 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2616 | #endif |
3242 | #endif |
2617 | } |
3243 | } |
2618 | #endif |
3244 | #endif |
2619 | |
3245 | |
2620 | #if EV_MULTIPLICITY |
3246 | #if EV_MULTIPLICITY |
|
|
3247 | ecb_cold |
2621 | struct ev_loop * ecb_cold |
3248 | struct ev_loop * |
2622 | #else |
3249 | #else |
2623 | int |
3250 | int |
2624 | #endif |
3251 | #endif |
2625 | ev_default_loop (unsigned int flags) EV_THROW |
3252 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
2626 | { |
3253 | { |
2627 | if (!ev_default_loop_ptr) |
3254 | if (!ev_default_loop_ptr) |
2628 | { |
3255 | { |
2629 | #if EV_MULTIPLICITY |
3256 | #if EV_MULTIPLICITY |
2630 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3257 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2649 | |
3276 | |
2650 | return ev_default_loop_ptr; |
3277 | return ev_default_loop_ptr; |
2651 | } |
3278 | } |
2652 | |
3279 | |
2653 | void |
3280 | void |
2654 | ev_loop_fork (EV_P) EV_THROW |
3281 | ev_loop_fork (EV_P) EV_NOEXCEPT |
2655 | { |
3282 | { |
2656 | postfork = 1; /* must be in line with ev_default_fork */ |
3283 | postfork = 1; |
2657 | } |
3284 | } |
2658 | |
3285 | |
2659 | /*****************************************************************************/ |
3286 | /*****************************************************************************/ |
2660 | |
3287 | |
2661 | void |
3288 | void |
… | |
… | |
2663 | { |
3290 | { |
2664 | EV_CB_INVOKE ((W)w, revents); |
3291 | EV_CB_INVOKE ((W)w, revents); |
2665 | } |
3292 | } |
2666 | |
3293 | |
2667 | unsigned int |
3294 | unsigned int |
2668 | ev_pending_count (EV_P) EV_THROW |
3295 | ev_pending_count (EV_P) EV_NOEXCEPT |
2669 | { |
3296 | { |
2670 | int pri; |
3297 | int pri; |
2671 | unsigned int count = 0; |
3298 | unsigned int count = 0; |
2672 | |
3299 | |
2673 | for (pri = NUMPRI; pri--; ) |
3300 | for (pri = NUMPRI; pri--; ) |
2674 | count += pendingcnt [pri]; |
3301 | count += pendingcnt [pri]; |
2675 | |
3302 | |
2676 | return count; |
3303 | return count; |
2677 | } |
3304 | } |
2678 | |
3305 | |
2679 | void noinline |
3306 | noinline |
|
|
3307 | void |
2680 | ev_invoke_pending (EV_P) |
3308 | ev_invoke_pending (EV_P) |
2681 | { |
3309 | { |
2682 | int pri; |
3310 | pendingpri = NUMPRI; |
2683 | |
3311 | |
2684 | for (pri = NUMPRI; pri--; ) |
3312 | do |
|
|
3313 | { |
|
|
3314 | --pendingpri; |
|
|
3315 | |
|
|
3316 | /* pendingpri possibly gets modified in the inner loop */ |
2685 | while (pendingcnt [pri]) |
3317 | while (pendingcnt [pendingpri]) |
2686 | { |
3318 | { |
2687 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3319 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2688 | |
3320 | |
2689 | p->w->pending = 0; |
3321 | p->w->pending = 0; |
2690 | EV_CB_INVOKE (p->w, p->events); |
3322 | EV_CB_INVOKE (p->w, p->events); |
2691 | EV_FREQUENT_CHECK; |
3323 | EV_FREQUENT_CHECK; |
2692 | } |
3324 | } |
|
|
3325 | } |
|
|
3326 | while (pendingpri); |
2693 | } |
3327 | } |
2694 | |
3328 | |
2695 | #if EV_IDLE_ENABLE |
3329 | #if EV_IDLE_ENABLE |
2696 | /* make idle watchers pending. this handles the "call-idle */ |
3330 | /* make idle watchers pending. this handles the "call-idle */ |
2697 | /* only when higher priorities are idle" logic */ |
3331 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2755 | } |
3389 | } |
2756 | } |
3390 | } |
2757 | |
3391 | |
2758 | #if EV_PERIODIC_ENABLE |
3392 | #if EV_PERIODIC_ENABLE |
2759 | |
3393 | |
2760 | static void noinline |
3394 | noinline |
|
|
3395 | static void |
2761 | periodic_recalc (EV_P_ ev_periodic *w) |
3396 | periodic_recalc (EV_P_ ev_periodic *w) |
2762 | { |
3397 | { |
2763 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3398 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2764 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3399 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2765 | |
3400 | |
… | |
… | |
2787 | { |
3422 | { |
2788 | EV_FREQUENT_CHECK; |
3423 | EV_FREQUENT_CHECK; |
2789 | |
3424 | |
2790 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3425 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2791 | { |
3426 | { |
2792 | int feed_count = 0; |
|
|
2793 | |
|
|
2794 | do |
3427 | do |
2795 | { |
3428 | { |
2796 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3429 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2797 | |
3430 | |
2798 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3431 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2825 | } |
3458 | } |
2826 | } |
3459 | } |
2827 | |
3460 | |
2828 | /* simply recalculate all periodics */ |
3461 | /* simply recalculate all periodics */ |
2829 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3462 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2830 | static void noinline ecb_cold |
3463 | noinline ecb_cold |
|
|
3464 | static void |
2831 | periodics_reschedule (EV_P) |
3465 | periodics_reschedule (EV_P) |
2832 | { |
3466 | { |
2833 | int i; |
3467 | int i; |
2834 | |
3468 | |
2835 | /* adjust periodics after time jump */ |
3469 | /* adjust periodics after time jump */ |
… | |
… | |
2848 | reheap (periodics, periodiccnt); |
3482 | reheap (periodics, periodiccnt); |
2849 | } |
3483 | } |
2850 | #endif |
3484 | #endif |
2851 | |
3485 | |
2852 | /* adjust all timers by a given offset */ |
3486 | /* adjust all timers by a given offset */ |
2853 | static void noinline ecb_cold |
3487 | noinline ecb_cold |
|
|
3488 | static void |
2854 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3489 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2855 | { |
3490 | { |
2856 | int i; |
3491 | int i; |
2857 | |
3492 | |
2858 | for (i = 0; i < timercnt; ++i) |
3493 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3057 | backend_poll (EV_A_ waittime); |
3692 | backend_poll (EV_A_ waittime); |
3058 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3693 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3059 | |
3694 | |
3060 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3695 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3061 | |
3696 | |
|
|
3697 | ECB_MEMORY_FENCE_ACQUIRE; |
3062 | if (pipe_write_skipped) |
3698 | if (pipe_write_skipped) |
3063 | { |
3699 | { |
3064 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3700 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3065 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3701 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3066 | } |
3702 | } |
… | |
… | |
3104 | |
3740 | |
3105 | return activecnt; |
3741 | return activecnt; |
3106 | } |
3742 | } |
3107 | |
3743 | |
3108 | void |
3744 | void |
3109 | ev_break (EV_P_ int how) EV_THROW |
3745 | ev_break (EV_P_ int how) EV_NOEXCEPT |
3110 | { |
3746 | { |
3111 | loop_done = how; |
3747 | loop_done = how; |
3112 | } |
3748 | } |
3113 | |
3749 | |
3114 | void |
3750 | void |
3115 | ev_ref (EV_P) EV_THROW |
3751 | ev_ref (EV_P) EV_NOEXCEPT |
3116 | { |
3752 | { |
3117 | ++activecnt; |
3753 | ++activecnt; |
3118 | } |
3754 | } |
3119 | |
3755 | |
3120 | void |
3756 | void |
3121 | ev_unref (EV_P) EV_THROW |
3757 | ev_unref (EV_P) EV_NOEXCEPT |
3122 | { |
3758 | { |
3123 | --activecnt; |
3759 | --activecnt; |
3124 | } |
3760 | } |
3125 | |
3761 | |
3126 | void |
3762 | void |
3127 | ev_now_update (EV_P) EV_THROW |
3763 | ev_now_update (EV_P) EV_NOEXCEPT |
3128 | { |
3764 | { |
3129 | time_update (EV_A_ 1e100); |
3765 | time_update (EV_A_ 1e100); |
3130 | } |
3766 | } |
3131 | |
3767 | |
3132 | void |
3768 | void |
3133 | ev_suspend (EV_P) EV_THROW |
3769 | ev_suspend (EV_P) EV_NOEXCEPT |
3134 | { |
3770 | { |
3135 | ev_now_update (EV_A); |
3771 | ev_now_update (EV_A); |
3136 | } |
3772 | } |
3137 | |
3773 | |
3138 | void |
3774 | void |
3139 | ev_resume (EV_P) EV_THROW |
3775 | ev_resume (EV_P) EV_NOEXCEPT |
3140 | { |
3776 | { |
3141 | ev_tstamp mn_prev = mn_now; |
3777 | ev_tstamp mn_prev = mn_now; |
3142 | |
3778 | |
3143 | ev_now_update (EV_A); |
3779 | ev_now_update (EV_A); |
3144 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3780 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
3183 | w->pending = 0; |
3819 | w->pending = 0; |
3184 | } |
3820 | } |
3185 | } |
3821 | } |
3186 | |
3822 | |
3187 | int |
3823 | int |
3188 | ev_clear_pending (EV_P_ void *w) EV_THROW |
3824 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
3189 | { |
3825 | { |
3190 | W w_ = (W)w; |
3826 | W w_ = (W)w; |
3191 | int pending = w_->pending; |
3827 | int pending = w_->pending; |
3192 | |
3828 | |
3193 | if (expect_true (pending)) |
3829 | if (expect_true (pending)) |
… | |
… | |
3225 | w->active = 0; |
3861 | w->active = 0; |
3226 | } |
3862 | } |
3227 | |
3863 | |
3228 | /*****************************************************************************/ |
3864 | /*****************************************************************************/ |
3229 | |
3865 | |
3230 | void noinline |
3866 | noinline |
|
|
3867 | void |
3231 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3868 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
3232 | { |
3869 | { |
3233 | int fd = w->fd; |
3870 | int fd = w->fd; |
3234 | |
3871 | |
3235 | if (expect_false (ev_is_active (w))) |
3872 | if (expect_false (ev_is_active (w))) |
3236 | return; |
3873 | return; |
… | |
… | |
3242 | |
3879 | |
3243 | ev_start (EV_A_ (W)w, 1); |
3880 | ev_start (EV_A_ (W)w, 1); |
3244 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3881 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3245 | wlist_add (&anfds[fd].head, (WL)w); |
3882 | wlist_add (&anfds[fd].head, (WL)w); |
3246 | |
3883 | |
|
|
3884 | /* common bug, apparently */ |
|
|
3885 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3886 | |
3247 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3887 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3248 | w->events &= ~EV__IOFDSET; |
3888 | w->events &= ~EV__IOFDSET; |
3249 | |
3889 | |
3250 | EV_FREQUENT_CHECK; |
3890 | EV_FREQUENT_CHECK; |
3251 | } |
3891 | } |
3252 | |
3892 | |
3253 | void noinline |
3893 | noinline |
|
|
3894 | void |
3254 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3895 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
3255 | { |
3896 | { |
3256 | clear_pending (EV_A_ (W)w); |
3897 | clear_pending (EV_A_ (W)w); |
3257 | if (expect_false (!ev_is_active (w))) |
3898 | if (expect_false (!ev_is_active (w))) |
3258 | return; |
3899 | return; |
3259 | |
3900 | |
… | |
… | |
3267 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3908 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3268 | |
3909 | |
3269 | EV_FREQUENT_CHECK; |
3910 | EV_FREQUENT_CHECK; |
3270 | } |
3911 | } |
3271 | |
3912 | |
3272 | void noinline |
3913 | noinline |
|
|
3914 | void |
3273 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3915 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
3274 | { |
3916 | { |
3275 | if (expect_false (ev_is_active (w))) |
3917 | if (expect_false (ev_is_active (w))) |
3276 | return; |
3918 | return; |
3277 | |
3919 | |
3278 | ev_at (w) += mn_now; |
3920 | ev_at (w) += mn_now; |
… | |
… | |
3291 | EV_FREQUENT_CHECK; |
3933 | EV_FREQUENT_CHECK; |
3292 | |
3934 | |
3293 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3935 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3294 | } |
3936 | } |
3295 | |
3937 | |
3296 | void noinline |
3938 | noinline |
|
|
3939 | void |
3297 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3940 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
3298 | { |
3941 | { |
3299 | clear_pending (EV_A_ (W)w); |
3942 | clear_pending (EV_A_ (W)w); |
3300 | if (expect_false (!ev_is_active (w))) |
3943 | if (expect_false (!ev_is_active (w))) |
3301 | return; |
3944 | return; |
3302 | |
3945 | |
… | |
… | |
3321 | ev_stop (EV_A_ (W)w); |
3964 | ev_stop (EV_A_ (W)w); |
3322 | |
3965 | |
3323 | EV_FREQUENT_CHECK; |
3966 | EV_FREQUENT_CHECK; |
3324 | } |
3967 | } |
3325 | |
3968 | |
3326 | void noinline |
3969 | noinline |
|
|
3970 | void |
3327 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3971 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
3328 | { |
3972 | { |
3329 | EV_FREQUENT_CHECK; |
3973 | EV_FREQUENT_CHECK; |
3330 | |
3974 | |
3331 | clear_pending (EV_A_ (W)w); |
3975 | clear_pending (EV_A_ (W)w); |
3332 | |
3976 | |
… | |
… | |
3349 | |
3993 | |
3350 | EV_FREQUENT_CHECK; |
3994 | EV_FREQUENT_CHECK; |
3351 | } |
3995 | } |
3352 | |
3996 | |
3353 | ev_tstamp |
3997 | ev_tstamp |
3354 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
3998 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
3355 | { |
3999 | { |
3356 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
4000 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3357 | } |
4001 | } |
3358 | |
4002 | |
3359 | #if EV_PERIODIC_ENABLE |
4003 | #if EV_PERIODIC_ENABLE |
3360 | void noinline |
4004 | noinline |
|
|
4005 | void |
3361 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4006 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3362 | { |
4007 | { |
3363 | if (expect_false (ev_is_active (w))) |
4008 | if (expect_false (ev_is_active (w))) |
3364 | return; |
4009 | return; |
3365 | |
4010 | |
3366 | if (w->reschedule_cb) |
4011 | if (w->reschedule_cb) |
… | |
… | |
3385 | EV_FREQUENT_CHECK; |
4030 | EV_FREQUENT_CHECK; |
3386 | |
4031 | |
3387 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4032 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3388 | } |
4033 | } |
3389 | |
4034 | |
3390 | void noinline |
4035 | noinline |
|
|
4036 | void |
3391 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4037 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3392 | { |
4038 | { |
3393 | clear_pending (EV_A_ (W)w); |
4039 | clear_pending (EV_A_ (W)w); |
3394 | if (expect_false (!ev_is_active (w))) |
4040 | if (expect_false (!ev_is_active (w))) |
3395 | return; |
4041 | return; |
3396 | |
4042 | |
… | |
… | |
3413 | ev_stop (EV_A_ (W)w); |
4059 | ev_stop (EV_A_ (W)w); |
3414 | |
4060 | |
3415 | EV_FREQUENT_CHECK; |
4061 | EV_FREQUENT_CHECK; |
3416 | } |
4062 | } |
3417 | |
4063 | |
3418 | void noinline |
4064 | noinline |
|
|
4065 | void |
3419 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4066 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
3420 | { |
4067 | { |
3421 | /* TODO: use adjustheap and recalculation */ |
4068 | /* TODO: use adjustheap and recalculation */ |
3422 | ev_periodic_stop (EV_A_ w); |
4069 | ev_periodic_stop (EV_A_ w); |
3423 | ev_periodic_start (EV_A_ w); |
4070 | ev_periodic_start (EV_A_ w); |
3424 | } |
4071 | } |
… | |
… | |
3428 | # define SA_RESTART 0 |
4075 | # define SA_RESTART 0 |
3429 | #endif |
4076 | #endif |
3430 | |
4077 | |
3431 | #if EV_SIGNAL_ENABLE |
4078 | #if EV_SIGNAL_ENABLE |
3432 | |
4079 | |
3433 | void noinline |
4080 | noinline |
|
|
4081 | void |
3434 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4082 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
3435 | { |
4083 | { |
3436 | if (expect_false (ev_is_active (w))) |
4084 | if (expect_false (ev_is_active (w))) |
3437 | return; |
4085 | return; |
3438 | |
4086 | |
3439 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4087 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
3441 | #if EV_MULTIPLICITY |
4089 | #if EV_MULTIPLICITY |
3442 | assert (("libev: a signal must not be attached to two different loops", |
4090 | assert (("libev: a signal must not be attached to two different loops", |
3443 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4091 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3444 | |
4092 | |
3445 | signals [w->signum - 1].loop = EV_A; |
4093 | signals [w->signum - 1].loop = EV_A; |
|
|
4094 | ECB_MEMORY_FENCE_RELEASE; |
3446 | #endif |
4095 | #endif |
3447 | |
4096 | |
3448 | EV_FREQUENT_CHECK; |
4097 | EV_FREQUENT_CHECK; |
3449 | |
4098 | |
3450 | #if EV_USE_SIGNALFD |
4099 | #if EV_USE_SIGNALFD |
… | |
… | |
3509 | } |
4158 | } |
3510 | |
4159 | |
3511 | EV_FREQUENT_CHECK; |
4160 | EV_FREQUENT_CHECK; |
3512 | } |
4161 | } |
3513 | |
4162 | |
3514 | void noinline |
4163 | noinline |
|
|
4164 | void |
3515 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4165 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
3516 | { |
4166 | { |
3517 | clear_pending (EV_A_ (W)w); |
4167 | clear_pending (EV_A_ (W)w); |
3518 | if (expect_false (!ev_is_active (w))) |
4168 | if (expect_false (!ev_is_active (w))) |
3519 | return; |
4169 | return; |
3520 | |
4170 | |
… | |
… | |
3551 | #endif |
4201 | #endif |
3552 | |
4202 | |
3553 | #if EV_CHILD_ENABLE |
4203 | #if EV_CHILD_ENABLE |
3554 | |
4204 | |
3555 | void |
4205 | void |
3556 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
4206 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
3557 | { |
4207 | { |
3558 | #if EV_MULTIPLICITY |
4208 | #if EV_MULTIPLICITY |
3559 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4209 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3560 | #endif |
4210 | #endif |
3561 | if (expect_false (ev_is_active (w))) |
4211 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3568 | |
4218 | |
3569 | EV_FREQUENT_CHECK; |
4219 | EV_FREQUENT_CHECK; |
3570 | } |
4220 | } |
3571 | |
4221 | |
3572 | void |
4222 | void |
3573 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
4223 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
3574 | { |
4224 | { |
3575 | clear_pending (EV_A_ (W)w); |
4225 | clear_pending (EV_A_ (W)w); |
3576 | if (expect_false (!ev_is_active (w))) |
4226 | if (expect_false (!ev_is_active (w))) |
3577 | return; |
4227 | return; |
3578 | |
4228 | |
… | |
… | |
3595 | |
4245 | |
3596 | #define DEF_STAT_INTERVAL 5.0074891 |
4246 | #define DEF_STAT_INTERVAL 5.0074891 |
3597 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4247 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3598 | #define MIN_STAT_INTERVAL 0.1074891 |
4248 | #define MIN_STAT_INTERVAL 0.1074891 |
3599 | |
4249 | |
3600 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4250 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3601 | |
4251 | |
3602 | #if EV_USE_INOTIFY |
4252 | #if EV_USE_INOTIFY |
3603 | |
4253 | |
3604 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4254 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3605 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4255 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3606 | |
4256 | |
3607 | static void noinline |
4257 | noinline |
|
|
4258 | static void |
3608 | infy_add (EV_P_ ev_stat *w) |
4259 | infy_add (EV_P_ ev_stat *w) |
3609 | { |
4260 | { |
3610 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4261 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4262 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4263 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4264 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3611 | |
4265 | |
3612 | if (w->wd >= 0) |
4266 | if (w->wd >= 0) |
3613 | { |
4267 | { |
3614 | struct statfs sfs; |
4268 | struct statfs sfs; |
3615 | |
4269 | |
… | |
… | |
3619 | |
4273 | |
3620 | if (!fs_2625) |
4274 | if (!fs_2625) |
3621 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4275 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3622 | else if (!statfs (w->path, &sfs) |
4276 | else if (!statfs (w->path, &sfs) |
3623 | && (sfs.f_type == 0x1373 /* devfs */ |
4277 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4278 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4279 | || sfs.f_type == 0x4d44 /* msdos */ |
3624 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4280 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4281 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4282 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4283 | || sfs.f_type == 0x5346544e /* ntfs */ |
3625 | || sfs.f_type == 0x3153464a /* jfs */ |
4284 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4285 | || sfs.f_type == 0x9123683e /* btrfs */ |
3626 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4286 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3627 | || sfs.f_type == 0x01021994 /* tempfs */ |
4287 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3628 | || sfs.f_type == 0x58465342 /* xfs */)) |
4288 | || sfs.f_type == 0x58465342 /* xfs */)) |
3629 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4289 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3630 | else |
4290 | else |
3631 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4291 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3632 | } |
4292 | } |
… | |
… | |
3667 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4327 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3668 | ev_timer_again (EV_A_ &w->timer); |
4328 | ev_timer_again (EV_A_ &w->timer); |
3669 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4329 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3670 | } |
4330 | } |
3671 | |
4331 | |
3672 | static void noinline |
4332 | noinline |
|
|
4333 | static void |
3673 | infy_del (EV_P_ ev_stat *w) |
4334 | infy_del (EV_P_ ev_stat *w) |
3674 | { |
4335 | { |
3675 | int slot; |
4336 | int slot; |
3676 | int wd = w->wd; |
4337 | int wd = w->wd; |
3677 | |
4338 | |
… | |
… | |
3684 | |
4345 | |
3685 | /* remove this watcher, if others are watching it, they will rearm */ |
4346 | /* remove this watcher, if others are watching it, they will rearm */ |
3686 | inotify_rm_watch (fs_fd, wd); |
4347 | inotify_rm_watch (fs_fd, wd); |
3687 | } |
4348 | } |
3688 | |
4349 | |
3689 | static void noinline |
4350 | noinline |
|
|
4351 | static void |
3690 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4352 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3691 | { |
4353 | { |
3692 | if (slot < 0) |
4354 | if (slot < 0) |
3693 | /* overflow, need to check for all hash slots */ |
4355 | /* overflow, need to check for all hash slots */ |
3694 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4356 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3730 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4392 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3731 | ofs += sizeof (struct inotify_event) + ev->len; |
4393 | ofs += sizeof (struct inotify_event) + ev->len; |
3732 | } |
4394 | } |
3733 | } |
4395 | } |
3734 | |
4396 | |
3735 | inline_size void ecb_cold |
4397 | inline_size ecb_cold |
|
|
4398 | void |
3736 | ev_check_2625 (EV_P) |
4399 | ev_check_2625 (EV_P) |
3737 | { |
4400 | { |
3738 | /* kernels < 2.6.25 are borked |
4401 | /* kernels < 2.6.25 are borked |
3739 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4402 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3740 | */ |
4403 | */ |
… | |
… | |
3830 | #else |
4493 | #else |
3831 | # define EV_LSTAT(p,b) lstat (p, b) |
4494 | # define EV_LSTAT(p,b) lstat (p, b) |
3832 | #endif |
4495 | #endif |
3833 | |
4496 | |
3834 | void |
4497 | void |
3835 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
4498 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
3836 | { |
4499 | { |
3837 | if (lstat (w->path, &w->attr) < 0) |
4500 | if (lstat (w->path, &w->attr) < 0) |
3838 | w->attr.st_nlink = 0; |
4501 | w->attr.st_nlink = 0; |
3839 | else if (!w->attr.st_nlink) |
4502 | else if (!w->attr.st_nlink) |
3840 | w->attr.st_nlink = 1; |
4503 | w->attr.st_nlink = 1; |
3841 | } |
4504 | } |
3842 | |
4505 | |
3843 | static void noinline |
4506 | noinline |
|
|
4507 | static void |
3844 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4508 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3845 | { |
4509 | { |
3846 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4510 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3847 | |
4511 | |
3848 | ev_statdata prev = w->attr; |
4512 | ev_statdata prev = w->attr; |
… | |
… | |
3879 | ev_feed_event (EV_A_ w, EV_STAT); |
4543 | ev_feed_event (EV_A_ w, EV_STAT); |
3880 | } |
4544 | } |
3881 | } |
4545 | } |
3882 | |
4546 | |
3883 | void |
4547 | void |
3884 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
4548 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
3885 | { |
4549 | { |
3886 | if (expect_false (ev_is_active (w))) |
4550 | if (expect_false (ev_is_active (w))) |
3887 | return; |
4551 | return; |
3888 | |
4552 | |
3889 | ev_stat_stat (EV_A_ w); |
4553 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3910 | |
4574 | |
3911 | EV_FREQUENT_CHECK; |
4575 | EV_FREQUENT_CHECK; |
3912 | } |
4576 | } |
3913 | |
4577 | |
3914 | void |
4578 | void |
3915 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
4579 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
3916 | { |
4580 | { |
3917 | clear_pending (EV_A_ (W)w); |
4581 | clear_pending (EV_A_ (W)w); |
3918 | if (expect_false (!ev_is_active (w))) |
4582 | if (expect_false (!ev_is_active (w))) |
3919 | return; |
4583 | return; |
3920 | |
4584 | |
… | |
… | |
3936 | } |
4600 | } |
3937 | #endif |
4601 | #endif |
3938 | |
4602 | |
3939 | #if EV_IDLE_ENABLE |
4603 | #if EV_IDLE_ENABLE |
3940 | void |
4604 | void |
3941 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
4605 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
3942 | { |
4606 | { |
3943 | if (expect_false (ev_is_active (w))) |
4607 | if (expect_false (ev_is_active (w))) |
3944 | return; |
4608 | return; |
3945 | |
4609 | |
3946 | pri_adjust (EV_A_ (W)w); |
4610 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3959 | |
4623 | |
3960 | EV_FREQUENT_CHECK; |
4624 | EV_FREQUENT_CHECK; |
3961 | } |
4625 | } |
3962 | |
4626 | |
3963 | void |
4627 | void |
3964 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
4628 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
3965 | { |
4629 | { |
3966 | clear_pending (EV_A_ (W)w); |
4630 | clear_pending (EV_A_ (W)w); |
3967 | if (expect_false (!ev_is_active (w))) |
4631 | if (expect_false (!ev_is_active (w))) |
3968 | return; |
4632 | return; |
3969 | |
4633 | |
… | |
… | |
3983 | } |
4647 | } |
3984 | #endif |
4648 | #endif |
3985 | |
4649 | |
3986 | #if EV_PREPARE_ENABLE |
4650 | #if EV_PREPARE_ENABLE |
3987 | void |
4651 | void |
3988 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
4652 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
3989 | { |
4653 | { |
3990 | if (expect_false (ev_is_active (w))) |
4654 | if (expect_false (ev_is_active (w))) |
3991 | return; |
4655 | return; |
3992 | |
4656 | |
3993 | EV_FREQUENT_CHECK; |
4657 | EV_FREQUENT_CHECK; |
… | |
… | |
3998 | |
4662 | |
3999 | EV_FREQUENT_CHECK; |
4663 | EV_FREQUENT_CHECK; |
4000 | } |
4664 | } |
4001 | |
4665 | |
4002 | void |
4666 | void |
4003 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
4667 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
4004 | { |
4668 | { |
4005 | clear_pending (EV_A_ (W)w); |
4669 | clear_pending (EV_A_ (W)w); |
4006 | if (expect_false (!ev_is_active (w))) |
4670 | if (expect_false (!ev_is_active (w))) |
4007 | return; |
4671 | return; |
4008 | |
4672 | |
… | |
… | |
4021 | } |
4685 | } |
4022 | #endif |
4686 | #endif |
4023 | |
4687 | |
4024 | #if EV_CHECK_ENABLE |
4688 | #if EV_CHECK_ENABLE |
4025 | void |
4689 | void |
4026 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
4690 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
4027 | { |
4691 | { |
4028 | if (expect_false (ev_is_active (w))) |
4692 | if (expect_false (ev_is_active (w))) |
4029 | return; |
4693 | return; |
4030 | |
4694 | |
4031 | EV_FREQUENT_CHECK; |
4695 | EV_FREQUENT_CHECK; |
… | |
… | |
4036 | |
4700 | |
4037 | EV_FREQUENT_CHECK; |
4701 | EV_FREQUENT_CHECK; |
4038 | } |
4702 | } |
4039 | |
4703 | |
4040 | void |
4704 | void |
4041 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
4705 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
4042 | { |
4706 | { |
4043 | clear_pending (EV_A_ (W)w); |
4707 | clear_pending (EV_A_ (W)w); |
4044 | if (expect_false (!ev_is_active (w))) |
4708 | if (expect_false (!ev_is_active (w))) |
4045 | return; |
4709 | return; |
4046 | |
4710 | |
… | |
… | |
4058 | EV_FREQUENT_CHECK; |
4722 | EV_FREQUENT_CHECK; |
4059 | } |
4723 | } |
4060 | #endif |
4724 | #endif |
4061 | |
4725 | |
4062 | #if EV_EMBED_ENABLE |
4726 | #if EV_EMBED_ENABLE |
4063 | void noinline |
4727 | noinline |
|
|
4728 | void |
4064 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4729 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
4065 | { |
4730 | { |
4066 | ev_run (w->other, EVRUN_NOWAIT); |
4731 | ev_run (w->other, EVRUN_NOWAIT); |
4067 | } |
4732 | } |
4068 | |
4733 | |
4069 | static void |
4734 | static void |
… | |
… | |
4117 | ev_idle_stop (EV_A_ idle); |
4782 | ev_idle_stop (EV_A_ idle); |
4118 | } |
4783 | } |
4119 | #endif |
4784 | #endif |
4120 | |
4785 | |
4121 | void |
4786 | void |
4122 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
4787 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
4123 | { |
4788 | { |
4124 | if (expect_false (ev_is_active (w))) |
4789 | if (expect_false (ev_is_active (w))) |
4125 | return; |
4790 | return; |
4126 | |
4791 | |
4127 | { |
4792 | { |
… | |
… | |
4148 | |
4813 | |
4149 | EV_FREQUENT_CHECK; |
4814 | EV_FREQUENT_CHECK; |
4150 | } |
4815 | } |
4151 | |
4816 | |
4152 | void |
4817 | void |
4153 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
4818 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
4154 | { |
4819 | { |
4155 | clear_pending (EV_A_ (W)w); |
4820 | clear_pending (EV_A_ (W)w); |
4156 | if (expect_false (!ev_is_active (w))) |
4821 | if (expect_false (!ev_is_active (w))) |
4157 | return; |
4822 | return; |
4158 | |
4823 | |
… | |
… | |
4168 | } |
4833 | } |
4169 | #endif |
4834 | #endif |
4170 | |
4835 | |
4171 | #if EV_FORK_ENABLE |
4836 | #if EV_FORK_ENABLE |
4172 | void |
4837 | void |
4173 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
4838 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
4174 | { |
4839 | { |
4175 | if (expect_false (ev_is_active (w))) |
4840 | if (expect_false (ev_is_active (w))) |
4176 | return; |
4841 | return; |
4177 | |
4842 | |
4178 | EV_FREQUENT_CHECK; |
4843 | EV_FREQUENT_CHECK; |
… | |
… | |
4183 | |
4848 | |
4184 | EV_FREQUENT_CHECK; |
4849 | EV_FREQUENT_CHECK; |
4185 | } |
4850 | } |
4186 | |
4851 | |
4187 | void |
4852 | void |
4188 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
4853 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
4189 | { |
4854 | { |
4190 | clear_pending (EV_A_ (W)w); |
4855 | clear_pending (EV_A_ (W)w); |
4191 | if (expect_false (!ev_is_active (w))) |
4856 | if (expect_false (!ev_is_active (w))) |
4192 | return; |
4857 | return; |
4193 | |
4858 | |
… | |
… | |
4206 | } |
4871 | } |
4207 | #endif |
4872 | #endif |
4208 | |
4873 | |
4209 | #if EV_CLEANUP_ENABLE |
4874 | #if EV_CLEANUP_ENABLE |
4210 | void |
4875 | void |
4211 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
4876 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4212 | { |
4877 | { |
4213 | if (expect_false (ev_is_active (w))) |
4878 | if (expect_false (ev_is_active (w))) |
4214 | return; |
4879 | return; |
4215 | |
4880 | |
4216 | EV_FREQUENT_CHECK; |
4881 | EV_FREQUENT_CHECK; |
… | |
… | |
4223 | ev_unref (EV_A); |
4888 | ev_unref (EV_A); |
4224 | EV_FREQUENT_CHECK; |
4889 | EV_FREQUENT_CHECK; |
4225 | } |
4890 | } |
4226 | |
4891 | |
4227 | void |
4892 | void |
4228 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
4893 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
4229 | { |
4894 | { |
4230 | clear_pending (EV_A_ (W)w); |
4895 | clear_pending (EV_A_ (W)w); |
4231 | if (expect_false (!ev_is_active (w))) |
4896 | if (expect_false (!ev_is_active (w))) |
4232 | return; |
4897 | return; |
4233 | |
4898 | |
… | |
… | |
4247 | } |
4912 | } |
4248 | #endif |
4913 | #endif |
4249 | |
4914 | |
4250 | #if EV_ASYNC_ENABLE |
4915 | #if EV_ASYNC_ENABLE |
4251 | void |
4916 | void |
4252 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
4917 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
4253 | { |
4918 | { |
4254 | if (expect_false (ev_is_active (w))) |
4919 | if (expect_false (ev_is_active (w))) |
4255 | return; |
4920 | return; |
4256 | |
4921 | |
4257 | w->sent = 0; |
4922 | w->sent = 0; |
… | |
… | |
4266 | |
4931 | |
4267 | EV_FREQUENT_CHECK; |
4932 | EV_FREQUENT_CHECK; |
4268 | } |
4933 | } |
4269 | |
4934 | |
4270 | void |
4935 | void |
4271 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
4936 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
4272 | { |
4937 | { |
4273 | clear_pending (EV_A_ (W)w); |
4938 | clear_pending (EV_A_ (W)w); |
4274 | if (expect_false (!ev_is_active (w))) |
4939 | if (expect_false (!ev_is_active (w))) |
4275 | return; |
4940 | return; |
4276 | |
4941 | |
… | |
… | |
4287 | |
4952 | |
4288 | EV_FREQUENT_CHECK; |
4953 | EV_FREQUENT_CHECK; |
4289 | } |
4954 | } |
4290 | |
4955 | |
4291 | void |
4956 | void |
4292 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
4957 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
4293 | { |
4958 | { |
4294 | w->sent = 1; |
4959 | w->sent = 1; |
4295 | evpipe_write (EV_A_ &async_pending); |
4960 | evpipe_write (EV_A_ &async_pending); |
4296 | } |
4961 | } |
4297 | #endif |
4962 | #endif |
… | |
… | |
4334 | |
4999 | |
4335 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5000 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4336 | } |
5001 | } |
4337 | |
5002 | |
4338 | void |
5003 | void |
4339 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
5004 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
4340 | { |
5005 | { |
4341 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5006 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4342 | |
5007 | |
4343 | if (expect_false (!once)) |
5008 | if (expect_false (!once)) |
4344 | { |
5009 | { |
… | |
… | |
4365 | } |
5030 | } |
4366 | |
5031 | |
4367 | /*****************************************************************************/ |
5032 | /*****************************************************************************/ |
4368 | |
5033 | |
4369 | #if EV_WALK_ENABLE |
5034 | #if EV_WALK_ENABLE |
4370 | void ecb_cold |
5035 | ecb_cold |
|
|
5036 | void |
4371 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5037 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
4372 | { |
5038 | { |
4373 | int i, j; |
5039 | int i, j; |
4374 | ev_watcher_list *wl, *wn; |
5040 | ev_watcher_list *wl, *wn; |
4375 | |
5041 | |
4376 | if (types & (EV_IO | EV_EMBED)) |
5042 | if (types & (EV_IO | EV_EMBED)) |