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) 2007,2008,2009,2010,2011,2012,2013 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 | # include <winsock2.h> |
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208 | # ifndef EV_SELECT_IS_WINSOCKET |
218 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
219 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
220 | # endif |
211 | # undef EV_AVOID_STDIO |
221 | # undef EV_AVOID_STDIO |
212 | #endif |
222 | #endif |
213 | |
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214 | /* OS X, in its infinite idiocy, actually HARDCODES |
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215 | * a limit of 1024 into their select. Where people have brains, |
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
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217 | * ordered to have a vacuum, or they do anything for money. |
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218 | * This might help. Or not. |
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219 | */ |
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220 | #define _DARWIN_UNLIMITED_SELECT 1 |
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221 | |
223 | |
222 | /* 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 */ |
223 | |
225 | |
224 | /* try to deduce the maximum number of signals on this platform */ |
226 | /* try to deduce the maximum number of signals on this platform */ |
225 | #if defined EV_NSIG |
227 | #if defined EV_NSIG |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
243 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
244 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
245 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
246 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
247 | #else |
246 | # error "unable to find value for NSIG, please report" |
248 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
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248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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250 | #endif |
249 | #endif |
251 | |
250 | |
252 | #ifndef EV_USE_FLOOR |
251 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
252 | # define EV_USE_FLOOR 0 |
254 | #endif |
253 | #endif |
255 | |
254 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
256 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
258 | # else |
260 | # 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 |
261 | # endif |
269 | # endif |
262 | #endif |
270 | #endif |
263 | |
271 | |
264 | #ifndef EV_USE_MONOTONIC |
272 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
273 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
363 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
364 | #endif |
357 | |
365 | |
358 | #ifndef EV_HEAP_CACHE_AT |
366 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
367 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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368 | #endif |
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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 |
360 | #endif |
384 | #endif |
361 | |
385 | |
362 | /* 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, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
387 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
388 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
373 | # endif |
397 | # endif |
374 | #endif |
398 | #endif |
375 | |
399 | |
376 | /* 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 */ |
377 | |
401 | |
378 | #ifdef _AIX |
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379 | /* AIX has a completely broken poll.h header */ |
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380 | # undef EV_USE_POLL |
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381 | # define EV_USE_POLL 0 |
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382 | #endif |
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383 | |
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384 | #ifndef CLOCK_MONOTONIC |
402 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
403 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
404 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
405 | #endif |
388 | |
406 | |
… | |
… | |
409 | /* 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 */ |
410 | # ifndef IN_DONT_FOLLOW |
428 | # ifndef IN_DONT_FOLLOW |
411 | # undef EV_USE_INOTIFY |
429 | # undef EV_USE_INOTIFY |
412 | # define EV_USE_INOTIFY 0 |
430 | # define EV_USE_INOTIFY 0 |
413 | # endif |
431 | # endif |
414 | #endif |
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415 | |
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416 | #if EV_SELECT_IS_WINSOCKET |
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417 | # include <winsock.h> |
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418 | #endif |
432 | #endif |
419 | |
433 | |
420 | #if EV_USE_EVENTFD |
434 | #if EV_USE_EVENTFD |
421 | /* 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 */ |
422 | # include <stdint.h> |
436 | # include <stdint.h> |
… | |
… | |
479 | /* 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 */ |
480 | /* ECB.H BEGIN */ |
494 | /* ECB.H BEGIN */ |
481 | /* |
495 | /* |
482 | * libecb - http://software.schmorp.de/pkg/libecb |
496 | * libecb - http://software.schmorp.de/pkg/libecb |
483 | * |
497 | * |
484 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
498 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
485 | * Copyright (©) 2011 Emanuele Giaquinta |
499 | * Copyright (©) 2011 Emanuele Giaquinta |
486 | * All rights reserved. |
500 | * All rights reserved. |
487 | * |
501 | * |
488 | * 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- |
489 | * tion, are permitted provided that the following conditions are met: |
503 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
503 | * 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; |
504 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
518 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
505 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
519 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
506 | * 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 |
507 | * 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. |
508 | */ |
533 | */ |
509 | |
534 | |
510 | #ifndef ECB_H |
535 | #ifndef ECB_H |
511 | #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 |
512 | |
540 | |
513 | #ifdef _WIN32 |
541 | #ifdef _WIN32 |
514 | typedef signed char int8_t; |
542 | typedef signed char int8_t; |
515 | typedef unsigned char uint8_t; |
543 | typedef unsigned char uint8_t; |
516 | typedef signed short int16_t; |
544 | typedef signed short int16_t; |
… | |
… | |
522 | typedef unsigned long long uint64_t; |
550 | typedef unsigned long long uint64_t; |
523 | #else /* _MSC_VER || __BORLANDC__ */ |
551 | #else /* _MSC_VER || __BORLANDC__ */ |
524 | typedef signed __int64 int64_t; |
552 | typedef signed __int64 int64_t; |
525 | typedef unsigned __int64 uint64_t; |
553 | typedef unsigned __int64 uint64_t; |
526 | #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 |
527 | #else |
564 | #else |
528 | #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 |
529 | #endif |
583 | #endif |
530 | |
584 | |
531 | /* many compilers define _GNUC_ to some versions but then only implement |
585 | /* many compilers define _GNUC_ to some versions but then only implement |
532 | * what their idiot authors think are the "more important" extensions, |
586 | * what their idiot authors think are the "more important" extensions, |
533 | * causing enormous grief in return for some better fake benchmark numbers. |
587 | * causing enormous grief in return for some better fake benchmark numbers. |
534 | * or so. |
588 | * or so. |
535 | * 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 |
536 | * 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. |
537 | */ |
591 | */ |
538 | #ifndef ECB_GCC_VERSION |
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539 | #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__ |
540 | #define ECB_GCC_VERSION(major,minor) 0 |
593 | #define ECB_GCC_VERSION(major,minor) 0 |
541 | #else |
594 | #else |
542 | #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))) |
543 | #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 | |
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615 | #if ECB_CPP |
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616 | #define ECB_C 0 |
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617 | #define ECB_STDC_VERSION 0 |
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618 | #else |
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619 | #define ECB_C 1 |
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620 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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621 | #endif |
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622 | |
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623 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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624 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
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625 | |
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626 | #if ECB_CPP |
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627 | #define ECB_EXTERN_C extern "C" |
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628 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
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629 | #define ECB_EXTERN_C_END } |
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630 | #else |
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631 | #define ECB_EXTERN_C extern |
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632 | #define ECB_EXTERN_C_BEG |
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633 | #define ECB_EXTERN_C_END |
544 | #endif |
634 | #endif |
545 | |
635 | |
546 | /*****************************************************************************/ |
636 | /*****************************************************************************/ |
547 | |
637 | |
548 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
638 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
549 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
639 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
550 | |
640 | |
551 | #if ECB_NO_THREADS |
641 | #if ECB_NO_THREADS |
552 | # define ECB_NO_SMP 1 |
642 | #define ECB_NO_SMP 1 |
553 | #endif |
643 | #endif |
554 | |
644 | |
555 | #if ECB_NO_THREADS || ECB_NO_SMP |
645 | #if ECB_NO_SMP |
556 | #define ECB_MEMORY_FENCE do { } while (0) |
646 | #define ECB_MEMORY_FENCE do { } while (0) |
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647 | #endif |
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648 | |
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649 | /* 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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650 | #if __xlC__ && ECB_CPP |
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651 | #include <builtins.h> |
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652 | #endif |
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653 | |
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654 | #if 1400 <= _MSC_VER |
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655 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
557 | #endif |
656 | #endif |
558 | |
657 | |
559 | #ifndef ECB_MEMORY_FENCE |
658 | #ifndef ECB_MEMORY_FENCE |
560 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
659 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
561 | #if __i386 || __i386__ |
660 | #if __i386 || __i386__ |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
662 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
564 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
663 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
565 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
664 | #elif ECB_GCC_AMD64 |
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
666 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
568 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
667 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
569 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
668 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
570 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
669 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
670 | #elif defined __ARM_ARCH_2__ \ |
|
|
671 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
672 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
673 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
674 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
675 | || defined __ARM_ARCH_5TEJ__ |
|
|
676 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
571 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
677 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
572 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
678 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
679 | || defined __ARM_ARCH_6T2__ |
573 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
680 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
574 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
681 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
575 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
682 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
576 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
577 | #elif __sparc || __sparc__ |
684 | #elif __aarch64__ |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
686 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
687 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
688 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
580 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
689 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
581 | #elif defined __s390__ || defined __s390x__ |
690 | #elif defined __s390__ || defined __s390x__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
691 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
583 | #elif defined __mips__ |
692 | #elif defined __mips__ |
|
|
693 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
694 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
584 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
585 | #elif defined __alpha__ |
696 | #elif defined __alpha__ |
586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
698 | #elif defined __hppa__ |
|
|
699 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
700 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
701 | #elif defined __ia64__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
703 | #elif defined __m68k__ |
|
|
704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
705 | #elif defined __m88k__ |
|
|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
707 | #elif defined __sh__ |
|
|
708 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
587 | #endif |
709 | #endif |
588 | #endif |
710 | #endif |
589 | #endif |
711 | #endif |
590 | |
712 | |
591 | #ifndef ECB_MEMORY_FENCE |
713 | #ifndef ECB_MEMORY_FENCE |
|
|
714 | #if ECB_GCC_VERSION(4,7) |
|
|
715 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
716 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
717 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
718 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
719 | |
|
|
720 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
721 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
722 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
723 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
725 | |
592 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
726 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
593 | #define ECB_MEMORY_FENCE __sync_synchronize () |
727 | #define ECB_MEMORY_FENCE __sync_synchronize () |
594 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
728 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
595 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
729 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
730 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
731 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
732 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
733 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
596 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
734 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
597 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
735 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
598 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
736 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
599 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
737 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
600 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
738 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
610 | #define ECB_MEMORY_FENCE __sync () |
748 | #define ECB_MEMORY_FENCE __sync () |
611 | #endif |
749 | #endif |
612 | #endif |
750 | #endif |
613 | |
751 | |
614 | #ifndef ECB_MEMORY_FENCE |
752 | #ifndef ECB_MEMORY_FENCE |
|
|
753 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
754 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
755 | /* not just C11 atomics and atomic accesses */ |
|
|
756 | #include <stdatomic.h> |
|
|
757 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
758 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
759 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
760 | /* for most usages, or gcc and clang have a bug */ |
|
|
761 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
762 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
763 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
764 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
765 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
766 | #endif |
|
|
767 | #endif |
|
|
768 | |
|
|
769 | #ifndef ECB_MEMORY_FENCE |
615 | #if !ECB_AVOID_PTHREADS |
770 | #if !ECB_AVOID_PTHREADS |
616 | /* |
771 | /* |
617 | * if you get undefined symbol references to pthread_mutex_lock, |
772 | * if you get undefined symbol references to pthread_mutex_lock, |
618 | * or failure to find pthread.h, then you should implement |
773 | * or failure to find pthread.h, then you should implement |
619 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
774 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
637 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
792 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
638 | #endif |
793 | #endif |
639 | |
794 | |
640 | /*****************************************************************************/ |
795 | /*****************************************************************************/ |
641 | |
796 | |
642 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
797 | #if ECB_CPP |
643 | |
|
|
644 | #if __cplusplus |
|
|
645 | #define ecb_inline static inline |
798 | #define ecb_inline static inline |
646 | #elif ECB_GCC_VERSION(2,5) |
799 | #elif ECB_GCC_VERSION(2,5) |
647 | #define ecb_inline static __inline__ |
800 | #define ecb_inline static __inline__ |
648 | #elif ECB_C99 |
801 | #elif ECB_C99 |
649 | #define ecb_inline static inline |
802 | #define ecb_inline static inline |
… | |
… | |
663 | |
816 | |
664 | #define ECB_CONCAT_(a, b) a ## b |
817 | #define ECB_CONCAT_(a, b) a ## b |
665 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
818 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
666 | #define ECB_STRINGIFY_(a) # a |
819 | #define ECB_STRINGIFY_(a) # a |
667 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
820 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
821 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
668 | |
822 | |
669 | #define ecb_function_ ecb_inline |
823 | #define ecb_function_ ecb_inline |
670 | |
824 | |
671 | #if ECB_GCC_VERSION(3,1) |
825 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
672 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
826 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
827 | #else |
|
|
828 | #define ecb_attribute(attrlist) |
|
|
829 | #endif |
|
|
830 | |
|
|
831 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
673 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
832 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
833 | #else |
|
|
834 | /* possible C11 impl for integral types |
|
|
835 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
836 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
837 | |
|
|
838 | #define ecb_is_constant(expr) 0 |
|
|
839 | #endif |
|
|
840 | |
|
|
841 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
674 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
842 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
843 | #else |
|
|
844 | #define ecb_expect(expr,value) (expr) |
|
|
845 | #endif |
|
|
846 | |
|
|
847 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
675 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
848 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
676 | #else |
849 | #else |
677 | #define ecb_attribute(attrlist) |
|
|
678 | #define ecb_is_constant(expr) 0 |
|
|
679 | #define ecb_expect(expr,value) (expr) |
|
|
680 | #define ecb_prefetch(addr,rw,locality) |
850 | #define ecb_prefetch(addr,rw,locality) |
681 | #endif |
851 | #endif |
682 | |
852 | |
683 | /* no emulation for ecb_decltype */ |
853 | /* no emulation for ecb_decltype */ |
684 | #if ECB_GCC_VERSION(4,5) |
854 | #if ECB_CPP11 |
|
|
855 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
856 | template<class T> struct ecb_decltype_t { typedef T type; }; |
685 | #define ecb_decltype(x) __decltype(x) |
857 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
686 | #elif ECB_GCC_VERSION(3,0) |
858 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
687 | #define ecb_decltype(x) __typeof(x) |
859 | #define ecb_decltype(x) __typeof__ (x) |
688 | #endif |
860 | #endif |
689 | |
861 | |
|
|
862 | #if _MSC_VER >= 1300 |
|
|
863 | #define ecb_deprecated __declspec (deprecated) |
|
|
864 | #else |
|
|
865 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
866 | #endif |
|
|
867 | |
|
|
868 | #if _MSC_VER >= 1500 |
|
|
869 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
870 | #elif ECB_GCC_VERSION(4,5) |
|
|
871 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
872 | #else |
|
|
873 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if _MSC_VER >= 1400 |
|
|
877 | #define ecb_noinline __declspec (noinline) |
|
|
878 | #else |
690 | #define ecb_noinline ecb_attribute ((__noinline__)) |
879 | #define ecb_noinline ecb_attribute ((__noinline__)) |
691 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
880 | #endif |
|
|
881 | |
692 | #define ecb_unused ecb_attribute ((__unused__)) |
882 | #define ecb_unused ecb_attribute ((__unused__)) |
693 | #define ecb_const ecb_attribute ((__const__)) |
883 | #define ecb_const ecb_attribute ((__const__)) |
694 | #define ecb_pure ecb_attribute ((__pure__)) |
884 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
885 | |
|
|
886 | #if ECB_C11 || __IBMC_NORETURN |
|
|
887 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
888 | #define ecb_noreturn _Noreturn |
|
|
889 | #elif ECB_CPP11 |
|
|
890 | #define ecb_noreturn [[noreturn]] |
|
|
891 | #elif _MSC_VER >= 1200 |
|
|
892 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
893 | #define ecb_noreturn __declspec (noreturn) |
|
|
894 | #else |
|
|
895 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
896 | #endif |
695 | |
897 | |
696 | #if ECB_GCC_VERSION(4,3) |
898 | #if ECB_GCC_VERSION(4,3) |
697 | #define ecb_artificial ecb_attribute ((__artificial__)) |
899 | #define ecb_artificial ecb_attribute ((__artificial__)) |
698 | #define ecb_hot ecb_attribute ((__hot__)) |
900 | #define ecb_hot ecb_attribute ((__hot__)) |
699 | #define ecb_cold ecb_attribute ((__cold__)) |
901 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
711 | /* for compatibility to the rest of the world */ |
913 | /* for compatibility to the rest of the world */ |
712 | #define ecb_likely(expr) ecb_expect_true (expr) |
914 | #define ecb_likely(expr) ecb_expect_true (expr) |
713 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
915 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
714 | |
916 | |
715 | /* count trailing zero bits and count # of one bits */ |
917 | /* count trailing zero bits and count # of one bits */ |
716 | #if ECB_GCC_VERSION(3,4) |
918 | #if ECB_GCC_VERSION(3,4) \ |
|
|
919 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
920 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
921 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
717 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
922 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
718 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
923 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
719 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
924 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
720 | #define ecb_ctz32(x) __builtin_ctz (x) |
925 | #define ecb_ctz32(x) __builtin_ctz (x) |
721 | #define ecb_ctz64(x) __builtin_ctzll (x) |
926 | #define ecb_ctz64(x) __builtin_ctzll (x) |
722 | #define ecb_popcount32(x) __builtin_popcount (x) |
927 | #define ecb_popcount32(x) __builtin_popcount (x) |
723 | /* no popcountll */ |
928 | /* no popcountll */ |
724 | #else |
929 | #else |
725 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
930 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
726 | ecb_function_ int |
931 | ecb_function_ ecb_const int |
727 | ecb_ctz32 (uint32_t x) |
932 | ecb_ctz32 (uint32_t x) |
728 | { |
933 | { |
|
|
934 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
935 | unsigned long r; |
|
|
936 | _BitScanForward (&r, x); |
|
|
937 | return (int)r; |
|
|
938 | #else |
729 | int r = 0; |
939 | int r = 0; |
730 | |
940 | |
731 | x &= ~x + 1; /* this isolates the lowest bit */ |
941 | x &= ~x + 1; /* this isolates the lowest bit */ |
732 | |
942 | |
733 | #if ECB_branchless_on_i386 |
943 | #if ECB_branchless_on_i386 |
… | |
… | |
743 | if (x & 0xff00ff00) r += 8; |
953 | if (x & 0xff00ff00) r += 8; |
744 | if (x & 0xffff0000) r += 16; |
954 | if (x & 0xffff0000) r += 16; |
745 | #endif |
955 | #endif |
746 | |
956 | |
747 | return r; |
957 | return r; |
|
|
958 | #endif |
748 | } |
959 | } |
749 | |
960 | |
750 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
961 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
751 | ecb_function_ int |
962 | ecb_function_ ecb_const int |
752 | ecb_ctz64 (uint64_t x) |
963 | ecb_ctz64 (uint64_t x) |
753 | { |
964 | { |
|
|
965 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
966 | unsigned long r; |
|
|
967 | _BitScanForward64 (&r, x); |
|
|
968 | return (int)r; |
|
|
969 | #else |
754 | int shift = x & 0xffffffffU ? 0 : 32; |
970 | int shift = x & 0xffffffff ? 0 : 32; |
755 | return ecb_ctz32 (x >> shift) + shift; |
971 | return ecb_ctz32 (x >> shift) + shift; |
|
|
972 | #endif |
756 | } |
973 | } |
757 | |
974 | |
758 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
975 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
759 | ecb_function_ int |
976 | ecb_function_ ecb_const int |
760 | ecb_popcount32 (uint32_t x) |
977 | ecb_popcount32 (uint32_t x) |
761 | { |
978 | { |
762 | x -= (x >> 1) & 0x55555555; |
979 | x -= (x >> 1) & 0x55555555; |
763 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
980 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
764 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
981 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
765 | x *= 0x01010101; |
982 | x *= 0x01010101; |
766 | |
983 | |
767 | return x >> 24; |
984 | return x >> 24; |
768 | } |
985 | } |
769 | |
986 | |
770 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
987 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
771 | ecb_function_ int ecb_ld32 (uint32_t x) |
988 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
772 | { |
989 | { |
|
|
990 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
991 | unsigned long r; |
|
|
992 | _BitScanReverse (&r, x); |
|
|
993 | return (int)r; |
|
|
994 | #else |
773 | int r = 0; |
995 | int r = 0; |
774 | |
996 | |
775 | if (x >> 16) { x >>= 16; r += 16; } |
997 | if (x >> 16) { x >>= 16; r += 16; } |
776 | if (x >> 8) { x >>= 8; r += 8; } |
998 | if (x >> 8) { x >>= 8; r += 8; } |
777 | if (x >> 4) { x >>= 4; r += 4; } |
999 | if (x >> 4) { x >>= 4; r += 4; } |
778 | if (x >> 2) { x >>= 2; r += 2; } |
1000 | if (x >> 2) { x >>= 2; r += 2; } |
779 | if (x >> 1) { r += 1; } |
1001 | if (x >> 1) { r += 1; } |
780 | |
1002 | |
781 | return r; |
1003 | return r; |
|
|
1004 | #endif |
782 | } |
1005 | } |
783 | |
1006 | |
784 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1007 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
785 | ecb_function_ int ecb_ld64 (uint64_t x) |
1008 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
786 | { |
1009 | { |
|
|
1010 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1011 | unsigned long r; |
|
|
1012 | _BitScanReverse64 (&r, x); |
|
|
1013 | return (int)r; |
|
|
1014 | #else |
787 | int r = 0; |
1015 | int r = 0; |
788 | |
1016 | |
789 | if (x >> 32) { x >>= 32; r += 32; } |
1017 | if (x >> 32) { x >>= 32; r += 32; } |
790 | |
1018 | |
791 | return r + ecb_ld32 (x); |
1019 | return r + ecb_ld32 (x); |
|
|
1020 | #endif |
792 | } |
1021 | } |
793 | #endif |
1022 | #endif |
794 | |
1023 | |
|
|
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1026 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1027 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1028 | |
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1029 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
796 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1030 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
797 | { |
1031 | { |
798 | return ( (x * 0x0802U & 0x22110U) |
1032 | return ( (x * 0x0802U & 0x22110U) |
799 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1033 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
800 | } |
1034 | } |
801 | |
1035 | |
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1036 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
803 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1037 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
804 | { |
1038 | { |
805 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1039 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
806 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1040 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
807 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1041 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
808 | x = ( x >> 8 ) | ( x << 8); |
1042 | x = ( x >> 8 ) | ( x << 8); |
809 | |
1043 | |
810 | return x; |
1044 | return x; |
811 | } |
1045 | } |
812 | |
1046 | |
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1047 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
814 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1048 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
815 | { |
1049 | { |
816 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1050 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
817 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1051 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
818 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1052 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
819 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1053 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
822 | return x; |
1056 | return x; |
823 | } |
1057 | } |
824 | |
1058 | |
825 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1059 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
826 | /* so for this version we are lazy */ |
1060 | /* so for this version we are lazy */ |
827 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1061 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
828 | ecb_function_ int |
1062 | ecb_function_ ecb_const int |
829 | ecb_popcount64 (uint64_t x) |
1063 | ecb_popcount64 (uint64_t x) |
830 | { |
1064 | { |
831 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1065 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
832 | } |
1066 | } |
833 | |
1067 | |
834 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1068 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
835 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1069 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
836 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1070 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
837 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1071 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
838 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1072 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
839 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1073 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
840 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1074 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
841 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1075 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
842 | |
1076 | |
843 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1077 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
844 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1078 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
845 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1079 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
846 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1080 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
847 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1081 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
848 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1082 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
849 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1083 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
850 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1084 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
851 | |
1085 | |
852 | #if ECB_GCC_VERSION(4,3) |
1086 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1087 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1088 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1089 | #else |
853 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1090 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1091 | #endif |
854 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1092 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
855 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1093 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1094 | #elif _MSC_VER |
|
|
1095 | #include <stdlib.h> |
|
|
1096 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1097 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1098 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
856 | #else |
1099 | #else |
857 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1100 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
858 | ecb_function_ uint16_t |
1101 | ecb_function_ ecb_const uint16_t |
859 | ecb_bswap16 (uint16_t x) |
1102 | ecb_bswap16 (uint16_t x) |
860 | { |
1103 | { |
861 | return ecb_rotl16 (x, 8); |
1104 | return ecb_rotl16 (x, 8); |
862 | } |
1105 | } |
863 | |
1106 | |
864 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1107 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
865 | ecb_function_ uint32_t |
1108 | ecb_function_ ecb_const uint32_t |
866 | ecb_bswap32 (uint32_t x) |
1109 | ecb_bswap32 (uint32_t x) |
867 | { |
1110 | { |
868 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1111 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
869 | } |
1112 | } |
870 | |
1113 | |
871 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1114 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
872 | ecb_function_ uint64_t |
1115 | ecb_function_ ecb_const uint64_t |
873 | ecb_bswap64 (uint64_t x) |
1116 | ecb_bswap64 (uint64_t x) |
874 | { |
1117 | { |
875 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1118 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
876 | } |
1119 | } |
877 | #endif |
1120 | #endif |
878 | |
1121 | |
879 | #if ECB_GCC_VERSION(4,5) |
1122 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
880 | #define ecb_unreachable() __builtin_unreachable () |
1123 | #define ecb_unreachable() __builtin_unreachable () |
881 | #else |
1124 | #else |
882 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1125 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
883 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1126 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
884 | ecb_inline void ecb_unreachable (void) { } |
1127 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
885 | #endif |
1128 | #endif |
886 | |
1129 | |
887 | /* try to tell the compiler that some condition is definitely true */ |
1130 | /* try to tell the compiler that some condition is definitely true */ |
888 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1131 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
889 | |
1132 | |
890 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1133 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
891 | ecb_inline unsigned char |
1134 | ecb_inline ecb_const uint32_t |
892 | ecb_byteorder_helper (void) |
1135 | ecb_byteorder_helper (void) |
893 | { |
1136 | { |
894 | const uint32_t u = 0x11223344; |
1137 | /* the union code still generates code under pressure in gcc, */ |
895 | return *(unsigned char *)&u; |
1138 | /* but less than using pointers, and always seems to */ |
|
|
1139 | /* successfully return a constant. */ |
|
|
1140 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1141 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1142 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1143 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1144 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1145 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1146 | return 0x44332211; |
|
|
1147 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1148 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1149 | #define ECB_BIG_ENDIAN 1 |
|
|
1150 | return 0x11223344; |
|
|
1151 | #else |
|
|
1152 | union |
|
|
1153 | { |
|
|
1154 | uint8_t c[4]; |
|
|
1155 | uint32_t u; |
|
|
1156 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1157 | return u.u; |
|
|
1158 | #endif |
896 | } |
1159 | } |
897 | |
1160 | |
898 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
899 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1162 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
900 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1163 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
901 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1164 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
902 | |
1165 | |
903 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1166 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
904 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1167 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
905 | #else |
1168 | #else |
906 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1169 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
907 | #endif |
1170 | #endif |
908 | |
1171 | |
909 | #if __cplusplus |
1172 | #if ECB_CPP |
910 | template<typename T> |
1173 | template<typename T> |
911 | static inline T ecb_div_rd (T val, T div) |
1174 | static inline T ecb_div_rd (T val, T div) |
912 | { |
1175 | { |
913 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1176 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
914 | } |
1177 | } |
… | |
… | |
931 | } |
1194 | } |
932 | #else |
1195 | #else |
933 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1196 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
934 | #endif |
1197 | #endif |
935 | |
1198 | |
|
|
1199 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1200 | ecb_function_ ecb_const uint32_t |
|
|
1201 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1202 | { |
|
|
1203 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1204 | int e = (x >> 10) & 0x001f; |
|
|
1205 | unsigned int m = x & 0x03ff; |
|
|
1206 | |
|
|
1207 | if (ecb_expect_false (e == 31)) |
|
|
1208 | /* infinity or NaN */ |
|
|
1209 | e = 255 - (127 - 15); |
|
|
1210 | else if (ecb_expect_false (!e)) |
|
|
1211 | { |
|
|
1212 | if (ecb_expect_true (!m)) |
|
|
1213 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1214 | e = 0 - (127 - 15); |
|
|
1215 | else |
|
|
1216 | { |
|
|
1217 | /* subnormal, renormalise */ |
|
|
1218 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1219 | |
|
|
1220 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1221 | e -= s - 1; |
|
|
1222 | } |
|
|
1223 | } |
|
|
1224 | |
|
|
1225 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1226 | e += 127 - 15; |
|
|
1227 | |
|
|
1228 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1229 | } |
|
|
1230 | |
|
|
1231 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1232 | ecb_function_ ecb_const uint16_t |
|
|
1233 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1234 | { |
|
|
1235 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1236 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1237 | unsigned int m = x & 0x007fffff; |
|
|
1238 | |
|
|
1239 | x &= 0x7fffffff; |
|
|
1240 | |
|
|
1241 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1242 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1243 | { |
|
|
1244 | /* mantissa round-to-even */ |
|
|
1245 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1246 | |
|
|
1247 | /* handle overflow */ |
|
|
1248 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1249 | { |
|
|
1250 | m >>= 1; |
|
|
1251 | e += 1; |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | /* handle large numbers and infinity */ |
|
|
1258 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1259 | return s | 0x7c00; |
|
|
1260 | |
|
|
1261 | /* handle zero, subnormals and small numbers */ |
|
|
1262 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1263 | { |
|
|
1264 | /* zero */ |
|
|
1265 | if (ecb_expect_true (!x)) |
|
|
1266 | return s; |
|
|
1267 | |
|
|
1268 | /* handle subnormals */ |
|
|
1269 | |
|
|
1270 | /* too small, will be zero */ |
|
|
1271 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1272 | return s; |
|
|
1273 | |
|
|
1274 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1275 | |
|
|
1276 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1277 | { |
|
|
1278 | unsigned int bits = 14 - e; |
|
|
1279 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1280 | unsigned int even = (m >> bits) & 1; |
|
|
1281 | |
|
|
1282 | /* if this overflows, we will end up with a normalised number */ |
|
|
1283 | m = (m + half + even) >> bits; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | return s | m; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1290 | m >>= 13; |
|
|
1291 | |
|
|
1292 | return s | 0x7c00 | m | !m; |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | /*******************************************************************************/ |
|
|
1296 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1297 | |
|
|
1298 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1299 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1300 | #if 0 \ |
|
|
1301 | || __i386 || __i386__ \ |
|
|
1302 | || ECB_GCC_AMD64 \ |
|
|
1303 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1304 | || defined __s390__ || defined __s390x__ \ |
|
|
1305 | || defined __mips__ \ |
|
|
1306 | || defined __alpha__ \ |
|
|
1307 | || defined __hppa__ \ |
|
|
1308 | || defined __ia64__ \ |
|
|
1309 | || defined __m68k__ \ |
|
|
1310 | || defined __m88k__ \ |
|
|
1311 | || defined __sh__ \ |
|
|
1312 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1313 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1314 | || defined __aarch64__ |
|
|
1315 | #define ECB_STDFP 1 |
|
|
1316 | #include <string.h> /* for memcpy */ |
|
|
1317 | #else |
|
|
1318 | #define ECB_STDFP 0 |
|
|
1319 | #endif |
|
|
1320 | |
|
|
1321 | #ifndef ECB_NO_LIBM |
|
|
1322 | |
|
|
1323 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1324 | |
|
|
1325 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1326 | #ifdef INFINITY |
|
|
1327 | #define ECB_INFINITY INFINITY |
|
|
1328 | #else |
|
|
1329 | #define ECB_INFINITY HUGE_VAL |
|
|
1330 | #endif |
|
|
1331 | |
|
|
1332 | #ifdef NAN |
|
|
1333 | #define ECB_NAN NAN |
|
|
1334 | #else |
|
|
1335 | #define ECB_NAN ECB_INFINITY |
|
|
1336 | #endif |
|
|
1337 | |
|
|
1338 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1339 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1340 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1341 | #else |
|
|
1342 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1343 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1344 | #endif |
|
|
1345 | |
|
|
1346 | /* convert a float to ieee single/binary32 */ |
|
|
1347 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1348 | ecb_function_ ecb_const uint32_t |
|
|
1349 | ecb_float_to_binary32 (float x) |
|
|
1350 | { |
|
|
1351 | uint32_t r; |
|
|
1352 | |
|
|
1353 | #if ECB_STDFP |
|
|
1354 | memcpy (&r, &x, 4); |
|
|
1355 | #else |
|
|
1356 | /* slow emulation, works for anything but -0 */ |
|
|
1357 | uint32_t m; |
|
|
1358 | int e; |
|
|
1359 | |
|
|
1360 | if (x == 0e0f ) return 0x00000000U; |
|
|
1361 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1362 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1363 | if (x != x ) return 0x7fbfffffU; |
|
|
1364 | |
|
|
1365 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1366 | |
|
|
1367 | r = m & 0x80000000U; |
|
|
1368 | |
|
|
1369 | if (r) |
|
|
1370 | m = -m; |
|
|
1371 | |
|
|
1372 | if (e <= -126) |
|
|
1373 | { |
|
|
1374 | m &= 0xffffffU; |
|
|
1375 | m >>= (-125 - e); |
|
|
1376 | e = -126; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | r |= (e + 126) << 23; |
|
|
1380 | r |= m & 0x7fffffU; |
|
|
1381 | #endif |
|
|
1382 | |
|
|
1383 | return r; |
|
|
1384 | } |
|
|
1385 | |
|
|
1386 | /* converts an ieee single/binary32 to a float */ |
|
|
1387 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1388 | ecb_function_ ecb_const float |
|
|
1389 | ecb_binary32_to_float (uint32_t x) |
|
|
1390 | { |
|
|
1391 | float r; |
|
|
1392 | |
|
|
1393 | #if ECB_STDFP |
|
|
1394 | memcpy (&r, &x, 4); |
|
|
1395 | #else |
|
|
1396 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1397 | int neg = x >> 31; |
|
|
1398 | int e = (x >> 23) & 0xffU; |
|
|
1399 | |
|
|
1400 | x &= 0x7fffffU; |
|
|
1401 | |
|
|
1402 | if (e) |
|
|
1403 | x |= 0x800000U; |
|
|
1404 | else |
|
|
1405 | e = 1; |
|
|
1406 | |
|
|
1407 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1408 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1409 | |
|
|
1410 | r = neg ? -r : r; |
|
|
1411 | #endif |
|
|
1412 | |
|
|
1413 | return r; |
|
|
1414 | } |
|
|
1415 | |
|
|
1416 | /* convert a double to ieee double/binary64 */ |
|
|
1417 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1418 | ecb_function_ ecb_const uint64_t |
|
|
1419 | ecb_double_to_binary64 (double x) |
|
|
1420 | { |
|
|
1421 | uint64_t r; |
|
|
1422 | |
|
|
1423 | #if ECB_STDFP |
|
|
1424 | memcpy (&r, &x, 8); |
|
|
1425 | #else |
|
|
1426 | /* slow emulation, works for anything but -0 */ |
|
|
1427 | uint64_t m; |
|
|
1428 | int e; |
|
|
1429 | |
|
|
1430 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1431 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1432 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1433 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1434 | |
|
|
1435 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1436 | |
|
|
1437 | r = m & 0x8000000000000000;; |
|
|
1438 | |
|
|
1439 | if (r) |
|
|
1440 | m = -m; |
|
|
1441 | |
|
|
1442 | if (e <= -1022) |
|
|
1443 | { |
|
|
1444 | m &= 0x1fffffffffffffU; |
|
|
1445 | m >>= (-1021 - e); |
|
|
1446 | e = -1022; |
|
|
1447 | } |
|
|
1448 | |
|
|
1449 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1450 | r |= m & 0xfffffffffffffU; |
|
|
1451 | #endif |
|
|
1452 | |
|
|
1453 | return r; |
|
|
1454 | } |
|
|
1455 | |
|
|
1456 | /* converts an ieee double/binary64 to a double */ |
|
|
1457 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1458 | ecb_function_ ecb_const double |
|
|
1459 | ecb_binary64_to_double (uint64_t x) |
|
|
1460 | { |
|
|
1461 | double r; |
|
|
1462 | |
|
|
1463 | #if ECB_STDFP |
|
|
1464 | memcpy (&r, &x, 8); |
|
|
1465 | #else |
|
|
1466 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1467 | int neg = x >> 63; |
|
|
1468 | int e = (x >> 52) & 0x7ffU; |
|
|
1469 | |
|
|
1470 | x &= 0xfffffffffffffU; |
|
|
1471 | |
|
|
1472 | if (e) |
|
|
1473 | x |= 0x10000000000000U; |
|
|
1474 | else |
|
|
1475 | e = 1; |
|
|
1476 | |
|
|
1477 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1478 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1479 | |
|
|
1480 | r = neg ? -r : r; |
|
|
1481 | #endif |
|
|
1482 | |
|
|
1483 | return r; |
|
|
1484 | } |
|
|
1485 | |
|
|
1486 | /* convert a float to ieee half/binary16 */ |
|
|
1487 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1488 | ecb_function_ ecb_const uint16_t |
|
|
1489 | ecb_float_to_binary16 (float x) |
|
|
1490 | { |
|
|
1491 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | /* convert an ieee half/binary16 to float */ |
|
|
1495 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1496 | ecb_function_ ecb_const float |
|
|
1497 | ecb_binary16_to_float (uint16_t x) |
|
|
1498 | { |
|
|
1499 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | #endif |
|
|
1503 | |
936 | #endif |
1504 | #endif |
937 | |
1505 | |
938 | /* ECB.H END */ |
1506 | /* ECB.H END */ |
939 | |
1507 | |
940 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1508 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
961 | #define inline_size ecb_inline |
1529 | #define inline_size ecb_inline |
962 | |
1530 | |
963 | #if EV_FEATURE_CODE |
1531 | #if EV_FEATURE_CODE |
964 | # define inline_speed ecb_inline |
1532 | # define inline_speed ecb_inline |
965 | #else |
1533 | #else |
966 | # define inline_speed static noinline |
1534 | # define inline_speed noinline static |
967 | #endif |
1535 | #endif |
968 | |
1536 | |
969 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1537 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
970 | |
1538 | |
971 | #if EV_MINPRI == EV_MAXPRI |
1539 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1018 | #else |
1586 | #else |
1019 | |
1587 | |
1020 | #include <float.h> |
1588 | #include <float.h> |
1021 | |
1589 | |
1022 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1590 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1591 | noinline |
1023 | static ev_tstamp noinline |
1592 | static ev_tstamp |
1024 | ev_floor (ev_tstamp v) |
1593 | ev_floor (ev_tstamp v) |
1025 | { |
1594 | { |
1026 | /* the choice of shift factor is not terribly important */ |
1595 | /* the choice of shift factor is not terribly important */ |
1027 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1596 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1028 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1597 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1060 | |
1629 | |
1061 | #ifdef __linux |
1630 | #ifdef __linux |
1062 | # include <sys/utsname.h> |
1631 | # include <sys/utsname.h> |
1063 | #endif |
1632 | #endif |
1064 | |
1633 | |
1065 | static unsigned int noinline ecb_cold |
1634 | noinline ecb_cold |
|
|
1635 | static unsigned int |
1066 | ev_linux_version (void) |
1636 | ev_linux_version (void) |
1067 | { |
1637 | { |
1068 | #ifdef __linux |
1638 | #ifdef __linux |
1069 | unsigned int v = 0; |
1639 | unsigned int v = 0; |
1070 | struct utsname buf; |
1640 | struct utsname buf; |
… | |
… | |
1099 | } |
1669 | } |
1100 | |
1670 | |
1101 | /*****************************************************************************/ |
1671 | /*****************************************************************************/ |
1102 | |
1672 | |
1103 | #if EV_AVOID_STDIO |
1673 | #if EV_AVOID_STDIO |
1104 | static void noinline ecb_cold |
1674 | noinline ecb_cold |
|
|
1675 | static void |
1105 | ev_printerr (const char *msg) |
1676 | ev_printerr (const char *msg) |
1106 | { |
1677 | { |
1107 | write (STDERR_FILENO, msg, strlen (msg)); |
1678 | write (STDERR_FILENO, msg, strlen (msg)); |
1108 | } |
1679 | } |
1109 | #endif |
1680 | #endif |
1110 | |
1681 | |
1111 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1682 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1112 | |
1683 | |
1113 | void ecb_cold |
1684 | ecb_cold |
|
|
1685 | void |
1114 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1686 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1115 | { |
1687 | { |
1116 | syserr_cb = cb; |
1688 | syserr_cb = cb; |
1117 | } |
1689 | } |
1118 | |
1690 | |
1119 | static void noinline ecb_cold |
1691 | noinline ecb_cold |
|
|
1692 | static void |
1120 | ev_syserr (const char *msg) |
1693 | ev_syserr (const char *msg) |
1121 | { |
1694 | { |
1122 | if (!msg) |
1695 | if (!msg) |
1123 | msg = "(libev) system error"; |
1696 | msg = "(libev) system error"; |
1124 | |
1697 | |
… | |
… | |
1137 | abort (); |
1710 | abort (); |
1138 | } |
1711 | } |
1139 | } |
1712 | } |
1140 | |
1713 | |
1141 | static void * |
1714 | static void * |
1142 | ev_realloc_emul (void *ptr, long size) |
1715 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1143 | { |
1716 | { |
1144 | #if __GLIBC__ |
|
|
1145 | return realloc (ptr, size); |
|
|
1146 | #else |
|
|
1147 | /* some systems, notably openbsd and darwin, fail to properly |
1717 | /* some systems, notably openbsd and darwin, fail to properly |
1148 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1718 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1149 | * the single unix specification, so work around them here. |
1719 | * the single unix specification, so work around them here. |
|
|
1720 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1721 | * despite documenting it otherwise. |
1150 | */ |
1722 | */ |
1151 | |
1723 | |
1152 | if (size) |
1724 | if (size) |
1153 | return realloc (ptr, size); |
1725 | return realloc (ptr, size); |
1154 | |
1726 | |
1155 | free (ptr); |
1727 | free (ptr); |
1156 | return 0; |
1728 | return 0; |
1157 | #endif |
|
|
1158 | } |
1729 | } |
1159 | |
1730 | |
1160 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1731 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1161 | |
1732 | |
1162 | void ecb_cold |
1733 | ecb_cold |
|
|
1734 | void |
1163 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1735 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1164 | { |
1736 | { |
1165 | alloc = cb; |
1737 | alloc = cb; |
1166 | } |
1738 | } |
1167 | |
1739 | |
1168 | inline_speed void * |
1740 | inline_speed void * |
… | |
… | |
1336 | struct timespec ts; |
1908 | struct timespec ts; |
1337 | |
1909 | |
1338 | EV_TS_SET (ts, delay); |
1910 | EV_TS_SET (ts, delay); |
1339 | nanosleep (&ts, 0); |
1911 | nanosleep (&ts, 0); |
1340 | #elif defined _WIN32 |
1912 | #elif defined _WIN32 |
|
|
1913 | /* maybe this should round up, as ms is very low resolution */ |
|
|
1914 | /* compared to select (µs) or nanosleep (ns) */ |
1341 | Sleep ((unsigned long)(delay * 1e3)); |
1915 | Sleep ((unsigned long)(delay * 1e3)); |
1342 | #else |
1916 | #else |
1343 | struct timeval tv; |
1917 | struct timeval tv; |
1344 | |
1918 | |
1345 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1919 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
1376 | } |
1950 | } |
1377 | |
1951 | |
1378 | return ncur; |
1952 | return ncur; |
1379 | } |
1953 | } |
1380 | |
1954 | |
1381 | static void * noinline ecb_cold |
1955 | noinline ecb_cold |
|
|
1956 | static void * |
1382 | array_realloc (int elem, void *base, int *cur, int cnt) |
1957 | array_realloc (int elem, void *base, int *cur, int cnt) |
1383 | { |
1958 | { |
1384 | *cur = array_nextsize (elem, *cur, cnt); |
1959 | *cur = array_nextsize (elem, *cur, cnt); |
1385 | return ev_realloc (base, elem * *cur); |
1960 | return ev_realloc (base, elem * *cur); |
1386 | } |
1961 | } |
… | |
… | |
1389 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1964 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1390 | |
1965 | |
1391 | #define array_needsize(type,base,cur,cnt,init) \ |
1966 | #define array_needsize(type,base,cur,cnt,init) \ |
1392 | if (expect_false ((cnt) > (cur))) \ |
1967 | if (expect_false ((cnt) > (cur))) \ |
1393 | { \ |
1968 | { \ |
1394 | int ecb_unused ocur_ = (cur); \ |
1969 | ecb_unused int ocur_ = (cur); \ |
1395 | (base) = (type *)array_realloc \ |
1970 | (base) = (type *)array_realloc \ |
1396 | (sizeof (type), (base), &(cur), (cnt)); \ |
1971 | (sizeof (type), (base), &(cur), (cnt)); \ |
1397 | init ((base) + (ocur_), (cur) - ocur_); \ |
1972 | init ((base) + (ocur_), (cur) - ocur_); \ |
1398 | } |
1973 | } |
1399 | |
1974 | |
… | |
… | |
1411 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1986 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1412 | |
1987 | |
1413 | /*****************************************************************************/ |
1988 | /*****************************************************************************/ |
1414 | |
1989 | |
1415 | /* dummy callback for pending events */ |
1990 | /* dummy callback for pending events */ |
1416 | static void noinline |
1991 | noinline |
|
|
1992 | static void |
1417 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1993 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1418 | { |
1994 | { |
1419 | } |
1995 | } |
1420 | |
1996 | |
1421 | void noinline |
1997 | noinline |
|
|
1998 | void |
1422 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1999 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1423 | { |
2000 | { |
1424 | W w_ = (W)w; |
2001 | W w_ = (W)w; |
1425 | int pri = ABSPRI (w_); |
2002 | int pri = ABSPRI (w_); |
1426 | |
2003 | |
… | |
… | |
1556 | |
2133 | |
1557 | fdchangecnt = 0; |
2134 | fdchangecnt = 0; |
1558 | } |
2135 | } |
1559 | |
2136 | |
1560 | /* something about the given fd changed */ |
2137 | /* something about the given fd changed */ |
1561 | inline_size void |
2138 | inline_size |
|
|
2139 | void |
1562 | fd_change (EV_P_ int fd, int flags) |
2140 | fd_change (EV_P_ int fd, int flags) |
1563 | { |
2141 | { |
1564 | unsigned char reify = anfds [fd].reify; |
2142 | unsigned char reify = anfds [fd].reify; |
1565 | anfds [fd].reify |= flags; |
2143 | anfds [fd].reify |= flags; |
1566 | |
2144 | |
… | |
… | |
1571 | fdchanges [fdchangecnt - 1] = fd; |
2149 | fdchanges [fdchangecnt - 1] = fd; |
1572 | } |
2150 | } |
1573 | } |
2151 | } |
1574 | |
2152 | |
1575 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2153 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1576 | inline_speed void ecb_cold |
2154 | inline_speed ecb_cold void |
1577 | fd_kill (EV_P_ int fd) |
2155 | fd_kill (EV_P_ int fd) |
1578 | { |
2156 | { |
1579 | ev_io *w; |
2157 | ev_io *w; |
1580 | |
2158 | |
1581 | while ((w = (ev_io *)anfds [fd].head)) |
2159 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1584 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2162 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1585 | } |
2163 | } |
1586 | } |
2164 | } |
1587 | |
2165 | |
1588 | /* check whether the given fd is actually valid, for error recovery */ |
2166 | /* check whether the given fd is actually valid, for error recovery */ |
1589 | inline_size int ecb_cold |
2167 | inline_size ecb_cold int |
1590 | fd_valid (int fd) |
2168 | fd_valid (int fd) |
1591 | { |
2169 | { |
1592 | #ifdef _WIN32 |
2170 | #ifdef _WIN32 |
1593 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2171 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1594 | #else |
2172 | #else |
1595 | return fcntl (fd, F_GETFD) != -1; |
2173 | return fcntl (fd, F_GETFD) != -1; |
1596 | #endif |
2174 | #endif |
1597 | } |
2175 | } |
1598 | |
2176 | |
1599 | /* called on EBADF to verify fds */ |
2177 | /* called on EBADF to verify fds */ |
1600 | static void noinline ecb_cold |
2178 | noinline ecb_cold |
|
|
2179 | static void |
1601 | fd_ebadf (EV_P) |
2180 | fd_ebadf (EV_P) |
1602 | { |
2181 | { |
1603 | int fd; |
2182 | int fd; |
1604 | |
2183 | |
1605 | for (fd = 0; fd < anfdmax; ++fd) |
2184 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1607 | if (!fd_valid (fd) && errno == EBADF) |
2186 | if (!fd_valid (fd) && errno == EBADF) |
1608 | fd_kill (EV_A_ fd); |
2187 | fd_kill (EV_A_ fd); |
1609 | } |
2188 | } |
1610 | |
2189 | |
1611 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2190 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1612 | static void noinline ecb_cold |
2191 | noinline ecb_cold |
|
|
2192 | static void |
1613 | fd_enomem (EV_P) |
2193 | fd_enomem (EV_P) |
1614 | { |
2194 | { |
1615 | int fd; |
2195 | int fd; |
1616 | |
2196 | |
1617 | for (fd = anfdmax; fd--; ) |
2197 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1621 | break; |
2201 | break; |
1622 | } |
2202 | } |
1623 | } |
2203 | } |
1624 | |
2204 | |
1625 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2205 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1626 | static void noinline |
2206 | noinline |
|
|
2207 | static void |
1627 | fd_rearm_all (EV_P) |
2208 | fd_rearm_all (EV_P) |
1628 | { |
2209 | { |
1629 | int fd; |
2210 | int fd; |
1630 | |
2211 | |
1631 | for (fd = 0; fd < anfdmax; ++fd) |
2212 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1812 | |
2393 | |
1813 | /*****************************************************************************/ |
2394 | /*****************************************************************************/ |
1814 | |
2395 | |
1815 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2396 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1816 | |
2397 | |
1817 | static void noinline ecb_cold |
2398 | noinline ecb_cold |
|
|
2399 | static void |
1818 | evpipe_init (EV_P) |
2400 | evpipe_init (EV_P) |
1819 | { |
2401 | { |
1820 | if (!ev_is_active (&pipe_w)) |
2402 | if (!ev_is_active (&pipe_w)) |
1821 | { |
2403 | { |
|
|
2404 | int fds [2]; |
|
|
2405 | |
1822 | # if EV_USE_EVENTFD |
2406 | # if EV_USE_EVENTFD |
|
|
2407 | fds [0] = -1; |
1823 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2408 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1824 | if (evfd < 0 && errno == EINVAL) |
2409 | if (fds [1] < 0 && errno == EINVAL) |
1825 | evfd = eventfd (0, 0); |
2410 | fds [1] = eventfd (0, 0); |
1826 | |
2411 | |
1827 | if (evfd >= 0) |
2412 | if (fds [1] < 0) |
1828 | { |
|
|
1829 | evpipe [0] = -1; |
|
|
1830 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1831 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1832 | } |
|
|
1833 | else |
|
|
1834 | # endif |
2413 | # endif |
1835 | { |
2414 | { |
1836 | while (pipe (evpipe)) |
2415 | while (pipe (fds)) |
1837 | ev_syserr ("(libev) error creating signal/async pipe"); |
2416 | ev_syserr ("(libev) error creating signal/async pipe"); |
1838 | |
2417 | |
1839 | fd_intern (evpipe [0]); |
2418 | fd_intern (fds [0]); |
1840 | fd_intern (evpipe [1]); |
|
|
1841 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1842 | } |
2419 | } |
1843 | |
2420 | |
|
|
2421 | evpipe [0] = fds [0]; |
|
|
2422 | |
|
|
2423 | if (evpipe [1] < 0) |
|
|
2424 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2425 | else |
|
|
2426 | { |
|
|
2427 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2428 | /* so that evpipe_write can always rely on its value. */ |
|
|
2429 | /* this branch does not do anything sensible on windows, */ |
|
|
2430 | /* so must not be executed on windows */ |
|
|
2431 | |
|
|
2432 | dup2 (fds [1], evpipe [1]); |
|
|
2433 | close (fds [1]); |
|
|
2434 | } |
|
|
2435 | |
|
|
2436 | fd_intern (evpipe [1]); |
|
|
2437 | |
|
|
2438 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1844 | ev_io_start (EV_A_ &pipe_w); |
2439 | ev_io_start (EV_A_ &pipe_w); |
1845 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2440 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1846 | } |
2441 | } |
1847 | } |
2442 | } |
1848 | |
2443 | |
… | |
… | |
1853 | |
2448 | |
1854 | if (expect_true (*flag)) |
2449 | if (expect_true (*flag)) |
1855 | return; |
2450 | return; |
1856 | |
2451 | |
1857 | *flag = 1; |
2452 | *flag = 1; |
1858 | |
|
|
1859 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2453 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1860 | |
2454 | |
1861 | pipe_write_skipped = 1; |
2455 | pipe_write_skipped = 1; |
1862 | |
2456 | |
1863 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2457 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1864 | |
2458 | |
1865 | if (pipe_write_wanted) |
2459 | if (pipe_write_wanted) |
1866 | { |
2460 | { |
1867 | int old_errno; |
2461 | int old_errno; |
1868 | |
2462 | |
1869 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2463 | pipe_write_skipped = 0; |
|
|
2464 | ECB_MEMORY_FENCE_RELEASE; |
1870 | |
2465 | |
1871 | old_errno = errno; /* save errno because write will clobber it */ |
2466 | old_errno = errno; /* save errno because write will clobber it */ |
1872 | |
2467 | |
1873 | #if EV_USE_EVENTFD |
2468 | #if EV_USE_EVENTFD |
1874 | if (evfd >= 0) |
2469 | if (evpipe [0] < 0) |
1875 | { |
2470 | { |
1876 | uint64_t counter = 1; |
2471 | uint64_t counter = 1; |
1877 | write (evfd, &counter, sizeof (uint64_t)); |
2472 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1878 | } |
2473 | } |
1879 | else |
2474 | else |
1880 | #endif |
2475 | #endif |
1881 | { |
2476 | { |
1882 | #ifdef _WIN32 |
2477 | #ifdef _WIN32 |
1883 | WSABUF buf; |
2478 | WSABUF buf; |
1884 | DWORD sent; |
2479 | DWORD sent; |
1885 | buf.buf = &buf; |
2480 | buf.buf = (char *)&buf; |
1886 | buf.len = 1; |
2481 | buf.len = 1; |
1887 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
2482 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
1888 | #else |
2483 | #else |
1889 | write (evpipe [1], &(evpipe [1]), 1); |
2484 | write (evpipe [1], &(evpipe [1]), 1); |
1890 | #endif |
2485 | #endif |
… | |
… | |
1902 | int i; |
2497 | int i; |
1903 | |
2498 | |
1904 | if (revents & EV_READ) |
2499 | if (revents & EV_READ) |
1905 | { |
2500 | { |
1906 | #if EV_USE_EVENTFD |
2501 | #if EV_USE_EVENTFD |
1907 | if (evfd >= 0) |
2502 | if (evpipe [0] < 0) |
1908 | { |
2503 | { |
1909 | uint64_t counter; |
2504 | uint64_t counter; |
1910 | read (evfd, &counter, sizeof (uint64_t)); |
2505 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1911 | } |
2506 | } |
1912 | else |
2507 | else |
1913 | #endif |
2508 | #endif |
1914 | { |
2509 | { |
1915 | char dummy[4]; |
2510 | char dummy[4]; |
1916 | #ifdef _WIN32 |
2511 | #ifdef _WIN32 |
1917 | WSABUF buf; |
2512 | WSABUF buf; |
1918 | DWORD recvd; |
2513 | DWORD recvd; |
|
|
2514 | DWORD flags = 0; |
1919 | buf.buf = dummy; |
2515 | buf.buf = dummy; |
1920 | buf.len = sizeof (dummy); |
2516 | buf.len = sizeof (dummy); |
1921 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); |
2517 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
1922 | #else |
2518 | #else |
1923 | read (evpipe [0], &dummy, sizeof (dummy)); |
2519 | read (evpipe [0], &dummy, sizeof (dummy)); |
1924 | #endif |
2520 | #endif |
1925 | } |
2521 | } |
1926 | } |
2522 | } |
… | |
… | |
1932 | #if EV_SIGNAL_ENABLE |
2528 | #if EV_SIGNAL_ENABLE |
1933 | if (sig_pending) |
2529 | if (sig_pending) |
1934 | { |
2530 | { |
1935 | sig_pending = 0; |
2531 | sig_pending = 0; |
1936 | |
2532 | |
1937 | ECB_MEMORY_FENCE_RELEASE; |
2533 | ECB_MEMORY_FENCE; |
1938 | |
2534 | |
1939 | for (i = EV_NSIG - 1; i--; ) |
2535 | for (i = EV_NSIG - 1; i--; ) |
1940 | if (expect_false (signals [i].pending)) |
2536 | if (expect_false (signals [i].pending)) |
1941 | ev_feed_signal_event (EV_A_ i + 1); |
2537 | ev_feed_signal_event (EV_A_ i + 1); |
1942 | } |
2538 | } |
… | |
… | |
1945 | #if EV_ASYNC_ENABLE |
2541 | #if EV_ASYNC_ENABLE |
1946 | if (async_pending) |
2542 | if (async_pending) |
1947 | { |
2543 | { |
1948 | async_pending = 0; |
2544 | async_pending = 0; |
1949 | |
2545 | |
1950 | ECB_MEMORY_FENCE_RELEASE; |
2546 | ECB_MEMORY_FENCE; |
1951 | |
2547 | |
1952 | for (i = asynccnt; i--; ) |
2548 | for (i = asynccnt; i--; ) |
1953 | if (asyncs [i]->sent) |
2549 | if (asyncs [i]->sent) |
1954 | { |
2550 | { |
1955 | asyncs [i]->sent = 0; |
2551 | asyncs [i]->sent = 0; |
|
|
2552 | ECB_MEMORY_FENCE_RELEASE; |
1956 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2553 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1957 | } |
2554 | } |
1958 | } |
2555 | } |
1959 | #endif |
2556 | #endif |
1960 | } |
2557 | } |
… | |
… | |
1963 | |
2560 | |
1964 | void |
2561 | void |
1965 | ev_feed_signal (int signum) EV_THROW |
2562 | ev_feed_signal (int signum) EV_THROW |
1966 | { |
2563 | { |
1967 | #if EV_MULTIPLICITY |
2564 | #if EV_MULTIPLICITY |
|
|
2565 | EV_P; |
|
|
2566 | ECB_MEMORY_FENCE_ACQUIRE; |
1968 | EV_P = signals [signum - 1].loop; |
2567 | EV_A = signals [signum - 1].loop; |
1969 | |
2568 | |
1970 | if (!EV_A) |
2569 | if (!EV_A) |
1971 | return; |
2570 | return; |
1972 | #endif |
2571 | #endif |
1973 | |
2572 | |
1974 | if (!ev_active (&pipe_w)) |
|
|
1975 | return; |
|
|
1976 | |
|
|
1977 | signals [signum - 1].pending = 1; |
2573 | signals [signum - 1].pending = 1; |
1978 | evpipe_write (EV_A_ &sig_pending); |
2574 | evpipe_write (EV_A_ &sig_pending); |
1979 | } |
2575 | } |
1980 | |
2576 | |
1981 | static void |
2577 | static void |
… | |
… | |
1986 | #endif |
2582 | #endif |
1987 | |
2583 | |
1988 | ev_feed_signal (signum); |
2584 | ev_feed_signal (signum); |
1989 | } |
2585 | } |
1990 | |
2586 | |
1991 | void noinline |
2587 | noinline |
|
|
2588 | void |
1992 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2589 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1993 | { |
2590 | { |
1994 | WL w; |
2591 | WL w; |
1995 | |
2592 | |
1996 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2593 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1997 | return; |
2594 | return; |
1998 | |
2595 | |
1999 | --signum; |
2596 | --signum; |
2000 | |
2597 | |
2001 | #if EV_MULTIPLICITY |
2598 | #if EV_MULTIPLICITY |
… | |
… | |
2005 | if (expect_false (signals [signum].loop != EV_A)) |
2602 | if (expect_false (signals [signum].loop != EV_A)) |
2006 | return; |
2603 | return; |
2007 | #endif |
2604 | #endif |
2008 | |
2605 | |
2009 | signals [signum].pending = 0; |
2606 | signals [signum].pending = 0; |
|
|
2607 | ECB_MEMORY_FENCE_RELEASE; |
2010 | |
2608 | |
2011 | for (w = signals [signum].head; w; w = w->next) |
2609 | for (w = signals [signum].head; w; w = w->next) |
2012 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2610 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2013 | } |
2611 | } |
2014 | |
2612 | |
… | |
… | |
2112 | #endif |
2710 | #endif |
2113 | #if EV_USE_SELECT |
2711 | #if EV_USE_SELECT |
2114 | # include "ev_select.c" |
2712 | # include "ev_select.c" |
2115 | #endif |
2713 | #endif |
2116 | |
2714 | |
2117 | int ecb_cold |
2715 | ecb_cold int |
2118 | ev_version_major (void) EV_THROW |
2716 | ev_version_major (void) EV_THROW |
2119 | { |
2717 | { |
2120 | return EV_VERSION_MAJOR; |
2718 | return EV_VERSION_MAJOR; |
2121 | } |
2719 | } |
2122 | |
2720 | |
2123 | int ecb_cold |
2721 | ecb_cold int |
2124 | ev_version_minor (void) EV_THROW |
2722 | ev_version_minor (void) EV_THROW |
2125 | { |
2723 | { |
2126 | return EV_VERSION_MINOR; |
2724 | return EV_VERSION_MINOR; |
2127 | } |
2725 | } |
2128 | |
2726 | |
2129 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2727 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2130 | int inline_size ecb_cold |
2728 | inline_size ecb_cold int |
2131 | enable_secure (void) |
2729 | enable_secure (void) |
2132 | { |
2730 | { |
2133 | #ifdef _WIN32 |
2731 | #ifdef _WIN32 |
2134 | return 0; |
2732 | return 0; |
2135 | #else |
2733 | #else |
2136 | return getuid () != geteuid () |
2734 | return getuid () != geteuid () |
2137 | || getgid () != getegid (); |
2735 | || getgid () != getegid (); |
2138 | #endif |
2736 | #endif |
2139 | } |
2737 | } |
2140 | |
2738 | |
2141 | unsigned int ecb_cold |
2739 | ecb_cold |
|
|
2740 | unsigned int |
2142 | ev_supported_backends (void) EV_THROW |
2741 | ev_supported_backends (void) EV_THROW |
2143 | { |
2742 | { |
2144 | unsigned int flags = 0; |
2743 | unsigned int flags = 0; |
2145 | |
2744 | |
2146 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2745 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
2150 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2749 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2151 | |
2750 | |
2152 | return flags; |
2751 | return flags; |
2153 | } |
2752 | } |
2154 | |
2753 | |
2155 | unsigned int ecb_cold |
2754 | ecb_cold |
|
|
2755 | unsigned int |
2156 | ev_recommended_backends (void) EV_THROW |
2756 | ev_recommended_backends (void) EV_THROW |
2157 | { |
2757 | { |
2158 | unsigned int flags = ev_supported_backends (); |
2758 | unsigned int flags = ev_supported_backends (); |
2159 | |
2759 | |
2160 | #ifndef __NetBSD__ |
2760 | #ifndef __NetBSD__ |
… | |
… | |
2172 | #endif |
2772 | #endif |
2173 | |
2773 | |
2174 | return flags; |
2774 | return flags; |
2175 | } |
2775 | } |
2176 | |
2776 | |
2177 | unsigned int ecb_cold |
2777 | ecb_cold |
|
|
2778 | unsigned int |
2178 | ev_embeddable_backends (void) EV_THROW |
2779 | ev_embeddable_backends (void) EV_THROW |
2179 | { |
2780 | { |
2180 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2781 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2181 | |
2782 | |
2182 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2783 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
2228 | { |
2829 | { |
2229 | return userdata; |
2830 | return userdata; |
2230 | } |
2831 | } |
2231 | |
2832 | |
2232 | void |
2833 | void |
2233 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2834 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2234 | { |
2835 | { |
2235 | invoke_cb = invoke_pending_cb; |
2836 | invoke_cb = invoke_pending_cb; |
2236 | } |
2837 | } |
2237 | |
2838 | |
2238 | void |
2839 | void |
… | |
… | |
2242 | acquire_cb = acquire; |
2843 | acquire_cb = acquire; |
2243 | } |
2844 | } |
2244 | #endif |
2845 | #endif |
2245 | |
2846 | |
2246 | /* initialise a loop structure, must be zero-initialised */ |
2847 | /* initialise a loop structure, must be zero-initialised */ |
2247 | static void noinline ecb_cold |
2848 | noinline ecb_cold |
|
|
2849 | static void |
2248 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2850 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2249 | { |
2851 | { |
2250 | if (!backend) |
2852 | if (!backend) |
2251 | { |
2853 | { |
2252 | origflags = flags; |
2854 | origflags = flags; |
… | |
… | |
2298 | #if EV_ASYNC_ENABLE |
2900 | #if EV_ASYNC_ENABLE |
2299 | async_pending = 0; |
2901 | async_pending = 0; |
2300 | #endif |
2902 | #endif |
2301 | pipe_write_skipped = 0; |
2903 | pipe_write_skipped = 0; |
2302 | pipe_write_wanted = 0; |
2904 | pipe_write_wanted = 0; |
|
|
2905 | evpipe [0] = -1; |
|
|
2906 | evpipe [1] = -1; |
2303 | #if EV_USE_INOTIFY |
2907 | #if EV_USE_INOTIFY |
2304 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2908 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2305 | #endif |
2909 | #endif |
2306 | #if EV_USE_SIGNALFD |
2910 | #if EV_USE_SIGNALFD |
2307 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2911 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2337 | #endif |
2941 | #endif |
2338 | } |
2942 | } |
2339 | } |
2943 | } |
2340 | |
2944 | |
2341 | /* free up a loop structure */ |
2945 | /* free up a loop structure */ |
2342 | void ecb_cold |
2946 | ecb_cold |
|
|
2947 | void |
2343 | ev_loop_destroy (EV_P) |
2948 | ev_loop_destroy (EV_P) |
2344 | { |
2949 | { |
2345 | int i; |
2950 | int i; |
2346 | |
2951 | |
2347 | #if EV_MULTIPLICITY |
2952 | #if EV_MULTIPLICITY |
… | |
… | |
2358 | EV_INVOKE_PENDING; |
2963 | EV_INVOKE_PENDING; |
2359 | } |
2964 | } |
2360 | #endif |
2965 | #endif |
2361 | |
2966 | |
2362 | #if EV_CHILD_ENABLE |
2967 | #if EV_CHILD_ENABLE |
2363 | if (ev_is_active (&childev)) |
2968 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2364 | { |
2969 | { |
2365 | ev_ref (EV_A); /* child watcher */ |
2970 | ev_ref (EV_A); /* child watcher */ |
2366 | ev_signal_stop (EV_A_ &childev); |
2971 | ev_signal_stop (EV_A_ &childev); |
2367 | } |
2972 | } |
2368 | #endif |
2973 | #endif |
… | |
… | |
2370 | if (ev_is_active (&pipe_w)) |
2975 | if (ev_is_active (&pipe_w)) |
2371 | { |
2976 | { |
2372 | /*ev_ref (EV_A);*/ |
2977 | /*ev_ref (EV_A);*/ |
2373 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2978 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2374 | |
2979 | |
2375 | #if EV_USE_EVENTFD |
|
|
2376 | if (evfd >= 0) |
|
|
2377 | close (evfd); |
|
|
2378 | #endif |
|
|
2379 | |
|
|
2380 | if (evpipe [0] >= 0) |
|
|
2381 | { |
|
|
2382 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2980 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2383 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2981 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2384 | } |
|
|
2385 | } |
2982 | } |
2386 | |
2983 | |
2387 | #if EV_USE_SIGNALFD |
2984 | #if EV_USE_SIGNALFD |
2388 | if (ev_is_active (&sigfd_w)) |
2985 | if (ev_is_active (&sigfd_w)) |
2389 | close (sigfd); |
2986 | close (sigfd); |
… | |
… | |
2475 | #endif |
3072 | #endif |
2476 | #if EV_USE_INOTIFY |
3073 | #if EV_USE_INOTIFY |
2477 | infy_fork (EV_A); |
3074 | infy_fork (EV_A); |
2478 | #endif |
3075 | #endif |
2479 | |
3076 | |
|
|
3077 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2480 | if (ev_is_active (&pipe_w)) |
3078 | if (ev_is_active (&pipe_w) && postfork != 2) |
2481 | { |
3079 | { |
2482 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3080 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2483 | |
3081 | |
2484 | ev_ref (EV_A); |
3082 | ev_ref (EV_A); |
2485 | ev_io_stop (EV_A_ &pipe_w); |
3083 | ev_io_stop (EV_A_ &pipe_w); |
2486 | |
3084 | |
2487 | #if EV_USE_EVENTFD |
|
|
2488 | if (evfd >= 0) |
|
|
2489 | close (evfd); |
|
|
2490 | #endif |
|
|
2491 | |
|
|
2492 | if (evpipe [0] >= 0) |
3085 | if (evpipe [0] >= 0) |
2493 | { |
|
|
2494 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3086 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2495 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2496 | } |
|
|
2497 | |
3087 | |
2498 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2499 | evpipe_init (EV_A); |
3088 | evpipe_init (EV_A); |
2500 | /* now iterate over everything, in case we missed something */ |
3089 | /* iterate over everything, in case we missed something before */ |
2501 | pipecb (EV_A_ &pipe_w, EV_READ); |
3090 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2502 | #endif |
|
|
2503 | } |
3091 | } |
|
|
3092 | #endif |
2504 | |
3093 | |
2505 | postfork = 0; |
3094 | postfork = 0; |
2506 | } |
3095 | } |
2507 | |
3096 | |
2508 | #if EV_MULTIPLICITY |
3097 | #if EV_MULTIPLICITY |
2509 | |
3098 | |
|
|
3099 | ecb_cold |
2510 | struct ev_loop * ecb_cold |
3100 | struct ev_loop * |
2511 | ev_loop_new (unsigned int flags) EV_THROW |
3101 | ev_loop_new (unsigned int flags) EV_THROW |
2512 | { |
3102 | { |
2513 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3103 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2514 | |
3104 | |
2515 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3105 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2523 | } |
3113 | } |
2524 | |
3114 | |
2525 | #endif /* multiplicity */ |
3115 | #endif /* multiplicity */ |
2526 | |
3116 | |
2527 | #if EV_VERIFY |
3117 | #if EV_VERIFY |
2528 | static void noinline ecb_cold |
3118 | noinline ecb_cold |
|
|
3119 | static void |
2529 | verify_watcher (EV_P_ W w) |
3120 | verify_watcher (EV_P_ W w) |
2530 | { |
3121 | { |
2531 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3122 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2532 | |
3123 | |
2533 | if (w->pending) |
3124 | if (w->pending) |
2534 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3125 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2535 | } |
3126 | } |
2536 | |
3127 | |
2537 | static void noinline ecb_cold |
3128 | noinline ecb_cold |
|
|
3129 | static void |
2538 | verify_heap (EV_P_ ANHE *heap, int N) |
3130 | verify_heap (EV_P_ ANHE *heap, int N) |
2539 | { |
3131 | { |
2540 | int i; |
3132 | int i; |
2541 | |
3133 | |
2542 | for (i = HEAP0; i < N + HEAP0; ++i) |
3134 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2547 | |
3139 | |
2548 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3140 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2549 | } |
3141 | } |
2550 | } |
3142 | } |
2551 | |
3143 | |
2552 | static void noinline ecb_cold |
3144 | noinline ecb_cold |
|
|
3145 | static void |
2553 | array_verify (EV_P_ W *ws, int cnt) |
3146 | array_verify (EV_P_ W *ws, int cnt) |
2554 | { |
3147 | { |
2555 | while (cnt--) |
3148 | while (cnt--) |
2556 | { |
3149 | { |
2557 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3150 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2646 | #endif |
3239 | #endif |
2647 | } |
3240 | } |
2648 | #endif |
3241 | #endif |
2649 | |
3242 | |
2650 | #if EV_MULTIPLICITY |
3243 | #if EV_MULTIPLICITY |
|
|
3244 | ecb_cold |
2651 | struct ev_loop * ecb_cold |
3245 | struct ev_loop * |
2652 | #else |
3246 | #else |
2653 | int |
3247 | int |
2654 | #endif |
3248 | #endif |
2655 | ev_default_loop (unsigned int flags) EV_THROW |
3249 | ev_default_loop (unsigned int flags) EV_THROW |
2656 | { |
3250 | { |
… | |
… | |
2681 | } |
3275 | } |
2682 | |
3276 | |
2683 | void |
3277 | void |
2684 | ev_loop_fork (EV_P) EV_THROW |
3278 | ev_loop_fork (EV_P) EV_THROW |
2685 | { |
3279 | { |
2686 | postfork = 1; /* must be in line with ev_default_fork */ |
3280 | postfork = 1; |
2687 | } |
3281 | } |
2688 | |
3282 | |
2689 | /*****************************************************************************/ |
3283 | /*****************************************************************************/ |
2690 | |
3284 | |
2691 | void |
3285 | void |
… | |
… | |
2704 | count += pendingcnt [pri]; |
3298 | count += pendingcnt [pri]; |
2705 | |
3299 | |
2706 | return count; |
3300 | return count; |
2707 | } |
3301 | } |
2708 | |
3302 | |
2709 | void noinline |
3303 | noinline |
|
|
3304 | void |
2710 | ev_invoke_pending (EV_P) |
3305 | ev_invoke_pending (EV_P) |
2711 | { |
3306 | { |
2712 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
3307 | pendingpri = NUMPRI; |
|
|
3308 | |
|
|
3309 | do |
|
|
3310 | { |
|
|
3311 | --pendingpri; |
|
|
3312 | |
|
|
3313 | /* pendingpri possibly gets modified in the inner loop */ |
2713 | while (pendingcnt [pendingpri]) |
3314 | while (pendingcnt [pendingpri]) |
2714 | { |
3315 | { |
2715 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3316 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2716 | |
3317 | |
2717 | p->w->pending = 0; |
3318 | p->w->pending = 0; |
2718 | EV_CB_INVOKE (p->w, p->events); |
3319 | EV_CB_INVOKE (p->w, p->events); |
2719 | EV_FREQUENT_CHECK; |
3320 | EV_FREQUENT_CHECK; |
2720 | } |
3321 | } |
|
|
3322 | } |
|
|
3323 | while (pendingpri); |
2721 | } |
3324 | } |
2722 | |
3325 | |
2723 | #if EV_IDLE_ENABLE |
3326 | #if EV_IDLE_ENABLE |
2724 | /* make idle watchers pending. this handles the "call-idle */ |
3327 | /* make idle watchers pending. this handles the "call-idle */ |
2725 | /* only when higher priorities are idle" logic */ |
3328 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2783 | } |
3386 | } |
2784 | } |
3387 | } |
2785 | |
3388 | |
2786 | #if EV_PERIODIC_ENABLE |
3389 | #if EV_PERIODIC_ENABLE |
2787 | |
3390 | |
2788 | static void noinline |
3391 | noinline |
|
|
3392 | static void |
2789 | periodic_recalc (EV_P_ ev_periodic *w) |
3393 | periodic_recalc (EV_P_ ev_periodic *w) |
2790 | { |
3394 | { |
2791 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3395 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
2792 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3396 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
2793 | |
3397 | |
… | |
… | |
2815 | { |
3419 | { |
2816 | EV_FREQUENT_CHECK; |
3420 | EV_FREQUENT_CHECK; |
2817 | |
3421 | |
2818 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3422 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2819 | { |
3423 | { |
2820 | int feed_count = 0; |
|
|
2821 | |
|
|
2822 | do |
3424 | do |
2823 | { |
3425 | { |
2824 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3426 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2825 | |
3427 | |
2826 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3428 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2853 | } |
3455 | } |
2854 | } |
3456 | } |
2855 | |
3457 | |
2856 | /* simply recalculate all periodics */ |
3458 | /* simply recalculate all periodics */ |
2857 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3459 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2858 | static void noinline ecb_cold |
3460 | noinline ecb_cold |
|
|
3461 | static void |
2859 | periodics_reschedule (EV_P) |
3462 | periodics_reschedule (EV_P) |
2860 | { |
3463 | { |
2861 | int i; |
3464 | int i; |
2862 | |
3465 | |
2863 | /* adjust periodics after time jump */ |
3466 | /* adjust periodics after time jump */ |
… | |
… | |
2876 | reheap (periodics, periodiccnt); |
3479 | reheap (periodics, periodiccnt); |
2877 | } |
3480 | } |
2878 | #endif |
3481 | #endif |
2879 | |
3482 | |
2880 | /* adjust all timers by a given offset */ |
3483 | /* adjust all timers by a given offset */ |
2881 | static void noinline ecb_cold |
3484 | noinline ecb_cold |
|
|
3485 | static void |
2882 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3486 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2883 | { |
3487 | { |
2884 | int i; |
3488 | int i; |
2885 | |
3489 | |
2886 | for (i = 0; i < timercnt; ++i) |
3490 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3085 | backend_poll (EV_A_ waittime); |
3689 | backend_poll (EV_A_ waittime); |
3086 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3690 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3087 | |
3691 | |
3088 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3692 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3089 | |
3693 | |
|
|
3694 | ECB_MEMORY_FENCE_ACQUIRE; |
3090 | if (pipe_write_skipped) |
3695 | if (pipe_write_skipped) |
3091 | { |
3696 | { |
3092 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3697 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3093 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3698 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3094 | } |
3699 | } |
… | |
… | |
3253 | w->active = 0; |
3858 | w->active = 0; |
3254 | } |
3859 | } |
3255 | |
3860 | |
3256 | /*****************************************************************************/ |
3861 | /*****************************************************************************/ |
3257 | |
3862 | |
3258 | void noinline |
3863 | noinline |
|
|
3864 | void |
3259 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3865 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3260 | { |
3866 | { |
3261 | int fd = w->fd; |
3867 | int fd = w->fd; |
3262 | |
3868 | |
3263 | if (expect_false (ev_is_active (w))) |
3869 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3279 | w->events &= ~EV__IOFDSET; |
3885 | w->events &= ~EV__IOFDSET; |
3280 | |
3886 | |
3281 | EV_FREQUENT_CHECK; |
3887 | EV_FREQUENT_CHECK; |
3282 | } |
3888 | } |
3283 | |
3889 | |
3284 | void noinline |
3890 | noinline |
|
|
3891 | void |
3285 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3892 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3286 | { |
3893 | { |
3287 | clear_pending (EV_A_ (W)w); |
3894 | clear_pending (EV_A_ (W)w); |
3288 | if (expect_false (!ev_is_active (w))) |
3895 | if (expect_false (!ev_is_active (w))) |
3289 | return; |
3896 | return; |
… | |
… | |
3298 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3905 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3299 | |
3906 | |
3300 | EV_FREQUENT_CHECK; |
3907 | EV_FREQUENT_CHECK; |
3301 | } |
3908 | } |
3302 | |
3909 | |
3303 | void noinline |
3910 | noinline |
|
|
3911 | void |
3304 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3912 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3305 | { |
3913 | { |
3306 | if (expect_false (ev_is_active (w))) |
3914 | if (expect_false (ev_is_active (w))) |
3307 | return; |
3915 | return; |
3308 | |
3916 | |
… | |
… | |
3322 | EV_FREQUENT_CHECK; |
3930 | EV_FREQUENT_CHECK; |
3323 | |
3931 | |
3324 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3932 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3325 | } |
3933 | } |
3326 | |
3934 | |
3327 | void noinline |
3935 | noinline |
|
|
3936 | void |
3328 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3937 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3329 | { |
3938 | { |
3330 | clear_pending (EV_A_ (W)w); |
3939 | clear_pending (EV_A_ (W)w); |
3331 | if (expect_false (!ev_is_active (w))) |
3940 | if (expect_false (!ev_is_active (w))) |
3332 | return; |
3941 | return; |
… | |
… | |
3352 | ev_stop (EV_A_ (W)w); |
3961 | ev_stop (EV_A_ (W)w); |
3353 | |
3962 | |
3354 | EV_FREQUENT_CHECK; |
3963 | EV_FREQUENT_CHECK; |
3355 | } |
3964 | } |
3356 | |
3965 | |
3357 | void noinline |
3966 | noinline |
|
|
3967 | void |
3358 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3968 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3359 | { |
3969 | { |
3360 | EV_FREQUENT_CHECK; |
3970 | EV_FREQUENT_CHECK; |
3361 | |
3971 | |
3362 | clear_pending (EV_A_ (W)w); |
3972 | clear_pending (EV_A_ (W)w); |
… | |
… | |
3386 | { |
3996 | { |
3387 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3997 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3388 | } |
3998 | } |
3389 | |
3999 | |
3390 | #if EV_PERIODIC_ENABLE |
4000 | #if EV_PERIODIC_ENABLE |
3391 | void noinline |
4001 | noinline |
|
|
4002 | void |
3392 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4003 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3393 | { |
4004 | { |
3394 | if (expect_false (ev_is_active (w))) |
4005 | if (expect_false (ev_is_active (w))) |
3395 | return; |
4006 | return; |
3396 | |
4007 | |
… | |
… | |
3416 | EV_FREQUENT_CHECK; |
4027 | EV_FREQUENT_CHECK; |
3417 | |
4028 | |
3418 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4029 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3419 | } |
4030 | } |
3420 | |
4031 | |
3421 | void noinline |
4032 | noinline |
|
|
4033 | void |
3422 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4034 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3423 | { |
4035 | { |
3424 | clear_pending (EV_A_ (W)w); |
4036 | clear_pending (EV_A_ (W)w); |
3425 | if (expect_false (!ev_is_active (w))) |
4037 | if (expect_false (!ev_is_active (w))) |
3426 | return; |
4038 | return; |
… | |
… | |
3444 | ev_stop (EV_A_ (W)w); |
4056 | ev_stop (EV_A_ (W)w); |
3445 | |
4057 | |
3446 | EV_FREQUENT_CHECK; |
4058 | EV_FREQUENT_CHECK; |
3447 | } |
4059 | } |
3448 | |
4060 | |
3449 | void noinline |
4061 | noinline |
|
|
4062 | void |
3450 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4063 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3451 | { |
4064 | { |
3452 | /* TODO: use adjustheap and recalculation */ |
4065 | /* TODO: use adjustheap and recalculation */ |
3453 | ev_periodic_stop (EV_A_ w); |
4066 | ev_periodic_stop (EV_A_ w); |
3454 | ev_periodic_start (EV_A_ w); |
4067 | ev_periodic_start (EV_A_ w); |
… | |
… | |
3459 | # define SA_RESTART 0 |
4072 | # define SA_RESTART 0 |
3460 | #endif |
4073 | #endif |
3461 | |
4074 | |
3462 | #if EV_SIGNAL_ENABLE |
4075 | #if EV_SIGNAL_ENABLE |
3463 | |
4076 | |
3464 | void noinline |
4077 | noinline |
|
|
4078 | void |
3465 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4079 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3466 | { |
4080 | { |
3467 | if (expect_false (ev_is_active (w))) |
4081 | if (expect_false (ev_is_active (w))) |
3468 | return; |
4082 | return; |
3469 | |
4083 | |
… | |
… | |
3472 | #if EV_MULTIPLICITY |
4086 | #if EV_MULTIPLICITY |
3473 | assert (("libev: a signal must not be attached to two different loops", |
4087 | assert (("libev: a signal must not be attached to two different loops", |
3474 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4088 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3475 | |
4089 | |
3476 | signals [w->signum - 1].loop = EV_A; |
4090 | signals [w->signum - 1].loop = EV_A; |
|
|
4091 | ECB_MEMORY_FENCE_RELEASE; |
3477 | #endif |
4092 | #endif |
3478 | |
4093 | |
3479 | EV_FREQUENT_CHECK; |
4094 | EV_FREQUENT_CHECK; |
3480 | |
4095 | |
3481 | #if EV_USE_SIGNALFD |
4096 | #if EV_USE_SIGNALFD |
… | |
… | |
3540 | } |
4155 | } |
3541 | |
4156 | |
3542 | EV_FREQUENT_CHECK; |
4157 | EV_FREQUENT_CHECK; |
3543 | } |
4158 | } |
3544 | |
4159 | |
3545 | void noinline |
4160 | noinline |
|
|
4161 | void |
3546 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4162 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3547 | { |
4163 | { |
3548 | clear_pending (EV_A_ (W)w); |
4164 | clear_pending (EV_A_ (W)w); |
3549 | if (expect_false (!ev_is_active (w))) |
4165 | if (expect_false (!ev_is_active (w))) |
3550 | return; |
4166 | return; |
… | |
… | |
3626 | |
4242 | |
3627 | #define DEF_STAT_INTERVAL 5.0074891 |
4243 | #define DEF_STAT_INTERVAL 5.0074891 |
3628 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4244 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3629 | #define MIN_STAT_INTERVAL 0.1074891 |
4245 | #define MIN_STAT_INTERVAL 0.1074891 |
3630 | |
4246 | |
3631 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4247 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3632 | |
4248 | |
3633 | #if EV_USE_INOTIFY |
4249 | #if EV_USE_INOTIFY |
3634 | |
4250 | |
3635 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4251 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3636 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4252 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3637 | |
4253 | |
3638 | static void noinline |
4254 | noinline |
|
|
4255 | static void |
3639 | infy_add (EV_P_ ev_stat *w) |
4256 | infy_add (EV_P_ ev_stat *w) |
3640 | { |
4257 | { |
3641 | 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); |
4258 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4259 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4260 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4261 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3642 | |
4262 | |
3643 | if (w->wd >= 0) |
4263 | if (w->wd >= 0) |
3644 | { |
4264 | { |
3645 | struct statfs sfs; |
4265 | struct statfs sfs; |
3646 | |
4266 | |
… | |
… | |
3650 | |
4270 | |
3651 | if (!fs_2625) |
4271 | if (!fs_2625) |
3652 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4272 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3653 | else if (!statfs (w->path, &sfs) |
4273 | else if (!statfs (w->path, &sfs) |
3654 | && (sfs.f_type == 0x1373 /* devfs */ |
4274 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4275 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4276 | || sfs.f_type == 0x4d44 /* msdos */ |
3655 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4277 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4278 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4279 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4280 | || sfs.f_type == 0x5346544e /* ntfs */ |
3656 | || sfs.f_type == 0x3153464a /* jfs */ |
4281 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4282 | || sfs.f_type == 0x9123683e /* btrfs */ |
3657 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4283 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3658 | || sfs.f_type == 0x01021994 /* tempfs */ |
4284 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3659 | || sfs.f_type == 0x58465342 /* xfs */)) |
4285 | || sfs.f_type == 0x58465342 /* xfs */)) |
3660 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4286 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3661 | else |
4287 | else |
3662 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4288 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3663 | } |
4289 | } |
… | |
… | |
3698 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4324 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3699 | ev_timer_again (EV_A_ &w->timer); |
4325 | ev_timer_again (EV_A_ &w->timer); |
3700 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4326 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3701 | } |
4327 | } |
3702 | |
4328 | |
3703 | static void noinline |
4329 | noinline |
|
|
4330 | static void |
3704 | infy_del (EV_P_ ev_stat *w) |
4331 | infy_del (EV_P_ ev_stat *w) |
3705 | { |
4332 | { |
3706 | int slot; |
4333 | int slot; |
3707 | int wd = w->wd; |
4334 | int wd = w->wd; |
3708 | |
4335 | |
… | |
… | |
3715 | |
4342 | |
3716 | /* remove this watcher, if others are watching it, they will rearm */ |
4343 | /* remove this watcher, if others are watching it, they will rearm */ |
3717 | inotify_rm_watch (fs_fd, wd); |
4344 | inotify_rm_watch (fs_fd, wd); |
3718 | } |
4345 | } |
3719 | |
4346 | |
3720 | static void noinline |
4347 | noinline |
|
|
4348 | static void |
3721 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4349 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3722 | { |
4350 | { |
3723 | if (slot < 0) |
4351 | if (slot < 0) |
3724 | /* overflow, need to check for all hash slots */ |
4352 | /* overflow, need to check for all hash slots */ |
3725 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4353 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
3761 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4389 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3762 | ofs += sizeof (struct inotify_event) + ev->len; |
4390 | ofs += sizeof (struct inotify_event) + ev->len; |
3763 | } |
4391 | } |
3764 | } |
4392 | } |
3765 | |
4393 | |
3766 | inline_size void ecb_cold |
4394 | inline_size ecb_cold |
|
|
4395 | void |
3767 | ev_check_2625 (EV_P) |
4396 | ev_check_2625 (EV_P) |
3768 | { |
4397 | { |
3769 | /* kernels < 2.6.25 are borked |
4398 | /* kernels < 2.6.25 are borked |
3770 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4399 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3771 | */ |
4400 | */ |
… | |
… | |
3869 | w->attr.st_nlink = 0; |
4498 | w->attr.st_nlink = 0; |
3870 | else if (!w->attr.st_nlink) |
4499 | else if (!w->attr.st_nlink) |
3871 | w->attr.st_nlink = 1; |
4500 | w->attr.st_nlink = 1; |
3872 | } |
4501 | } |
3873 | |
4502 | |
3874 | static void noinline |
4503 | noinline |
|
|
4504 | static void |
3875 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4505 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3876 | { |
4506 | { |
3877 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4507 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3878 | |
4508 | |
3879 | ev_statdata prev = w->attr; |
4509 | ev_statdata prev = w->attr; |
… | |
… | |
4089 | EV_FREQUENT_CHECK; |
4719 | EV_FREQUENT_CHECK; |
4090 | } |
4720 | } |
4091 | #endif |
4721 | #endif |
4092 | |
4722 | |
4093 | #if EV_EMBED_ENABLE |
4723 | #if EV_EMBED_ENABLE |
4094 | void noinline |
4724 | noinline |
|
|
4725 | void |
4095 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4726 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4096 | { |
4727 | { |
4097 | ev_run (w->other, EVRUN_NOWAIT); |
4728 | ev_run (w->other, EVRUN_NOWAIT); |
4098 | } |
4729 | } |
4099 | |
4730 | |
… | |
… | |
4396 | } |
5027 | } |
4397 | |
5028 | |
4398 | /*****************************************************************************/ |
5029 | /*****************************************************************************/ |
4399 | |
5030 | |
4400 | #if EV_WALK_ENABLE |
5031 | #if EV_WALK_ENABLE |
4401 | void ecb_cold |
5032 | ecb_cold |
|
|
5033 | void |
4402 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5034 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4403 | { |
5035 | { |
4404 | int i, j; |
5036 | int i, j; |
4405 | ev_watcher_list *wl, *wn; |
5037 | ev_watcher_list *wl, *wn; |
4406 | |
5038 | |