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 | |
… | |
… | |
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 |
… | |
… | |
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 |
360 | #endif |
368 | #endif |
361 | |
369 | |
362 | #ifdef ANDROID |
370 | #ifdef __ANDROID__ |
363 | /* supposedly, android doesn't typedef fd_mask */ |
371 | /* supposedly, android doesn't typedef fd_mask */ |
364 | # undef EV_USE_SELECT |
372 | # undef EV_USE_SELECT |
365 | # define EV_USE_SELECT 0 |
373 | # define EV_USE_SELECT 0 |
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
374 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
367 | # undef EV_USE_CLOCK_SYSCALL |
375 | # undef EV_USE_CLOCK_SYSCALL |
… | |
… | |
485 | /* 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 */ |
486 | /* ECB.H BEGIN */ |
494 | /* ECB.H BEGIN */ |
487 | /* |
495 | /* |
488 | * libecb - http://software.schmorp.de/pkg/libecb |
496 | * libecb - http://software.schmorp.de/pkg/libecb |
489 | * |
497 | * |
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
498 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
491 | * Copyright (©) 2011 Emanuele Giaquinta |
499 | * Copyright (©) 2011 Emanuele Giaquinta |
492 | * All rights reserved. |
500 | * All rights reserved. |
493 | * |
501 | * |
494 | * 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- |
495 | * tion, are permitted provided that the following conditions are met: |
503 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
509 | * 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; |
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
518 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
519 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
520 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
513 | * 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. |
514 | */ |
533 | */ |
515 | |
534 | |
516 | #ifndef ECB_H |
535 | #ifndef ECB_H |
517 | #define ECB_H |
536 | #define ECB_H |
518 | |
537 | |
519 | /* 16 bits major, 16 bits minor */ |
538 | /* 16 bits major, 16 bits minor */ |
520 | #define ECB_VERSION 0x00010003 |
539 | #define ECB_VERSION 0x00010005 |
521 | |
540 | |
522 | #ifdef _WIN32 |
541 | #ifdef _WIN32 |
523 | typedef signed char int8_t; |
542 | typedef signed char int8_t; |
524 | typedef unsigned char uint8_t; |
543 | typedef unsigned char uint8_t; |
525 | typedef signed short int16_t; |
544 | typedef signed short int16_t; |
… | |
… | |
542 | typedef uint32_t uintptr_t; |
561 | typedef uint32_t uintptr_t; |
543 | typedef int32_t intptr_t; |
562 | typedef int32_t intptr_t; |
544 | #endif |
563 | #endif |
545 | #else |
564 | #else |
546 | #include <inttypes.h> |
565 | #include <inttypes.h> |
547 | #if UINTMAX_MAX > 0xffffffffU |
566 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
548 | #define ECB_PTRSIZE 8 |
567 | #define ECB_PTRSIZE 8 |
549 | #else |
568 | #else |
550 | #define ECB_PTRSIZE 4 |
569 | #define ECB_PTRSIZE 4 |
551 | #endif |
570 | #endif |
552 | #endif |
571 | #endif |
553 | |
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 | |
554 | /* work around x32 idiocy by defining proper macros */ |
576 | /* work around x32 idiocy by defining proper macros */ |
555 | #if __x86_64 || _M_AMD64 |
577 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
556 | #if __ILP32 |
578 | #if _ILP32 |
557 | #define ECB_AMD64_X32 1 |
579 | #define ECB_AMD64_X32 1 |
558 | #else |
580 | #else |
559 | #define ECB_AMD64 1 |
581 | #define ECB_AMD64 1 |
560 | #endif |
582 | #endif |
561 | #endif |
583 | #endif |
… | |
… | |
565 | * causing enormous grief in return for some better fake benchmark numbers. |
587 | * causing enormous grief in return for some better fake benchmark numbers. |
566 | * or so. |
588 | * or so. |
567 | * 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 |
568 | * 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. |
569 | */ |
591 | */ |
570 | #ifndef ECB_GCC_VERSION |
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571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
592 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
572 | #define ECB_GCC_VERSION(major,minor) 0 |
593 | #define ECB_GCC_VERSION(major,minor) 0 |
573 | #else |
594 | #else |
574 | #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))) |
575 | #endif |
596 | #endif |
576 | #endif |
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577 | |
597 | |
578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
598 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
599 | |
580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
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 | |
581 | #define ECB_CPP (__cplusplus+0) |
612 | #define ECB_CPP (__cplusplus+0) |
582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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) |
583 | |
625 | |
584 | #if ECB_CPP |
626 | #if ECB_CPP |
585 | #define ECB_EXTERN_C extern "C" |
627 | #define ECB_EXTERN_C extern "C" |
586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
628 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
587 | #define ECB_EXTERN_C_END } |
629 | #define ECB_EXTERN_C_END } |
… | |
… | |
600 | #define ECB_NO_SMP 1 |
642 | #define ECB_NO_SMP 1 |
601 | #endif |
643 | #endif |
602 | |
644 | |
603 | #if ECB_NO_SMP |
645 | #if ECB_NO_SMP |
604 | #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 */ |
605 | #endif |
656 | #endif |
606 | |
657 | |
607 | #ifndef ECB_MEMORY_FENCE |
658 | #ifndef ECB_MEMORY_FENCE |
608 | #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 |
609 | #if __i386 || __i386__ |
660 | #if __i386 || __i386__ |
610 | #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") |
611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
662 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
663 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
664 | #elif ECB_GCC_AMD64 |
614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
665 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
666 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
667 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
668 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
618 | #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__ \ |
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671 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
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672 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
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673 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
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674 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
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675 | || defined __ARM_ARCH_5TEJ__ |
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676 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
677 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
678 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
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679 | || defined __ARM_ARCH_6T2__ |
621 | #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") |
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
681 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
682 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
625 | #elif __sparc || __sparc__ |
684 | #elif __aarch64__ |
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685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
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686 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
626 | #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") |
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
688 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
689 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
629 | #elif defined __s390__ || defined __s390x__ |
690 | #elif defined __s390__ || defined __s390x__ |
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
691 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
631 | #elif defined __mips__ |
692 | #elif defined __mips__ |
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693 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
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694 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
632 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
633 | #elif defined __alpha__ |
696 | #elif defined __alpha__ |
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
635 | #elif defined __hppa__ |
698 | #elif defined __hppa__ |
636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
699 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
637 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
700 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
638 | #elif defined __ia64__ |
701 | #elif defined __ia64__ |
639 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
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703 | #elif defined __m68k__ |
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704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
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|
705 | #elif defined __m88k__ |
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|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
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|
707 | #elif defined __sh__ |
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|
708 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
640 | #endif |
709 | #endif |
641 | #endif |
710 | #endif |
642 | #endif |
711 | #endif |
643 | |
712 | |
644 | #ifndef ECB_MEMORY_FENCE |
713 | #ifndef ECB_MEMORY_FENCE |
645 | #if ECB_GCC_VERSION(4,7) |
714 | #if ECB_GCC_VERSION(4,7) |
646 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
715 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
647 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
716 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
717 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
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|
718 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
648 | |
719 | |
649 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
720 | #elif ECB_CLANG_EXTENSION(c_atomic) |
650 | * without risking compile time errors with other compilers. We *could* |
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|
651 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
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|
652 | * around this shit time and again. |
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|
653 | * #elif defined __clang && __has_feature (cxx_atomic) |
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|
654 | * // see comment below (stdatomic.h) about the C11 memory model. |
721 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
655 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
722 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
656 | */ |
723 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
657 | |
725 | |
658 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
726 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
659 | #define ECB_MEMORY_FENCE __sync_synchronize () |
727 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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|
728 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
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() |
660 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
734 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
661 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
735 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
662 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
736 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
663 | #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 */ |
664 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
738 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
684 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
758 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
685 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
759 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
686 | /* for most usages, or gcc and clang have a bug */ |
760 | /* for most usages, or gcc and clang have a bug */ |
687 | /* I *currently* lean towards the latter, and inefficiently implement */ |
761 | /* I *currently* lean towards the latter, and inefficiently implement */ |
688 | /* all three of ecb's fences as a seq_cst fence */ |
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 */ |
689 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
765 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
690 | #endif |
766 | #endif |
691 | #endif |
767 | #endif |
692 | |
768 | |
693 | #ifndef ECB_MEMORY_FENCE |
769 | #ifndef ECB_MEMORY_FENCE |
… | |
… | |
716 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
792 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
717 | #endif |
793 | #endif |
718 | |
794 | |
719 | /*****************************************************************************/ |
795 | /*****************************************************************************/ |
720 | |
796 | |
721 | #if __cplusplus |
797 | #if ECB_CPP |
722 | #define ecb_inline static inline |
798 | #define ecb_inline static inline |
723 | #elif ECB_GCC_VERSION(2,5) |
799 | #elif ECB_GCC_VERSION(2,5) |
724 | #define ecb_inline static __inline__ |
800 | #define ecb_inline static __inline__ |
725 | #elif ECB_C99 |
801 | #elif ECB_C99 |
726 | #define ecb_inline static inline |
802 | #define ecb_inline static inline |
… | |
… | |
740 | |
816 | |
741 | #define ECB_CONCAT_(a, b) a ## b |
817 | #define ECB_CONCAT_(a, b) a ## b |
742 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
818 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
743 | #define ECB_STRINGIFY_(a) # a |
819 | #define ECB_STRINGIFY_(a) # a |
744 | #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)) |
745 | |
822 | |
746 | #define ecb_function_ ecb_inline |
823 | #define ecb_function_ ecb_inline |
747 | |
824 | |
748 | #if ECB_GCC_VERSION(3,1) |
825 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
749 | #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) |
750 | #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) |
751 | #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) |
752 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
848 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
753 | #else |
849 | #else |
754 | #define ecb_attribute(attrlist) |
|
|
755 | #define ecb_is_constant(expr) 0 |
|
|
756 | #define ecb_expect(expr,value) (expr) |
|
|
757 | #define ecb_prefetch(addr,rw,locality) |
850 | #define ecb_prefetch(addr,rw,locality) |
758 | #endif |
851 | #endif |
759 | |
852 | |
760 | /* no emulation for ecb_decltype */ |
853 | /* no emulation for ecb_decltype */ |
761 | #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; }; |
762 | #define ecb_decltype(x) __decltype(x) |
857 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
763 | #elif ECB_GCC_VERSION(3,0) |
858 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
764 | #define ecb_decltype(x) __typeof(x) |
859 | #define ecb_decltype(x) __typeof__ (x) |
765 | #endif |
860 | #endif |
766 | |
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 |
767 | #define ecb_noinline ecb_attribute ((__noinline__)) |
879 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
880 | #endif |
|
|
881 | |
768 | #define ecb_unused ecb_attribute ((__unused__)) |
882 | #define ecb_unused ecb_attribute ((__unused__)) |
769 | #define ecb_const ecb_attribute ((__const__)) |
883 | #define ecb_const ecb_attribute ((__const__)) |
770 | #define ecb_pure ecb_attribute ((__pure__)) |
884 | #define ecb_pure ecb_attribute ((__pure__)) |
771 | |
885 | |
772 | #if ECB_C11 |
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 */ |
773 | #define ecb_noreturn _Noreturn |
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) |
774 | #else |
894 | #else |
775 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
895 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
776 | #endif |
896 | #endif |
777 | |
897 | |
778 | #if ECB_GCC_VERSION(4,3) |
898 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
793 | /* for compatibility to the rest of the world */ |
913 | /* for compatibility to the rest of the world */ |
794 | #define ecb_likely(expr) ecb_expect_true (expr) |
914 | #define ecb_likely(expr) ecb_expect_true (expr) |
795 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
915 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
796 | |
916 | |
797 | /* count trailing zero bits and count # of one bits */ |
917 | /* count trailing zero bits and count # of one bits */ |
798 | #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)) |
799 | /* 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 */ |
800 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
923 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
801 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
924 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
802 | #define ecb_ctz32(x) __builtin_ctz (x) |
925 | #define ecb_ctz32(x) __builtin_ctz (x) |
803 | #define ecb_ctz64(x) __builtin_ctzll (x) |
926 | #define ecb_ctz64(x) __builtin_ctzll (x) |
804 | #define ecb_popcount32(x) __builtin_popcount (x) |
927 | #define ecb_popcount32(x) __builtin_popcount (x) |
805 | /* no popcountll */ |
928 | /* no popcountll */ |
806 | #else |
929 | #else |
807 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
930 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
808 | ecb_function_ int |
931 | ecb_function_ ecb_const int |
809 | ecb_ctz32 (uint32_t x) |
932 | ecb_ctz32 (uint32_t x) |
810 | { |
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 |
811 | int r = 0; |
939 | int r = 0; |
812 | |
940 | |
813 | x &= ~x + 1; /* this isolates the lowest bit */ |
941 | x &= ~x + 1; /* this isolates the lowest bit */ |
814 | |
942 | |
815 | #if ECB_branchless_on_i386 |
943 | #if ECB_branchless_on_i386 |
… | |
… | |
825 | if (x & 0xff00ff00) r += 8; |
953 | if (x & 0xff00ff00) r += 8; |
826 | if (x & 0xffff0000) r += 16; |
954 | if (x & 0xffff0000) r += 16; |
827 | #endif |
955 | #endif |
828 | |
956 | |
829 | return r; |
957 | return r; |
|
|
958 | #endif |
830 | } |
959 | } |
831 | |
960 | |
832 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
961 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
833 | ecb_function_ int |
962 | ecb_function_ ecb_const int |
834 | ecb_ctz64 (uint64_t x) |
963 | ecb_ctz64 (uint64_t x) |
835 | { |
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 |
836 | int shift = x & 0xffffffffU ? 0 : 32; |
970 | int shift = x & 0xffffffff ? 0 : 32; |
837 | return ecb_ctz32 (x >> shift) + shift; |
971 | return ecb_ctz32 (x >> shift) + shift; |
|
|
972 | #endif |
838 | } |
973 | } |
839 | |
974 | |
840 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
975 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
841 | ecb_function_ int |
976 | ecb_function_ ecb_const int |
842 | ecb_popcount32 (uint32_t x) |
977 | ecb_popcount32 (uint32_t x) |
843 | { |
978 | { |
844 | x -= (x >> 1) & 0x55555555; |
979 | x -= (x >> 1) & 0x55555555; |
845 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
980 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
846 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
981 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
847 | x *= 0x01010101; |
982 | x *= 0x01010101; |
848 | |
983 | |
849 | return x >> 24; |
984 | return x >> 24; |
850 | } |
985 | } |
851 | |
986 | |
852 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
987 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
853 | ecb_function_ int ecb_ld32 (uint32_t x) |
988 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
854 | { |
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 |
855 | int r = 0; |
995 | int r = 0; |
856 | |
996 | |
857 | if (x >> 16) { x >>= 16; r += 16; } |
997 | if (x >> 16) { x >>= 16; r += 16; } |
858 | if (x >> 8) { x >>= 8; r += 8; } |
998 | if (x >> 8) { x >>= 8; r += 8; } |
859 | if (x >> 4) { x >>= 4; r += 4; } |
999 | if (x >> 4) { x >>= 4; r += 4; } |
860 | if (x >> 2) { x >>= 2; r += 2; } |
1000 | if (x >> 2) { x >>= 2; r += 2; } |
861 | if (x >> 1) { r += 1; } |
1001 | if (x >> 1) { r += 1; } |
862 | |
1002 | |
863 | return r; |
1003 | return r; |
|
|
1004 | #endif |
864 | } |
1005 | } |
865 | |
1006 | |
866 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1007 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
867 | ecb_function_ int ecb_ld64 (uint64_t x) |
1008 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
868 | { |
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 |
869 | int r = 0; |
1015 | int r = 0; |
870 | |
1016 | |
871 | if (x >> 32) { x >>= 32; r += 32; } |
1017 | if (x >> 32) { x >>= 32; r += 32; } |
872 | |
1018 | |
873 | return r + ecb_ld32 (x); |
1019 | return r + ecb_ld32 (x); |
|
|
1020 | #endif |
874 | } |
1021 | } |
875 | #endif |
1022 | #endif |
876 | |
1023 | |
877 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
878 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
879 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1026 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
880 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1027 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
881 | |
1028 | |
882 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1029 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
883 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1030 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
884 | { |
1031 | { |
885 | return ( (x * 0x0802U & 0x22110U) |
1032 | return ( (x * 0x0802U & 0x22110U) |
886 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1033 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
887 | } |
1034 | } |
888 | |
1035 | |
889 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1036 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
890 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1037 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
891 | { |
1038 | { |
892 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1039 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
893 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1040 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
894 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1041 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
895 | x = ( x >> 8 ) | ( x << 8); |
1042 | x = ( x >> 8 ) | ( x << 8); |
896 | |
1043 | |
897 | return x; |
1044 | return x; |
898 | } |
1045 | } |
899 | |
1046 | |
900 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1047 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
901 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1048 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
902 | { |
1049 | { |
903 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1050 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
904 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1051 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
905 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1052 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
906 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1053 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
909 | return x; |
1056 | return x; |
910 | } |
1057 | } |
911 | |
1058 | |
912 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1059 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
913 | /* so for this version we are lazy */ |
1060 | /* so for this version we are lazy */ |
914 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1061 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
915 | ecb_function_ int |
1062 | ecb_function_ ecb_const int |
916 | ecb_popcount64 (uint64_t x) |
1063 | ecb_popcount64 (uint64_t x) |
917 | { |
1064 | { |
918 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1065 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
919 | } |
1066 | } |
920 | |
1067 | |
921 | 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); |
922 | 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); |
923 | 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); |
924 | 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); |
925 | 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); |
926 | 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); |
927 | 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); |
928 | 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); |
929 | |
1076 | |
930 | 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); } |
931 | 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); } |
932 | 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); } |
933 | 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); } |
934 | 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); } |
935 | 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); } |
936 | 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); } |
937 | 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); } |
938 | |
1085 | |
939 | #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 |
940 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1090 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1091 | #endif |
941 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1092 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
942 | #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))) |
943 | #else |
1099 | #else |
944 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1100 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
945 | ecb_function_ uint16_t |
1101 | ecb_function_ ecb_const uint16_t |
946 | ecb_bswap16 (uint16_t x) |
1102 | ecb_bswap16 (uint16_t x) |
947 | { |
1103 | { |
948 | return ecb_rotl16 (x, 8); |
1104 | return ecb_rotl16 (x, 8); |
949 | } |
1105 | } |
950 | |
1106 | |
951 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1107 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
952 | ecb_function_ uint32_t |
1108 | ecb_function_ ecb_const uint32_t |
953 | ecb_bswap32 (uint32_t x) |
1109 | ecb_bswap32 (uint32_t x) |
954 | { |
1110 | { |
955 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1111 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
956 | } |
1112 | } |
957 | |
1113 | |
958 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1114 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
959 | ecb_function_ uint64_t |
1115 | ecb_function_ ecb_const uint64_t |
960 | ecb_bswap64 (uint64_t x) |
1116 | ecb_bswap64 (uint64_t x) |
961 | { |
1117 | { |
962 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1118 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
963 | } |
1119 | } |
964 | #endif |
1120 | #endif |
965 | |
1121 | |
966 | #if ECB_GCC_VERSION(4,5) |
1122 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
967 | #define ecb_unreachable() __builtin_unreachable () |
1123 | #define ecb_unreachable() __builtin_unreachable () |
968 | #else |
1124 | #else |
969 | /* 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 :/ */ |
970 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1126 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
971 | ecb_inline void ecb_unreachable (void) { } |
1127 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
972 | #endif |
1128 | #endif |
973 | |
1129 | |
974 | /* try to tell the compiler that some condition is definitely true */ |
1130 | /* try to tell the compiler that some condition is definitely true */ |
975 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1131 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
976 | |
1132 | |
977 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1133 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
978 | ecb_inline unsigned char |
1134 | ecb_inline ecb_const uint32_t |
979 | ecb_byteorder_helper (void) |
1135 | ecb_byteorder_helper (void) |
980 | { |
1136 | { |
981 | /* the union code still generates code under pressure in gcc, */ |
1137 | /* the union code still generates code under pressure in gcc, */ |
982 | /* but less than using pointers, and always seems to */ |
1138 | /* but less than using pointers, and always seems to */ |
983 | /* successfully return a constant. */ |
1139 | /* successfully return a constant. */ |
984 | /* the reason why we have this horrible preprocessor mess */ |
1140 | /* the reason why we have this horrible preprocessor mess */ |
985 | /* is to avoid it in all cases, at least on common architectures */ |
1141 | /* is to avoid it in all cases, at least on common architectures */ |
986 | /* or when using a recent enough gcc version (>= 4.6) */ |
1142 | /* or when using a recent enough gcc version (>= 4.6) */ |
987 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
988 | return 0x44; |
|
|
989 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
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 |
990 | return 0x44; |
1146 | return 0x44332211; |
991 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1147 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1148 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1149 | #define ECB_BIG_ENDIAN 1 |
992 | return 0x11; |
1150 | return 0x11223344; |
993 | #else |
1151 | #else |
994 | union |
1152 | union |
995 | { |
1153 | { |
|
|
1154 | uint8_t c[4]; |
996 | uint32_t i; |
1155 | uint32_t u; |
997 | uint8_t c; |
|
|
998 | } u = { 0x11223344 }; |
1156 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
999 | return u.c; |
1157 | return u.u; |
1000 | #endif |
1158 | #endif |
1001 | } |
1159 | } |
1002 | |
1160 | |
1003 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1004 | 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; } |
1005 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1163 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1006 | 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; } |
1007 | |
1165 | |
1008 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1166 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1009 | #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)) |
1010 | #else |
1168 | #else |
1011 | #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))) |
1012 | #endif |
1170 | #endif |
1013 | |
1171 | |
1014 | #if __cplusplus |
1172 | #if ECB_CPP |
1015 | template<typename T> |
1173 | template<typename T> |
1016 | static inline T ecb_div_rd (T val, T div) |
1174 | static inline T ecb_div_rd (T val, T div) |
1017 | { |
1175 | { |
1018 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1176 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1019 | } |
1177 | } |
… | |
… | |
1036 | } |
1194 | } |
1037 | #else |
1195 | #else |
1038 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1196 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1039 | #endif |
1197 | #endif |
1040 | |
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 | |
1041 | /*******************************************************************************/ |
1295 | /*******************************************************************************/ |
1042 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1296 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1043 | |
1297 | |
1044 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1298 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1045 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1299 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1046 | #if 0 \ |
1300 | #if 0 \ |
1047 | || __i386 || __i386__ \ |
1301 | || __i386 || __i386__ \ |
1048 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1302 | || ECB_GCC_AMD64 \ |
1049 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1303 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1050 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1051 | || defined __s390__ || defined __s390x__ \ |
1304 | || defined __s390__ || defined __s390x__ \ |
1052 | || defined __mips__ \ |
1305 | || defined __mips__ \ |
1053 | || defined __alpha__ \ |
1306 | || defined __alpha__ \ |
1054 | || defined __hppa__ \ |
1307 | || defined __hppa__ \ |
1055 | || defined __ia64__ \ |
1308 | || defined __ia64__ \ |
|
|
1309 | || defined __m68k__ \ |
|
|
1310 | || defined __m88k__ \ |
|
|
1311 | || defined __sh__ \ |
1056 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
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__ |
1057 | #define ECB_STDFP 1 |
1315 | #define ECB_STDFP 1 |
1058 | #include <string.h> /* for memcpy */ |
1316 | #include <string.h> /* for memcpy */ |
1059 | #else |
1317 | #else |
1060 | #define ECB_STDFP 0 |
1318 | #define ECB_STDFP 0 |
1061 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1062 | #endif |
1319 | #endif |
1063 | |
1320 | |
1064 | #ifndef ECB_NO_LIBM |
1321 | #ifndef ECB_NO_LIBM |
1065 | |
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 | |
1066 | /* convert a float to ieee single/binary32 */ |
1346 | /* convert a float to ieee single/binary32 */ |
1067 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1347 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1068 | ecb_function_ uint32_t |
1348 | ecb_function_ ecb_const uint32_t |
1069 | ecb_float_to_binary32 (float x) |
1349 | ecb_float_to_binary32 (float x) |
1070 | { |
1350 | { |
1071 | uint32_t r; |
1351 | uint32_t r; |
1072 | |
1352 | |
1073 | #if ECB_STDFP |
1353 | #if ECB_STDFP |
… | |
… | |
1080 | if (x == 0e0f ) return 0x00000000U; |
1360 | if (x == 0e0f ) return 0x00000000U; |
1081 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1361 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1082 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1362 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1083 | if (x != x ) return 0x7fbfffffU; |
1363 | if (x != x ) return 0x7fbfffffU; |
1084 | |
1364 | |
1085 | m = frexpf (x, &e) * 0x1000000U; |
1365 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1086 | |
1366 | |
1087 | r = m & 0x80000000U; |
1367 | r = m & 0x80000000U; |
1088 | |
1368 | |
1089 | if (r) |
1369 | if (r) |
1090 | m = -m; |
1370 | m = -m; |
… | |
… | |
1102 | |
1382 | |
1103 | return r; |
1383 | return r; |
1104 | } |
1384 | } |
1105 | |
1385 | |
1106 | /* converts an ieee single/binary32 to a float */ |
1386 | /* converts an ieee single/binary32 to a float */ |
1107 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1387 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1108 | ecb_function_ float |
1388 | ecb_function_ ecb_const float |
1109 | ecb_binary32_to_float (uint32_t x) |
1389 | ecb_binary32_to_float (uint32_t x) |
1110 | { |
1390 | { |
1111 | float r; |
1391 | float r; |
1112 | |
1392 | |
1113 | #if ECB_STDFP |
1393 | #if ECB_STDFP |
… | |
… | |
1123 | x |= 0x800000U; |
1403 | x |= 0x800000U; |
1124 | else |
1404 | else |
1125 | e = 1; |
1405 | e = 1; |
1126 | |
1406 | |
1127 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1407 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1128 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1408 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1129 | |
1409 | |
1130 | r = neg ? -r : r; |
1410 | r = neg ? -r : r; |
1131 | #endif |
1411 | #endif |
1132 | |
1412 | |
1133 | return r; |
1413 | return r; |
1134 | } |
1414 | } |
1135 | |
1415 | |
1136 | /* convert a double to ieee double/binary64 */ |
1416 | /* convert a double to ieee double/binary64 */ |
1137 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1417 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1138 | ecb_function_ uint64_t |
1418 | ecb_function_ ecb_const uint64_t |
1139 | ecb_double_to_binary64 (double x) |
1419 | ecb_double_to_binary64 (double x) |
1140 | { |
1420 | { |
1141 | uint64_t r; |
1421 | uint64_t r; |
1142 | |
1422 | |
1143 | #if ECB_STDFP |
1423 | #if ECB_STDFP |
… | |
… | |
1172 | |
1452 | |
1173 | return r; |
1453 | return r; |
1174 | } |
1454 | } |
1175 | |
1455 | |
1176 | /* converts an ieee double/binary64 to a double */ |
1456 | /* converts an ieee double/binary64 to a double */ |
1177 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1457 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1178 | ecb_function_ double |
1458 | ecb_function_ ecb_const double |
1179 | ecb_binary64_to_double (uint64_t x) |
1459 | ecb_binary64_to_double (uint64_t x) |
1180 | { |
1460 | { |
1181 | double r; |
1461 | double r; |
1182 | |
1462 | |
1183 | #if ECB_STDFP |
1463 | #if ECB_STDFP |
… | |
… | |
1199 | |
1479 | |
1200 | r = neg ? -r : r; |
1480 | r = neg ? -r : r; |
1201 | #endif |
1481 | #endif |
1202 | |
1482 | |
1203 | return r; |
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)); |
1204 | } |
1500 | } |
1205 | |
1501 | |
1206 | #endif |
1502 | #endif |
1207 | |
1503 | |
1208 | #endif |
1504 | #endif |
… | |
… | |
1233 | #define inline_size ecb_inline |
1529 | #define inline_size ecb_inline |
1234 | |
1530 | |
1235 | #if EV_FEATURE_CODE |
1531 | #if EV_FEATURE_CODE |
1236 | # define inline_speed ecb_inline |
1532 | # define inline_speed ecb_inline |
1237 | #else |
1533 | #else |
1238 | # define inline_speed static noinline |
1534 | # define inline_speed noinline static |
1239 | #endif |
1535 | #endif |
1240 | |
1536 | |
1241 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1537 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1242 | |
1538 | |
1243 | #if EV_MINPRI == EV_MAXPRI |
1539 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1290 | #else |
1586 | #else |
1291 | |
1587 | |
1292 | #include <float.h> |
1588 | #include <float.h> |
1293 | |
1589 | |
1294 | /* 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 |
1295 | static ev_tstamp noinline |
1592 | static ev_tstamp |
1296 | ev_floor (ev_tstamp v) |
1593 | ev_floor (ev_tstamp v) |
1297 | { |
1594 | { |
1298 | /* the choice of shift factor is not terribly important */ |
1595 | /* the choice of shift factor is not terribly important */ |
1299 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1596 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1300 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1597 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1332 | |
1629 | |
1333 | #ifdef __linux |
1630 | #ifdef __linux |
1334 | # include <sys/utsname.h> |
1631 | # include <sys/utsname.h> |
1335 | #endif |
1632 | #endif |
1336 | |
1633 | |
1337 | static unsigned int noinline ecb_cold |
1634 | noinline ecb_cold |
|
|
1635 | static unsigned int |
1338 | ev_linux_version (void) |
1636 | ev_linux_version (void) |
1339 | { |
1637 | { |
1340 | #ifdef __linux |
1638 | #ifdef __linux |
1341 | unsigned int v = 0; |
1639 | unsigned int v = 0; |
1342 | struct utsname buf; |
1640 | struct utsname buf; |
… | |
… | |
1371 | } |
1669 | } |
1372 | |
1670 | |
1373 | /*****************************************************************************/ |
1671 | /*****************************************************************************/ |
1374 | |
1672 | |
1375 | #if EV_AVOID_STDIO |
1673 | #if EV_AVOID_STDIO |
1376 | static void noinline ecb_cold |
1674 | noinline ecb_cold |
|
|
1675 | static void |
1377 | ev_printerr (const char *msg) |
1676 | ev_printerr (const char *msg) |
1378 | { |
1677 | { |
1379 | write (STDERR_FILENO, msg, strlen (msg)); |
1678 | write (STDERR_FILENO, msg, strlen (msg)); |
1380 | } |
1679 | } |
1381 | #endif |
1680 | #endif |
1382 | |
1681 | |
1383 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1682 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1384 | |
1683 | |
1385 | void ecb_cold |
1684 | ecb_cold |
|
|
1685 | void |
1386 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1686 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1387 | { |
1687 | { |
1388 | syserr_cb = cb; |
1688 | syserr_cb = cb; |
1389 | } |
1689 | } |
1390 | |
1690 | |
1391 | static void noinline ecb_cold |
1691 | noinline ecb_cold |
|
|
1692 | static void |
1392 | ev_syserr (const char *msg) |
1693 | ev_syserr (const char *msg) |
1393 | { |
1694 | { |
1394 | if (!msg) |
1695 | if (!msg) |
1395 | msg = "(libev) system error"; |
1696 | msg = "(libev) system error"; |
1396 | |
1697 | |
… | |
… | |
1427 | return 0; |
1728 | return 0; |
1428 | } |
1729 | } |
1429 | |
1730 | |
1430 | 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; |
1431 | |
1732 | |
1432 | void ecb_cold |
1733 | ecb_cold |
|
|
1734 | void |
1433 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1735 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1434 | { |
1736 | { |
1435 | alloc = cb; |
1737 | alloc = cb; |
1436 | } |
1738 | } |
1437 | |
1739 | |
… | |
… | |
1606 | struct timespec ts; |
1908 | struct timespec ts; |
1607 | |
1909 | |
1608 | EV_TS_SET (ts, delay); |
1910 | EV_TS_SET (ts, delay); |
1609 | nanosleep (&ts, 0); |
1911 | nanosleep (&ts, 0); |
1610 | #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) */ |
1611 | Sleep ((unsigned long)(delay * 1e3)); |
1915 | Sleep ((unsigned long)(delay * 1e3)); |
1612 | #else |
1916 | #else |
1613 | struct timeval tv; |
1917 | struct timeval tv; |
1614 | |
1918 | |
1615 | /* 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 */ |
… | |
… | |
1646 | } |
1950 | } |
1647 | |
1951 | |
1648 | return ncur; |
1952 | return ncur; |
1649 | } |
1953 | } |
1650 | |
1954 | |
1651 | static void * noinline ecb_cold |
1955 | noinline ecb_cold |
|
|
1956 | static void * |
1652 | array_realloc (int elem, void *base, int *cur, int cnt) |
1957 | array_realloc (int elem, void *base, int *cur, int cnt) |
1653 | { |
1958 | { |
1654 | *cur = array_nextsize (elem, *cur, cnt); |
1959 | *cur = array_nextsize (elem, *cur, cnt); |
1655 | return ev_realloc (base, elem * *cur); |
1960 | return ev_realloc (base, elem * *cur); |
1656 | } |
1961 | } |
… | |
… | |
1659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1964 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1660 | |
1965 | |
1661 | #define array_needsize(type,base,cur,cnt,init) \ |
1966 | #define array_needsize(type,base,cur,cnt,init) \ |
1662 | if (expect_false ((cnt) > (cur))) \ |
1967 | if (expect_false ((cnt) > (cur))) \ |
1663 | { \ |
1968 | { \ |
1664 | int ecb_unused ocur_ = (cur); \ |
1969 | ecb_unused int ocur_ = (cur); \ |
1665 | (base) = (type *)array_realloc \ |
1970 | (base) = (type *)array_realloc \ |
1666 | (sizeof (type), (base), &(cur), (cnt)); \ |
1971 | (sizeof (type), (base), &(cur), (cnt)); \ |
1667 | init ((base) + (ocur_), (cur) - ocur_); \ |
1972 | init ((base) + (ocur_), (cur) - ocur_); \ |
1668 | } |
1973 | } |
1669 | |
1974 | |
… | |
… | |
1681 | 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 |
1682 | |
1987 | |
1683 | /*****************************************************************************/ |
1988 | /*****************************************************************************/ |
1684 | |
1989 | |
1685 | /* dummy callback for pending events */ |
1990 | /* dummy callback for pending events */ |
1686 | static void noinline |
1991 | noinline |
|
|
1992 | static void |
1687 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1993 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1688 | { |
1994 | { |
1689 | } |
1995 | } |
1690 | |
1996 | |
1691 | void noinline |
1997 | noinline |
|
|
1998 | void |
1692 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1999 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1693 | { |
2000 | { |
1694 | W w_ = (W)w; |
2001 | W w_ = (W)w; |
1695 | int pri = ABSPRI (w_); |
2002 | int pri = ABSPRI (w_); |
1696 | |
2003 | |
… | |
… | |
1826 | |
2133 | |
1827 | fdchangecnt = 0; |
2134 | fdchangecnt = 0; |
1828 | } |
2135 | } |
1829 | |
2136 | |
1830 | /* something about the given fd changed */ |
2137 | /* something about the given fd changed */ |
1831 | inline_size void |
2138 | inline_size |
|
|
2139 | void |
1832 | fd_change (EV_P_ int fd, int flags) |
2140 | fd_change (EV_P_ int fd, int flags) |
1833 | { |
2141 | { |
1834 | unsigned char reify = anfds [fd].reify; |
2142 | unsigned char reify = anfds [fd].reify; |
1835 | anfds [fd].reify |= flags; |
2143 | anfds [fd].reify |= flags; |
1836 | |
2144 | |
… | |
… | |
1841 | fdchanges [fdchangecnt - 1] = fd; |
2149 | fdchanges [fdchangecnt - 1] = fd; |
1842 | } |
2150 | } |
1843 | } |
2151 | } |
1844 | |
2152 | |
1845 | /* 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 */ |
1846 | inline_speed void ecb_cold |
2154 | inline_speed ecb_cold void |
1847 | fd_kill (EV_P_ int fd) |
2155 | fd_kill (EV_P_ int fd) |
1848 | { |
2156 | { |
1849 | ev_io *w; |
2157 | ev_io *w; |
1850 | |
2158 | |
1851 | while ((w = (ev_io *)anfds [fd].head)) |
2159 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1854 | 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); |
1855 | } |
2163 | } |
1856 | } |
2164 | } |
1857 | |
2165 | |
1858 | /* check whether the given fd is actually valid, for error recovery */ |
2166 | /* check whether the given fd is actually valid, for error recovery */ |
1859 | inline_size int ecb_cold |
2167 | inline_size ecb_cold int |
1860 | fd_valid (int fd) |
2168 | fd_valid (int fd) |
1861 | { |
2169 | { |
1862 | #ifdef _WIN32 |
2170 | #ifdef _WIN32 |
1863 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2171 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1864 | #else |
2172 | #else |
1865 | return fcntl (fd, F_GETFD) != -1; |
2173 | return fcntl (fd, F_GETFD) != -1; |
1866 | #endif |
2174 | #endif |
1867 | } |
2175 | } |
1868 | |
2176 | |
1869 | /* called on EBADF to verify fds */ |
2177 | /* called on EBADF to verify fds */ |
1870 | static void noinline ecb_cold |
2178 | noinline ecb_cold |
|
|
2179 | static void |
1871 | fd_ebadf (EV_P) |
2180 | fd_ebadf (EV_P) |
1872 | { |
2181 | { |
1873 | int fd; |
2182 | int fd; |
1874 | |
2183 | |
1875 | for (fd = 0; fd < anfdmax; ++fd) |
2184 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1877 | if (!fd_valid (fd) && errno == EBADF) |
2186 | if (!fd_valid (fd) && errno == EBADF) |
1878 | fd_kill (EV_A_ fd); |
2187 | fd_kill (EV_A_ fd); |
1879 | } |
2188 | } |
1880 | |
2189 | |
1881 | /* 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 */ |
1882 | static void noinline ecb_cold |
2191 | noinline ecb_cold |
|
|
2192 | static void |
1883 | fd_enomem (EV_P) |
2193 | fd_enomem (EV_P) |
1884 | { |
2194 | { |
1885 | int fd; |
2195 | int fd; |
1886 | |
2196 | |
1887 | for (fd = anfdmax; fd--; ) |
2197 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1891 | break; |
2201 | break; |
1892 | } |
2202 | } |
1893 | } |
2203 | } |
1894 | |
2204 | |
1895 | /* 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 */ |
1896 | static void noinline |
2206 | noinline |
|
|
2207 | static void |
1897 | fd_rearm_all (EV_P) |
2208 | fd_rearm_all (EV_P) |
1898 | { |
2209 | { |
1899 | int fd; |
2210 | int fd; |
1900 | |
2211 | |
1901 | for (fd = 0; fd < anfdmax; ++fd) |
2212 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2082 | |
2393 | |
2083 | /*****************************************************************************/ |
2394 | /*****************************************************************************/ |
2084 | |
2395 | |
2085 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2396 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2086 | |
2397 | |
2087 | static void noinline ecb_cold |
2398 | noinline ecb_cold |
|
|
2399 | static void |
2088 | evpipe_init (EV_P) |
2400 | evpipe_init (EV_P) |
2089 | { |
2401 | { |
2090 | if (!ev_is_active (&pipe_w)) |
2402 | if (!ev_is_active (&pipe_w)) |
2091 | { |
2403 | { |
2092 | int fds [2]; |
2404 | int fds [2]; |
… | |
… | |
2270 | #endif |
2582 | #endif |
2271 | |
2583 | |
2272 | ev_feed_signal (signum); |
2584 | ev_feed_signal (signum); |
2273 | } |
2585 | } |
2274 | |
2586 | |
2275 | void noinline |
2587 | noinline |
|
|
2588 | void |
2276 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2589 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2277 | { |
2590 | { |
2278 | WL w; |
2591 | WL w; |
2279 | |
2592 | |
2280 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2593 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
… | |
… | |
2397 | #endif |
2710 | #endif |
2398 | #if EV_USE_SELECT |
2711 | #if EV_USE_SELECT |
2399 | # include "ev_select.c" |
2712 | # include "ev_select.c" |
2400 | #endif |
2713 | #endif |
2401 | |
2714 | |
2402 | int ecb_cold |
2715 | ecb_cold int |
2403 | ev_version_major (void) EV_THROW |
2716 | ev_version_major (void) EV_THROW |
2404 | { |
2717 | { |
2405 | return EV_VERSION_MAJOR; |
2718 | return EV_VERSION_MAJOR; |
2406 | } |
2719 | } |
2407 | |
2720 | |
2408 | int ecb_cold |
2721 | ecb_cold int |
2409 | ev_version_minor (void) EV_THROW |
2722 | ev_version_minor (void) EV_THROW |
2410 | { |
2723 | { |
2411 | return EV_VERSION_MINOR; |
2724 | return EV_VERSION_MINOR; |
2412 | } |
2725 | } |
2413 | |
2726 | |
2414 | /* 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 */ |
2415 | int inline_size ecb_cold |
2728 | inline_size ecb_cold int |
2416 | enable_secure (void) |
2729 | enable_secure (void) |
2417 | { |
2730 | { |
2418 | #ifdef _WIN32 |
2731 | #ifdef _WIN32 |
2419 | return 0; |
2732 | return 0; |
2420 | #else |
2733 | #else |
2421 | return getuid () != geteuid () |
2734 | return getuid () != geteuid () |
2422 | || getgid () != getegid (); |
2735 | || getgid () != getegid (); |
2423 | #endif |
2736 | #endif |
2424 | } |
2737 | } |
2425 | |
2738 | |
2426 | unsigned int ecb_cold |
2739 | ecb_cold |
|
|
2740 | unsigned int |
2427 | ev_supported_backends (void) EV_THROW |
2741 | ev_supported_backends (void) EV_THROW |
2428 | { |
2742 | { |
2429 | unsigned int flags = 0; |
2743 | unsigned int flags = 0; |
2430 | |
2744 | |
2431 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2745 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
2435 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2749 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2436 | |
2750 | |
2437 | return flags; |
2751 | return flags; |
2438 | } |
2752 | } |
2439 | |
2753 | |
2440 | unsigned int ecb_cold |
2754 | ecb_cold |
|
|
2755 | unsigned int |
2441 | ev_recommended_backends (void) EV_THROW |
2756 | ev_recommended_backends (void) EV_THROW |
2442 | { |
2757 | { |
2443 | unsigned int flags = ev_supported_backends (); |
2758 | unsigned int flags = ev_supported_backends (); |
2444 | |
2759 | |
2445 | #ifndef __NetBSD__ |
2760 | #ifndef __NetBSD__ |
… | |
… | |
2457 | #endif |
2772 | #endif |
2458 | |
2773 | |
2459 | return flags; |
2774 | return flags; |
2460 | } |
2775 | } |
2461 | |
2776 | |
2462 | unsigned int ecb_cold |
2777 | ecb_cold |
|
|
2778 | unsigned int |
2463 | ev_embeddable_backends (void) EV_THROW |
2779 | ev_embeddable_backends (void) EV_THROW |
2464 | { |
2780 | { |
2465 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2781 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2466 | |
2782 | |
2467 | /* 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 */ |
… | |
… | |
2513 | { |
2829 | { |
2514 | return userdata; |
2830 | return userdata; |
2515 | } |
2831 | } |
2516 | |
2832 | |
2517 | void |
2833 | void |
2518 | 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 |
2519 | { |
2835 | { |
2520 | invoke_cb = invoke_pending_cb; |
2836 | invoke_cb = invoke_pending_cb; |
2521 | } |
2837 | } |
2522 | |
2838 | |
2523 | void |
2839 | void |
… | |
… | |
2527 | acquire_cb = acquire; |
2843 | acquire_cb = acquire; |
2528 | } |
2844 | } |
2529 | #endif |
2845 | #endif |
2530 | |
2846 | |
2531 | /* initialise a loop structure, must be zero-initialised */ |
2847 | /* initialise a loop structure, must be zero-initialised */ |
2532 | static void noinline ecb_cold |
2848 | noinline ecb_cold |
|
|
2849 | static void |
2533 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2850 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2534 | { |
2851 | { |
2535 | if (!backend) |
2852 | if (!backend) |
2536 | { |
2853 | { |
2537 | origflags = flags; |
2854 | origflags = flags; |
… | |
… | |
2624 | #endif |
2941 | #endif |
2625 | } |
2942 | } |
2626 | } |
2943 | } |
2627 | |
2944 | |
2628 | /* free up a loop structure */ |
2945 | /* free up a loop structure */ |
2629 | void ecb_cold |
2946 | ecb_cold |
|
|
2947 | void |
2630 | ev_loop_destroy (EV_P) |
2948 | ev_loop_destroy (EV_P) |
2631 | { |
2949 | { |
2632 | int i; |
2950 | int i; |
2633 | |
2951 | |
2634 | #if EV_MULTIPLICITY |
2952 | #if EV_MULTIPLICITY |
… | |
… | |
2755 | #if EV_USE_INOTIFY |
3073 | #if EV_USE_INOTIFY |
2756 | infy_fork (EV_A); |
3074 | infy_fork (EV_A); |
2757 | #endif |
3075 | #endif |
2758 | |
3076 | |
2759 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3077 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2760 | if (ev_is_active (&pipe_w)) |
3078 | if (ev_is_active (&pipe_w) && postfork != 2) |
2761 | { |
3079 | { |
2762 | /* 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 */ |
2763 | |
3081 | |
2764 | ev_ref (EV_A); |
3082 | ev_ref (EV_A); |
2765 | ev_io_stop (EV_A_ &pipe_w); |
3083 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2776 | postfork = 0; |
3094 | postfork = 0; |
2777 | } |
3095 | } |
2778 | |
3096 | |
2779 | #if EV_MULTIPLICITY |
3097 | #if EV_MULTIPLICITY |
2780 | |
3098 | |
|
|
3099 | ecb_cold |
2781 | struct ev_loop * ecb_cold |
3100 | struct ev_loop * |
2782 | ev_loop_new (unsigned int flags) EV_THROW |
3101 | ev_loop_new (unsigned int flags) EV_THROW |
2783 | { |
3102 | { |
2784 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3103 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2785 | |
3104 | |
2786 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3105 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2794 | } |
3113 | } |
2795 | |
3114 | |
2796 | #endif /* multiplicity */ |
3115 | #endif /* multiplicity */ |
2797 | |
3116 | |
2798 | #if EV_VERIFY |
3117 | #if EV_VERIFY |
2799 | static void noinline ecb_cold |
3118 | noinline ecb_cold |
|
|
3119 | static void |
2800 | verify_watcher (EV_P_ W w) |
3120 | verify_watcher (EV_P_ W w) |
2801 | { |
3121 | { |
2802 | 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)); |
2803 | |
3123 | |
2804 | if (w->pending) |
3124 | if (w->pending) |
2805 | 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)); |
2806 | } |
3126 | } |
2807 | |
3127 | |
2808 | static void noinline ecb_cold |
3128 | noinline ecb_cold |
|
|
3129 | static void |
2809 | verify_heap (EV_P_ ANHE *heap, int N) |
3130 | verify_heap (EV_P_ ANHE *heap, int N) |
2810 | { |
3131 | { |
2811 | int i; |
3132 | int i; |
2812 | |
3133 | |
2813 | for (i = HEAP0; i < N + HEAP0; ++i) |
3134 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2818 | |
3139 | |
2819 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3140 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2820 | } |
3141 | } |
2821 | } |
3142 | } |
2822 | |
3143 | |
2823 | static void noinline ecb_cold |
3144 | noinline ecb_cold |
|
|
3145 | static void |
2824 | array_verify (EV_P_ W *ws, int cnt) |
3146 | array_verify (EV_P_ W *ws, int cnt) |
2825 | { |
3147 | { |
2826 | while (cnt--) |
3148 | while (cnt--) |
2827 | { |
3149 | { |
2828 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3150 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2917 | #endif |
3239 | #endif |
2918 | } |
3240 | } |
2919 | #endif |
3241 | #endif |
2920 | |
3242 | |
2921 | #if EV_MULTIPLICITY |
3243 | #if EV_MULTIPLICITY |
|
|
3244 | ecb_cold |
2922 | struct ev_loop * ecb_cold |
3245 | struct ev_loop * |
2923 | #else |
3246 | #else |
2924 | int |
3247 | int |
2925 | #endif |
3248 | #endif |
2926 | ev_default_loop (unsigned int flags) EV_THROW |
3249 | ev_default_loop (unsigned int flags) EV_THROW |
2927 | { |
3250 | { |
… | |
… | |
2975 | count += pendingcnt [pri]; |
3298 | count += pendingcnt [pri]; |
2976 | |
3299 | |
2977 | return count; |
3300 | return count; |
2978 | } |
3301 | } |
2979 | |
3302 | |
2980 | void noinline |
3303 | noinline |
|
|
3304 | void |
2981 | ev_invoke_pending (EV_P) |
3305 | ev_invoke_pending (EV_P) |
2982 | { |
3306 | { |
2983 | pendingpri = NUMPRI; |
3307 | pendingpri = NUMPRI; |
2984 | |
3308 | |
2985 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3309 | do |
2986 | { |
3310 | { |
2987 | --pendingpri; |
3311 | --pendingpri; |
2988 | |
3312 | |
|
|
3313 | /* pendingpri possibly gets modified in the inner loop */ |
2989 | while (pendingcnt [pendingpri]) |
3314 | while (pendingcnt [pendingpri]) |
2990 | { |
3315 | { |
2991 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3316 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2992 | |
3317 | |
2993 | p->w->pending = 0; |
3318 | p->w->pending = 0; |
2994 | EV_CB_INVOKE (p->w, p->events); |
3319 | EV_CB_INVOKE (p->w, p->events); |
2995 | EV_FREQUENT_CHECK; |
3320 | EV_FREQUENT_CHECK; |
2996 | } |
3321 | } |
2997 | } |
3322 | } |
|
|
3323 | while (pendingpri); |
2998 | } |
3324 | } |
2999 | |
3325 | |
3000 | #if EV_IDLE_ENABLE |
3326 | #if EV_IDLE_ENABLE |
3001 | /* make idle watchers pending. this handles the "call-idle */ |
3327 | /* make idle watchers pending. this handles the "call-idle */ |
3002 | /* only when higher priorities are idle" logic */ |
3328 | /* only when higher priorities are idle" logic */ |
… | |
… | |
3060 | } |
3386 | } |
3061 | } |
3387 | } |
3062 | |
3388 | |
3063 | #if EV_PERIODIC_ENABLE |
3389 | #if EV_PERIODIC_ENABLE |
3064 | |
3390 | |
3065 | static void noinline |
3391 | noinline |
|
|
3392 | static void |
3066 | periodic_recalc (EV_P_ ev_periodic *w) |
3393 | periodic_recalc (EV_P_ ev_periodic *w) |
3067 | { |
3394 | { |
3068 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3395 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3069 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3396 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3070 | |
3397 | |
… | |
… | |
3128 | } |
3455 | } |
3129 | } |
3456 | } |
3130 | |
3457 | |
3131 | /* simply recalculate all periodics */ |
3458 | /* simply recalculate all periodics */ |
3132 | /* 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? */ |
3133 | static void noinline ecb_cold |
3460 | noinline ecb_cold |
|
|
3461 | static void |
3134 | periodics_reschedule (EV_P) |
3462 | periodics_reschedule (EV_P) |
3135 | { |
3463 | { |
3136 | int i; |
3464 | int i; |
3137 | |
3465 | |
3138 | /* adjust periodics after time jump */ |
3466 | /* adjust periodics after time jump */ |
… | |
… | |
3151 | reheap (periodics, periodiccnt); |
3479 | reheap (periodics, periodiccnt); |
3152 | } |
3480 | } |
3153 | #endif |
3481 | #endif |
3154 | |
3482 | |
3155 | /* adjust all timers by a given offset */ |
3483 | /* adjust all timers by a given offset */ |
3156 | static void noinline ecb_cold |
3484 | noinline ecb_cold |
|
|
3485 | static void |
3157 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3486 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3158 | { |
3487 | { |
3159 | int i; |
3488 | int i; |
3160 | |
3489 | |
3161 | for (i = 0; i < timercnt; ++i) |
3490 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3529 | w->active = 0; |
3858 | w->active = 0; |
3530 | } |
3859 | } |
3531 | |
3860 | |
3532 | /*****************************************************************************/ |
3861 | /*****************************************************************************/ |
3533 | |
3862 | |
3534 | void noinline |
3863 | noinline |
|
|
3864 | void |
3535 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3865 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3536 | { |
3866 | { |
3537 | int fd = w->fd; |
3867 | int fd = w->fd; |
3538 | |
3868 | |
3539 | if (expect_false (ev_is_active (w))) |
3869 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3555 | w->events &= ~EV__IOFDSET; |
3885 | w->events &= ~EV__IOFDSET; |
3556 | |
3886 | |
3557 | EV_FREQUENT_CHECK; |
3887 | EV_FREQUENT_CHECK; |
3558 | } |
3888 | } |
3559 | |
3889 | |
3560 | void noinline |
3890 | noinline |
|
|
3891 | void |
3561 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3892 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3562 | { |
3893 | { |
3563 | clear_pending (EV_A_ (W)w); |
3894 | clear_pending (EV_A_ (W)w); |
3564 | if (expect_false (!ev_is_active (w))) |
3895 | if (expect_false (!ev_is_active (w))) |
3565 | return; |
3896 | return; |
… | |
… | |
3574 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3905 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3575 | |
3906 | |
3576 | EV_FREQUENT_CHECK; |
3907 | EV_FREQUENT_CHECK; |
3577 | } |
3908 | } |
3578 | |
3909 | |
3579 | void noinline |
3910 | noinline |
|
|
3911 | void |
3580 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3912 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3581 | { |
3913 | { |
3582 | if (expect_false (ev_is_active (w))) |
3914 | if (expect_false (ev_is_active (w))) |
3583 | return; |
3915 | return; |
3584 | |
3916 | |
… | |
… | |
3598 | EV_FREQUENT_CHECK; |
3930 | EV_FREQUENT_CHECK; |
3599 | |
3931 | |
3600 | /*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));*/ |
3601 | } |
3933 | } |
3602 | |
3934 | |
3603 | void noinline |
3935 | noinline |
|
|
3936 | void |
3604 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3937 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3605 | { |
3938 | { |
3606 | clear_pending (EV_A_ (W)w); |
3939 | clear_pending (EV_A_ (W)w); |
3607 | if (expect_false (!ev_is_active (w))) |
3940 | if (expect_false (!ev_is_active (w))) |
3608 | return; |
3941 | return; |
… | |
… | |
3628 | ev_stop (EV_A_ (W)w); |
3961 | ev_stop (EV_A_ (W)w); |
3629 | |
3962 | |
3630 | EV_FREQUENT_CHECK; |
3963 | EV_FREQUENT_CHECK; |
3631 | } |
3964 | } |
3632 | |
3965 | |
3633 | void noinline |
3966 | noinline |
|
|
3967 | void |
3634 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3968 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3635 | { |
3969 | { |
3636 | EV_FREQUENT_CHECK; |
3970 | EV_FREQUENT_CHECK; |
3637 | |
3971 | |
3638 | clear_pending (EV_A_ (W)w); |
3972 | clear_pending (EV_A_ (W)w); |
… | |
… | |
3662 | { |
3996 | { |
3663 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3997 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3664 | } |
3998 | } |
3665 | |
3999 | |
3666 | #if EV_PERIODIC_ENABLE |
4000 | #if EV_PERIODIC_ENABLE |
3667 | void noinline |
4001 | noinline |
|
|
4002 | void |
3668 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
4003 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3669 | { |
4004 | { |
3670 | if (expect_false (ev_is_active (w))) |
4005 | if (expect_false (ev_is_active (w))) |
3671 | return; |
4006 | return; |
3672 | |
4007 | |
… | |
… | |
3692 | EV_FREQUENT_CHECK; |
4027 | EV_FREQUENT_CHECK; |
3693 | |
4028 | |
3694 | /*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));*/ |
3695 | } |
4030 | } |
3696 | |
4031 | |
3697 | void noinline |
4032 | noinline |
|
|
4033 | void |
3698 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4034 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3699 | { |
4035 | { |
3700 | clear_pending (EV_A_ (W)w); |
4036 | clear_pending (EV_A_ (W)w); |
3701 | if (expect_false (!ev_is_active (w))) |
4037 | if (expect_false (!ev_is_active (w))) |
3702 | return; |
4038 | return; |
… | |
… | |
3720 | ev_stop (EV_A_ (W)w); |
4056 | ev_stop (EV_A_ (W)w); |
3721 | |
4057 | |
3722 | EV_FREQUENT_CHECK; |
4058 | EV_FREQUENT_CHECK; |
3723 | } |
4059 | } |
3724 | |
4060 | |
3725 | void noinline |
4061 | noinline |
|
|
4062 | void |
3726 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4063 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3727 | { |
4064 | { |
3728 | /* TODO: use adjustheap and recalculation */ |
4065 | /* TODO: use adjustheap and recalculation */ |
3729 | ev_periodic_stop (EV_A_ w); |
4066 | ev_periodic_stop (EV_A_ w); |
3730 | ev_periodic_start (EV_A_ w); |
4067 | ev_periodic_start (EV_A_ w); |
… | |
… | |
3735 | # define SA_RESTART 0 |
4072 | # define SA_RESTART 0 |
3736 | #endif |
4073 | #endif |
3737 | |
4074 | |
3738 | #if EV_SIGNAL_ENABLE |
4075 | #if EV_SIGNAL_ENABLE |
3739 | |
4076 | |
3740 | void noinline |
4077 | noinline |
|
|
4078 | void |
3741 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4079 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3742 | { |
4080 | { |
3743 | if (expect_false (ev_is_active (w))) |
4081 | if (expect_false (ev_is_active (w))) |
3744 | return; |
4082 | return; |
3745 | |
4083 | |
… | |
… | |
3817 | } |
4155 | } |
3818 | |
4156 | |
3819 | EV_FREQUENT_CHECK; |
4157 | EV_FREQUENT_CHECK; |
3820 | } |
4158 | } |
3821 | |
4159 | |
3822 | void noinline |
4160 | noinline |
|
|
4161 | void |
3823 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4162 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3824 | { |
4163 | { |
3825 | clear_pending (EV_A_ (W)w); |
4164 | clear_pending (EV_A_ (W)w); |
3826 | if (expect_false (!ev_is_active (w))) |
4165 | if (expect_false (!ev_is_active (w))) |
3827 | return; |
4166 | return; |
… | |
… | |
3903 | |
4242 | |
3904 | #define DEF_STAT_INTERVAL 5.0074891 |
4243 | #define DEF_STAT_INTERVAL 5.0074891 |
3905 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4244 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3906 | #define MIN_STAT_INTERVAL 0.1074891 |
4245 | #define MIN_STAT_INTERVAL 0.1074891 |
3907 | |
4246 | |
3908 | 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); |
3909 | |
4248 | |
3910 | #if EV_USE_INOTIFY |
4249 | #if EV_USE_INOTIFY |
3911 | |
4250 | |
3912 | /* 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 */ |
3913 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4252 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3914 | |
4253 | |
3915 | static void noinline |
4254 | noinline |
|
|
4255 | static void |
3916 | infy_add (EV_P_ ev_stat *w) |
4256 | infy_add (EV_P_ ev_stat *w) |
3917 | { |
4257 | { |
3918 | w->wd = inotify_add_watch (fs_fd, w->path, |
4258 | w->wd = inotify_add_watch (fs_fd, w->path, |
3919 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4259 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3920 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4260 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
3984 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4324 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
3985 | ev_timer_again (EV_A_ &w->timer); |
4325 | ev_timer_again (EV_A_ &w->timer); |
3986 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4326 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
3987 | } |
4327 | } |
3988 | |
4328 | |
3989 | static void noinline |
4329 | noinline |
|
|
4330 | static void |
3990 | infy_del (EV_P_ ev_stat *w) |
4331 | infy_del (EV_P_ ev_stat *w) |
3991 | { |
4332 | { |
3992 | int slot; |
4333 | int slot; |
3993 | int wd = w->wd; |
4334 | int wd = w->wd; |
3994 | |
4335 | |
… | |
… | |
4001 | |
4342 | |
4002 | /* remove this watcher, if others are watching it, they will rearm */ |
4343 | /* remove this watcher, if others are watching it, they will rearm */ |
4003 | inotify_rm_watch (fs_fd, wd); |
4344 | inotify_rm_watch (fs_fd, wd); |
4004 | } |
4345 | } |
4005 | |
4346 | |
4006 | static void noinline |
4347 | noinline |
|
|
4348 | static void |
4007 | 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) |
4008 | { |
4350 | { |
4009 | if (slot < 0) |
4351 | if (slot < 0) |
4010 | /* overflow, need to check for all hash slots */ |
4352 | /* overflow, need to check for all hash slots */ |
4011 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4353 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4047 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4389 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4048 | ofs += sizeof (struct inotify_event) + ev->len; |
4390 | ofs += sizeof (struct inotify_event) + ev->len; |
4049 | } |
4391 | } |
4050 | } |
4392 | } |
4051 | |
4393 | |
4052 | inline_size void ecb_cold |
4394 | inline_size ecb_cold |
|
|
4395 | void |
4053 | ev_check_2625 (EV_P) |
4396 | ev_check_2625 (EV_P) |
4054 | { |
4397 | { |
4055 | /* kernels < 2.6.25 are borked |
4398 | /* kernels < 2.6.25 are borked |
4056 | * 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 |
4057 | */ |
4400 | */ |
… | |
… | |
4155 | w->attr.st_nlink = 0; |
4498 | w->attr.st_nlink = 0; |
4156 | else if (!w->attr.st_nlink) |
4499 | else if (!w->attr.st_nlink) |
4157 | w->attr.st_nlink = 1; |
4500 | w->attr.st_nlink = 1; |
4158 | } |
4501 | } |
4159 | |
4502 | |
4160 | static void noinline |
4503 | noinline |
|
|
4504 | static void |
4161 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4505 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4162 | { |
4506 | { |
4163 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4507 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4164 | |
4508 | |
4165 | ev_statdata prev = w->attr; |
4509 | ev_statdata prev = w->attr; |
… | |
… | |
4375 | EV_FREQUENT_CHECK; |
4719 | EV_FREQUENT_CHECK; |
4376 | } |
4720 | } |
4377 | #endif |
4721 | #endif |
4378 | |
4722 | |
4379 | #if EV_EMBED_ENABLE |
4723 | #if EV_EMBED_ENABLE |
4380 | void noinline |
4724 | noinline |
|
|
4725 | void |
4381 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4726 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4382 | { |
4727 | { |
4383 | ev_run (w->other, EVRUN_NOWAIT); |
4728 | ev_run (w->other, EVRUN_NOWAIT); |
4384 | } |
4729 | } |
4385 | |
4730 | |
… | |
… | |
4682 | } |
5027 | } |
4683 | |
5028 | |
4684 | /*****************************************************************************/ |
5029 | /*****************************************************************************/ |
4685 | |
5030 | |
4686 | #if EV_WALK_ENABLE |
5031 | #if EV_WALK_ENABLE |
4687 | void ecb_cold |
5032 | ecb_cold |
|
|
5033 | void |
4688 | 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 |
4689 | { |
5035 | { |
4690 | int i, j; |
5036 | int i, j; |
4691 | ev_watcher_list *wl, *wn; |
5037 | ev_watcher_list *wl, *wn; |
4692 | |
5038 | |