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 |
|
|
51 | # endif |
51 | # endif |
52 | # endif |
52 | #endif |
|
|
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 |
… | |
… | |
201 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
202 | # include <unistd.h> |
202 | # include <unistd.h> |
203 | #else |
203 | #else |
204 | # include <io.h> |
204 | # include <io.h> |
205 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
206 | # include <windows.h> |
207 | # include <windows.h> |
207 | # include <winsock2.h> |
|
|
208 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
210 | # endif |
210 | # endif |
211 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
212 | #endif |
212 | #endif |
… | |
… | |
241 | #elif defined SIGARRAYSIZE |
241 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
243 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
245 | #else |
246 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
|
|
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
247 | #endif |
251 | |
248 | |
252 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
254 | #endif |
251 | #endif |
255 | |
252 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
256 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
258 | # endif |
|
|
259 | #endif |
|
|
260 | |
|
|
261 | #if !(_POSIX_TIMERS > 0) |
|
|
262 | # ifndef EV_USE_MONOTONIC |
|
|
263 | # define EV_USE_MONOTONIC 0 |
|
|
264 | # endif |
|
|
265 | # ifndef EV_USE_REALTIME |
|
|
266 | # define EV_USE_REALTIME 0 |
261 | # endif |
267 | # endif |
262 | #endif |
268 | #endif |
263 | |
269 | |
264 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
361 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
362 | #endif |
357 | |
363 | |
358 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | #ifdef ANDROID |
|
|
369 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
370 | # undef EV_USE_SELECT |
|
|
371 | # define EV_USE_SELECT 0 |
|
|
372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
373 | # undef EV_USE_CLOCK_SYSCALL |
|
|
374 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
375 | #endif |
|
|
376 | |
|
|
377 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
360 | #endif |
382 | #endif |
361 | |
383 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
373 | # endif |
395 | # endif |
374 | #endif |
396 | #endif |
375 | |
397 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
399 | |
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
|
|
384 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
403 | #endif |
388 | |
404 | |
… | |
… | |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
410 | # ifndef IN_DONT_FOLLOW |
426 | # ifndef IN_DONT_FOLLOW |
411 | # undef EV_USE_INOTIFY |
427 | # undef EV_USE_INOTIFY |
412 | # define EV_USE_INOTIFY 0 |
428 | # define EV_USE_INOTIFY 0 |
413 | # endif |
429 | # endif |
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_SELECT_IS_WINSOCKET |
|
|
417 | # include <winsock.h> |
|
|
418 | #endif |
430 | #endif |
419 | |
431 | |
420 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
421 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
422 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
479 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
480 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
481 | /* |
493 | /* |
482 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
483 | * |
495 | * |
484 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
485 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
486 | * All rights reserved. |
498 | * All rights reserved. |
487 | * |
499 | * |
488 | * Redistribution and use in source and binary forms, with or without modifica- |
500 | * Redistribution and use in source and binary forms, with or without modifica- |
489 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
503 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
504 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
505 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
506 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
507 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
520 | * |
|
|
521 | * Alternatively, the contents of this file may be used under the terms of |
|
|
522 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
523 | * in which case the provisions of the GPL are applicable instead of |
|
|
524 | * the above. If you wish to allow the use of your version of this file |
|
|
525 | * only under the terms of the GPL and not to allow others to use your |
|
|
526 | * version of this file under the BSD license, indicate your decision |
|
|
527 | * by deleting the provisions above and replace them with the notice |
|
|
528 | * and other provisions required by the GPL. If you do not delete the |
|
|
529 | * provisions above, a recipient may use your version of this file under |
|
|
530 | * either the BSD or the GPL. |
508 | */ |
531 | */ |
509 | |
532 | |
510 | #ifndef ECB_H |
533 | #ifndef ECB_H |
511 | #define ECB_H |
534 | #define ECB_H |
|
|
535 | |
|
|
536 | /* 16 bits major, 16 bits minor */ |
|
|
537 | #define ECB_VERSION 0x00010004 |
512 | |
538 | |
513 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
514 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
515 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
516 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
522 | typedef unsigned long long uint64_t; |
548 | typedef unsigned long long uint64_t; |
523 | #else /* _MSC_VER || __BORLANDC__ */ |
549 | #else /* _MSC_VER || __BORLANDC__ */ |
524 | typedef signed __int64 int64_t; |
550 | typedef signed __int64 int64_t; |
525 | typedef unsigned __int64 uint64_t; |
551 | typedef unsigned __int64 uint64_t; |
526 | #endif |
552 | #endif |
|
|
553 | #ifdef _WIN64 |
|
|
554 | #define ECB_PTRSIZE 8 |
|
|
555 | typedef uint64_t uintptr_t; |
|
|
556 | typedef int64_t intptr_t; |
|
|
557 | #else |
|
|
558 | #define ECB_PTRSIZE 4 |
|
|
559 | typedef uint32_t uintptr_t; |
|
|
560 | typedef int32_t intptr_t; |
|
|
561 | #endif |
527 | #else |
562 | #else |
528 | #include <inttypes.h> |
563 | #include <inttypes.h> |
|
|
564 | #if UINTMAX_MAX > 0xffffffffU |
|
|
565 | #define ECB_PTRSIZE 8 |
|
|
566 | #else |
|
|
567 | #define ECB_PTRSIZE 4 |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
573 | |
|
|
574 | /* work around x32 idiocy by defining proper macros */ |
|
|
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
576 | #if _ILP32 |
|
|
577 | #define ECB_AMD64_X32 1 |
|
|
578 | #else |
|
|
579 | #define ECB_AMD64 1 |
|
|
580 | #endif |
529 | #endif |
581 | #endif |
530 | |
582 | |
531 | /* many compilers define _GNUC_ to some versions but then only implement |
583 | /* many compilers define _GNUC_ to some versions but then only implement |
532 | * what their idiot authors think are the "more important" extensions, |
584 | * what their idiot authors think are the "more important" extensions, |
533 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
534 | * or so. |
586 | * or so. |
535 | * we try to detect these and simply assume they are not gcc - if they have |
587 | * we try to detect these and simply assume they are not gcc - if they have |
536 | * an issue with that they should have done it right in the first place. |
588 | * an issue with that they should have done it right in the first place. |
537 | */ |
589 | */ |
538 | #ifndef ECB_GCC_VERSION |
|
|
539 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
540 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
541 | #else |
592 | #else |
542 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
543 | #endif |
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #define ECB_CPP (__cplusplus+0) |
|
|
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
612 | |
|
|
613 | #if ECB_CPP |
|
|
614 | #define ECB_C 0 |
|
|
615 | #define ECB_STDC_VERSION 0 |
|
|
616 | #else |
|
|
617 | #define ECB_C 1 |
|
|
618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
623 | |
|
|
624 | #if ECB_CPP |
|
|
625 | #define ECB_EXTERN_C extern "C" |
|
|
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
627 | #define ECB_EXTERN_C_END } |
|
|
628 | #else |
|
|
629 | #define ECB_EXTERN_C extern |
|
|
630 | #define ECB_EXTERN_C_BEG |
|
|
631 | #define ECB_EXTERN_C_END |
544 | #endif |
632 | #endif |
545 | |
633 | |
546 | /*****************************************************************************/ |
634 | /*****************************************************************************/ |
547 | |
635 | |
548 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
549 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
550 | |
638 | |
551 | #if ECB_NO_THREADS |
639 | #if ECB_NO_THREADS |
552 | # define ECB_NO_SMP 1 |
640 | #define ECB_NO_SMP 1 |
553 | #endif |
641 | #endif |
554 | |
642 | |
555 | #if ECB_NO_THREADS || ECB_NO_SMP |
643 | #if ECB_NO_SMP |
556 | #define ECB_MEMORY_FENCE do { } while (0) |
644 | #define ECB_MEMORY_FENCE do { } while (0) |
557 | #endif |
645 | #endif |
558 | |
646 | |
559 | #ifndef ECB_MEMORY_FENCE |
647 | #ifndef ECB_MEMORY_FENCE |
560 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
648 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
561 | #if __i386 || __i386__ |
649 | #if __i386 || __i386__ |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
650 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
651 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
564 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
652 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
565 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
653 | #elif ECB_GCC_AMD64 |
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
654 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
567 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
655 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
568 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
656 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
569 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
657 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
570 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
658 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
571 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
659 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
572 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
660 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
573 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
661 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
574 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
662 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
575 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
663 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
576 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
664 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
665 | #elif __aarch64__ |
|
|
666 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
577 | #elif __sparc || __sparc__ |
667 | #elif (__sparc || __sparc__) && !__sparcv8 |
578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
668 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
579 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
669 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
580 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
670 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
581 | #elif defined __s390__ || defined __s390x__ |
671 | #elif defined __s390__ || defined __s390x__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
672 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
583 | #elif defined __mips__ |
673 | #elif defined __mips__ |
|
|
674 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
675 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
584 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
676 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
585 | #elif defined __alpha__ |
677 | #elif defined __alpha__ |
586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
679 | #elif defined __hppa__ |
|
|
680 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
681 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
682 | #elif defined __ia64__ |
|
|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
684 | #elif defined __m68k__ |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
686 | #elif defined __m88k__ |
|
|
687 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
688 | #elif defined __sh__ |
|
|
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
587 | #endif |
690 | #endif |
588 | #endif |
691 | #endif |
589 | #endif |
692 | #endif |
590 | |
693 | |
591 | #ifndef ECB_MEMORY_FENCE |
694 | #ifndef ECB_MEMORY_FENCE |
|
|
695 | #if ECB_GCC_VERSION(4,7) |
|
|
696 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
697 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
698 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
699 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
700 | |
|
|
701 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
702 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
703 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
704 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
705 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
706 | |
592 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
707 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
593 | #define ECB_MEMORY_FENCE __sync_synchronize () |
708 | #define ECB_MEMORY_FENCE __sync_synchronize () |
594 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
709 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
595 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
710 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
711 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
712 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
713 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
714 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
596 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
715 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
597 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
716 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
598 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
717 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
599 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
718 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
600 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
719 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
610 | #define ECB_MEMORY_FENCE __sync () |
729 | #define ECB_MEMORY_FENCE __sync () |
611 | #endif |
730 | #endif |
612 | #endif |
731 | #endif |
613 | |
732 | |
614 | #ifndef ECB_MEMORY_FENCE |
733 | #ifndef ECB_MEMORY_FENCE |
|
|
734 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
735 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
736 | /* not just C11 atomics and atomic accesses */ |
|
|
737 | #include <stdatomic.h> |
|
|
738 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
739 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
740 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
741 | /* for most usages, or gcc and clang have a bug */ |
|
|
742 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
743 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
744 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
745 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
746 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
747 | #endif |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | #ifndef ECB_MEMORY_FENCE |
615 | #if !ECB_AVOID_PTHREADS |
751 | #if !ECB_AVOID_PTHREADS |
616 | /* |
752 | /* |
617 | * if you get undefined symbol references to pthread_mutex_lock, |
753 | * if you get undefined symbol references to pthread_mutex_lock, |
618 | * or failure to find pthread.h, then you should implement |
754 | * or failure to find pthread.h, then you should implement |
619 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
755 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
637 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
773 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
638 | #endif |
774 | #endif |
639 | |
775 | |
640 | /*****************************************************************************/ |
776 | /*****************************************************************************/ |
641 | |
777 | |
642 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
778 | #if ECB_CPP |
643 | |
|
|
644 | #if __cplusplus |
|
|
645 | #define ecb_inline static inline |
779 | #define ecb_inline static inline |
646 | #elif ECB_GCC_VERSION(2,5) |
780 | #elif ECB_GCC_VERSION(2,5) |
647 | #define ecb_inline static __inline__ |
781 | #define ecb_inline static __inline__ |
648 | #elif ECB_C99 |
782 | #elif ECB_C99 |
649 | #define ecb_inline static inline |
783 | #define ecb_inline static inline |
… | |
… | |
663 | |
797 | |
664 | #define ECB_CONCAT_(a, b) a ## b |
798 | #define ECB_CONCAT_(a, b) a ## b |
665 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
799 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
666 | #define ECB_STRINGIFY_(a) # a |
800 | #define ECB_STRINGIFY_(a) # a |
667 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
801 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
802 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
668 | |
803 | |
669 | #define ecb_function_ ecb_inline |
804 | #define ecb_function_ ecb_inline |
670 | |
805 | |
671 | #if ECB_GCC_VERSION(3,1) |
806 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
672 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
807 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
808 | #else |
|
|
809 | #define ecb_attribute(attrlist) |
|
|
810 | #endif |
|
|
811 | |
|
|
812 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
673 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
813 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
814 | #else |
|
|
815 | /* possible C11 impl for integral types |
|
|
816 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
817 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
818 | |
|
|
819 | #define ecb_is_constant(expr) 0 |
|
|
820 | #endif |
|
|
821 | |
|
|
822 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
674 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
823 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
824 | #else |
|
|
825 | #define ecb_expect(expr,value) (expr) |
|
|
826 | #endif |
|
|
827 | |
|
|
828 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
675 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
829 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
676 | #else |
830 | #else |
677 | #define ecb_attribute(attrlist) |
|
|
678 | #define ecb_is_constant(expr) 0 |
|
|
679 | #define ecb_expect(expr,value) (expr) |
|
|
680 | #define ecb_prefetch(addr,rw,locality) |
831 | #define ecb_prefetch(addr,rw,locality) |
681 | #endif |
832 | #endif |
682 | |
833 | |
683 | /* no emulation for ecb_decltype */ |
834 | /* no emulation for ecb_decltype */ |
684 | #if ECB_GCC_VERSION(4,5) |
835 | #if ECB_CPP11 |
|
|
836 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
837 | template<class T> struct ecb_decltype_t { typedef T type; }; |
685 | #define ecb_decltype(x) __decltype(x) |
838 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
686 | #elif ECB_GCC_VERSION(3,0) |
839 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
687 | #define ecb_decltype(x) __typeof(x) |
840 | #define ecb_decltype(x) __typeof__ (x) |
688 | #endif |
841 | #endif |
689 | |
842 | |
|
|
843 | #if _MSC_VER >= 1300 |
|
|
844 | #define ecb_deprecated __declspec (deprecated) |
|
|
845 | #else |
|
|
846 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
847 | #endif |
|
|
848 | |
|
|
849 | #if __MSC_VER >= 1500 |
|
|
850 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
851 | #elif ECB_GCC_VERSION(4,5) |
|
|
852 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
853 | #else |
|
|
854 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
855 | #endif |
|
|
856 | |
|
|
857 | #if _MSC_VER >= 1400 |
|
|
858 | #define ecb_noinline __declspec (noinline) |
|
|
859 | #else |
690 | #define ecb_noinline ecb_attribute ((__noinline__)) |
860 | #define ecb_noinline ecb_attribute ((__noinline__)) |
691 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
861 | #endif |
|
|
862 | |
692 | #define ecb_unused ecb_attribute ((__unused__)) |
863 | #define ecb_unused ecb_attribute ((__unused__)) |
693 | #define ecb_const ecb_attribute ((__const__)) |
864 | #define ecb_const ecb_attribute ((__const__)) |
694 | #define ecb_pure ecb_attribute ((__pure__)) |
865 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
866 | |
|
|
867 | #if ECB_C11 || __IBMC_NORETURN |
|
|
868 | /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */ |
|
|
869 | #define ecb_noreturn _Noreturn |
|
|
870 | #elif ECB_CPP11 |
|
|
871 | #define ecb_noreturn [[noreturn]] |
|
|
872 | #elif _MSC_VER >= 1200 |
|
|
873 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
874 | #define ecb_noreturn __declspec (noreturn) |
|
|
875 | #else |
|
|
876 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
877 | #endif |
695 | |
878 | |
696 | #if ECB_GCC_VERSION(4,3) |
879 | #if ECB_GCC_VERSION(4,3) |
697 | #define ecb_artificial ecb_attribute ((__artificial__)) |
880 | #define ecb_artificial ecb_attribute ((__artificial__)) |
698 | #define ecb_hot ecb_attribute ((__hot__)) |
881 | #define ecb_hot ecb_attribute ((__hot__)) |
699 | #define ecb_cold ecb_attribute ((__cold__)) |
882 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
711 | /* for compatibility to the rest of the world */ |
894 | /* for compatibility to the rest of the world */ |
712 | #define ecb_likely(expr) ecb_expect_true (expr) |
895 | #define ecb_likely(expr) ecb_expect_true (expr) |
713 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
896 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
714 | |
897 | |
715 | /* count trailing zero bits and count # of one bits */ |
898 | /* count trailing zero bits and count # of one bits */ |
716 | #if ECB_GCC_VERSION(3,4) |
899 | #if ECB_GCC_VERSION(3,4) \ |
|
|
900 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
901 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
902 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
717 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
903 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
718 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
904 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
719 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
905 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
720 | #define ecb_ctz32(x) __builtin_ctz (x) |
906 | #define ecb_ctz32(x) __builtin_ctz (x) |
721 | #define ecb_ctz64(x) __builtin_ctzll (x) |
907 | #define ecb_ctz64(x) __builtin_ctzll (x) |
722 | #define ecb_popcount32(x) __builtin_popcount (x) |
908 | #define ecb_popcount32(x) __builtin_popcount (x) |
723 | /* no popcountll */ |
909 | /* no popcountll */ |
724 | #else |
910 | #else |
725 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
911 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
726 | ecb_function_ int |
912 | ecb_function_ ecb_const int |
727 | ecb_ctz32 (uint32_t x) |
913 | ecb_ctz32 (uint32_t x) |
728 | { |
914 | { |
729 | int r = 0; |
915 | int r = 0; |
730 | |
916 | |
731 | x &= ~x + 1; /* this isolates the lowest bit */ |
917 | x &= ~x + 1; /* this isolates the lowest bit */ |
… | |
… | |
745 | #endif |
931 | #endif |
746 | |
932 | |
747 | return r; |
933 | return r; |
748 | } |
934 | } |
749 | |
935 | |
750 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
936 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
751 | ecb_function_ int |
937 | ecb_function_ ecb_const int |
752 | ecb_ctz64 (uint64_t x) |
938 | ecb_ctz64 (uint64_t x) |
753 | { |
939 | { |
754 | int shift = x & 0xffffffffU ? 0 : 32; |
940 | int shift = x & 0xffffffffU ? 0 : 32; |
755 | return ecb_ctz32 (x >> shift) + shift; |
941 | return ecb_ctz32 (x >> shift) + shift; |
756 | } |
942 | } |
757 | |
943 | |
758 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
944 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
759 | ecb_function_ int |
945 | ecb_function_ ecb_const int |
760 | ecb_popcount32 (uint32_t x) |
946 | ecb_popcount32 (uint32_t x) |
761 | { |
947 | { |
762 | x -= (x >> 1) & 0x55555555; |
948 | x -= (x >> 1) & 0x55555555; |
763 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
949 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
764 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
950 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
765 | x *= 0x01010101; |
951 | x *= 0x01010101; |
766 | |
952 | |
767 | return x >> 24; |
953 | return x >> 24; |
768 | } |
954 | } |
769 | |
955 | |
770 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
956 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
771 | ecb_function_ int ecb_ld32 (uint32_t x) |
957 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
772 | { |
958 | { |
773 | int r = 0; |
959 | int r = 0; |
774 | |
960 | |
775 | if (x >> 16) { x >>= 16; r += 16; } |
961 | if (x >> 16) { x >>= 16; r += 16; } |
776 | if (x >> 8) { x >>= 8; r += 8; } |
962 | if (x >> 8) { x >>= 8; r += 8; } |
… | |
… | |
779 | if (x >> 1) { r += 1; } |
965 | if (x >> 1) { r += 1; } |
780 | |
966 | |
781 | return r; |
967 | return r; |
782 | } |
968 | } |
783 | |
969 | |
784 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
970 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
785 | ecb_function_ int ecb_ld64 (uint64_t x) |
971 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
786 | { |
972 | { |
787 | int r = 0; |
973 | int r = 0; |
788 | |
974 | |
789 | if (x >> 32) { x >>= 32; r += 32; } |
975 | if (x >> 32) { x >>= 32; r += 32; } |
790 | |
976 | |
791 | return r + ecb_ld32 (x); |
977 | return r + ecb_ld32 (x); |
792 | } |
978 | } |
793 | #endif |
979 | #endif |
794 | |
980 | |
|
|
981 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
982 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
983 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
984 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
985 | |
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
986 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
796 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
987 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
797 | { |
988 | { |
798 | return ( (x * 0x0802U & 0x22110U) |
989 | return ( (x * 0x0802U & 0x22110U) |
799 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
990 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
800 | } |
991 | } |
801 | |
992 | |
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
993 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
803 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
994 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
804 | { |
995 | { |
805 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
996 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
806 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
997 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
807 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
998 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
808 | x = ( x >> 8 ) | ( x << 8); |
999 | x = ( x >> 8 ) | ( x << 8); |
809 | |
1000 | |
810 | return x; |
1001 | return x; |
811 | } |
1002 | } |
812 | |
1003 | |
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1004 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
814 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1005 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
815 | { |
1006 | { |
816 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1007 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
817 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1008 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
818 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1009 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
819 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1010 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
822 | return x; |
1013 | return x; |
823 | } |
1014 | } |
824 | |
1015 | |
825 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1016 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
826 | /* so for this version we are lazy */ |
1017 | /* so for this version we are lazy */ |
827 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1018 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
828 | ecb_function_ int |
1019 | ecb_function_ ecb_const int |
829 | ecb_popcount64 (uint64_t x) |
1020 | ecb_popcount64 (uint64_t x) |
830 | { |
1021 | { |
831 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1022 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
832 | } |
1023 | } |
833 | |
1024 | |
834 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1025 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
835 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1026 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
836 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1027 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
837 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1028 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
838 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1029 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
839 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1030 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
840 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1031 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
841 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1032 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
842 | |
1033 | |
843 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1034 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
844 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1035 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
845 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1036 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
846 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1037 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
847 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1038 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
848 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1039 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
849 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1040 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
850 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1041 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
851 | |
1042 | |
852 | #if ECB_GCC_VERSION(4,3) |
1043 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
853 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1044 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
854 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1045 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
855 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1046 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
856 | #else |
1047 | #else |
857 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1048 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
858 | ecb_function_ uint16_t |
1049 | ecb_function_ ecb_const uint16_t |
859 | ecb_bswap16 (uint16_t x) |
1050 | ecb_bswap16 (uint16_t x) |
860 | { |
1051 | { |
861 | return ecb_rotl16 (x, 8); |
1052 | return ecb_rotl16 (x, 8); |
862 | } |
1053 | } |
863 | |
1054 | |
864 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1055 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
865 | ecb_function_ uint32_t |
1056 | ecb_function_ ecb_const uint32_t |
866 | ecb_bswap32 (uint32_t x) |
1057 | ecb_bswap32 (uint32_t x) |
867 | { |
1058 | { |
868 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1059 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
869 | } |
1060 | } |
870 | |
1061 | |
871 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1062 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
872 | ecb_function_ uint64_t |
1063 | ecb_function_ ecb_const uint64_t |
873 | ecb_bswap64 (uint64_t x) |
1064 | ecb_bswap64 (uint64_t x) |
874 | { |
1065 | { |
875 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1066 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
876 | } |
1067 | } |
877 | #endif |
1068 | #endif |
878 | |
1069 | |
879 | #if ECB_GCC_VERSION(4,5) |
1070 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
880 | #define ecb_unreachable() __builtin_unreachable () |
1071 | #define ecb_unreachable() __builtin_unreachable () |
881 | #else |
1072 | #else |
882 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1073 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
883 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1074 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
884 | ecb_inline void ecb_unreachable (void) { } |
1075 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
885 | #endif |
1076 | #endif |
886 | |
1077 | |
887 | /* try to tell the compiler that some condition is definitely true */ |
1078 | /* try to tell the compiler that some condition is definitely true */ |
888 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
1079 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
889 | |
1080 | |
890 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1081 | ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); |
891 | ecb_inline unsigned char |
1082 | ecb_inline ecb_const unsigned char |
892 | ecb_byteorder_helper (void) |
1083 | ecb_byteorder_helper (void) |
893 | { |
1084 | { |
894 | const uint32_t u = 0x11223344; |
1085 | /* the union code still generates code under pressure in gcc, */ |
895 | return *(unsigned char *)&u; |
1086 | /* but less than using pointers, and always seems to */ |
|
|
1087 | /* successfully return a constant. */ |
|
|
1088 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1089 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1090 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1091 | #if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
1092 | return 0x44; |
|
|
1093 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1094 | return 0x44; |
|
|
1095 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1096 | return 0x11; |
|
|
1097 | #else |
|
|
1098 | union |
|
|
1099 | { |
|
|
1100 | uint32_t i; |
|
|
1101 | uint8_t c; |
|
|
1102 | } u = { 0x11223344 }; |
|
|
1103 | return u.c; |
|
|
1104 | #endif |
896 | } |
1105 | } |
897 | |
1106 | |
898 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1107 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
899 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1108 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
900 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1109 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
901 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1110 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
902 | |
1111 | |
903 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1112 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
904 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1113 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
905 | #else |
1114 | #else |
906 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1115 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
907 | #endif |
1116 | #endif |
908 | |
1117 | |
909 | #if __cplusplus |
1118 | #if ECB_CPP |
910 | template<typename T> |
1119 | template<typename T> |
911 | static inline T ecb_div_rd (T val, T div) |
1120 | static inline T ecb_div_rd (T val, T div) |
912 | { |
1121 | { |
913 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1122 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
914 | } |
1123 | } |
… | |
… | |
931 | } |
1140 | } |
932 | #else |
1141 | #else |
933 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1142 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
934 | #endif |
1143 | #endif |
935 | |
1144 | |
|
|
1145 | /*******************************************************************************/ |
|
|
1146 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1147 | |
|
|
1148 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1149 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1150 | #if 0 \ |
|
|
1151 | || __i386 || __i386__ \ |
|
|
1152 | || ECB_GCC_AMD64 \ |
|
|
1153 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1154 | || defined __s390__ || defined __s390x__ \ |
|
|
1155 | || defined __mips__ \ |
|
|
1156 | || defined __alpha__ \ |
|
|
1157 | || defined __hppa__ \ |
|
|
1158 | || defined __ia64__ \ |
|
|
1159 | || defined __m68k__ \ |
|
|
1160 | || defined __m88k__ \ |
|
|
1161 | || defined __sh__ \ |
|
|
1162 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1163 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1164 | || defined __aarch64__ |
|
|
1165 | #define ECB_STDFP 1 |
|
|
1166 | #include <string.h> /* for memcpy */ |
|
|
1167 | #else |
|
|
1168 | #define ECB_STDFP 0 |
|
|
1169 | #endif |
|
|
1170 | |
|
|
1171 | #ifndef ECB_NO_LIBM |
|
|
1172 | |
|
|
1173 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1174 | |
|
|
1175 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1176 | #ifdef INFINITY |
|
|
1177 | #define ECB_INFINITY INFINITY |
|
|
1178 | #else |
|
|
1179 | #define ECB_INFINITY HUGE_VAL |
|
|
1180 | #endif |
|
|
1181 | |
|
|
1182 | #ifdef NAN |
|
|
1183 | #define ECB_NAN NAN |
|
|
1184 | #else |
|
|
1185 | #define ECB_NAN ECB_INFINITY |
|
|
1186 | #endif |
|
|
1187 | |
|
|
1188 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1189 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1190 | #else |
|
|
1191 | #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e)) |
|
|
1192 | #endif |
|
|
1193 | |
|
|
1194 | /* converts an ieee half/binary16 to a float */ |
|
|
1195 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1196 | ecb_function_ ecb_const float |
|
|
1197 | ecb_binary16_to_float (uint16_t x) |
|
|
1198 | { |
|
|
1199 | int e = (x >> 10) & 0x1f; |
|
|
1200 | int m = x & 0x3ff; |
|
|
1201 | float r; |
|
|
1202 | |
|
|
1203 | if (!e ) r = ecb_ldexpf (m , -24); |
|
|
1204 | else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25); |
|
|
1205 | else if (m ) r = ECB_NAN; |
|
|
1206 | else r = ECB_INFINITY; |
|
|
1207 | |
|
|
1208 | return x & 0x8000 ? -r : r; |
|
|
1209 | } |
|
|
1210 | |
|
|
1211 | /* convert a float to ieee single/binary32 */ |
|
|
1212 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1213 | ecb_function_ ecb_const uint32_t |
|
|
1214 | ecb_float_to_binary32 (float x) |
|
|
1215 | { |
|
|
1216 | uint32_t r; |
|
|
1217 | |
|
|
1218 | #if ECB_STDFP |
|
|
1219 | memcpy (&r, &x, 4); |
|
|
1220 | #else |
|
|
1221 | /* slow emulation, works for anything but -0 */ |
|
|
1222 | uint32_t m; |
|
|
1223 | int e; |
|
|
1224 | |
|
|
1225 | if (x == 0e0f ) return 0x00000000U; |
|
|
1226 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1227 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1228 | if (x != x ) return 0x7fbfffffU; |
|
|
1229 | |
|
|
1230 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1231 | |
|
|
1232 | r = m & 0x80000000U; |
|
|
1233 | |
|
|
1234 | if (r) |
|
|
1235 | m = -m; |
|
|
1236 | |
|
|
1237 | if (e <= -126) |
|
|
1238 | { |
|
|
1239 | m &= 0xffffffU; |
|
|
1240 | m >>= (-125 - e); |
|
|
1241 | e = -126; |
|
|
1242 | } |
|
|
1243 | |
|
|
1244 | r |= (e + 126) << 23; |
|
|
1245 | r |= m & 0x7fffffU; |
|
|
1246 | #endif |
|
|
1247 | |
|
|
1248 | return r; |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | /* converts an ieee single/binary32 to a float */ |
|
|
1252 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1253 | ecb_function_ ecb_const float |
|
|
1254 | ecb_binary32_to_float (uint32_t x) |
|
|
1255 | { |
|
|
1256 | float r; |
|
|
1257 | |
|
|
1258 | #if ECB_STDFP |
|
|
1259 | memcpy (&r, &x, 4); |
|
|
1260 | #else |
|
|
1261 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1262 | int neg = x >> 31; |
|
|
1263 | int e = (x >> 23) & 0xffU; |
|
|
1264 | |
|
|
1265 | x &= 0x7fffffU; |
|
|
1266 | |
|
|
1267 | if (e) |
|
|
1268 | x |= 0x800000U; |
|
|
1269 | else |
|
|
1270 | e = 1; |
|
|
1271 | |
|
|
1272 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1273 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1274 | |
|
|
1275 | r = neg ? -r : r; |
|
|
1276 | #endif |
|
|
1277 | |
|
|
1278 | return r; |
|
|
1279 | } |
|
|
1280 | |
|
|
1281 | /* convert a double to ieee double/binary64 */ |
|
|
1282 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1283 | ecb_function_ ecb_const uint64_t |
|
|
1284 | ecb_double_to_binary64 (double x) |
|
|
1285 | { |
|
|
1286 | uint64_t r; |
|
|
1287 | |
|
|
1288 | #if ECB_STDFP |
|
|
1289 | memcpy (&r, &x, 8); |
|
|
1290 | #else |
|
|
1291 | /* slow emulation, works for anything but -0 */ |
|
|
1292 | uint64_t m; |
|
|
1293 | int e; |
|
|
1294 | |
|
|
1295 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1296 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1297 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1298 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1299 | |
|
|
1300 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1301 | |
|
|
1302 | r = m & 0x8000000000000000;; |
|
|
1303 | |
|
|
1304 | if (r) |
|
|
1305 | m = -m; |
|
|
1306 | |
|
|
1307 | if (e <= -1022) |
|
|
1308 | { |
|
|
1309 | m &= 0x1fffffffffffffU; |
|
|
1310 | m >>= (-1021 - e); |
|
|
1311 | e = -1022; |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1315 | r |= m & 0xfffffffffffffU; |
|
|
1316 | #endif |
|
|
1317 | |
|
|
1318 | return r; |
|
|
1319 | } |
|
|
1320 | |
|
|
1321 | /* converts an ieee double/binary64 to a double */ |
|
|
1322 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1323 | ecb_function_ ecb_const double |
|
|
1324 | ecb_binary64_to_double (uint64_t x) |
|
|
1325 | { |
|
|
1326 | double r; |
|
|
1327 | |
|
|
1328 | #if ECB_STDFP |
|
|
1329 | memcpy (&r, &x, 8); |
|
|
1330 | #else |
|
|
1331 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1332 | int neg = x >> 63; |
|
|
1333 | int e = (x >> 52) & 0x7ffU; |
|
|
1334 | |
|
|
1335 | x &= 0xfffffffffffffU; |
|
|
1336 | |
|
|
1337 | if (e) |
|
|
1338 | x |= 0x10000000000000U; |
|
|
1339 | else |
|
|
1340 | e = 1; |
|
|
1341 | |
|
|
1342 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1343 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1344 | |
|
|
1345 | r = neg ? -r : r; |
|
|
1346 | #endif |
|
|
1347 | |
|
|
1348 | return r; |
|
|
1349 | } |
|
|
1350 | |
|
|
1351 | #endif |
|
|
1352 | |
936 | #endif |
1353 | #endif |
937 | |
1354 | |
938 | /* ECB.H END */ |
1355 | /* ECB.H END */ |
939 | |
1356 | |
940 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1357 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
1109 | #endif |
1526 | #endif |
1110 | |
1527 | |
1111 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1528 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1112 | |
1529 | |
1113 | void ecb_cold |
1530 | void ecb_cold |
1114 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1531 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1115 | { |
1532 | { |
1116 | syserr_cb = cb; |
1533 | syserr_cb = cb; |
1117 | } |
1534 | } |
1118 | |
1535 | |
1119 | static void noinline ecb_cold |
1536 | static void noinline ecb_cold |
… | |
… | |
1137 | abort (); |
1554 | abort (); |
1138 | } |
1555 | } |
1139 | } |
1556 | } |
1140 | |
1557 | |
1141 | static void * |
1558 | static void * |
1142 | ev_realloc_emul (void *ptr, long size) |
1559 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1143 | { |
1560 | { |
1144 | #if __GLIBC__ |
|
|
1145 | return realloc (ptr, size); |
|
|
1146 | #else |
|
|
1147 | /* some systems, notably openbsd and darwin, fail to properly |
1561 | /* some systems, notably openbsd and darwin, fail to properly |
1148 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1562 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1149 | * the single unix specification, so work around them here. |
1563 | * the single unix specification, so work around them here. |
|
|
1564 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1565 | * despite documenting it otherwise. |
1150 | */ |
1566 | */ |
1151 | |
1567 | |
1152 | if (size) |
1568 | if (size) |
1153 | return realloc (ptr, size); |
1569 | return realloc (ptr, size); |
1154 | |
1570 | |
1155 | free (ptr); |
1571 | free (ptr); |
1156 | return 0; |
1572 | return 0; |
1157 | #endif |
|
|
1158 | } |
1573 | } |
1159 | |
1574 | |
1160 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1575 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1161 | |
1576 | |
1162 | void ecb_cold |
1577 | void ecb_cold |
1163 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1578 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1164 | { |
1579 | { |
1165 | alloc = cb; |
1580 | alloc = cb; |
1166 | } |
1581 | } |
1167 | |
1582 | |
1168 | inline_speed void * |
1583 | inline_speed void * |
… | |
… | |
1817 | static void noinline ecb_cold |
2232 | static void noinline ecb_cold |
1818 | evpipe_init (EV_P) |
2233 | evpipe_init (EV_P) |
1819 | { |
2234 | { |
1820 | if (!ev_is_active (&pipe_w)) |
2235 | if (!ev_is_active (&pipe_w)) |
1821 | { |
2236 | { |
|
|
2237 | int fds [2]; |
|
|
2238 | |
1822 | # if EV_USE_EVENTFD |
2239 | # if EV_USE_EVENTFD |
|
|
2240 | fds [0] = -1; |
1823 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2241 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1824 | if (evfd < 0 && errno == EINVAL) |
2242 | if (fds [1] < 0 && errno == EINVAL) |
1825 | evfd = eventfd (0, 0); |
2243 | fds [1] = eventfd (0, 0); |
1826 | |
2244 | |
1827 | if (evfd >= 0) |
2245 | if (fds [1] < 0) |
1828 | { |
|
|
1829 | evpipe [0] = -1; |
|
|
1830 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1831 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1832 | } |
|
|
1833 | else |
|
|
1834 | # endif |
2246 | # endif |
1835 | { |
2247 | { |
1836 | while (pipe (evpipe)) |
2248 | while (pipe (fds)) |
1837 | ev_syserr ("(libev) error creating signal/async pipe"); |
2249 | ev_syserr ("(libev) error creating signal/async pipe"); |
1838 | |
2250 | |
1839 | fd_intern (evpipe [0]); |
2251 | fd_intern (fds [0]); |
1840 | fd_intern (evpipe [1]); |
|
|
1841 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1842 | } |
2252 | } |
1843 | |
2253 | |
|
|
2254 | evpipe [0] = fds [0]; |
|
|
2255 | |
|
|
2256 | if (evpipe [1] < 0) |
|
|
2257 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2258 | else |
|
|
2259 | { |
|
|
2260 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2261 | /* so that evpipe_write can always rely on its value. */ |
|
|
2262 | /* this branch does not do anything sensible on windows, */ |
|
|
2263 | /* so must not be executed on windows */ |
|
|
2264 | |
|
|
2265 | dup2 (fds [1], evpipe [1]); |
|
|
2266 | close (fds [1]); |
|
|
2267 | } |
|
|
2268 | |
|
|
2269 | fd_intern (evpipe [1]); |
|
|
2270 | |
|
|
2271 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1844 | ev_io_start (EV_A_ &pipe_w); |
2272 | ev_io_start (EV_A_ &pipe_w); |
1845 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2273 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1846 | } |
2274 | } |
1847 | } |
2275 | } |
1848 | |
2276 | |
… | |
… | |
1853 | |
2281 | |
1854 | if (expect_true (*flag)) |
2282 | if (expect_true (*flag)) |
1855 | return; |
2283 | return; |
1856 | |
2284 | |
1857 | *flag = 1; |
2285 | *flag = 1; |
1858 | |
|
|
1859 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2286 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1860 | |
2287 | |
1861 | pipe_write_skipped = 1; |
2288 | pipe_write_skipped = 1; |
1862 | |
2289 | |
1863 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2290 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1864 | |
2291 | |
1865 | if (pipe_write_wanted) |
2292 | if (pipe_write_wanted) |
1866 | { |
2293 | { |
1867 | int old_errno; |
2294 | int old_errno; |
1868 | |
2295 | |
1869 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2296 | pipe_write_skipped = 0; |
|
|
2297 | ECB_MEMORY_FENCE_RELEASE; |
1870 | |
2298 | |
1871 | old_errno = errno; /* save errno because write will clobber it */ |
2299 | old_errno = errno; /* save errno because write will clobber it */ |
1872 | |
2300 | |
1873 | #if EV_USE_EVENTFD |
2301 | #if EV_USE_EVENTFD |
1874 | if (evfd >= 0) |
2302 | if (evpipe [0] < 0) |
1875 | { |
2303 | { |
1876 | uint64_t counter = 1; |
2304 | uint64_t counter = 1; |
1877 | write (evfd, &counter, sizeof (uint64_t)); |
2305 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1878 | } |
2306 | } |
1879 | else |
2307 | else |
1880 | #endif |
2308 | #endif |
1881 | { |
2309 | { |
1882 | #ifdef _WIN32 |
2310 | #ifdef _WIN32 |
… | |
… | |
1902 | int i; |
2330 | int i; |
1903 | |
2331 | |
1904 | if (revents & EV_READ) |
2332 | if (revents & EV_READ) |
1905 | { |
2333 | { |
1906 | #if EV_USE_EVENTFD |
2334 | #if EV_USE_EVENTFD |
1907 | if (evfd >= 0) |
2335 | if (evpipe [0] < 0) |
1908 | { |
2336 | { |
1909 | uint64_t counter; |
2337 | uint64_t counter; |
1910 | read (evfd, &counter, sizeof (uint64_t)); |
2338 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1911 | } |
2339 | } |
1912 | else |
2340 | else |
1913 | #endif |
2341 | #endif |
1914 | { |
2342 | { |
1915 | char dummy[4]; |
2343 | char dummy[4]; |
1916 | #ifdef _WIN32 |
2344 | #ifdef _WIN32 |
1917 | WSABUF buf; |
2345 | WSABUF buf; |
1918 | DWORD recvd; |
2346 | DWORD recvd; |
|
|
2347 | DWORD flags = 0; |
1919 | buf.buf = dummy; |
2348 | buf.buf = dummy; |
1920 | buf.len = sizeof (dummy); |
2349 | buf.len = sizeof (dummy); |
1921 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); |
2350 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
1922 | #else |
2351 | #else |
1923 | read (evpipe [0], &dummy, sizeof (dummy)); |
2352 | read (evpipe [0], &dummy, sizeof (dummy)); |
1924 | #endif |
2353 | #endif |
1925 | } |
2354 | } |
1926 | } |
2355 | } |
… | |
… | |
1932 | #if EV_SIGNAL_ENABLE |
2361 | #if EV_SIGNAL_ENABLE |
1933 | if (sig_pending) |
2362 | if (sig_pending) |
1934 | { |
2363 | { |
1935 | sig_pending = 0; |
2364 | sig_pending = 0; |
1936 | |
2365 | |
1937 | ECB_MEMORY_FENCE_RELEASE; |
2366 | ECB_MEMORY_FENCE; |
1938 | |
2367 | |
1939 | for (i = EV_NSIG - 1; i--; ) |
2368 | for (i = EV_NSIG - 1; i--; ) |
1940 | if (expect_false (signals [i].pending)) |
2369 | if (expect_false (signals [i].pending)) |
1941 | ev_feed_signal_event (EV_A_ i + 1); |
2370 | ev_feed_signal_event (EV_A_ i + 1); |
1942 | } |
2371 | } |
… | |
… | |
1945 | #if EV_ASYNC_ENABLE |
2374 | #if EV_ASYNC_ENABLE |
1946 | if (async_pending) |
2375 | if (async_pending) |
1947 | { |
2376 | { |
1948 | async_pending = 0; |
2377 | async_pending = 0; |
1949 | |
2378 | |
1950 | ECB_MEMORY_FENCE_RELEASE; |
2379 | ECB_MEMORY_FENCE; |
1951 | |
2380 | |
1952 | for (i = asynccnt; i--; ) |
2381 | for (i = asynccnt; i--; ) |
1953 | if (asyncs [i]->sent) |
2382 | if (asyncs [i]->sent) |
1954 | { |
2383 | { |
1955 | asyncs [i]->sent = 0; |
2384 | asyncs [i]->sent = 0; |
|
|
2385 | ECB_MEMORY_FENCE_RELEASE; |
1956 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2386 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1957 | } |
2387 | } |
1958 | } |
2388 | } |
1959 | #endif |
2389 | #endif |
1960 | } |
2390 | } |
… | |
… | |
1963 | |
2393 | |
1964 | void |
2394 | void |
1965 | ev_feed_signal (int signum) EV_THROW |
2395 | ev_feed_signal (int signum) EV_THROW |
1966 | { |
2396 | { |
1967 | #if EV_MULTIPLICITY |
2397 | #if EV_MULTIPLICITY |
|
|
2398 | EV_P; |
|
|
2399 | ECB_MEMORY_FENCE_ACQUIRE; |
1968 | EV_P = signals [signum - 1].loop; |
2400 | EV_A = signals [signum - 1].loop; |
1969 | |
2401 | |
1970 | if (!EV_A) |
2402 | if (!EV_A) |
1971 | return; |
2403 | return; |
1972 | #endif |
2404 | #endif |
1973 | |
2405 | |
1974 | if (!ev_active (&pipe_w)) |
|
|
1975 | return; |
|
|
1976 | |
|
|
1977 | signals [signum - 1].pending = 1; |
2406 | signals [signum - 1].pending = 1; |
1978 | evpipe_write (EV_A_ &sig_pending); |
2407 | evpipe_write (EV_A_ &sig_pending); |
1979 | } |
2408 | } |
1980 | |
2409 | |
1981 | static void |
2410 | static void |
… | |
… | |
1991 | void noinline |
2420 | void noinline |
1992 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2421 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1993 | { |
2422 | { |
1994 | WL w; |
2423 | WL w; |
1995 | |
2424 | |
1996 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2425 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1997 | return; |
2426 | return; |
1998 | |
2427 | |
1999 | --signum; |
2428 | --signum; |
2000 | |
2429 | |
2001 | #if EV_MULTIPLICITY |
2430 | #if EV_MULTIPLICITY |
… | |
… | |
2005 | if (expect_false (signals [signum].loop != EV_A)) |
2434 | if (expect_false (signals [signum].loop != EV_A)) |
2006 | return; |
2435 | return; |
2007 | #endif |
2436 | #endif |
2008 | |
2437 | |
2009 | signals [signum].pending = 0; |
2438 | signals [signum].pending = 0; |
|
|
2439 | ECB_MEMORY_FENCE_RELEASE; |
2010 | |
2440 | |
2011 | for (w = signals [signum].head; w; w = w->next) |
2441 | for (w = signals [signum].head; w; w = w->next) |
2012 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2442 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2013 | } |
2443 | } |
2014 | |
2444 | |
… | |
… | |
2228 | { |
2658 | { |
2229 | return userdata; |
2659 | return userdata; |
2230 | } |
2660 | } |
2231 | |
2661 | |
2232 | void |
2662 | void |
2233 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2663 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2234 | { |
2664 | { |
2235 | invoke_cb = invoke_pending_cb; |
2665 | invoke_cb = invoke_pending_cb; |
2236 | } |
2666 | } |
2237 | |
2667 | |
2238 | void |
2668 | void |
… | |
… | |
2298 | #if EV_ASYNC_ENABLE |
2728 | #if EV_ASYNC_ENABLE |
2299 | async_pending = 0; |
2729 | async_pending = 0; |
2300 | #endif |
2730 | #endif |
2301 | pipe_write_skipped = 0; |
2731 | pipe_write_skipped = 0; |
2302 | pipe_write_wanted = 0; |
2732 | pipe_write_wanted = 0; |
|
|
2733 | evpipe [0] = -1; |
|
|
2734 | evpipe [1] = -1; |
2303 | #if EV_USE_INOTIFY |
2735 | #if EV_USE_INOTIFY |
2304 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2736 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2305 | #endif |
2737 | #endif |
2306 | #if EV_USE_SIGNALFD |
2738 | #if EV_USE_SIGNALFD |
2307 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2739 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2358 | EV_INVOKE_PENDING; |
2790 | EV_INVOKE_PENDING; |
2359 | } |
2791 | } |
2360 | #endif |
2792 | #endif |
2361 | |
2793 | |
2362 | #if EV_CHILD_ENABLE |
2794 | #if EV_CHILD_ENABLE |
2363 | if (ev_is_active (&childev)) |
2795 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2364 | { |
2796 | { |
2365 | ev_ref (EV_A); /* child watcher */ |
2797 | ev_ref (EV_A); /* child watcher */ |
2366 | ev_signal_stop (EV_A_ &childev); |
2798 | ev_signal_stop (EV_A_ &childev); |
2367 | } |
2799 | } |
2368 | #endif |
2800 | #endif |
… | |
… | |
2370 | if (ev_is_active (&pipe_w)) |
2802 | if (ev_is_active (&pipe_w)) |
2371 | { |
2803 | { |
2372 | /*ev_ref (EV_A);*/ |
2804 | /*ev_ref (EV_A);*/ |
2373 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2805 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2374 | |
2806 | |
2375 | #if EV_USE_EVENTFD |
|
|
2376 | if (evfd >= 0) |
|
|
2377 | close (evfd); |
|
|
2378 | #endif |
|
|
2379 | |
|
|
2380 | if (evpipe [0] >= 0) |
|
|
2381 | { |
|
|
2382 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2807 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2383 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2808 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2384 | } |
|
|
2385 | } |
2809 | } |
2386 | |
2810 | |
2387 | #if EV_USE_SIGNALFD |
2811 | #if EV_USE_SIGNALFD |
2388 | if (ev_is_active (&sigfd_w)) |
2812 | if (ev_is_active (&sigfd_w)) |
2389 | close (sigfd); |
2813 | close (sigfd); |
… | |
… | |
2475 | #endif |
2899 | #endif |
2476 | #if EV_USE_INOTIFY |
2900 | #if EV_USE_INOTIFY |
2477 | infy_fork (EV_A); |
2901 | infy_fork (EV_A); |
2478 | #endif |
2902 | #endif |
2479 | |
2903 | |
|
|
2904 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2480 | if (ev_is_active (&pipe_w)) |
2905 | if (ev_is_active (&pipe_w)) |
2481 | { |
2906 | { |
2482 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2907 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2483 | |
2908 | |
2484 | ev_ref (EV_A); |
2909 | ev_ref (EV_A); |
2485 | ev_io_stop (EV_A_ &pipe_w); |
2910 | ev_io_stop (EV_A_ &pipe_w); |
2486 | |
2911 | |
2487 | #if EV_USE_EVENTFD |
|
|
2488 | if (evfd >= 0) |
|
|
2489 | close (evfd); |
|
|
2490 | #endif |
|
|
2491 | |
|
|
2492 | if (evpipe [0] >= 0) |
2912 | if (evpipe [0] >= 0) |
2493 | { |
|
|
2494 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2913 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2495 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2496 | } |
|
|
2497 | |
2914 | |
2498 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2499 | evpipe_init (EV_A); |
2915 | evpipe_init (EV_A); |
2500 | /* now iterate over everything, in case we missed something */ |
2916 | /* iterate over everything, in case we missed something before */ |
2501 | pipecb (EV_A_ &pipe_w, EV_READ); |
2917 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2502 | #endif |
|
|
2503 | } |
2918 | } |
|
|
2919 | #endif |
2504 | |
2920 | |
2505 | postfork = 0; |
2921 | postfork = 0; |
2506 | } |
2922 | } |
2507 | |
2923 | |
2508 | #if EV_MULTIPLICITY |
2924 | #if EV_MULTIPLICITY |
… | |
… | |
2681 | } |
3097 | } |
2682 | |
3098 | |
2683 | void |
3099 | void |
2684 | ev_loop_fork (EV_P) EV_THROW |
3100 | ev_loop_fork (EV_P) EV_THROW |
2685 | { |
3101 | { |
2686 | postfork = 1; /* must be in line with ev_default_fork */ |
3102 | postfork = 1; |
2687 | } |
3103 | } |
2688 | |
3104 | |
2689 | /*****************************************************************************/ |
3105 | /*****************************************************************************/ |
2690 | |
3106 | |
2691 | void |
3107 | void |
… | |
… | |
2707 | } |
3123 | } |
2708 | |
3124 | |
2709 | void noinline |
3125 | void noinline |
2710 | ev_invoke_pending (EV_P) |
3126 | ev_invoke_pending (EV_P) |
2711 | { |
3127 | { |
2712 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
3128 | pendingpri = NUMPRI; |
|
|
3129 | |
|
|
3130 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3131 | { |
|
|
3132 | --pendingpri; |
|
|
3133 | |
2713 | while (pendingcnt [pendingpri]) |
3134 | while (pendingcnt [pendingpri]) |
2714 | { |
3135 | { |
2715 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
3136 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2716 | |
3137 | |
2717 | p->w->pending = 0; |
3138 | p->w->pending = 0; |
2718 | EV_CB_INVOKE (p->w, p->events); |
3139 | EV_CB_INVOKE (p->w, p->events); |
2719 | EV_FREQUENT_CHECK; |
3140 | EV_FREQUENT_CHECK; |
2720 | } |
3141 | } |
|
|
3142 | } |
2721 | } |
3143 | } |
2722 | |
3144 | |
2723 | #if EV_IDLE_ENABLE |
3145 | #if EV_IDLE_ENABLE |
2724 | /* make idle watchers pending. this handles the "call-idle */ |
3146 | /* make idle watchers pending. this handles the "call-idle */ |
2725 | /* only when higher priorities are idle" logic */ |
3147 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2815 | { |
3237 | { |
2816 | EV_FREQUENT_CHECK; |
3238 | EV_FREQUENT_CHECK; |
2817 | |
3239 | |
2818 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3240 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2819 | { |
3241 | { |
2820 | int feed_count = 0; |
|
|
2821 | |
|
|
2822 | do |
3242 | do |
2823 | { |
3243 | { |
2824 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3244 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2825 | |
3245 | |
2826 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3246 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
3085 | backend_poll (EV_A_ waittime); |
3505 | backend_poll (EV_A_ waittime); |
3086 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3506 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3087 | |
3507 | |
3088 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3508 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3089 | |
3509 | |
|
|
3510 | ECB_MEMORY_FENCE_ACQUIRE; |
3090 | if (pipe_write_skipped) |
3511 | if (pipe_write_skipped) |
3091 | { |
3512 | { |
3092 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3513 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3093 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3514 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3094 | } |
3515 | } |
… | |
… | |
3472 | #if EV_MULTIPLICITY |
3893 | #if EV_MULTIPLICITY |
3473 | assert (("libev: a signal must not be attached to two different loops", |
3894 | assert (("libev: a signal must not be attached to two different loops", |
3474 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3895 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3475 | |
3896 | |
3476 | signals [w->signum - 1].loop = EV_A; |
3897 | signals [w->signum - 1].loop = EV_A; |
|
|
3898 | ECB_MEMORY_FENCE_RELEASE; |
3477 | #endif |
3899 | #endif |
3478 | |
3900 | |
3479 | EV_FREQUENT_CHECK; |
3901 | EV_FREQUENT_CHECK; |
3480 | |
3902 | |
3481 | #if EV_USE_SIGNALFD |
3903 | #if EV_USE_SIGNALFD |
… | |
… | |
3636 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4058 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3637 | |
4059 | |
3638 | static void noinline |
4060 | static void noinline |
3639 | infy_add (EV_P_ ev_stat *w) |
4061 | infy_add (EV_P_ ev_stat *w) |
3640 | { |
4062 | { |
3641 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4063 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4064 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4065 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4066 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3642 | |
4067 | |
3643 | if (w->wd >= 0) |
4068 | if (w->wd >= 0) |
3644 | { |
4069 | { |
3645 | struct statfs sfs; |
4070 | struct statfs sfs; |
3646 | |
4071 | |
… | |
… | |
3650 | |
4075 | |
3651 | if (!fs_2625) |
4076 | if (!fs_2625) |
3652 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4077 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3653 | else if (!statfs (w->path, &sfs) |
4078 | else if (!statfs (w->path, &sfs) |
3654 | && (sfs.f_type == 0x1373 /* devfs */ |
4079 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4080 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4081 | || sfs.f_type == 0x4d44 /* msdos */ |
3655 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4082 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4083 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4084 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4085 | || sfs.f_type == 0x5346544e /* ntfs */ |
3656 | || sfs.f_type == 0x3153464a /* jfs */ |
4086 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4087 | || sfs.f_type == 0x9123683e /* btrfs */ |
3657 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4088 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3658 | || sfs.f_type == 0x01021994 /* tempfs */ |
4089 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3659 | || sfs.f_type == 0x58465342 /* xfs */)) |
4090 | || sfs.f_type == 0x58465342 /* xfs */)) |
3660 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4091 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3661 | else |
4092 | else |
3662 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4093 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3663 | } |
4094 | } |