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 |
… | |
… | |
256 | # else |
256 | # else |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
258 | # endif |
258 | # endif |
259 | #endif |
259 | #endif |
260 | |
260 | |
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261 | #if !(_POSIX_TIMERS > 0) |
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262 | # ifndef EV_USE_MONOTONIC |
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263 | # define EV_USE_MONOTONIC 0 |
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264 | # endif |
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265 | # ifndef EV_USE_REALTIME |
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266 | # define EV_USE_REALTIME 0 |
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267 | # endif |
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268 | #endif |
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269 | |
261 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
262 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
263 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
272 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
264 | # else |
273 | # else |
265 | # define EV_USE_MONOTONIC 0 |
274 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
482 | /* 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 */ |
483 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
484 | /* |
493 | /* |
485 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
486 | * |
495 | * |
487 | * Copyright (©) 2009-2013 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
488 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
489 | * All rights reserved. |
498 | * All rights reserved. |
490 | * |
499 | * |
491 | * 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- |
492 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
506 | * 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; |
507 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
508 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
509 | * 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 |
510 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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520 | * |
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521 | * Alternatively, the contents of this file may be used under the terms of |
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522 | * the GNU General Public License ("GPL") version 2 or any later version, |
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523 | * in which case the provisions of the GPL are applicable instead of |
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524 | * the above. If you wish to allow the use of your version of this file |
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525 | * only under the terms of the GPL and not to allow others to use your |
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526 | * version of this file under the BSD license, indicate your decision |
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527 | * by deleting the provisions above and replace them with the notice |
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528 | * and other provisions required by the GPL. If you do not delete the |
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529 | * provisions above, a recipient may use your version of this file under |
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530 | * either the BSD or the GPL. |
511 | */ |
531 | */ |
512 | |
532 | |
513 | #ifndef ECB_H |
533 | #ifndef ECB_H |
514 | #define ECB_H |
534 | #define ECB_H |
515 | |
535 | |
516 | /* 16 bits major, 16 bits minor */ |
536 | /* 16 bits major, 16 bits minor */ |
517 | #define ECB_VERSION 0x00010003 |
537 | #define ECB_VERSION 0x00010005 |
518 | |
538 | |
519 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
520 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
521 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
522 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
539 | typedef uint32_t uintptr_t; |
559 | typedef uint32_t uintptr_t; |
540 | typedef int32_t intptr_t; |
560 | typedef int32_t intptr_t; |
541 | #endif |
561 | #endif |
542 | #else |
562 | #else |
543 | #include <inttypes.h> |
563 | #include <inttypes.h> |
544 | #if UINTMAX_MAX > 0xffffffffU |
564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
545 | #define ECB_PTRSIZE 8 |
565 | #define ECB_PTRSIZE 8 |
546 | #else |
566 | #else |
547 | #define ECB_PTRSIZE 4 |
567 | #define ECB_PTRSIZE 4 |
548 | #endif |
568 | #endif |
549 | #endif |
569 | #endif |
550 | |
570 | |
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571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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573 | |
551 | /* work around x32 idiocy by defining proper macros */ |
574 | /* work around x32 idiocy by defining proper macros */ |
552 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
553 | #if _ILP32 |
576 | #if _ILP32 |
554 | #define ECB_AMD64_X32 1 |
577 | #define ECB_AMD64_X32 1 |
555 | #else |
578 | #else |
556 | #define ECB_AMD64 1 |
579 | #define ECB_AMD64 1 |
557 | #endif |
580 | #endif |
… | |
… | |
562 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
563 | * or so. |
586 | * or so. |
564 | * 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 |
565 | * 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. |
566 | */ |
589 | */ |
567 | #ifndef ECB_GCC_VERSION |
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568 | #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__ |
569 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
570 | #else |
592 | #else |
571 | #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))) |
572 | #endif |
594 | #endif |
573 | #endif |
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574 | |
595 | |
575 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
597 | |
577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
598 | #if __clang__ && defined __has_builtin |
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599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
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600 | #else |
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601 | #define ECB_CLANG_BUILTIN(x) 0 |
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602 | #endif |
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603 | |
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604 | #if __clang__ && defined __has_extension |
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605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
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606 | #else |
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607 | #define ECB_CLANG_EXTENSION(x) 0 |
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608 | #endif |
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609 | |
578 | #define ECB_CPP (__cplusplus+0) |
610 | #define ECB_CPP (__cplusplus+0) |
579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
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612 | |
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613 | #if ECB_CPP |
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614 | #define ECB_C 0 |
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615 | #define ECB_STDC_VERSION 0 |
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616 | #else |
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617 | #define ECB_C 1 |
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618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
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619 | #endif |
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620 | |
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621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
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622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
580 | |
623 | |
581 | #if ECB_CPP |
624 | #if ECB_CPP |
582 | #define ECB_EXTERN_C extern "C" |
625 | #define ECB_EXTERN_C extern "C" |
583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
584 | #define ECB_EXTERN_C_END } |
627 | #define ECB_EXTERN_C_END } |
… | |
… | |
597 | #define ECB_NO_SMP 1 |
640 | #define ECB_NO_SMP 1 |
598 | #endif |
641 | #endif |
599 | |
642 | |
600 | #if ECB_NO_SMP |
643 | #if ECB_NO_SMP |
601 | #define ECB_MEMORY_FENCE do { } while (0) |
644 | #define ECB_MEMORY_FENCE do { } while (0) |
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645 | #endif |
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646 | |
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647 | /* 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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648 | #if __xlC__ && ECB_CPP |
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649 | #include <builtins.h> |
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650 | #endif |
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651 | |
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652 | #if 1400 <= _MSC_VER |
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653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
602 | #endif |
654 | #endif |
603 | |
655 | |
604 | #ifndef ECB_MEMORY_FENCE |
656 | #ifndef ECB_MEMORY_FENCE |
605 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
657 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
606 | #if __i386 || __i386__ |
658 | #if __i386 || __i386__ |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
610 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
662 | #elif ECB_GCC_AMD64 |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
612 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
613 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
614 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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668 | #elif defined __ARM_ARCH_2__ \ |
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669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
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670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
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671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
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672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
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673 | || defined __ARM_ARCH_5TEJ__ |
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674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
616 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
617 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
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677 | || defined __ARM_ARCH_6T2__ |
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
619 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
620 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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682 | #elif __aarch64__ |
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683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
622 | #elif (__sparc || __sparc__) && !__sparcv8 |
684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
626 | #elif defined __s390__ || defined __s390x__ |
688 | #elif defined __s390__ || defined __s390x__ |
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
648 | |
710 | |
649 | #ifndef ECB_MEMORY_FENCE |
711 | #ifndef ECB_MEMORY_FENCE |
650 | #if ECB_GCC_VERSION(4,7) |
712 | #if ECB_GCC_VERSION(4,7) |
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
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715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
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716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
653 | |
717 | |
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
655 | * without risking compile time errors with other compilers. We *could* |
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656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
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657 | * around this shit time and again. |
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658 | * #elif defined __clang && __has_feature (cxx_atomic) |
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659 | * // see comment below (stdatomic.h) about the C11 memory model. |
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
661 | */ |
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
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|
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
662 | |
723 | |
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
665 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
666 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
727 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
… | |
… | |
695 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
756 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
696 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
757 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
697 | /* for most usages, or gcc and clang have a bug */ |
758 | /* for most usages, or gcc and clang have a bug */ |
698 | /* I *currently* lean towards the latter, and inefficiently implement */ |
759 | /* I *currently* lean towards the latter, and inefficiently implement */ |
699 | /* all three of ecb's fences as a seq_cst fence */ |
760 | /* all three of ecb's fences as a seq_cst fence */ |
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761 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
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|
762 | /* for all __atomic_thread_fence's except seq_cst */ |
700 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
763 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
701 | #endif |
764 | #endif |
702 | #endif |
765 | #endif |
703 | |
766 | |
704 | #ifndef ECB_MEMORY_FENCE |
767 | #ifndef ECB_MEMORY_FENCE |
… | |
… | |
727 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
728 | #endif |
791 | #endif |
729 | |
792 | |
730 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
731 | |
794 | |
732 | #if __cplusplus |
795 | #if ECB_CPP |
733 | #define ecb_inline static inline |
796 | #define ecb_inline static inline |
734 | #elif ECB_GCC_VERSION(2,5) |
797 | #elif ECB_GCC_VERSION(2,5) |
735 | #define ecb_inline static __inline__ |
798 | #define ecb_inline static __inline__ |
736 | #elif ECB_C99 |
799 | #elif ECB_C99 |
737 | #define ecb_inline static inline |
800 | #define ecb_inline static inline |
… | |
… | |
751 | |
814 | |
752 | #define ECB_CONCAT_(a, b) a ## b |
815 | #define ECB_CONCAT_(a, b) a ## b |
753 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
754 | #define ECB_STRINGIFY_(a) # a |
817 | #define ECB_STRINGIFY_(a) # a |
755 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
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819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
756 | |
820 | |
757 | #define ecb_function_ ecb_inline |
821 | #define ecb_function_ ecb_inline |
758 | |
822 | |
759 | #if ECB_GCC_VERSION(3,1) |
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
760 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
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825 | #else |
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826 | #define ecb_attribute(attrlist) |
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827 | #endif |
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828 | |
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|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
761 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
831 | #else |
|
|
832 | /* possible C11 impl for integral types |
|
|
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
835 | |
|
|
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
762 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
841 | #else |
|
|
842 | #define ecb_expect(expr,value) (expr) |
|
|
843 | #endif |
|
|
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
763 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
764 | #else |
847 | #else |
765 | #define ecb_attribute(attrlist) |
|
|
766 | #define ecb_is_constant(expr) 0 |
|
|
767 | #define ecb_expect(expr,value) (expr) |
|
|
768 | #define ecb_prefetch(addr,rw,locality) |
848 | #define ecb_prefetch(addr,rw,locality) |
769 | #endif |
849 | #endif |
770 | |
850 | |
771 | /* no emulation for ecb_decltype */ |
851 | /* no emulation for ecb_decltype */ |
772 | #if ECB_GCC_VERSION(4,5) |
852 | #if ECB_CPP11 |
|
|
853 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
854 | template<class T> struct ecb_decltype_t { typedef T type; }; |
773 | #define ecb_decltype(x) __decltype(x) |
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
774 | #elif ECB_GCC_VERSION(3,0) |
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
775 | #define ecb_decltype(x) __typeof(x) |
857 | #define ecb_decltype(x) __typeof__ (x) |
776 | #endif |
858 | #endif |
777 | |
859 | |
|
|
860 | #if _MSC_VER >= 1300 |
|
|
861 | #define ecb_deprecated __declspec (deprecated) |
|
|
862 | #else |
|
|
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | #if _MSC_VER >= 1500 |
|
|
867 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
868 | #elif ECB_GCC_VERSION(4,5) |
|
|
869 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
870 | #else |
|
|
871 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #if _MSC_VER >= 1400 |
|
|
875 | #define ecb_noinline __declspec (noinline) |
|
|
876 | #else |
778 | #define ecb_noinline ecb_attribute ((__noinline__)) |
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
878 | #endif |
|
|
879 | |
779 | #define ecb_unused ecb_attribute ((__unused__)) |
880 | #define ecb_unused ecb_attribute ((__unused__)) |
780 | #define ecb_const ecb_attribute ((__const__)) |
881 | #define ecb_const ecb_attribute ((__const__)) |
781 | #define ecb_pure ecb_attribute ((__pure__)) |
882 | #define ecb_pure ecb_attribute ((__pure__)) |
782 | |
883 | |
783 | #if ECB_C11 |
884 | #if ECB_C11 || __IBMC_NORETURN |
|
|
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
784 | #define ecb_noreturn _Noreturn |
886 | #define ecb_noreturn _Noreturn |
|
|
887 | #elif ECB_CPP11 |
|
|
888 | #define ecb_noreturn [[noreturn]] |
|
|
889 | #elif _MSC_VER >= 1200 |
|
|
890 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
891 | #define ecb_noreturn __declspec (noreturn) |
785 | #else |
892 | #else |
786 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
787 | #endif |
894 | #endif |
788 | |
895 | |
789 | #if ECB_GCC_VERSION(4,3) |
896 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
804 | /* for compatibility to the rest of the world */ |
911 | /* for compatibility to the rest of the world */ |
805 | #define ecb_likely(expr) ecb_expect_true (expr) |
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
806 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
807 | |
914 | |
808 | /* count trailing zero bits and count # of one bits */ |
915 | /* count trailing zero bits and count # of one bits */ |
809 | #if ECB_GCC_VERSION(3,4) |
916 | #if ECB_GCC_VERSION(3,4) \ |
|
|
917 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
918 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
919 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
810 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
920 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
811 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
812 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
813 | #define ecb_ctz32(x) __builtin_ctz (x) |
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
814 | #define ecb_ctz64(x) __builtin_ctzll (x) |
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
815 | #define ecb_popcount32(x) __builtin_popcount (x) |
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
816 | /* no popcountll */ |
926 | /* no popcountll */ |
817 | #else |
927 | #else |
818 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
819 | ecb_function_ int |
929 | ecb_function_ ecb_const int |
820 | ecb_ctz32 (uint32_t x) |
930 | ecb_ctz32 (uint32_t x) |
821 | { |
931 | { |
|
|
932 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
933 | unsigned long r; |
|
|
934 | _BitScanForward (&r, x); |
|
|
935 | return (int)r; |
|
|
936 | #else |
822 | int r = 0; |
937 | int r = 0; |
823 | |
938 | |
824 | x &= ~x + 1; /* this isolates the lowest bit */ |
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
825 | |
940 | |
826 | #if ECB_branchless_on_i386 |
941 | #if ECB_branchless_on_i386 |
… | |
… | |
836 | if (x & 0xff00ff00) r += 8; |
951 | if (x & 0xff00ff00) r += 8; |
837 | if (x & 0xffff0000) r += 16; |
952 | if (x & 0xffff0000) r += 16; |
838 | #endif |
953 | #endif |
839 | |
954 | |
840 | return r; |
955 | return r; |
|
|
956 | #endif |
841 | } |
957 | } |
842 | |
958 | |
843 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
844 | ecb_function_ int |
960 | ecb_function_ ecb_const int |
845 | ecb_ctz64 (uint64_t x) |
961 | ecb_ctz64 (uint64_t x) |
846 | { |
962 | { |
|
|
963 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
964 | unsigned long r; |
|
|
965 | _BitScanForward64 (&r, x); |
|
|
966 | return (int)r; |
|
|
967 | #else |
847 | int shift = x & 0xffffffffU ? 0 : 32; |
968 | int shift = x & 0xffffffff ? 0 : 32; |
848 | return ecb_ctz32 (x >> shift) + shift; |
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
849 | } |
971 | } |
850 | |
972 | |
851 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
852 | ecb_function_ int |
974 | ecb_function_ ecb_const int |
853 | ecb_popcount32 (uint32_t x) |
975 | ecb_popcount32 (uint32_t x) |
854 | { |
976 | { |
855 | x -= (x >> 1) & 0x55555555; |
977 | x -= (x >> 1) & 0x55555555; |
856 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
857 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
858 | x *= 0x01010101; |
980 | x *= 0x01010101; |
859 | |
981 | |
860 | return x >> 24; |
982 | return x >> 24; |
861 | } |
983 | } |
862 | |
984 | |
863 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
864 | ecb_function_ int ecb_ld32 (uint32_t x) |
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
865 | { |
987 | { |
|
|
988 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
989 | unsigned long r; |
|
|
990 | _BitScanReverse (&r, x); |
|
|
991 | return (int)r; |
|
|
992 | #else |
866 | int r = 0; |
993 | int r = 0; |
867 | |
994 | |
868 | if (x >> 16) { x >>= 16; r += 16; } |
995 | if (x >> 16) { x >>= 16; r += 16; } |
869 | if (x >> 8) { x >>= 8; r += 8; } |
996 | if (x >> 8) { x >>= 8; r += 8; } |
870 | if (x >> 4) { x >>= 4; r += 4; } |
997 | if (x >> 4) { x >>= 4; r += 4; } |
871 | if (x >> 2) { x >>= 2; r += 2; } |
998 | if (x >> 2) { x >>= 2; r += 2; } |
872 | if (x >> 1) { r += 1; } |
999 | if (x >> 1) { r += 1; } |
873 | |
1000 | |
874 | return r; |
1001 | return r; |
|
|
1002 | #endif |
875 | } |
1003 | } |
876 | |
1004 | |
877 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
878 | ecb_function_ int ecb_ld64 (uint64_t x) |
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
879 | { |
1007 | { |
|
|
1008 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1009 | unsigned long r; |
|
|
1010 | _BitScanReverse64 (&r, x); |
|
|
1011 | return (int)r; |
|
|
1012 | #else |
880 | int r = 0; |
1013 | int r = 0; |
881 | |
1014 | |
882 | if (x >> 32) { x >>= 32; r += 32; } |
1015 | if (x >> 32) { x >>= 32; r += 32; } |
883 | |
1016 | |
884 | return r + ecb_ld32 (x); |
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
885 | } |
1019 | } |
886 | #endif |
1020 | #endif |
887 | |
1021 | |
888 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
1022 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
889 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
1023 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
890 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
891 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
892 | |
1026 | |
893 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
894 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
895 | { |
1029 | { |
896 | return ( (x * 0x0802U & 0x22110U) |
1030 | return ( (x * 0x0802U & 0x22110U) |
897 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
898 | } |
1032 | } |
899 | |
1033 | |
900 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
901 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
902 | { |
1036 | { |
903 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
904 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
905 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
906 | x = ( x >> 8 ) | ( x << 8); |
1040 | x = ( x >> 8 ) | ( x << 8); |
907 | |
1041 | |
908 | return x; |
1042 | return x; |
909 | } |
1043 | } |
910 | |
1044 | |
911 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
912 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
913 | { |
1047 | { |
914 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
915 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
916 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
917 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
920 | return x; |
1054 | return x; |
921 | } |
1055 | } |
922 | |
1056 | |
923 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
924 | /* so for this version we are lazy */ |
1058 | /* so for this version we are lazy */ |
925 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
926 | ecb_function_ int |
1060 | ecb_function_ ecb_const int |
927 | ecb_popcount64 (uint64_t x) |
1061 | ecb_popcount64 (uint64_t x) |
928 | { |
1062 | { |
929 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
930 | } |
1064 | } |
931 | |
1065 | |
932 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
1066 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
933 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
1067 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
934 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
1068 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
935 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
1069 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
936 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
1070 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
937 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
1071 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
938 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
1072 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
939 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
1073 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
940 | |
1074 | |
941 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
1075 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
942 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
1076 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
943 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
1077 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
944 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
1078 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
945 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
1079 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
946 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
1080 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
947 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
1081 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
948 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
1082 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
949 | |
1083 | |
950 | #if ECB_GCC_VERSION(4,3) |
1084 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1085 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1086 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1087 | #else |
951 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
952 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
953 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
1091 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1092 | #elif _MSC_VER |
|
|
1093 | #include <stdlib.h> |
|
|
1094 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1095 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1096 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
954 | #else |
1097 | #else |
955 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
956 | ecb_function_ uint16_t |
1099 | ecb_function_ ecb_const uint16_t |
957 | ecb_bswap16 (uint16_t x) |
1100 | ecb_bswap16 (uint16_t x) |
958 | { |
1101 | { |
959 | return ecb_rotl16 (x, 8); |
1102 | return ecb_rotl16 (x, 8); |
960 | } |
1103 | } |
961 | |
1104 | |
962 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
963 | ecb_function_ uint32_t |
1106 | ecb_function_ ecb_const uint32_t |
964 | ecb_bswap32 (uint32_t x) |
1107 | ecb_bswap32 (uint32_t x) |
965 | { |
1108 | { |
966 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
967 | } |
1110 | } |
968 | |
1111 | |
969 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
970 | ecb_function_ uint64_t |
1113 | ecb_function_ ecb_const uint64_t |
971 | ecb_bswap64 (uint64_t x) |
1114 | ecb_bswap64 (uint64_t x) |
972 | { |
1115 | { |
973 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
974 | } |
1117 | } |
975 | #endif |
1118 | #endif |
976 | |
1119 | |
977 | #if ECB_GCC_VERSION(4,5) |
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
978 | #define ecb_unreachable() __builtin_unreachable () |
1121 | #define ecb_unreachable() __builtin_unreachable () |
979 | #else |
1122 | #else |
980 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
1123 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
981 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
982 | ecb_inline void ecb_unreachable (void) { } |
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
983 | #endif |
1126 | #endif |
984 | |
1127 | |
985 | /* try to tell the compiler that some condition is definitely true */ |
1128 | /* try to tell the compiler that some condition is definitely true */ |
986 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
987 | |
1130 | |
988 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
989 | ecb_inline unsigned char |
1132 | ecb_inline ecb_const uint32_t |
990 | ecb_byteorder_helper (void) |
1133 | ecb_byteorder_helper (void) |
991 | { |
1134 | { |
992 | /* the union code still generates code under pressure in gcc, */ |
1135 | /* the union code still generates code under pressure in gcc, */ |
993 | /* but less than using pointers, and always seems to */ |
1136 | /* but less than using pointers, and always seems to */ |
994 | /* successfully return a constant. */ |
1137 | /* successfully return a constant. */ |
995 | /* the reason why we have this horrible preprocessor mess */ |
1138 | /* the reason why we have this horrible preprocessor mess */ |
996 | /* is to avoid it in all cases, at least on common architectures */ |
1139 | /* is to avoid it in all cases, at least on common architectures */ |
997 | /* or when using a recent enough gcc version (>= 4.6) */ |
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
998 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
999 | return 0x44; |
|
|
1000 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
1141 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1142 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1143 | #define ECB_LITTLE_ENDIAN 1 |
1001 | return 0x44; |
1144 | return 0x44332211; |
1002 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
1145 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1146 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1147 | #define ECB_BIG_ENDIAN 1 |
1003 | return 0x11; |
1148 | return 0x11223344; |
1004 | #else |
1149 | #else |
1005 | union |
1150 | union |
1006 | { |
1151 | { |
|
|
1152 | uint8_t c[4]; |
1007 | uint32_t i; |
1153 | uint32_t u; |
1008 | uint8_t c; |
|
|
1009 | } u = { 0x11223344 }; |
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1010 | return u.c; |
1155 | return u.u; |
1011 | #endif |
1156 | #endif |
1012 | } |
1157 | } |
1013 | |
1158 | |
1014 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1015 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1160 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
1016 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1017 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
1162 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
1018 | |
1163 | |
1019 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1020 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1165 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
1021 | #else |
1166 | #else |
1022 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1167 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
1023 | #endif |
1168 | #endif |
1024 | |
1169 | |
1025 | #if __cplusplus |
1170 | #if ECB_CPP |
1026 | template<typename T> |
1171 | template<typename T> |
1027 | static inline T ecb_div_rd (T val, T div) |
1172 | static inline T ecb_div_rd (T val, T div) |
1028 | { |
1173 | { |
1029 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1030 | } |
1175 | } |
… | |
… | |
1047 | } |
1192 | } |
1048 | #else |
1193 | #else |
1049 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1050 | #endif |
1195 | #endif |
1051 | |
1196 | |
|
|
1197 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1198 | ecb_function_ ecb_const uint32_t |
|
|
1199 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1200 | { |
|
|
1201 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1202 | int e = (x >> 10) & 0x001f; |
|
|
1203 | unsigned int m = x & 0x03ff; |
|
|
1204 | |
|
|
1205 | if (ecb_expect_false (e == 31)) |
|
|
1206 | /* infinity or NaN */ |
|
|
1207 | e = 255 - (127 - 15); |
|
|
1208 | else if (ecb_expect_false (!e)) |
|
|
1209 | { |
|
|
1210 | if (ecb_expect_true (!m)) |
|
|
1211 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1212 | e = 0 - (127 - 15); |
|
|
1213 | else |
|
|
1214 | { |
|
|
1215 | /* subnormal, renormalise */ |
|
|
1216 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1217 | |
|
|
1218 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1219 | e -= s - 1; |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1224 | e += 127 - 15; |
|
|
1225 | |
|
|
1226 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint16_t |
|
|
1231 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1234 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1235 | unsigned int m = x & 0x007fffff; |
|
|
1236 | |
|
|
1237 | x &= 0x7fffffff; |
|
|
1238 | |
|
|
1239 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1240 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1241 | { |
|
|
1242 | /* mantissa round-to-even */ |
|
|
1243 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1244 | |
|
|
1245 | /* handle overflow */ |
|
|
1246 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1247 | { |
|
|
1248 | m >>= 1; |
|
|
1249 | e += 1; |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* handle large numbers and infinity */ |
|
|
1256 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1257 | return s | 0x7c00; |
|
|
1258 | |
|
|
1259 | /* handle zero, subnormals and small numbers */ |
|
|
1260 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1261 | { |
|
|
1262 | /* zero */ |
|
|
1263 | if (ecb_expect_true (!x)) |
|
|
1264 | return s; |
|
|
1265 | |
|
|
1266 | /* handle subnormals */ |
|
|
1267 | |
|
|
1268 | /* too small, will be zero */ |
|
|
1269 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1270 | return s; |
|
|
1271 | |
|
|
1272 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1273 | |
|
|
1274 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1275 | { |
|
|
1276 | unsigned int bits = 14 - e; |
|
|
1277 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1278 | unsigned int even = (m >> bits) & 1; |
|
|
1279 | |
|
|
1280 | /* if this overflows, we will end up with a normalised number */ |
|
|
1281 | m = (m + half + even) >> bits; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | m; |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1288 | m >>= 13; |
|
|
1289 | |
|
|
1290 | return s | 0x7c00 | m | !m; |
|
|
1291 | } |
|
|
1292 | |
1052 | /*******************************************************************************/ |
1293 | /*******************************************************************************/ |
1053 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1054 | |
1295 | |
1055 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1056 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1057 | #if 0 \ |
1298 | #if 0 \ |
1058 | || __i386 || __i386__ \ |
1299 | || __i386 || __i386__ \ |
1059 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1300 | || ECB_GCC_AMD64 \ |
1060 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1061 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1062 | || defined __s390__ || defined __s390x__ \ |
1302 | || defined __s390__ || defined __s390x__ \ |
1063 | || defined __mips__ \ |
1303 | || defined __mips__ \ |
1064 | || defined __alpha__ \ |
1304 | || defined __alpha__ \ |
1065 | || defined __hppa__ \ |
1305 | || defined __hppa__ \ |
1066 | || defined __ia64__ \ |
1306 | || defined __ia64__ \ |
1067 | || defined __m68k__ \ |
1307 | || defined __m68k__ \ |
1068 | || defined __m88k__ \ |
1308 | || defined __m88k__ \ |
1069 | || defined __sh__ \ |
1309 | || defined __sh__ \ |
1070 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1312 | || defined __aarch64__ |
1071 | #define ECB_STDFP 1 |
1313 | #define ECB_STDFP 1 |
1072 | #include <string.h> /* for memcpy */ |
1314 | #include <string.h> /* for memcpy */ |
1073 | #else |
1315 | #else |
1074 | #define ECB_STDFP 0 |
1316 | #define ECB_STDFP 0 |
1075 | #endif |
1317 | #endif |
… | |
… | |
1089 | #define ECB_NAN NAN |
1331 | #define ECB_NAN NAN |
1090 | #else |
1332 | #else |
1091 | #define ECB_NAN ECB_INFINITY |
1333 | #define ECB_NAN ECB_INFINITY |
1092 | #endif |
1334 | #endif |
1093 | |
1335 | |
1094 | /* converts an ieee half/binary16 to a float */ |
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1095 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1096 | ecb_function_ float |
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1097 | ecb_binary16_to_float (uint16_t x) |
1339 | #else |
1098 | { |
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1099 | int e = (x >> 10) & 0x1f; |
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1100 | int m = x & 0x3ff; |
1342 | #endif |
1101 | float r; |
|
|
1102 | |
|
|
1103 | if (!e ) r = ldexpf (m , -24); |
|
|
1104 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1105 | else if (m ) r = ECB_NAN; |
|
|
1106 | else r = ECB_INFINITY; |
|
|
1107 | |
|
|
1108 | return x & 0x8000 ? -r : r; |
|
|
1109 | } |
|
|
1110 | |
1343 | |
1111 | /* convert a float to ieee single/binary32 */ |
1344 | /* convert a float to ieee single/binary32 */ |
1112 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
1345 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
1113 | ecb_function_ uint32_t |
1346 | ecb_function_ ecb_const uint32_t |
1114 | ecb_float_to_binary32 (float x) |
1347 | ecb_float_to_binary32 (float x) |
1115 | { |
1348 | { |
1116 | uint32_t r; |
1349 | uint32_t r; |
1117 | |
1350 | |
1118 | #if ECB_STDFP |
1351 | #if ECB_STDFP |
… | |
… | |
1125 | if (x == 0e0f ) return 0x00000000U; |
1358 | if (x == 0e0f ) return 0x00000000U; |
1126 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1127 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1128 | if (x != x ) return 0x7fbfffffU; |
1361 | if (x != x ) return 0x7fbfffffU; |
1129 | |
1362 | |
1130 | m = frexpf (x, &e) * 0x1000000U; |
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1131 | |
1364 | |
1132 | r = m & 0x80000000U; |
1365 | r = m & 0x80000000U; |
1133 | |
1366 | |
1134 | if (r) |
1367 | if (r) |
1135 | m = -m; |
1368 | m = -m; |
… | |
… | |
1147 | |
1380 | |
1148 | return r; |
1381 | return r; |
1149 | } |
1382 | } |
1150 | |
1383 | |
1151 | /* converts an ieee single/binary32 to a float */ |
1384 | /* converts an ieee single/binary32 to a float */ |
1152 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
1385 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
1153 | ecb_function_ float |
1386 | ecb_function_ ecb_const float |
1154 | ecb_binary32_to_float (uint32_t x) |
1387 | ecb_binary32_to_float (uint32_t x) |
1155 | { |
1388 | { |
1156 | float r; |
1389 | float r; |
1157 | |
1390 | |
1158 | #if ECB_STDFP |
1391 | #if ECB_STDFP |
… | |
… | |
1168 | x |= 0x800000U; |
1401 | x |= 0x800000U; |
1169 | else |
1402 | else |
1170 | e = 1; |
1403 | e = 1; |
1171 | |
1404 | |
1172 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1405 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
1173 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1174 | |
1407 | |
1175 | r = neg ? -r : r; |
1408 | r = neg ? -r : r; |
1176 | #endif |
1409 | #endif |
1177 | |
1410 | |
1178 | return r; |
1411 | return r; |
1179 | } |
1412 | } |
1180 | |
1413 | |
1181 | /* convert a double to ieee double/binary64 */ |
1414 | /* convert a double to ieee double/binary64 */ |
1182 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
1415 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
1183 | ecb_function_ uint64_t |
1416 | ecb_function_ ecb_const uint64_t |
1184 | ecb_double_to_binary64 (double x) |
1417 | ecb_double_to_binary64 (double x) |
1185 | { |
1418 | { |
1186 | uint64_t r; |
1419 | uint64_t r; |
1187 | |
1420 | |
1188 | #if ECB_STDFP |
1421 | #if ECB_STDFP |
… | |
… | |
1217 | |
1450 | |
1218 | return r; |
1451 | return r; |
1219 | } |
1452 | } |
1220 | |
1453 | |
1221 | /* converts an ieee double/binary64 to a double */ |
1454 | /* converts an ieee double/binary64 to a double */ |
1222 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
1455 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
1223 | ecb_function_ double |
1456 | ecb_function_ ecb_const double |
1224 | ecb_binary64_to_double (uint64_t x) |
1457 | ecb_binary64_to_double (uint64_t x) |
1225 | { |
1458 | { |
1226 | double r; |
1459 | double r; |
1227 | |
1460 | |
1228 | #if ECB_STDFP |
1461 | #if ECB_STDFP |
… | |
… | |
1244 | |
1477 | |
1245 | r = neg ? -r : r; |
1478 | r = neg ? -r : r; |
1246 | #endif |
1479 | #endif |
1247 | |
1480 | |
1248 | return r; |
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a float to ieee half/binary16 */ |
|
|
1485 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1486 | ecb_function_ ecb_const uint16_t |
|
|
1487 | ecb_float_to_binary16 (float x) |
|
|
1488 | { |
|
|
1489 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | /* convert an ieee half/binary16 to float */ |
|
|
1493 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1494 | ecb_function_ ecb_const float |
|
|
1495 | ecb_binary16_to_float (uint16_t x) |
|
|
1496 | { |
|
|
1497 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
1249 | } |
1498 | } |
1250 | |
1499 | |
1251 | #endif |
1500 | #endif |
1252 | |
1501 | |
1253 | #endif |
1502 | #endif |
… | |
… | |
1278 | #define inline_size ecb_inline |
1527 | #define inline_size ecb_inline |
1279 | |
1528 | |
1280 | #if EV_FEATURE_CODE |
1529 | #if EV_FEATURE_CODE |
1281 | # define inline_speed ecb_inline |
1530 | # define inline_speed ecb_inline |
1282 | #else |
1531 | #else |
1283 | # define inline_speed static noinline |
1532 | # define inline_speed noinline static |
1284 | #endif |
1533 | #endif |
1285 | |
1534 | |
1286 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1287 | |
1536 | |
1288 | #if EV_MINPRI == EV_MAXPRI |
1537 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
1335 | #else |
1584 | #else |
1336 | |
1585 | |
1337 | #include <float.h> |
1586 | #include <float.h> |
1338 | |
1587 | |
1339 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
1588 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1589 | noinline |
1340 | static ev_tstamp noinline |
1590 | static ev_tstamp |
1341 | ev_floor (ev_tstamp v) |
1591 | ev_floor (ev_tstamp v) |
1342 | { |
1592 | { |
1343 | /* the choice of shift factor is not terribly important */ |
1593 | /* the choice of shift factor is not terribly important */ |
1344 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1594 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
1345 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
1595 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
… | |
… | |
1377 | |
1627 | |
1378 | #ifdef __linux |
1628 | #ifdef __linux |
1379 | # include <sys/utsname.h> |
1629 | # include <sys/utsname.h> |
1380 | #endif |
1630 | #endif |
1381 | |
1631 | |
1382 | static unsigned int noinline ecb_cold |
1632 | noinline ecb_cold |
|
|
1633 | static unsigned int |
1383 | ev_linux_version (void) |
1634 | ev_linux_version (void) |
1384 | { |
1635 | { |
1385 | #ifdef __linux |
1636 | #ifdef __linux |
1386 | unsigned int v = 0; |
1637 | unsigned int v = 0; |
1387 | struct utsname buf; |
1638 | struct utsname buf; |
… | |
… | |
1416 | } |
1667 | } |
1417 | |
1668 | |
1418 | /*****************************************************************************/ |
1669 | /*****************************************************************************/ |
1419 | |
1670 | |
1420 | #if EV_AVOID_STDIO |
1671 | #if EV_AVOID_STDIO |
1421 | static void noinline ecb_cold |
1672 | noinline ecb_cold |
|
|
1673 | static void |
1422 | ev_printerr (const char *msg) |
1674 | ev_printerr (const char *msg) |
1423 | { |
1675 | { |
1424 | write (STDERR_FILENO, msg, strlen (msg)); |
1676 | write (STDERR_FILENO, msg, strlen (msg)); |
1425 | } |
1677 | } |
1426 | #endif |
1678 | #endif |
1427 | |
1679 | |
1428 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1680 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1429 | |
1681 | |
1430 | void ecb_cold |
1682 | ecb_cold |
|
|
1683 | void |
1431 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1684 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1432 | { |
1685 | { |
1433 | syserr_cb = cb; |
1686 | syserr_cb = cb; |
1434 | } |
1687 | } |
1435 | |
1688 | |
1436 | static void noinline ecb_cold |
1689 | noinline ecb_cold |
|
|
1690 | static void |
1437 | ev_syserr (const char *msg) |
1691 | ev_syserr (const char *msg) |
1438 | { |
1692 | { |
1439 | if (!msg) |
1693 | if (!msg) |
1440 | msg = "(libev) system error"; |
1694 | msg = "(libev) system error"; |
1441 | |
1695 | |
… | |
… | |
1472 | return 0; |
1726 | return 0; |
1473 | } |
1727 | } |
1474 | |
1728 | |
1475 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1729 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1476 | |
1730 | |
1477 | void ecb_cold |
1731 | ecb_cold |
|
|
1732 | void |
1478 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1733 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1479 | { |
1734 | { |
1480 | alloc = cb; |
1735 | alloc = cb; |
1481 | } |
1736 | } |
1482 | |
1737 | |
… | |
… | |
1691 | } |
1946 | } |
1692 | |
1947 | |
1693 | return ncur; |
1948 | return ncur; |
1694 | } |
1949 | } |
1695 | |
1950 | |
1696 | static void * noinline ecb_cold |
1951 | noinline ecb_cold |
|
|
1952 | static void * |
1697 | array_realloc (int elem, void *base, int *cur, int cnt) |
1953 | array_realloc (int elem, void *base, int *cur, int cnt) |
1698 | { |
1954 | { |
1699 | *cur = array_nextsize (elem, *cur, cnt); |
1955 | *cur = array_nextsize (elem, *cur, cnt); |
1700 | return ev_realloc (base, elem * *cur); |
1956 | return ev_realloc (base, elem * *cur); |
1701 | } |
1957 | } |
… | |
… | |
1704 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1960 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1705 | |
1961 | |
1706 | #define array_needsize(type,base,cur,cnt,init) \ |
1962 | #define array_needsize(type,base,cur,cnt,init) \ |
1707 | if (expect_false ((cnt) > (cur))) \ |
1963 | if (expect_false ((cnt) > (cur))) \ |
1708 | { \ |
1964 | { \ |
1709 | int ecb_unused ocur_ = (cur); \ |
1965 | ecb_unused int ocur_ = (cur); \ |
1710 | (base) = (type *)array_realloc \ |
1966 | (base) = (type *)array_realloc \ |
1711 | (sizeof (type), (base), &(cur), (cnt)); \ |
1967 | (sizeof (type), (base), &(cur), (cnt)); \ |
1712 | init ((base) + (ocur_), (cur) - ocur_); \ |
1968 | init ((base) + (ocur_), (cur) - ocur_); \ |
1713 | } |
1969 | } |
1714 | |
1970 | |
… | |
… | |
1726 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1982 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
1727 | |
1983 | |
1728 | /*****************************************************************************/ |
1984 | /*****************************************************************************/ |
1729 | |
1985 | |
1730 | /* dummy callback for pending events */ |
1986 | /* dummy callback for pending events */ |
1731 | static void noinline |
1987 | noinline |
|
|
1988 | static void |
1732 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1989 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1733 | { |
1990 | { |
1734 | } |
1991 | } |
1735 | |
1992 | |
1736 | void noinline |
1993 | noinline |
|
|
1994 | void |
1737 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1995 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
1738 | { |
1996 | { |
1739 | W w_ = (W)w; |
1997 | W w_ = (W)w; |
1740 | int pri = ABSPRI (w_); |
1998 | int pri = ABSPRI (w_); |
1741 | |
1999 | |
… | |
… | |
1871 | |
2129 | |
1872 | fdchangecnt = 0; |
2130 | fdchangecnt = 0; |
1873 | } |
2131 | } |
1874 | |
2132 | |
1875 | /* something about the given fd changed */ |
2133 | /* something about the given fd changed */ |
1876 | inline_size void |
2134 | inline_size |
|
|
2135 | void |
1877 | fd_change (EV_P_ int fd, int flags) |
2136 | fd_change (EV_P_ int fd, int flags) |
1878 | { |
2137 | { |
1879 | unsigned char reify = anfds [fd].reify; |
2138 | unsigned char reify = anfds [fd].reify; |
1880 | anfds [fd].reify |= flags; |
2139 | anfds [fd].reify |= flags; |
1881 | |
2140 | |
… | |
… | |
1886 | fdchanges [fdchangecnt - 1] = fd; |
2145 | fdchanges [fdchangecnt - 1] = fd; |
1887 | } |
2146 | } |
1888 | } |
2147 | } |
1889 | |
2148 | |
1890 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2149 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1891 | inline_speed void ecb_cold |
2150 | inline_speed ecb_cold void |
1892 | fd_kill (EV_P_ int fd) |
2151 | fd_kill (EV_P_ int fd) |
1893 | { |
2152 | { |
1894 | ev_io *w; |
2153 | ev_io *w; |
1895 | |
2154 | |
1896 | while ((w = (ev_io *)anfds [fd].head)) |
2155 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1899 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2158 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1900 | } |
2159 | } |
1901 | } |
2160 | } |
1902 | |
2161 | |
1903 | /* check whether the given fd is actually valid, for error recovery */ |
2162 | /* check whether the given fd is actually valid, for error recovery */ |
1904 | inline_size int ecb_cold |
2163 | inline_size ecb_cold int |
1905 | fd_valid (int fd) |
2164 | fd_valid (int fd) |
1906 | { |
2165 | { |
1907 | #ifdef _WIN32 |
2166 | #ifdef _WIN32 |
1908 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2167 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1909 | #else |
2168 | #else |
1910 | return fcntl (fd, F_GETFD) != -1; |
2169 | return fcntl (fd, F_GETFD) != -1; |
1911 | #endif |
2170 | #endif |
1912 | } |
2171 | } |
1913 | |
2172 | |
1914 | /* called on EBADF to verify fds */ |
2173 | /* called on EBADF to verify fds */ |
1915 | static void noinline ecb_cold |
2174 | noinline ecb_cold |
|
|
2175 | static void |
1916 | fd_ebadf (EV_P) |
2176 | fd_ebadf (EV_P) |
1917 | { |
2177 | { |
1918 | int fd; |
2178 | int fd; |
1919 | |
2179 | |
1920 | for (fd = 0; fd < anfdmax; ++fd) |
2180 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1922 | if (!fd_valid (fd) && errno == EBADF) |
2182 | if (!fd_valid (fd) && errno == EBADF) |
1923 | fd_kill (EV_A_ fd); |
2183 | fd_kill (EV_A_ fd); |
1924 | } |
2184 | } |
1925 | |
2185 | |
1926 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2186 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1927 | static void noinline ecb_cold |
2187 | noinline ecb_cold |
|
|
2188 | static void |
1928 | fd_enomem (EV_P) |
2189 | fd_enomem (EV_P) |
1929 | { |
2190 | { |
1930 | int fd; |
2191 | int fd; |
1931 | |
2192 | |
1932 | for (fd = anfdmax; fd--; ) |
2193 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1936 | break; |
2197 | break; |
1937 | } |
2198 | } |
1938 | } |
2199 | } |
1939 | |
2200 | |
1940 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2201 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1941 | static void noinline |
2202 | noinline |
|
|
2203 | static void |
1942 | fd_rearm_all (EV_P) |
2204 | fd_rearm_all (EV_P) |
1943 | { |
2205 | { |
1944 | int fd; |
2206 | int fd; |
1945 | |
2207 | |
1946 | for (fd = 0; fd < anfdmax; ++fd) |
2208 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
2127 | |
2389 | |
2128 | /*****************************************************************************/ |
2390 | /*****************************************************************************/ |
2129 | |
2391 | |
2130 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2392 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2131 | |
2393 | |
2132 | static void noinline ecb_cold |
2394 | noinline ecb_cold |
|
|
2395 | static void |
2133 | evpipe_init (EV_P) |
2396 | evpipe_init (EV_P) |
2134 | { |
2397 | { |
2135 | if (!ev_is_active (&pipe_w)) |
2398 | if (!ev_is_active (&pipe_w)) |
2136 | { |
2399 | { |
2137 | int fds [2]; |
2400 | int fds [2]; |
… | |
… | |
2315 | #endif |
2578 | #endif |
2316 | |
2579 | |
2317 | ev_feed_signal (signum); |
2580 | ev_feed_signal (signum); |
2318 | } |
2581 | } |
2319 | |
2582 | |
2320 | void noinline |
2583 | noinline |
|
|
2584 | void |
2321 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2585 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2322 | { |
2586 | { |
2323 | WL w; |
2587 | WL w; |
2324 | |
2588 | |
2325 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
2589 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
… | |
… | |
2442 | #endif |
2706 | #endif |
2443 | #if EV_USE_SELECT |
2707 | #if EV_USE_SELECT |
2444 | # include "ev_select.c" |
2708 | # include "ev_select.c" |
2445 | #endif |
2709 | #endif |
2446 | |
2710 | |
2447 | int ecb_cold |
2711 | ecb_cold int |
2448 | ev_version_major (void) EV_THROW |
2712 | ev_version_major (void) EV_THROW |
2449 | { |
2713 | { |
2450 | return EV_VERSION_MAJOR; |
2714 | return EV_VERSION_MAJOR; |
2451 | } |
2715 | } |
2452 | |
2716 | |
2453 | int ecb_cold |
2717 | ecb_cold int |
2454 | ev_version_minor (void) EV_THROW |
2718 | ev_version_minor (void) EV_THROW |
2455 | { |
2719 | { |
2456 | return EV_VERSION_MINOR; |
2720 | return EV_VERSION_MINOR; |
2457 | } |
2721 | } |
2458 | |
2722 | |
2459 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2723 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2460 | int inline_size ecb_cold |
2724 | inline_size ecb_cold int |
2461 | enable_secure (void) |
2725 | enable_secure (void) |
2462 | { |
2726 | { |
2463 | #ifdef _WIN32 |
2727 | #ifdef _WIN32 |
2464 | return 0; |
2728 | return 0; |
2465 | #else |
2729 | #else |
2466 | return getuid () != geteuid () |
2730 | return getuid () != geteuid () |
2467 | || getgid () != getegid (); |
2731 | || getgid () != getegid (); |
2468 | #endif |
2732 | #endif |
2469 | } |
2733 | } |
2470 | |
2734 | |
2471 | unsigned int ecb_cold |
2735 | ecb_cold |
|
|
2736 | unsigned int |
2472 | ev_supported_backends (void) EV_THROW |
2737 | ev_supported_backends (void) EV_THROW |
2473 | { |
2738 | { |
2474 | unsigned int flags = 0; |
2739 | unsigned int flags = 0; |
2475 | |
2740 | |
2476 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2741 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
2480 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2745 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2481 | |
2746 | |
2482 | return flags; |
2747 | return flags; |
2483 | } |
2748 | } |
2484 | |
2749 | |
2485 | unsigned int ecb_cold |
2750 | ecb_cold |
|
|
2751 | unsigned int |
2486 | ev_recommended_backends (void) EV_THROW |
2752 | ev_recommended_backends (void) EV_THROW |
2487 | { |
2753 | { |
2488 | unsigned int flags = ev_supported_backends (); |
2754 | unsigned int flags = ev_supported_backends (); |
2489 | |
2755 | |
2490 | #ifndef __NetBSD__ |
2756 | #ifndef __NetBSD__ |
… | |
… | |
2502 | #endif |
2768 | #endif |
2503 | |
2769 | |
2504 | return flags; |
2770 | return flags; |
2505 | } |
2771 | } |
2506 | |
2772 | |
2507 | unsigned int ecb_cold |
2773 | ecb_cold |
|
|
2774 | unsigned int |
2508 | ev_embeddable_backends (void) EV_THROW |
2775 | ev_embeddable_backends (void) EV_THROW |
2509 | { |
2776 | { |
2510 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2777 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2511 | |
2778 | |
2512 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2779 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
2564 | { |
2831 | { |
2565 | invoke_cb = invoke_pending_cb; |
2832 | invoke_cb = invoke_pending_cb; |
2566 | } |
2833 | } |
2567 | |
2834 | |
2568 | void |
2835 | void |
2569 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2836 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2570 | { |
2837 | { |
2571 | release_cb = release; |
2838 | release_cb = release; |
2572 | acquire_cb = acquire; |
2839 | acquire_cb = acquire; |
2573 | } |
2840 | } |
2574 | #endif |
2841 | #endif |
2575 | |
2842 | |
2576 | /* initialise a loop structure, must be zero-initialised */ |
2843 | /* initialise a loop structure, must be zero-initialised */ |
2577 | static void noinline ecb_cold |
2844 | noinline ecb_cold |
|
|
2845 | static void |
2578 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2846 | loop_init (EV_P_ unsigned int flags) EV_THROW |
2579 | { |
2847 | { |
2580 | if (!backend) |
2848 | if (!backend) |
2581 | { |
2849 | { |
2582 | origflags = flags; |
2850 | origflags = flags; |
… | |
… | |
2669 | #endif |
2937 | #endif |
2670 | } |
2938 | } |
2671 | } |
2939 | } |
2672 | |
2940 | |
2673 | /* free up a loop structure */ |
2941 | /* free up a loop structure */ |
2674 | void ecb_cold |
2942 | ecb_cold |
|
|
2943 | void |
2675 | ev_loop_destroy (EV_P) |
2944 | ev_loop_destroy (EV_P) |
2676 | { |
2945 | { |
2677 | int i; |
2946 | int i; |
2678 | |
2947 | |
2679 | #if EV_MULTIPLICITY |
2948 | #if EV_MULTIPLICITY |
… | |
… | |
2800 | #if EV_USE_INOTIFY |
3069 | #if EV_USE_INOTIFY |
2801 | infy_fork (EV_A); |
3070 | infy_fork (EV_A); |
2802 | #endif |
3071 | #endif |
2803 | |
3072 | |
2804 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3073 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2805 | if (ev_is_active (&pipe_w)) |
3074 | if (ev_is_active (&pipe_w) && postfork != 2) |
2806 | { |
3075 | { |
2807 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3076 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2808 | |
3077 | |
2809 | ev_ref (EV_A); |
3078 | ev_ref (EV_A); |
2810 | ev_io_stop (EV_A_ &pipe_w); |
3079 | ev_io_stop (EV_A_ &pipe_w); |
… | |
… | |
2821 | postfork = 0; |
3090 | postfork = 0; |
2822 | } |
3091 | } |
2823 | |
3092 | |
2824 | #if EV_MULTIPLICITY |
3093 | #if EV_MULTIPLICITY |
2825 | |
3094 | |
|
|
3095 | ecb_cold |
2826 | struct ev_loop * ecb_cold |
3096 | struct ev_loop * |
2827 | ev_loop_new (unsigned int flags) EV_THROW |
3097 | ev_loop_new (unsigned int flags) EV_THROW |
2828 | { |
3098 | { |
2829 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3099 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2830 | |
3100 | |
2831 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3101 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2839 | } |
3109 | } |
2840 | |
3110 | |
2841 | #endif /* multiplicity */ |
3111 | #endif /* multiplicity */ |
2842 | |
3112 | |
2843 | #if EV_VERIFY |
3113 | #if EV_VERIFY |
2844 | static void noinline ecb_cold |
3114 | noinline ecb_cold |
|
|
3115 | static void |
2845 | verify_watcher (EV_P_ W w) |
3116 | verify_watcher (EV_P_ W w) |
2846 | { |
3117 | { |
2847 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3118 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2848 | |
3119 | |
2849 | if (w->pending) |
3120 | if (w->pending) |
2850 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3121 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2851 | } |
3122 | } |
2852 | |
3123 | |
2853 | static void noinline ecb_cold |
3124 | noinline ecb_cold |
|
|
3125 | static void |
2854 | verify_heap (EV_P_ ANHE *heap, int N) |
3126 | verify_heap (EV_P_ ANHE *heap, int N) |
2855 | { |
3127 | { |
2856 | int i; |
3128 | int i; |
2857 | |
3129 | |
2858 | for (i = HEAP0; i < N + HEAP0; ++i) |
3130 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2863 | |
3135 | |
2864 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3136 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2865 | } |
3137 | } |
2866 | } |
3138 | } |
2867 | |
3139 | |
2868 | static void noinline ecb_cold |
3140 | noinline ecb_cold |
|
|
3141 | static void |
2869 | array_verify (EV_P_ W *ws, int cnt) |
3142 | array_verify (EV_P_ W *ws, int cnt) |
2870 | { |
3143 | { |
2871 | while (cnt--) |
3144 | while (cnt--) |
2872 | { |
3145 | { |
2873 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3146 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2962 | #endif |
3235 | #endif |
2963 | } |
3236 | } |
2964 | #endif |
3237 | #endif |
2965 | |
3238 | |
2966 | #if EV_MULTIPLICITY |
3239 | #if EV_MULTIPLICITY |
|
|
3240 | ecb_cold |
2967 | struct ev_loop * ecb_cold |
3241 | struct ev_loop * |
2968 | #else |
3242 | #else |
2969 | int |
3243 | int |
2970 | #endif |
3244 | #endif |
2971 | ev_default_loop (unsigned int flags) EV_THROW |
3245 | ev_default_loop (unsigned int flags) EV_THROW |
2972 | { |
3246 | { |
… | |
… | |
3020 | count += pendingcnt [pri]; |
3294 | count += pendingcnt [pri]; |
3021 | |
3295 | |
3022 | return count; |
3296 | return count; |
3023 | } |
3297 | } |
3024 | |
3298 | |
3025 | void noinline |
3299 | noinline |
|
|
3300 | void |
3026 | ev_invoke_pending (EV_P) |
3301 | ev_invoke_pending (EV_P) |
3027 | { |
3302 | { |
3028 | pendingpri = NUMPRI; |
3303 | pendingpri = NUMPRI; |
3029 | |
3304 | |
3030 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
3305 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
… | |
… | |
3105 | } |
3380 | } |
3106 | } |
3381 | } |
3107 | |
3382 | |
3108 | #if EV_PERIODIC_ENABLE |
3383 | #if EV_PERIODIC_ENABLE |
3109 | |
3384 | |
3110 | static void noinline |
3385 | noinline |
|
|
3386 | static void |
3111 | periodic_recalc (EV_P_ ev_periodic *w) |
3387 | periodic_recalc (EV_P_ ev_periodic *w) |
3112 | { |
3388 | { |
3113 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3389 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
3114 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3390 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
3115 | |
3391 | |
… | |
… | |
3173 | } |
3449 | } |
3174 | } |
3450 | } |
3175 | |
3451 | |
3176 | /* simply recalculate all periodics */ |
3452 | /* simply recalculate all periodics */ |
3177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3453 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3178 | static void noinline ecb_cold |
3454 | noinline ecb_cold |
|
|
3455 | static void |
3179 | periodics_reschedule (EV_P) |
3456 | periodics_reschedule (EV_P) |
3180 | { |
3457 | { |
3181 | int i; |
3458 | int i; |
3182 | |
3459 | |
3183 | /* adjust periodics after time jump */ |
3460 | /* adjust periodics after time jump */ |
… | |
… | |
3196 | reheap (periodics, periodiccnt); |
3473 | reheap (periodics, periodiccnt); |
3197 | } |
3474 | } |
3198 | #endif |
3475 | #endif |
3199 | |
3476 | |
3200 | /* adjust all timers by a given offset */ |
3477 | /* adjust all timers by a given offset */ |
3201 | static void noinline ecb_cold |
3478 | noinline ecb_cold |
|
|
3479 | static void |
3202 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3480 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3203 | { |
3481 | { |
3204 | int i; |
3482 | int i; |
3205 | |
3483 | |
3206 | for (i = 0; i < timercnt; ++i) |
3484 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
3574 | w->active = 0; |
3852 | w->active = 0; |
3575 | } |
3853 | } |
3576 | |
3854 | |
3577 | /*****************************************************************************/ |
3855 | /*****************************************************************************/ |
3578 | |
3856 | |
3579 | void noinline |
3857 | noinline |
|
|
3858 | void |
3580 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3859 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
3581 | { |
3860 | { |
3582 | int fd = w->fd; |
3861 | int fd = w->fd; |
3583 | |
3862 | |
3584 | if (expect_false (ev_is_active (w))) |
3863 | if (expect_false (ev_is_active (w))) |
… | |
… | |
3600 | w->events &= ~EV__IOFDSET; |
3879 | w->events &= ~EV__IOFDSET; |
3601 | |
3880 | |
3602 | EV_FREQUENT_CHECK; |
3881 | EV_FREQUENT_CHECK; |
3603 | } |
3882 | } |
3604 | |
3883 | |
3605 | void noinline |
3884 | noinline |
|
|
3885 | void |
3606 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3886 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
3607 | { |
3887 | { |
3608 | clear_pending (EV_A_ (W)w); |
3888 | clear_pending (EV_A_ (W)w); |
3609 | if (expect_false (!ev_is_active (w))) |
3889 | if (expect_false (!ev_is_active (w))) |
3610 | return; |
3890 | return; |
… | |
… | |
3619 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3899 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
3620 | |
3900 | |
3621 | EV_FREQUENT_CHECK; |
3901 | EV_FREQUENT_CHECK; |
3622 | } |
3902 | } |
3623 | |
3903 | |
3624 | void noinline |
3904 | noinline |
|
|
3905 | void |
3625 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3906 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
3626 | { |
3907 | { |
3627 | if (expect_false (ev_is_active (w))) |
3908 | if (expect_false (ev_is_active (w))) |
3628 | return; |
3909 | return; |
3629 | |
3910 | |
… | |
… | |
3643 | EV_FREQUENT_CHECK; |
3924 | EV_FREQUENT_CHECK; |
3644 | |
3925 | |
3645 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3926 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3646 | } |
3927 | } |
3647 | |
3928 | |
3648 | void noinline |
3929 | noinline |
|
|
3930 | void |
3649 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3931 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
3650 | { |
3932 | { |
3651 | clear_pending (EV_A_ (W)w); |
3933 | clear_pending (EV_A_ (W)w); |
3652 | if (expect_false (!ev_is_active (w))) |
3934 | if (expect_false (!ev_is_active (w))) |
3653 | return; |
3935 | return; |
… | |
… | |
3673 | ev_stop (EV_A_ (W)w); |
3955 | ev_stop (EV_A_ (W)w); |
3674 | |
3956 | |
3675 | EV_FREQUENT_CHECK; |
3957 | EV_FREQUENT_CHECK; |
3676 | } |
3958 | } |
3677 | |
3959 | |
3678 | void noinline |
3960 | noinline |
|
|
3961 | void |
3679 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3962 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
3680 | { |
3963 | { |
3681 | EV_FREQUENT_CHECK; |
3964 | EV_FREQUENT_CHECK; |
3682 | |
3965 | |
3683 | clear_pending (EV_A_ (W)w); |
3966 | clear_pending (EV_A_ (W)w); |
… | |
… | |
3707 | { |
3990 | { |
3708 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3991 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3709 | } |
3992 | } |
3710 | |
3993 | |
3711 | #if EV_PERIODIC_ENABLE |
3994 | #if EV_PERIODIC_ENABLE |
3712 | void noinline |
3995 | noinline |
|
|
3996 | void |
3713 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3997 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
3714 | { |
3998 | { |
3715 | if (expect_false (ev_is_active (w))) |
3999 | if (expect_false (ev_is_active (w))) |
3716 | return; |
4000 | return; |
3717 | |
4001 | |
… | |
… | |
3737 | EV_FREQUENT_CHECK; |
4021 | EV_FREQUENT_CHECK; |
3738 | |
4022 | |
3739 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4023 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3740 | } |
4024 | } |
3741 | |
4025 | |
3742 | void noinline |
4026 | noinline |
|
|
4027 | void |
3743 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
4028 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
3744 | { |
4029 | { |
3745 | clear_pending (EV_A_ (W)w); |
4030 | clear_pending (EV_A_ (W)w); |
3746 | if (expect_false (!ev_is_active (w))) |
4031 | if (expect_false (!ev_is_active (w))) |
3747 | return; |
4032 | return; |
… | |
… | |
3765 | ev_stop (EV_A_ (W)w); |
4050 | ev_stop (EV_A_ (W)w); |
3766 | |
4051 | |
3767 | EV_FREQUENT_CHECK; |
4052 | EV_FREQUENT_CHECK; |
3768 | } |
4053 | } |
3769 | |
4054 | |
3770 | void noinline |
4055 | noinline |
|
|
4056 | void |
3771 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
4057 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
3772 | { |
4058 | { |
3773 | /* TODO: use adjustheap and recalculation */ |
4059 | /* TODO: use adjustheap and recalculation */ |
3774 | ev_periodic_stop (EV_A_ w); |
4060 | ev_periodic_stop (EV_A_ w); |
3775 | ev_periodic_start (EV_A_ w); |
4061 | ev_periodic_start (EV_A_ w); |
… | |
… | |
3780 | # define SA_RESTART 0 |
4066 | # define SA_RESTART 0 |
3781 | #endif |
4067 | #endif |
3782 | |
4068 | |
3783 | #if EV_SIGNAL_ENABLE |
4069 | #if EV_SIGNAL_ENABLE |
3784 | |
4070 | |
3785 | void noinline |
4071 | noinline |
|
|
4072 | void |
3786 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
4073 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
3787 | { |
4074 | { |
3788 | if (expect_false (ev_is_active (w))) |
4075 | if (expect_false (ev_is_active (w))) |
3789 | return; |
4076 | return; |
3790 | |
4077 | |
… | |
… | |
3862 | } |
4149 | } |
3863 | |
4150 | |
3864 | EV_FREQUENT_CHECK; |
4151 | EV_FREQUENT_CHECK; |
3865 | } |
4152 | } |
3866 | |
4153 | |
3867 | void noinline |
4154 | noinline |
|
|
4155 | void |
3868 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
4156 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
3869 | { |
4157 | { |
3870 | clear_pending (EV_A_ (W)w); |
4158 | clear_pending (EV_A_ (W)w); |
3871 | if (expect_false (!ev_is_active (w))) |
4159 | if (expect_false (!ev_is_active (w))) |
3872 | return; |
4160 | return; |
… | |
… | |
3948 | |
4236 | |
3949 | #define DEF_STAT_INTERVAL 5.0074891 |
4237 | #define DEF_STAT_INTERVAL 5.0074891 |
3950 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4238 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
3951 | #define MIN_STAT_INTERVAL 0.1074891 |
4239 | #define MIN_STAT_INTERVAL 0.1074891 |
3952 | |
4240 | |
3953 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4241 | noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3954 | |
4242 | |
3955 | #if EV_USE_INOTIFY |
4243 | #if EV_USE_INOTIFY |
3956 | |
4244 | |
3957 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
4245 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
3958 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4246 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3959 | |
4247 | |
3960 | static void noinline |
4248 | noinline |
|
|
4249 | static void |
3961 | infy_add (EV_P_ ev_stat *w) |
4250 | infy_add (EV_P_ ev_stat *w) |
3962 | { |
4251 | { |
3963 | w->wd = inotify_add_watch (fs_fd, w->path, |
4252 | w->wd = inotify_add_watch (fs_fd, w->path, |
3964 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
4253 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
3965 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
4254 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
… | |
… | |
4029 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4318 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
4030 | ev_timer_again (EV_A_ &w->timer); |
4319 | ev_timer_again (EV_A_ &w->timer); |
4031 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4320 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
4032 | } |
4321 | } |
4033 | |
4322 | |
4034 | static void noinline |
4323 | noinline |
|
|
4324 | static void |
4035 | infy_del (EV_P_ ev_stat *w) |
4325 | infy_del (EV_P_ ev_stat *w) |
4036 | { |
4326 | { |
4037 | int slot; |
4327 | int slot; |
4038 | int wd = w->wd; |
4328 | int wd = w->wd; |
4039 | |
4329 | |
… | |
… | |
4046 | |
4336 | |
4047 | /* remove this watcher, if others are watching it, they will rearm */ |
4337 | /* remove this watcher, if others are watching it, they will rearm */ |
4048 | inotify_rm_watch (fs_fd, wd); |
4338 | inotify_rm_watch (fs_fd, wd); |
4049 | } |
4339 | } |
4050 | |
4340 | |
4051 | static void noinline |
4341 | noinline |
|
|
4342 | static void |
4052 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4343 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4053 | { |
4344 | { |
4054 | if (slot < 0) |
4345 | if (slot < 0) |
4055 | /* overflow, need to check for all hash slots */ |
4346 | /* overflow, need to check for all hash slots */ |
4056 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
4347 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
… | |
… | |
4092 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4383 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4093 | ofs += sizeof (struct inotify_event) + ev->len; |
4384 | ofs += sizeof (struct inotify_event) + ev->len; |
4094 | } |
4385 | } |
4095 | } |
4386 | } |
4096 | |
4387 | |
4097 | inline_size void ecb_cold |
4388 | inline_size ecb_cold |
|
|
4389 | void |
4098 | ev_check_2625 (EV_P) |
4390 | ev_check_2625 (EV_P) |
4099 | { |
4391 | { |
4100 | /* kernels < 2.6.25 are borked |
4392 | /* kernels < 2.6.25 are borked |
4101 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4393 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4102 | */ |
4394 | */ |
… | |
… | |
4200 | w->attr.st_nlink = 0; |
4492 | w->attr.st_nlink = 0; |
4201 | else if (!w->attr.st_nlink) |
4493 | else if (!w->attr.st_nlink) |
4202 | w->attr.st_nlink = 1; |
4494 | w->attr.st_nlink = 1; |
4203 | } |
4495 | } |
4204 | |
4496 | |
4205 | static void noinline |
4497 | noinline |
|
|
4498 | static void |
4206 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4499 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4207 | { |
4500 | { |
4208 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4501 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4209 | |
4502 | |
4210 | ev_statdata prev = w->attr; |
4503 | ev_statdata prev = w->attr; |
… | |
… | |
4420 | EV_FREQUENT_CHECK; |
4713 | EV_FREQUENT_CHECK; |
4421 | } |
4714 | } |
4422 | #endif |
4715 | #endif |
4423 | |
4716 | |
4424 | #if EV_EMBED_ENABLE |
4717 | #if EV_EMBED_ENABLE |
4425 | void noinline |
4718 | noinline |
|
|
4719 | void |
4426 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4720 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
4427 | { |
4721 | { |
4428 | ev_run (w->other, EVRUN_NOWAIT); |
4722 | ev_run (w->other, EVRUN_NOWAIT); |
4429 | } |
4723 | } |
4430 | |
4724 | |
… | |
… | |
4727 | } |
5021 | } |
4728 | |
5022 | |
4729 | /*****************************************************************************/ |
5023 | /*****************************************************************************/ |
4730 | |
5024 | |
4731 | #if EV_WALK_ENABLE |
5025 | #if EV_WALK_ENABLE |
4732 | void ecb_cold |
5026 | ecb_cold |
|
|
5027 | void |
4733 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
5028 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
4734 | { |
5029 | { |
4735 | int i, j; |
5030 | int i, j; |
4736 | ev_watcher_list *wl, *wn; |
5031 | ev_watcher_list *wl, *wn; |
4737 | |
5032 | |