… | |
… | |
491 | /* 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 */ |
492 | /* ECB.H BEGIN */ |
492 | /* ECB.H BEGIN */ |
493 | /* |
493 | /* |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
494 | * libecb - http://software.schmorp.de/pkg/libecb |
495 | * |
495 | * |
496 | * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> |
496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
497 | * Copyright (©) 2011 Emanuele Giaquinta |
498 | * All rights reserved. |
498 | * All rights reserved. |
499 | * |
499 | * |
500 | * 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- |
501 | * tion, are permitted provided that the following conditions are met: |
501 | * tion, are permitted provided that the following conditions are met: |
… | |
… | |
532 | |
532 | |
533 | #ifndef ECB_H |
533 | #ifndef ECB_H |
534 | #define ECB_H |
534 | #define ECB_H |
535 | |
535 | |
536 | /* 16 bits major, 16 bits minor */ |
536 | /* 16 bits major, 16 bits minor */ |
537 | #define ECB_VERSION 0x00010003 |
537 | #define ECB_VERSION 0x00010005 |
538 | |
538 | |
539 | #ifdef _WIN32 |
539 | #ifdef _WIN32 |
540 | typedef signed char int8_t; |
540 | typedef signed char int8_t; |
541 | typedef unsigned char uint8_t; |
541 | typedef unsigned char uint8_t; |
542 | typedef signed short int16_t; |
542 | typedef signed short int16_t; |
… | |
… | |
559 | typedef uint32_t uintptr_t; |
559 | typedef uint32_t uintptr_t; |
560 | typedef int32_t intptr_t; |
560 | typedef int32_t intptr_t; |
561 | #endif |
561 | #endif |
562 | #else |
562 | #else |
563 | #include <inttypes.h> |
563 | #include <inttypes.h> |
564 | #if UINTMAX_MAX > 0xffffffffU |
564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
565 | #define ECB_PTRSIZE 8 |
565 | #define ECB_PTRSIZE 8 |
566 | #else |
566 | #else |
567 | #define ECB_PTRSIZE 4 |
567 | #define ECB_PTRSIZE 4 |
568 | #endif |
568 | #endif |
569 | #endif |
569 | #endif |
570 | |
570 | |
|
|
571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
573 | |
571 | /* work around x32 idiocy by defining proper macros */ |
574 | /* work around x32 idiocy by defining proper macros */ |
572 | #if __amd64 || __x86_64 || _M_AMD64 || _M_X64 |
575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
573 | #if _ILP32 |
576 | #if _ILP32 |
574 | #define ECB_AMD64_X32 1 |
577 | #define ECB_AMD64_X32 1 |
575 | #else |
578 | #else |
576 | #define ECB_AMD64 1 |
579 | #define ECB_AMD64 1 |
577 | #endif |
580 | #endif |
… | |
… | |
582 | * causing enormous grief in return for some better fake benchmark numbers. |
585 | * causing enormous grief in return for some better fake benchmark numbers. |
583 | * or so. |
586 | * or so. |
584 | * 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 |
585 | * 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. |
586 | */ |
589 | */ |
587 | #ifndef ECB_GCC_VERSION |
|
|
588 | #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__ |
589 | #define ECB_GCC_VERSION(major,minor) 0 |
591 | #define ECB_GCC_VERSION(major,minor) 0 |
590 | #else |
592 | #else |
591 | #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))) |
592 | #endif |
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
593 | #endif |
608 | #endif |
594 | |
609 | |
595 | #define ECB_CPP (__cplusplus+0) |
610 | #define ECB_CPP (__cplusplus+0) |
596 | #define ECB_CPP11 (__cplusplus >= 201103L) |
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
597 | |
612 | |
… | |
… | |
625 | #define ECB_NO_SMP 1 |
640 | #define ECB_NO_SMP 1 |
626 | #endif |
641 | #endif |
627 | |
642 | |
628 | #if ECB_NO_SMP |
643 | #if ECB_NO_SMP |
629 | #define ECB_MEMORY_FENCE do { } while (0) |
644 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #if 1400 <= _MSC_VER |
|
|
653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
630 | #endif |
654 | #endif |
631 | |
655 | |
632 | #ifndef ECB_MEMORY_FENCE |
656 | #ifndef ECB_MEMORY_FENCE |
633 | #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 |
634 | #if __i386 || __i386__ |
658 | #if __i386 || __i386__ |
635 | #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") |
636 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
637 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
638 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
662 | #elif ECB_GCC_AMD64 |
639 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
640 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
641 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
642 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
668 | #elif defined __ARM_ARCH_2__ \ |
|
|
669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
673 | || defined __ARM_ARCH_5TEJ__ |
|
|
674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
644 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
645 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
677 | || defined __ARM_ARCH_6T2__ |
646 | #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") |
647 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
648 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
649 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
650 | #elif __aarch64__ |
682 | #elif __aarch64__ |
651 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
652 | #elif (__sparc || __sparc__) && !__sparcv8 |
684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
653 | #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") |
654 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
655 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
656 | #elif defined __s390__ || defined __s390x__ |
688 | #elif defined __s390__ || defined __s390x__ |
657 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
… | |
… | |
681 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
682 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
683 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
684 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
685 | |
717 | |
686 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
687 | * without risking compile time errors with other compilers. We *could* |
|
|
688 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
689 | * around this shit time and again. |
|
|
690 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
691 | * // see comment below (stdatomic.h) about the C11 memory model. |
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
692 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
693 | * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
694 | * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
695 | */ |
|
|
696 | |
723 | |
697 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
698 | #define ECB_MEMORY_FENCE __sync_synchronize () |
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
699 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
700 | /* 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... */ |
… | |
… | |
763 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
764 | #endif |
791 | #endif |
765 | |
792 | |
766 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
767 | |
794 | |
768 | #if __cplusplus |
795 | #if ECB_CPP |
769 | #define ecb_inline static inline |
796 | #define ecb_inline static inline |
770 | #elif ECB_GCC_VERSION(2,5) |
797 | #elif ECB_GCC_VERSION(2,5) |
771 | #define ecb_inline static __inline__ |
798 | #define ecb_inline static __inline__ |
772 | #elif ECB_C99 |
799 | #elif ECB_C99 |
773 | #define ecb_inline static inline |
800 | #define ecb_inline static inline |
… | |
… | |
787 | |
814 | |
788 | #define ECB_CONCAT_(a, b) a ## b |
815 | #define ECB_CONCAT_(a, b) a ## b |
789 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
790 | #define ECB_STRINGIFY_(a) # a |
817 | #define ECB_STRINGIFY_(a) # a |
791 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
792 | |
820 | |
793 | #define ecb_function_ ecb_inline |
821 | #define ecb_function_ ecb_inline |
794 | |
822 | |
795 | #if ECB_GCC_VERSION(3,1) |
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
796 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
825 | #else |
|
|
826 | #define ecb_attribute(attrlist) |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
797 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
798 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
799 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
800 | #else |
831 | #else |
801 | #define ecb_attribute(attrlist) |
|
|
802 | |
|
|
803 | /* possible C11 impl for integral types |
832 | /* possible C11 impl for integral types |
804 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
805 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
806 | |
835 | |
807 | #define ecb_is_constant(expr) 0 |
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
841 | #else |
808 | #define ecb_expect(expr,value) (expr) |
842 | #define ecb_expect(expr,value) (expr) |
|
|
843 | #endif |
|
|
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
847 | #else |
809 | #define ecb_prefetch(addr,rw,locality) |
848 | #define ecb_prefetch(addr,rw,locality) |
810 | #endif |
849 | #endif |
811 | |
850 | |
812 | /* no emulation for ecb_decltype */ |
851 | /* no emulation for ecb_decltype */ |
813 | #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; }; |
814 | #define ecb_decltype(x) __decltype(x) |
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
815 | #elif ECB_GCC_VERSION(3,0) |
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
816 | #define ecb_decltype(x) __typeof(x) |
857 | #define ecb_decltype(x) __typeof__ (x) |
817 | #endif |
858 | #endif |
818 | |
859 | |
819 | #if _MSC_VER >= 1300 |
860 | #if _MSC_VER >= 1300 |
820 | #define ecb_deprecated __declspec(deprecated) |
861 | #define ecb_deprecated __declspec (deprecated) |
821 | #else |
862 | #else |
822 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
823 | #endif |
864 | #endif |
824 | |
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 |
825 | #define ecb_noinline ecb_attribute ((__noinline__)) |
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
878 | #endif |
|
|
879 | |
826 | #define ecb_unused ecb_attribute ((__unused__)) |
880 | #define ecb_unused ecb_attribute ((__unused__)) |
827 | #define ecb_const ecb_attribute ((__const__)) |
881 | #define ecb_const ecb_attribute ((__const__)) |
828 | #define ecb_pure ecb_attribute ((__pure__)) |
882 | #define ecb_pure ecb_attribute ((__pure__)) |
829 | |
883 | |
830 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ |
884 | #if ECB_C11 || __IBMC_NORETURN |
831 | #if ECB_C11 |
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
832 | #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) |
833 | #else |
892 | #else |
834 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
835 | #endif |
894 | #endif |
836 | |
895 | |
837 | #if ECB_GCC_VERSION(4,3) |
896 | #if ECB_GCC_VERSION(4,3) |
… | |
… | |
852 | /* for compatibility to the rest of the world */ |
911 | /* for compatibility to the rest of the world */ |
853 | #define ecb_likely(expr) ecb_expect_true (expr) |
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
854 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
855 | |
914 | |
856 | /* count trailing zero bits and count # of one bits */ |
915 | /* count trailing zero bits and count # of one bits */ |
857 | #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)) |
858 | /* 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 */ |
859 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
860 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
861 | #define ecb_ctz32(x) __builtin_ctz (x) |
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
862 | #define ecb_ctz64(x) __builtin_ctzll (x) |
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
863 | #define ecb_popcount32(x) __builtin_popcount (x) |
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
864 | /* no popcountll */ |
926 | /* no popcountll */ |
865 | #else |
927 | #else |
866 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
867 | ecb_function_ int |
929 | ecb_function_ ecb_const int |
868 | ecb_ctz32 (uint32_t x) |
930 | ecb_ctz32 (uint32_t x) |
869 | { |
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 |
870 | int r = 0; |
937 | int r = 0; |
871 | |
938 | |
872 | x &= ~x + 1; /* this isolates the lowest bit */ |
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
873 | |
940 | |
874 | #if ECB_branchless_on_i386 |
941 | #if ECB_branchless_on_i386 |
… | |
… | |
884 | if (x & 0xff00ff00) r += 8; |
951 | if (x & 0xff00ff00) r += 8; |
885 | if (x & 0xffff0000) r += 16; |
952 | if (x & 0xffff0000) r += 16; |
886 | #endif |
953 | #endif |
887 | |
954 | |
888 | return r; |
955 | return r; |
|
|
956 | #endif |
889 | } |
957 | } |
890 | |
958 | |
891 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
892 | ecb_function_ int |
960 | ecb_function_ ecb_const int |
893 | ecb_ctz64 (uint64_t x) |
961 | ecb_ctz64 (uint64_t x) |
894 | { |
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 |
895 | int shift = x & 0xffffffffU ? 0 : 32; |
968 | int shift = x & 0xffffffff ? 0 : 32; |
896 | return ecb_ctz32 (x >> shift) + shift; |
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
897 | } |
971 | } |
898 | |
972 | |
899 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
900 | ecb_function_ int |
974 | ecb_function_ ecb_const int |
901 | ecb_popcount32 (uint32_t x) |
975 | ecb_popcount32 (uint32_t x) |
902 | { |
976 | { |
903 | x -= (x >> 1) & 0x55555555; |
977 | x -= (x >> 1) & 0x55555555; |
904 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
905 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
906 | x *= 0x01010101; |
980 | x *= 0x01010101; |
907 | |
981 | |
908 | return x >> 24; |
982 | return x >> 24; |
909 | } |
983 | } |
910 | |
984 | |
911 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
912 | ecb_function_ int ecb_ld32 (uint32_t x) |
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
913 | { |
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 |
914 | int r = 0; |
993 | int r = 0; |
915 | |
994 | |
916 | if (x >> 16) { x >>= 16; r += 16; } |
995 | if (x >> 16) { x >>= 16; r += 16; } |
917 | if (x >> 8) { x >>= 8; r += 8; } |
996 | if (x >> 8) { x >>= 8; r += 8; } |
918 | if (x >> 4) { x >>= 4; r += 4; } |
997 | if (x >> 4) { x >>= 4; r += 4; } |
919 | if (x >> 2) { x >>= 2; r += 2; } |
998 | if (x >> 2) { x >>= 2; r += 2; } |
920 | if (x >> 1) { r += 1; } |
999 | if (x >> 1) { r += 1; } |
921 | |
1000 | |
922 | return r; |
1001 | return r; |
|
|
1002 | #endif |
923 | } |
1003 | } |
924 | |
1004 | |
925 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
926 | ecb_function_ int ecb_ld64 (uint64_t x) |
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
927 | { |
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 |
928 | int r = 0; |
1013 | int r = 0; |
929 | |
1014 | |
930 | if (x >> 32) { x >>= 32; r += 32; } |
1015 | if (x >> 32) { x >>= 32; r += 32; } |
931 | |
1016 | |
932 | return r + ecb_ld32 (x); |
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
933 | } |
1019 | } |
934 | #endif |
1020 | #endif |
935 | |
1021 | |
936 | 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); |
937 | 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)); } |
938 | 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); |
939 | 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)); } |
940 | |
1026 | |
941 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
942 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
943 | { |
1029 | { |
944 | return ( (x * 0x0802U & 0x22110U) |
1030 | return ( (x * 0x0802U & 0x22110U) |
945 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
946 | } |
1032 | } |
947 | |
1033 | |
948 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
949 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
950 | { |
1036 | { |
951 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
952 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
953 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
954 | x = ( x >> 8 ) | ( x << 8); |
1040 | x = ( x >> 8 ) | ( x << 8); |
955 | |
1041 | |
956 | return x; |
1042 | return x; |
957 | } |
1043 | } |
958 | |
1044 | |
959 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
960 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
961 | { |
1047 | { |
962 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
963 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
964 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
965 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
… | |
… | |
968 | return x; |
1054 | return x; |
969 | } |
1055 | } |
970 | |
1056 | |
971 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
972 | /* so for this version we are lazy */ |
1058 | /* so for this version we are lazy */ |
973 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
974 | ecb_function_ int |
1060 | ecb_function_ ecb_const int |
975 | ecb_popcount64 (uint64_t x) |
1061 | ecb_popcount64 (uint64_t x) |
976 | { |
1062 | { |
977 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
978 | } |
1064 | } |
979 | |
1065 | |
980 | 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); |
981 | 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); |
982 | 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); |
983 | 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); |
984 | 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); |
985 | 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); |
986 | 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); |
987 | 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); |
988 | |
1074 | |
989 | 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); } |
990 | 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); } |
991 | 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); } |
992 | 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); } |
993 | 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); } |
994 | 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); } |
995 | 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); } |
996 | 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); } |
997 | |
1083 | |
998 | #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 |
999 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
1000 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
1001 | #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))) |
1002 | #else |
1097 | #else |
1003 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
1004 | ecb_function_ uint16_t |
1099 | ecb_function_ ecb_const uint16_t |
1005 | ecb_bswap16 (uint16_t x) |
1100 | ecb_bswap16 (uint16_t x) |
1006 | { |
1101 | { |
1007 | return ecb_rotl16 (x, 8); |
1102 | return ecb_rotl16 (x, 8); |
1008 | } |
1103 | } |
1009 | |
1104 | |
1010 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
1011 | ecb_function_ uint32_t |
1106 | ecb_function_ ecb_const uint32_t |
1012 | ecb_bswap32 (uint32_t x) |
1107 | ecb_bswap32 (uint32_t x) |
1013 | { |
1108 | { |
1014 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
1015 | } |
1110 | } |
1016 | |
1111 | |
1017 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
1018 | ecb_function_ uint64_t |
1113 | ecb_function_ ecb_const uint64_t |
1019 | ecb_bswap64 (uint64_t x) |
1114 | ecb_bswap64 (uint64_t x) |
1020 | { |
1115 | { |
1021 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
1022 | } |
1117 | } |
1023 | #endif |
1118 | #endif |
1024 | |
1119 | |
1025 | #if ECB_GCC_VERSION(4,5) |
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
1026 | #define ecb_unreachable() __builtin_unreachable () |
1121 | #define ecb_unreachable() __builtin_unreachable () |
1027 | #else |
1122 | #else |
1028 | /* 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 :/ */ |
1029 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
1030 | ecb_inline void ecb_unreachable (void) { } |
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
1031 | #endif |
1126 | #endif |
1032 | |
1127 | |
1033 | /* try to tell the compiler that some condition is definitely true */ |
1128 | /* try to tell the compiler that some condition is definitely true */ |
1034 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
1035 | |
1130 | |
1036 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
1037 | ecb_inline unsigned char |
1132 | ecb_inline ecb_const uint32_t |
1038 | ecb_byteorder_helper (void) |
1133 | ecb_byteorder_helper (void) |
1039 | { |
1134 | { |
1040 | /* the union code still generates code under pressure in gcc, */ |
1135 | /* the union code still generates code under pressure in gcc, */ |
1041 | /* but less than using pointers, and always seems to */ |
1136 | /* but less than using pointers, and always seems to */ |
1042 | /* successfully return a constant. */ |
1137 | /* successfully return a constant. */ |
1043 | /* the reason why we have this horrible preprocessor mess */ |
1138 | /* the reason why we have this horrible preprocessor mess */ |
1044 | /* 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 */ |
1045 | /* or when using a recent enough gcc version (>= 4.6) */ |
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
1046 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
1047 | return 0x44; |
|
|
1048 | #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 |
1049 | return 0x44; |
1144 | return 0x44332211; |
1050 | #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 |
1051 | return 0x11; |
1148 | return 0x11223344; |
1052 | #else |
1149 | #else |
1053 | union |
1150 | union |
1054 | { |
1151 | { |
|
|
1152 | uint8_t c[4]; |
1055 | uint32_t i; |
1153 | uint32_t u; |
1056 | uint8_t c; |
|
|
1057 | } u = { 0x11223344 }; |
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
1058 | return u.c; |
1155 | return u.u; |
1059 | #endif |
1156 | #endif |
1060 | } |
1157 | } |
1061 | |
1158 | |
1062 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
1063 | 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; } |
1064 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
1065 | 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; } |
1066 | |
1163 | |
1067 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
1068 | #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)) |
1069 | #else |
1166 | #else |
1070 | #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))) |
1071 | #endif |
1168 | #endif |
1072 | |
1169 | |
1073 | #if __cplusplus |
1170 | #if ECB_CPP |
1074 | template<typename T> |
1171 | template<typename T> |
1075 | static inline T ecb_div_rd (T val, T div) |
1172 | static inline T ecb_div_rd (T val, T div) |
1076 | { |
1173 | { |
1077 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
1078 | } |
1175 | } |
… | |
… | |
1095 | } |
1192 | } |
1096 | #else |
1193 | #else |
1097 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1098 | #endif |
1195 | #endif |
1099 | |
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 | |
1100 | /*******************************************************************************/ |
1293 | /*******************************************************************************/ |
1101 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
1102 | |
1295 | |
1103 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
1104 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
1105 | #if 0 \ |
1298 | #if 0 \ |
1106 | || __i386 || __i386__ \ |
1299 | || __i386 || __i386__ \ |
1107 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
1300 | || ECB_GCC_AMD64 \ |
1108 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
1109 | || defined __s390__ || defined __s390x__ \ |
1302 | || defined __s390__ || defined __s390x__ \ |
1110 | || defined __mips__ \ |
1303 | || defined __mips__ \ |
1111 | || defined __alpha__ \ |
1304 | || defined __alpha__ \ |
1112 | || defined __hppa__ \ |
1305 | || defined __hppa__ \ |
1113 | || defined __ia64__ \ |
1306 | || defined __ia64__ \ |
1114 | || defined __m68k__ \ |
1307 | || defined __m68k__ \ |
1115 | || defined __m88k__ \ |
1308 | || defined __m88k__ \ |
1116 | || defined __sh__ \ |
1309 | || defined __sh__ \ |
1117 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ |
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
1118 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
1119 | || defined __aarch64__ |
1312 | || defined __aarch64__ |
1120 | #define ECB_STDFP 1 |
1313 | #define ECB_STDFP 1 |
1121 | #include <string.h> /* for memcpy */ |
1314 | #include <string.h> /* for memcpy */ |
1122 | #else |
1315 | #else |
… | |
… | |
1138 | #define ECB_NAN NAN |
1331 | #define ECB_NAN NAN |
1139 | #else |
1332 | #else |
1140 | #define ECB_NAN ECB_INFINITY |
1333 | #define ECB_NAN ECB_INFINITY |
1141 | #endif |
1334 | #endif |
1142 | |
1335 | |
1143 | /* converts an ieee half/binary16 to a float */ |
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
1144 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
1145 | ecb_function_ float |
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
1146 | ecb_binary16_to_float (uint16_t x) |
1339 | #else |
1147 | { |
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
1148 | int e = (x >> 10) & 0x1f; |
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
1149 | int m = x & 0x3ff; |
1342 | #endif |
1150 | float r; |
|
|
1151 | |
|
|
1152 | if (!e ) r = ldexpf (m , -24); |
|
|
1153 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1154 | else if (m ) r = ECB_NAN; |
|
|
1155 | else r = ECB_INFINITY; |
|
|
1156 | |
|
|
1157 | return x & 0x8000 ? -r : r; |
|
|
1158 | } |
|
|
1159 | |
1343 | |
1160 | /* convert a float to ieee single/binary32 */ |
1344 | /* convert a float to ieee single/binary32 */ |
1161 | 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); |
1162 | ecb_function_ uint32_t |
1346 | ecb_function_ ecb_const uint32_t |
1163 | ecb_float_to_binary32 (float x) |
1347 | ecb_float_to_binary32 (float x) |
1164 | { |
1348 | { |
1165 | uint32_t r; |
1349 | uint32_t r; |
1166 | |
1350 | |
1167 | #if ECB_STDFP |
1351 | #if ECB_STDFP |
… | |
… | |
1174 | if (x == 0e0f ) return 0x00000000U; |
1358 | if (x == 0e0f ) return 0x00000000U; |
1175 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
1176 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
1177 | if (x != x ) return 0x7fbfffffU; |
1361 | if (x != x ) return 0x7fbfffffU; |
1178 | |
1362 | |
1179 | m = frexpf (x, &e) * 0x1000000U; |
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
1180 | |
1364 | |
1181 | r = m & 0x80000000U; |
1365 | r = m & 0x80000000U; |
1182 | |
1366 | |
1183 | if (r) |
1367 | if (r) |
1184 | m = -m; |
1368 | m = -m; |
… | |
… | |
1196 | |
1380 | |
1197 | return r; |
1381 | return r; |
1198 | } |
1382 | } |
1199 | |
1383 | |
1200 | /* converts an ieee single/binary32 to a float */ |
1384 | /* converts an ieee single/binary32 to a float */ |
1201 | 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); |
1202 | ecb_function_ float |
1386 | ecb_function_ ecb_const float |
1203 | ecb_binary32_to_float (uint32_t x) |
1387 | ecb_binary32_to_float (uint32_t x) |
1204 | { |
1388 | { |
1205 | float r; |
1389 | float r; |
1206 | |
1390 | |
1207 | #if ECB_STDFP |
1391 | #if ECB_STDFP |
… | |
… | |
1217 | x |= 0x800000U; |
1401 | x |= 0x800000U; |
1218 | else |
1402 | else |
1219 | e = 1; |
1403 | e = 1; |
1220 | |
1404 | |
1221 | /* 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 */ |
1222 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
1223 | |
1407 | |
1224 | r = neg ? -r : r; |
1408 | r = neg ? -r : r; |
1225 | #endif |
1409 | #endif |
1226 | |
1410 | |
1227 | return r; |
1411 | return r; |
1228 | } |
1412 | } |
1229 | |
1413 | |
1230 | /* convert a double to ieee double/binary64 */ |
1414 | /* convert a double to ieee double/binary64 */ |
1231 | 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); |
1232 | ecb_function_ uint64_t |
1416 | ecb_function_ ecb_const uint64_t |
1233 | ecb_double_to_binary64 (double x) |
1417 | ecb_double_to_binary64 (double x) |
1234 | { |
1418 | { |
1235 | uint64_t r; |
1419 | uint64_t r; |
1236 | |
1420 | |
1237 | #if ECB_STDFP |
1421 | #if ECB_STDFP |
… | |
… | |
1266 | |
1450 | |
1267 | return r; |
1451 | return r; |
1268 | } |
1452 | } |
1269 | |
1453 | |
1270 | /* converts an ieee double/binary64 to a double */ |
1454 | /* converts an ieee double/binary64 to a double */ |
1271 | 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); |
1272 | ecb_function_ double |
1456 | ecb_function_ ecb_const double |
1273 | ecb_binary64_to_double (uint64_t x) |
1457 | ecb_binary64_to_double (uint64_t x) |
1274 | { |
1458 | { |
1275 | double r; |
1459 | double r; |
1276 | |
1460 | |
1277 | #if ECB_STDFP |
1461 | #if ECB_STDFP |
… | |
… | |
1293 | |
1477 | |
1294 | r = neg ? -r : r; |
1478 | r = neg ? -r : r; |
1295 | #endif |
1479 | #endif |
1296 | |
1480 | |
1297 | 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)); |
1298 | } |
1498 | } |
1299 | |
1499 | |
1300 | #endif |
1500 | #endif |
1301 | |
1501 | |
1302 | #endif |
1502 | #endif |
… | |
… | |
2613 | { |
2813 | { |
2614 | invoke_cb = invoke_pending_cb; |
2814 | invoke_cb = invoke_pending_cb; |
2615 | } |
2815 | } |
2616 | |
2816 | |
2617 | void |
2817 | void |
2618 | ev_set_loop_release_cb (EV_P_ ev_loop_callback release EV_THROW, ev_loop_callback acquire EV_THROW) EV_THROW |
2818 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2619 | { |
2819 | { |
2620 | release_cb = release; |
2820 | release_cb = release; |
2621 | acquire_cb = acquire; |
2821 | acquire_cb = acquire; |
2622 | } |
2822 | } |
2623 | #endif |
2823 | #endif |
… | |
… | |
2849 | #if EV_USE_INOTIFY |
3049 | #if EV_USE_INOTIFY |
2850 | infy_fork (EV_A); |
3050 | infy_fork (EV_A); |
2851 | #endif |
3051 | #endif |
2852 | |
3052 | |
2853 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
3053 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2854 | if (ev_is_active (&pipe_w)) |
3054 | if (ev_is_active (&pipe_w) && postfork != 2) |
2855 | { |
3055 | { |
2856 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
3056 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2857 | |
3057 | |
2858 | ev_ref (EV_A); |
3058 | ev_ref (EV_A); |
2859 | ev_io_stop (EV_A_ &pipe_w); |
3059 | ev_io_stop (EV_A_ &pipe_w); |