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Comparing libev/ev.c (file contents):
Revision 1.469 by root, Fri Sep 5 16:21:19 2014 UTC vs.
Revision 1.478 by root, Sun Oct 11 13:38:44 2015 UTC

… …
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
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
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
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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 (©) 2009-2014 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:
… …
523 532
524#ifndef ECB_H 533#ifndef ECB_H
525#define ECB_H 534#define ECB_H
526 535
527/* 16 bits major, 16 bits minor */ 536/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003 537#define ECB_VERSION 0x00010004
529 538
530#ifdef _WIN32 539#ifdef _WIN32
531 typedef signed char int8_t; 540 typedef signed char int8_t;
532 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
533 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
557 #else 566 #else
558 #define ECB_PTRSIZE 4 567 #define ECB_PTRSIZE 4
559 #endif 568 #endif
560#endif 569#endif
561 570
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573
562/* work around x32 idiocy by defining proper macros */ 574/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564 #if _ILP32 576 #if _ILP32
565 #define ECB_AMD64_X32 1 577 #define ECB_AMD64_X32 1
566 #else 578 #else
567 #define ECB_AMD64 1 579 #define ECB_AMD64 1
568 #endif 580 #endif
… …
573 * causing enormous grief in return for some better fake benchmark numbers. 585 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so. 586 * or so.
575 * 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
576 * 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.
577 */ 589 */
578#ifndef ECB_GCC_VERSION
579 #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__
580 #define ECB_GCC_VERSION(major,minor) 0 591 #define ECB_GCC_VERSION(major,minor) 0
581 #else 592#else
582 #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)))
583 #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
584#endif 608#endif
585 609
586#define ECB_CPP (__cplusplus+0) 610#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L) 611#define ECB_CPP11 (__cplusplus >= 201103L)
588 612
… …
618 642
619#if ECB_NO_SMP 643#if ECB_NO_SMP
620 #define ECB_MEMORY_FENCE do { } while (0) 644 #define ECB_MEMORY_FENCE do { } while (0)
621#endif 645#endif
622 646
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
623#ifndef ECB_MEMORY_FENCE 652#ifndef ECB_MEMORY_FENCE
624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 653 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
625 #if __i386 || __i386__ 654 #if __i386 || __i386__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 656 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 658 #elif ECB_GCC_AMD64
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 662 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
… …
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 667 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 668 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__ 670 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 671 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8 672 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 673 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 674 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 675 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__ 676 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 677 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
672 /* see comment below (stdatomic.h) about the C11 memory model. */ 701 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 702 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 703 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 704 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
676 705
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 706 #elif ECB_CLANG_EXTENSION(c_atomic)
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model. 707 /* see comment below (stdatomic.h) about the C11 memory model. */
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 708 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 709 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 710 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */
687 711
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 712 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize () 713 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 714 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 715 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 778 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif 779#endif
756 780
757/*****************************************************************************/ 781/*****************************************************************************/
758 782
759#if __cplusplus 783#if ECB_CPP
760 #define ecb_inline static inline 784 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5) 785#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__ 786 #define ecb_inline static __inline__
763#elif ECB_C99 787#elif ECB_C99
764 #define ecb_inline static inline 788 #define ecb_inline static inline
… …
778 802
779#define ECB_CONCAT_(a, b) a ## b 803#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 804#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a 805#define ECB_STRINGIFY_(a) # a
782#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 806#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
807#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
783 808
784#define ecb_function_ ecb_inline 809#define ecb_function_ ecb_inline
785 810
786#if ECB_GCC_VERSION(3,1) 811#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787 #define ecb_attribute(attrlist) __attribute__(attrlist) 812 #define ecb_attribute(attrlist) __attribute__ (attrlist)
788 #define ecb_is_constant(expr) __builtin_constant_p (expr)
789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791#else 813#else
792 #define ecb_attribute(attrlist) 814 #define ecb_attribute(attrlist)
815#endif
793 816
817#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
818 #define ecb_is_constant(expr) __builtin_constant_p (expr)
819#else
794 /* possible C11 impl for integral types 820 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 821 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 822 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797 823
798 #define ecb_is_constant(expr) 0 824 #define ecb_is_constant(expr) 0
825#endif
826
827#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
828 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
829#else
799 #define ecb_expect(expr,value) (expr) 830 #define ecb_expect(expr,value) (expr)
831#endif
832
833#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
834 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
835#else
800 #define ecb_prefetch(addr,rw,locality) 836 #define ecb_prefetch(addr,rw,locality)
801#endif 837#endif
802 838
803/* no emulation for ecb_decltype */ 839/* no emulation for ecb_decltype */
804#if ECB_GCC_VERSION(4,5) 840#if ECB_CPP11
841 // older implementations might have problems with decltype(x)::type, work around it
842 template<class T> struct ecb_decltype_t { typedef T type; };
805 #define ecb_decltype(x) __decltype(x) 843 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806#elif ECB_GCC_VERSION(3,0) 844#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807 #define ecb_decltype(x) __typeof(x) 845 #define ecb_decltype(x) __typeof__ (x)
808#endif 846#endif
809 847
810#if _MSC_VER >= 1300 848#if _MSC_VER >= 1300
811 #define ecb_deprecated __declspec(deprecated) 849 #define ecb_deprecated __declspec (deprecated)
812#else 850#else
813 #define ecb_deprecated ecb_attribute ((__deprecated__)) 851 #define ecb_deprecated ecb_attribute ((__deprecated__))
814#endif 852#endif
815 853
854#if _MSC_VER >= 1500
855 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
856#elif ECB_GCC_VERSION(4,5)
857 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
858#else
859 #define ecb_deprecated_message(msg) ecb_deprecated
860#endif
861
862#if _MSC_VER >= 1400
863 #define ecb_noinline __declspec (noinline)
864#else
816#define ecb_noinline ecb_attribute ((__noinline__)) 865 #define ecb_noinline ecb_attribute ((__noinline__))
866#endif
867
817#define ecb_unused ecb_attribute ((__unused__)) 868#define ecb_unused ecb_attribute ((__unused__))
818#define ecb_const ecb_attribute ((__const__)) 869#define ecb_const ecb_attribute ((__const__))
819#define ecb_pure ecb_attribute ((__pure__)) 870#define ecb_pure ecb_attribute ((__pure__))
820 871
821/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ 872#if ECB_C11 || __IBMC_NORETURN
822#if ECB_C11 873 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
823 #define ecb_noreturn _Noreturn 874 #define ecb_noreturn _Noreturn
875#elif ECB_CPP11
876 #define ecb_noreturn [[noreturn]]
877#elif _MSC_VER >= 1200
878 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
879 #define ecb_noreturn __declspec (noreturn)
824#else 880#else
825 #define ecb_noreturn ecb_attribute ((__noreturn__)) 881 #define ecb_noreturn ecb_attribute ((__noreturn__))
826#endif 882#endif
827 883
828#if ECB_GCC_VERSION(4,3) 884#if ECB_GCC_VERSION(4,3)
… …
843/* for compatibility to the rest of the world */ 899/* for compatibility to the rest of the world */
844#define ecb_likely(expr) ecb_expect_true (expr) 900#define ecb_likely(expr) ecb_expect_true (expr)
845#define ecb_unlikely(expr) ecb_expect_false (expr) 901#define ecb_unlikely(expr) ecb_expect_false (expr)
846 902
847/* count trailing zero bits and count # of one bits */ 903/* count trailing zero bits and count # of one bits */
848#if ECB_GCC_VERSION(3,4) 904#if ECB_GCC_VERSION(3,4) \
905 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
906 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
907 && ECB_CLANG_BUILTIN(__builtin_popcount))
849 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 908 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
850 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 909 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
851 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 910 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
852 #define ecb_ctz32(x) __builtin_ctz (x) 911 #define ecb_ctz32(x) __builtin_ctz (x)
853 #define ecb_ctz64(x) __builtin_ctzll (x) 912 #define ecb_ctz64(x) __builtin_ctzll (x)
854 #define ecb_popcount32(x) __builtin_popcount (x) 913 #define ecb_popcount32(x) __builtin_popcount (x)
855 /* no popcountll */ 914 /* no popcountll */
856#else 915#else
857 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 916 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
858 ecb_function_ int 917 ecb_function_ ecb_const int
859 ecb_ctz32 (uint32_t x) 918 ecb_ctz32 (uint32_t x)
860 { 919 {
861 int r = 0; 920 int r = 0;
862 921
863 x &= ~x + 1; /* this isolates the lowest bit */ 922 x &= ~x + 1; /* this isolates the lowest bit */
… …
877#endif 936#endif
878 937
879 return r; 938 return r;
880 } 939 }
881 940
882 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 941 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
883 ecb_function_ int 942 ecb_function_ ecb_const int
884 ecb_ctz64 (uint64_t x) 943 ecb_ctz64 (uint64_t x)
885 { 944 {
886 int shift = x & 0xffffffffU ? 0 : 32; 945 int shift = x & 0xffffffffU ? 0 : 32;
887 return ecb_ctz32 (x >> shift) + shift; 946 return ecb_ctz32 (x >> shift) + shift;
888 } 947 }
889 948
890 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 949 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
891 ecb_function_ int 950 ecb_function_ ecb_const int
892 ecb_popcount32 (uint32_t x) 951 ecb_popcount32 (uint32_t x)
893 { 952 {
894 x -= (x >> 1) & 0x55555555; 953 x -= (x >> 1) & 0x55555555;
895 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 954 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
896 x = ((x >> 4) + x) & 0x0f0f0f0f; 955 x = ((x >> 4) + x) & 0x0f0f0f0f;
897 x *= 0x01010101; 956 x *= 0x01010101;
898 957
899 return x >> 24; 958 return x >> 24;
900 } 959 }
901 960
902 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
903 ecb_function_ int ecb_ld32 (uint32_t x) 962 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
904 { 963 {
905 int r = 0; 964 int r = 0;
906 965
907 if (x >> 16) { x >>= 16; r += 16; } 966 if (x >> 16) { x >>= 16; r += 16; }
908 if (x >> 8) { x >>= 8; r += 8; } 967 if (x >> 8) { x >>= 8; r += 8; }
… …
911 if (x >> 1) { r += 1; } 970 if (x >> 1) { r += 1; }
912 971
913 return r; 972 return r;
914 } 973 }
915 974
916 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
917 ecb_function_ int ecb_ld64 (uint64_t x) 976 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
918 { 977 {
919 int r = 0; 978 int r = 0;
920 979
921 if (x >> 32) { x >>= 32; r += 32; } 980 if (x >> 32) { x >>= 32; r += 32; }
922 981
923 return r + ecb_ld32 (x); 982 return r + ecb_ld32 (x);
924 } 983 }
925#endif 984#endif
926 985
927ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 986ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
928ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 987ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
929ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 988ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
930ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 989ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
931 990
932ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 991ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
933ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 992ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
934{ 993{
935 return ( (x * 0x0802U & 0x22110U) 994 return ( (x * 0x0802U & 0x22110U)
936 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 995 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
937} 996}
938 997
939ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 998ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
940ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 999ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
941{ 1000{
942 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1001 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
943 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1002 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
944 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1003 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
945 x = ( x >> 8 ) | ( x << 8); 1004 x = ( x >> 8 ) | ( x << 8);
946 1005
947 return x; 1006 return x;
948} 1007}
949 1008
950ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1009ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
951ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1010ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
952{ 1011{
953 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1012 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
954 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1013 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
955 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1014 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
956 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1015 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
959 return x; 1018 return x;
960} 1019}
961 1020
962/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1021/* popcount64 is only available on 64 bit cpus as gcc builtin */
963/* so for this version we are lazy */ 1022/* so for this version we are lazy */
964ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1023ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
965ecb_function_ int 1024ecb_function_ ecb_const int
966ecb_popcount64 (uint64_t x) 1025ecb_popcount64 (uint64_t x)
967{ 1026{
968 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1027 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
969} 1028}
970 1029
971ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1030ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
972ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1031ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
973ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1032ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
974ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1033ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
975ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1034ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
976ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1035ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
977ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1036ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
978ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1037ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
979 1038
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1039ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1040ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1041ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1042ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1043ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1044ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1045ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1046ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
988 1047
989#if ECB_GCC_VERSION(4,3) 1048#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1049 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1050 #define ecb_bswap16(x) __builtin_bswap16 (x)
1051 #else
990 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1052 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1053 #endif
991 #define ecb_bswap32(x) __builtin_bswap32 (x) 1054 #define ecb_bswap32(x) __builtin_bswap32 (x)
992 #define ecb_bswap64(x) __builtin_bswap64 (x) 1055 #define ecb_bswap64(x) __builtin_bswap64 (x)
1056#elif _MSC_VER
1057 #include <stdlib.h>
1058 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1059 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1060 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
993#else 1061#else
994 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1062 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
995 ecb_function_ uint16_t 1063 ecb_function_ ecb_const uint16_t
996 ecb_bswap16 (uint16_t x) 1064 ecb_bswap16 (uint16_t x)
997 { 1065 {
998 return ecb_rotl16 (x, 8); 1066 return ecb_rotl16 (x, 8);
999 } 1067 }
1000 1068
1001 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1069 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1002 ecb_function_ uint32_t 1070 ecb_function_ ecb_const uint32_t
1003 ecb_bswap32 (uint32_t x) 1071 ecb_bswap32 (uint32_t x)
1004 { 1072 {
1005 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1073 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1006 } 1074 }
1007 1075
1008 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1076 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1009 ecb_function_ uint64_t 1077 ecb_function_ ecb_const uint64_t
1010 ecb_bswap64 (uint64_t x) 1078 ecb_bswap64 (uint64_t x)
1011 { 1079 {
1012 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1080 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1013 } 1081 }
1014#endif 1082#endif
1015 1083
1016#if ECB_GCC_VERSION(4,5) 1084#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1017 #define ecb_unreachable() __builtin_unreachable () 1085 #define ecb_unreachable() __builtin_unreachable ()
1018#else 1086#else
1019 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1087 /* this seems to work fine, but gcc always emits a warning for it :/ */
1020 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1088 ecb_inline ecb_noreturn void ecb_unreachable (void);
1021 ecb_inline void ecb_unreachable (void) { } 1089 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1022#endif 1090#endif
1023 1091
1024/* try to tell the compiler that some condition is definitely true */ 1092/* try to tell the compiler that some condition is definitely true */
1025#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1093#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1026 1094
1027ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1095ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
1028ecb_inline unsigned char 1096ecb_inline ecb_const unsigned char
1029ecb_byteorder_helper (void) 1097ecb_byteorder_helper (void)
1030{ 1098{
1031 /* the union code still generates code under pressure in gcc, */ 1099 /* the union code still generates code under pressure in gcc, */
1032 /* but less than using pointers, and always seems to */ 1100 /* but less than using pointers, and always seems to */
1033 /* successfully return a constant. */ 1101 /* successfully return a constant. */
1034 /* the reason why we have this horrible preprocessor mess */ 1102 /* the reason why we have this horrible preprocessor mess */
1035 /* is to avoid it in all cases, at least on common architectures */ 1103 /* is to avoid it in all cases, at least on common architectures */
1036 /* or when using a recent enough gcc version (>= 4.6) */ 1104 /* or when using a recent enough gcc version (>= 4.6) */
1037#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 1105#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1038 return 0x44; 1106 return 0x44;
1039#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1107#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1040 return 0x44; 1108 return 0x44;
1041#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1109#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1042 return 0x11; 1110 return 0x11;
… …
1048 } u = { 0x11223344 }; 1116 } u = { 0x11223344 };
1049 return u.c; 1117 return u.c;
1050#endif 1118#endif
1051} 1119}
1052 1120
1053ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1121ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1054ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1122ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1055ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1123ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1056ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1124ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1057 1125
1058#if ECB_GCC_VERSION(3,0) || ECB_C99 1126#if ECB_GCC_VERSION(3,0) || ECB_C99
1059 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1127 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1060#else 1128#else
1061 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1129 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1062#endif 1130#endif
1063 1131
1064#if __cplusplus 1132#if ECB_CPP
1065 template<typename T> 1133 template<typename T>
1066 static inline T ecb_div_rd (T val, T div) 1134 static inline T ecb_div_rd (T val, T div)
1067 { 1135 {
1068 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1136 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1069 } 1137 }
… …
1093 1161
1094/* basically, everything uses "ieee pure-endian" floating point numbers */ 1162/* basically, everything uses "ieee pure-endian" floating point numbers */
1095/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1163/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1096#if 0 \ 1164#if 0 \
1097 || __i386 || __i386__ \ 1165 || __i386 || __i386__ \
1098 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1166 || ECB_GCC_AMD64 \
1099 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1167 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1100 || defined __s390__ || defined __s390x__ \ 1168 || defined __s390__ || defined __s390x__ \
1101 || defined __mips__ \ 1169 || defined __mips__ \
1102 || defined __alpha__ \ 1170 || defined __alpha__ \
1103 || defined __hppa__ \ 1171 || defined __hppa__ \
1104 || defined __ia64__ \ 1172 || defined __ia64__ \
1105 || defined __m68k__ \ 1173 || defined __m68k__ \
1106 || defined __m88k__ \ 1174 || defined __m88k__ \
1107 || defined __sh__ \ 1175 || defined __sh__ \
1108 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1176 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1109 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1177 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1110 || defined __aarch64__ 1178 || defined __aarch64__
1111 #define ECB_STDFP 1 1179 #define ECB_STDFP 1
1112 #include <string.h> /* for memcpy */ 1180 #include <string.h> /* for memcpy */
1113#else 1181#else
… …
1129 #define ECB_NAN NAN 1197 #define ECB_NAN NAN
1130 #else 1198 #else
1131 #define ECB_NAN ECB_INFINITY 1199 #define ECB_NAN ECB_INFINITY
1132 #endif 1200 #endif
1133 1201
1202 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1203 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1204 #define ecb_frexpf(x,e) frexpf ((x), (e))
1205 #else
1206 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1207 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1208 #endif
1209
1134 /* converts an ieee half/binary16 to a float */ 1210 /* converts an ieee half/binary16 to a float */
1135 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1211 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1136 ecb_function_ float 1212 ecb_function_ ecb_const float
1137 ecb_binary16_to_float (uint16_t x) 1213 ecb_binary16_to_float (uint16_t x)
1138 { 1214 {
1139 int e = (x >> 10) & 0x1f; 1215 int e = (x >> 10) & 0x1f;
1140 int m = x & 0x3ff; 1216 int m = x & 0x3ff;
1141 float r; 1217 float r;
1142 1218
1143 if (!e ) r = ldexpf (m , -24); 1219 if (!e ) r = ecb_ldexpf (m , -24);
1144 else if (e != 31) r = ldexpf (m + 0x400, e - 25); 1220 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1145 else if (m ) r = ECB_NAN; 1221 else if (m ) r = ECB_NAN;
1146 else r = ECB_INFINITY; 1222 else r = ECB_INFINITY;
1147 1223
1148 return x & 0x8000 ? -r : r; 1224 return x & 0x8000 ? -r : r;
1149 } 1225 }
1150 1226
1151 /* convert a float to ieee single/binary32 */ 1227 /* convert a float to ieee single/binary32 */
1152 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1228 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1153 ecb_function_ uint32_t 1229 ecb_function_ ecb_const uint32_t
1154 ecb_float_to_binary32 (float x) 1230 ecb_float_to_binary32 (float x)
1155 { 1231 {
1156 uint32_t r; 1232 uint32_t r;
1157 1233
1158 #if ECB_STDFP 1234 #if ECB_STDFP
… …
1165 if (x == 0e0f ) return 0x00000000U; 1241 if (x == 0e0f ) return 0x00000000U;
1166 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1242 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1167 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1243 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1168 if (x != x ) return 0x7fbfffffU; 1244 if (x != x ) return 0x7fbfffffU;
1169 1245
1170 m = frexpf (x, &e) * 0x1000000U; 1246 m = ecb_frexpf (x, &e) * 0x1000000U;
1171 1247
1172 r = m & 0x80000000U; 1248 r = m & 0x80000000U;
1173 1249
1174 if (r) 1250 if (r)
1175 m = -m; 1251 m = -m;
… …
1187 1263
1188 return r; 1264 return r;
1189 } 1265 }
1190 1266
1191 /* converts an ieee single/binary32 to a float */ 1267 /* converts an ieee single/binary32 to a float */
1192 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1268 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1193 ecb_function_ float 1269 ecb_function_ ecb_const float
1194 ecb_binary32_to_float (uint32_t x) 1270 ecb_binary32_to_float (uint32_t x)
1195 { 1271 {
1196 float r; 1272 float r;
1197 1273
1198 #if ECB_STDFP 1274 #if ECB_STDFP
… …
1208 x |= 0x800000U; 1284 x |= 0x800000U;
1209 else 1285 else
1210 e = 1; 1286 e = 1;
1211 1287
1212 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1288 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1213 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1289 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1214 1290
1215 r = neg ? -r : r; 1291 r = neg ? -r : r;
1216 #endif 1292 #endif
1217 1293
1218 return r; 1294 return r;
1219 } 1295 }
1220 1296
1221 /* convert a double to ieee double/binary64 */ 1297 /* convert a double to ieee double/binary64 */
1222 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1298 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1223 ecb_function_ uint64_t 1299 ecb_function_ ecb_const uint64_t
1224 ecb_double_to_binary64 (double x) 1300 ecb_double_to_binary64 (double x)
1225 { 1301 {
1226 uint64_t r; 1302 uint64_t r;
1227 1303
1228 #if ECB_STDFP 1304 #if ECB_STDFP
… …
1257 1333
1258 return r; 1334 return r;
1259 } 1335 }
1260 1336
1261 /* converts an ieee double/binary64 to a double */ 1337 /* converts an ieee double/binary64 to a double */
1262 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1338 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1263 ecb_function_ double 1339 ecb_function_ ecb_const double
1264 ecb_binary64_to_double (uint64_t x) 1340 ecb_binary64_to_double (uint64_t x)
1265 { 1341 {
1266 double r; 1342 double r;
1267 1343
1268 #if ECB_STDFP 1344 #if ECB_STDFP
… …
2604{ 2680{
2605 invoke_cb = invoke_pending_cb; 2681 invoke_cb = invoke_pending_cb;
2606} 2682}
2607 2683
2608void 2684void
2609ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2685ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2610{ 2686{
2611 release_cb = release; 2687 release_cb = release;
2612 acquire_cb = acquire; 2688 acquire_cb = acquire;
2613} 2689}
2614#endif 2690#endif
… …
2840#if EV_USE_INOTIFY 2916#if EV_USE_INOTIFY
2841 infy_fork (EV_A); 2917 infy_fork (EV_A);
2842#endif 2918#endif
2843 2919
2844#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2920#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2845 if (ev_is_active (&pipe_w)) 2921 if (ev_is_active (&pipe_w) && postfork != 2)
2846 { 2922 {
2847 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2923 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2848 2924
2849 ev_ref (EV_A); 2925 ev_ref (EV_A);
2850 ev_io_stop (EV_A_ &pipe_w); 2926 ev_io_stop (EV_A_ &pipe_w);

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