… | |
… | |
504 | */ |
504 | */ |
505 | |
505 | |
506 | #ifndef ECB_H |
506 | #ifndef ECB_H |
507 | #define ECB_H |
507 | #define ECB_H |
508 | |
508 | |
|
|
509 | /* 16 bits major, 16 bits minor */ |
|
|
510 | #define ECB_VERSION 0x00010002 |
|
|
511 | |
509 | #ifdef _WIN32 |
512 | #ifdef _WIN32 |
510 | typedef signed char int8_t; |
513 | typedef signed char int8_t; |
511 | typedef unsigned char uint8_t; |
514 | typedef unsigned char uint8_t; |
512 | typedef signed short int16_t; |
515 | typedef signed short int16_t; |
513 | typedef unsigned short uint16_t; |
516 | typedef unsigned short uint16_t; |
… | |
… | |
518 | typedef unsigned long long uint64_t; |
521 | typedef unsigned long long uint64_t; |
519 | #else /* _MSC_VER || __BORLANDC__ */ |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
520 | typedef signed __int64 int64_t; |
523 | typedef signed __int64 int64_t; |
521 | typedef unsigned __int64 uint64_t; |
524 | typedef unsigned __int64 uint64_t; |
522 | #endif |
525 | #endif |
|
|
526 | #ifdef _WIN64 |
|
|
527 | #define ECB_PTRSIZE 8 |
|
|
528 | typedef uint64_t uintptr_t; |
|
|
529 | typedef int64_t intptr_t; |
|
|
530 | #else |
|
|
531 | #define ECB_PTRSIZE 4 |
|
|
532 | typedef uint32_t uintptr_t; |
|
|
533 | typedef int32_t intptr_t; |
|
|
534 | #endif |
523 | #else |
535 | #else |
524 | #include <inttypes.h> |
536 | #include <inttypes.h> |
|
|
537 | #if UINTMAX_MAX > 0xffffffffU |
|
|
538 | #define ECB_PTRSIZE 8 |
|
|
539 | #else |
|
|
540 | #define ECB_PTRSIZE 4 |
|
|
541 | #endif |
525 | #endif |
542 | #endif |
526 | |
543 | |
527 | /* many compilers define _GNUC_ to some versions but then only implement |
544 | /* many compilers define _GNUC_ to some versions but then only implement |
528 | * what their idiot authors think are the "more important" extensions, |
545 | * what their idiot authors think are the "more important" extensions, |
529 | * causing enormous grief in return for some better fake benchmark numbers. |
546 | * causing enormous grief in return for some better fake benchmark numbers. |
… | |
… | |
537 | #else |
554 | #else |
538 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
555 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
539 | #endif |
556 | #endif |
540 | #endif |
557 | #endif |
541 | |
558 | |
|
|
559 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
560 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
561 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
562 | #define ECB_CPP (__cplusplus+0) |
|
|
563 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
564 | |
|
|
565 | #if ECB_CPP |
|
|
566 | #define ECB_EXTERN_C extern "C" |
|
|
567 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
568 | #define ECB_EXTERN_C_END } |
|
|
569 | #else |
|
|
570 | #define ECB_EXTERN_C extern |
|
|
571 | #define ECB_EXTERN_C_BEG |
|
|
572 | #define ECB_EXTERN_C_END |
|
|
573 | #endif |
|
|
574 | |
542 | /*****************************************************************************/ |
575 | /*****************************************************************************/ |
543 | |
576 | |
544 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
577 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
545 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
578 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
546 | |
579 | |
547 | #if ECB_NO_THREADS |
580 | #if ECB_NO_THREADS |
548 | # define ECB_NO_SMP 1 |
581 | #define ECB_NO_SMP 1 |
549 | #endif |
582 | #endif |
550 | |
583 | |
551 | #if ECB_NO_THREADS || ECB_NO_SMP |
584 | #if ECB_NO_SMP |
552 | #define ECB_MEMORY_FENCE do { } while (0) |
585 | #define ECB_MEMORY_FENCE do { } while (0) |
553 | #endif |
586 | #endif |
554 | |
587 | |
555 | #ifndef ECB_MEMORY_FENCE |
588 | #ifndef ECB_MEMORY_FENCE |
556 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
589 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
557 | #if __i386 || __i386__ |
590 | #if __i386 || __i386__ |
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
559 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
592 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
560 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
593 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
561 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
594 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
595 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
596 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
597 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
565 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
598 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
567 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
600 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
568 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
601 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
570 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
603 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
571 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
604 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
573 | #elif __sparc || __sparc__ |
606 | #elif __sparc || __sparc__ |
574 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
575 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
608 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
576 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
577 | #elif defined __s390__ || defined __s390x__ |
610 | #elif defined __s390__ || defined __s390x__ |
578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
579 | #elif defined __mips__ |
612 | #elif defined __mips__ |
580 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
613 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
581 | #elif defined __alpha__ |
614 | #elif defined __alpha__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
616 | #elif defined __hppa__ |
|
|
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
618 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
619 | #elif defined __ia64__ |
|
|
620 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
583 | #endif |
621 | #endif |
584 | #endif |
622 | #endif |
585 | #endif |
623 | #endif |
586 | |
624 | |
587 | #ifndef ECB_MEMORY_FENCE |
625 | #ifndef ECB_MEMORY_FENCE |
|
|
626 | #if ECB_GCC_VERSION(4,7) |
|
|
627 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
628 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
629 | |
|
|
630 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
631 | * without risking compile time errors with other compilers. We *could* |
|
|
632 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
633 | * around this shit time and again. |
|
|
634 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
635 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
636 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
637 | */ |
|
|
638 | |
588 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
639 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
589 | #define ECB_MEMORY_FENCE __sync_synchronize () |
640 | #define ECB_MEMORY_FENCE __sync_synchronize () |
590 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
591 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
592 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
641 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
593 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
642 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
594 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
643 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
595 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
644 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
596 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
645 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
606 | #define ECB_MEMORY_FENCE __sync () |
655 | #define ECB_MEMORY_FENCE __sync () |
607 | #endif |
656 | #endif |
608 | #endif |
657 | #endif |
609 | |
658 | |
610 | #ifndef ECB_MEMORY_FENCE |
659 | #ifndef ECB_MEMORY_FENCE |
|
|
660 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
661 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
662 | /* not just C11 atomics and atomic accesses */ |
|
|
663 | #include <stdatomic.h> |
|
|
664 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
665 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
666 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
667 | /* for most usages, or gcc and clang have a bug */ |
|
|
668 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
669 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
670 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
671 | #endif |
|
|
672 | #endif |
|
|
673 | |
|
|
674 | #ifndef ECB_MEMORY_FENCE |
611 | #if !ECB_AVOID_PTHREADS |
675 | #if !ECB_AVOID_PTHREADS |
612 | /* |
676 | /* |
613 | * if you get undefined symbol references to pthread_mutex_lock, |
677 | * if you get undefined symbol references to pthread_mutex_lock, |
614 | * or failure to find pthread.h, then you should implement |
678 | * or failure to find pthread.h, then you should implement |
615 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
679 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
633 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
697 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
634 | #endif |
698 | #endif |
635 | |
699 | |
636 | /*****************************************************************************/ |
700 | /*****************************************************************************/ |
637 | |
701 | |
638 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
639 | |
|
|
640 | #if __cplusplus |
702 | #if __cplusplus |
641 | #define ecb_inline static inline |
703 | #define ecb_inline static inline |
642 | #elif ECB_GCC_VERSION(2,5) |
704 | #elif ECB_GCC_VERSION(2,5) |
643 | #define ecb_inline static __inline__ |
705 | #define ecb_inline static __inline__ |
644 | #elif ECB_C99 |
706 | #elif ECB_C99 |
… | |
… | |
682 | #elif ECB_GCC_VERSION(3,0) |
744 | #elif ECB_GCC_VERSION(3,0) |
683 | #define ecb_decltype(x) __typeof(x) |
745 | #define ecb_decltype(x) __typeof(x) |
684 | #endif |
746 | #endif |
685 | |
747 | |
686 | #define ecb_noinline ecb_attribute ((__noinline__)) |
748 | #define ecb_noinline ecb_attribute ((__noinline__)) |
687 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
688 | #define ecb_unused ecb_attribute ((__unused__)) |
749 | #define ecb_unused ecb_attribute ((__unused__)) |
689 | #define ecb_const ecb_attribute ((__const__)) |
750 | #define ecb_const ecb_attribute ((__const__)) |
690 | #define ecb_pure ecb_attribute ((__pure__)) |
751 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
752 | |
|
|
753 | #if ECB_C11 |
|
|
754 | #define ecb_noreturn _Noreturn |
|
|
755 | #else |
|
|
756 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
757 | #endif |
691 | |
758 | |
692 | #if ECB_GCC_VERSION(4,3) |
759 | #if ECB_GCC_VERSION(4,3) |
693 | #define ecb_artificial ecb_attribute ((__artificial__)) |
760 | #define ecb_artificial ecb_attribute ((__artificial__)) |
694 | #define ecb_hot ecb_attribute ((__hot__)) |
761 | #define ecb_hot ecb_attribute ((__hot__)) |
695 | #define ecb_cold ecb_attribute ((__cold__)) |
762 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
786 | |
853 | |
787 | return r + ecb_ld32 (x); |
854 | return r + ecb_ld32 (x); |
788 | } |
855 | } |
789 | #endif |
856 | #endif |
790 | |
857 | |
|
|
858 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
859 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
860 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
861 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
862 | |
791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
863 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
864 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
793 | { |
865 | { |
794 | return ( (x * 0x0802U & 0x22110U) |
866 | return ( (x * 0x0802U & 0x22110U) |
795 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
867 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
… | |
… | |
879 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
951 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
880 | ecb_inline void ecb_unreachable (void) { } |
952 | ecb_inline void ecb_unreachable (void) { } |
881 | #endif |
953 | #endif |
882 | |
954 | |
883 | /* try to tell the compiler that some condition is definitely true */ |
955 | /* try to tell the compiler that some condition is definitely true */ |
884 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
956 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
885 | |
957 | |
886 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
958 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
887 | ecb_inline unsigned char |
959 | ecb_inline unsigned char |
888 | ecb_byteorder_helper (void) |
960 | ecb_byteorder_helper (void) |
889 | { |
961 | { |
890 | const uint32_t u = 0x11223344; |
962 | /* the union code still generates code under pressure in gcc, */ |
891 | return *(unsigned char *)&u; |
963 | /* but less than using pointers, and always seems to */ |
|
|
964 | /* successfully return a constant. */ |
|
|
965 | /* the reason why we have this horrible preprocessor mess */ |
|
|
966 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
967 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
968 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
969 | return 0x44; |
|
|
970 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
971 | return 0x44; |
|
|
972 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
973 | return 0x11; |
|
|
974 | #else |
|
|
975 | union |
|
|
976 | { |
|
|
977 | uint32_t i; |
|
|
978 | uint8_t c; |
|
|
979 | } u = { 0x11223344 }; |
|
|
980 | return u.c; |
|
|
981 | #endif |
892 | } |
982 | } |
893 | |
983 | |
894 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
984 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
895 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
985 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
896 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
986 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
… | |
… | |
927 | } |
1017 | } |
928 | #else |
1018 | #else |
929 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1019 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
930 | #endif |
1020 | #endif |
931 | |
1021 | |
|
|
1022 | /*******************************************************************************/ |
|
|
1023 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1024 | |
|
|
1025 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1026 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1027 | #if 0 \ |
|
|
1028 | || __i386 || __i386__ \ |
|
|
1029 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1030 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1031 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1032 | || defined __s390__ || defined __s390x__ \ |
|
|
1033 | || defined __mips__ \ |
|
|
1034 | || defined __alpha__ \ |
|
|
1035 | || defined __hppa__ \ |
|
|
1036 | || defined __ia64__ \ |
|
|
1037 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1038 | #define ECB_STDFP 1 |
|
|
1039 | #include <string.h> /* for memcpy */ |
|
|
1040 | #else |
|
|
1041 | #define ECB_STDFP 0 |
|
|
1042 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | #ifndef ECB_NO_LIBM |
|
|
1046 | |
|
|
1047 | /* convert a float to ieee single/binary32 */ |
|
|
1048 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1049 | ecb_function_ uint32_t |
|
|
1050 | ecb_float_to_binary32 (float x) |
|
|
1051 | { |
|
|
1052 | uint32_t r; |
|
|
1053 | |
|
|
1054 | #if ECB_STDFP |
|
|
1055 | memcpy (&r, &x, 4); |
|
|
1056 | #else |
|
|
1057 | /* slow emulation, works for anything but -0 */ |
|
|
1058 | uint32_t m; |
|
|
1059 | int e; |
|
|
1060 | |
|
|
1061 | if (x == 0e0f ) return 0x00000000U; |
|
|
1062 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1063 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1064 | if (x != x ) return 0x7fbfffffU; |
|
|
1065 | |
|
|
1066 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1067 | |
|
|
1068 | r = m & 0x80000000U; |
|
|
1069 | |
|
|
1070 | if (r) |
|
|
1071 | m = -m; |
|
|
1072 | |
|
|
1073 | if (e <= -126) |
|
|
1074 | { |
|
|
1075 | m &= 0xffffffU; |
|
|
1076 | m >>= (-125 - e); |
|
|
1077 | e = -126; |
|
|
1078 | } |
|
|
1079 | |
|
|
1080 | r |= (e + 126) << 23; |
|
|
1081 | r |= m & 0x7fffffU; |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | return r; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | /* converts an ieee single/binary32 to a float */ |
|
|
1088 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1089 | ecb_function_ float |
|
|
1090 | ecb_binary32_to_float (uint32_t x) |
|
|
1091 | { |
|
|
1092 | float r; |
|
|
1093 | |
|
|
1094 | #if ECB_STDFP |
|
|
1095 | memcpy (&r, &x, 4); |
|
|
1096 | #else |
|
|
1097 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1098 | int neg = x >> 31; |
|
|
1099 | int e = (x >> 23) & 0xffU; |
|
|
1100 | |
|
|
1101 | x &= 0x7fffffU; |
|
|
1102 | |
|
|
1103 | if (e) |
|
|
1104 | x |= 0x800000U; |
|
|
1105 | else |
|
|
1106 | e = 1; |
|
|
1107 | |
|
|
1108 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1109 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1110 | |
|
|
1111 | r = neg ? -r : r; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | return r; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | /* convert a double to ieee double/binary64 */ |
|
|
1118 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1119 | ecb_function_ uint64_t |
|
|
1120 | ecb_double_to_binary64 (double x) |
|
|
1121 | { |
|
|
1122 | uint64_t r; |
|
|
1123 | |
|
|
1124 | #if ECB_STDFP |
|
|
1125 | memcpy (&r, &x, 8); |
|
|
1126 | #else |
|
|
1127 | /* slow emulation, works for anything but -0 */ |
|
|
1128 | uint64_t m; |
|
|
1129 | int e; |
|
|
1130 | |
|
|
1131 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1132 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1133 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1134 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1135 | |
|
|
1136 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1137 | |
|
|
1138 | r = m & 0x8000000000000000;; |
|
|
1139 | |
|
|
1140 | if (r) |
|
|
1141 | m = -m; |
|
|
1142 | |
|
|
1143 | if (e <= -1022) |
|
|
1144 | { |
|
|
1145 | m &= 0x1fffffffffffffU; |
|
|
1146 | m >>= (-1021 - e); |
|
|
1147 | e = -1022; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1151 | r |= m & 0xfffffffffffffU; |
|
|
1152 | #endif |
|
|
1153 | |
|
|
1154 | return r; |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | /* converts an ieee double/binary64 to a double */ |
|
|
1158 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1159 | ecb_function_ double |
|
|
1160 | ecb_binary64_to_double (uint64_t x) |
|
|
1161 | { |
|
|
1162 | double r; |
|
|
1163 | |
|
|
1164 | #if ECB_STDFP |
|
|
1165 | memcpy (&r, &x, 8); |
|
|
1166 | #else |
|
|
1167 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1168 | int neg = x >> 63; |
|
|
1169 | int e = (x >> 52) & 0x7ffU; |
|
|
1170 | |
|
|
1171 | x &= 0xfffffffffffffU; |
|
|
1172 | |
|
|
1173 | if (e) |
|
|
1174 | x |= 0x10000000000000U; |
|
|
1175 | else |
|
|
1176 | e = 1; |
|
|
1177 | |
|
|
1178 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1179 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1180 | |
|
|
1181 | r = neg ? -r : r; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | return r; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | #endif |
|
|
1188 | |
932 | #endif |
1189 | #endif |
933 | |
1190 | |
934 | /* ECB.H END */ |
1191 | /* ECB.H END */ |
935 | |
1192 | |
936 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1193 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
1135 | } |
1392 | } |
1136 | |
1393 | |
1137 | static void * |
1394 | static void * |
1138 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1395 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1139 | { |
1396 | { |
1140 | #if __GLIBC__ |
|
|
1141 | return realloc (ptr, size); |
|
|
1142 | #else |
|
|
1143 | /* some systems, notably openbsd and darwin, fail to properly |
1397 | /* some systems, notably openbsd and darwin, fail to properly |
1144 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1398 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1145 | * the single unix specification, so work around them here. |
1399 | * the single unix specification, so work around them here. |
|
|
1400 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1401 | * despite documenting it otherwise. |
1146 | */ |
1402 | */ |
1147 | |
1403 | |
1148 | if (size) |
1404 | if (size) |
1149 | return realloc (ptr, size); |
1405 | return realloc (ptr, size); |
1150 | |
1406 | |
1151 | free (ptr); |
1407 | free (ptr); |
1152 | return 0; |
1408 | return 0; |
1153 | #endif |
|
|
1154 | } |
1409 | } |
1155 | |
1410 | |
1156 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1411 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1157 | |
1412 | |
1158 | void ecb_cold |
1413 | void ecb_cold |
… | |
… | |
1813 | static void noinline ecb_cold |
2068 | static void noinline ecb_cold |
1814 | evpipe_init (EV_P) |
2069 | evpipe_init (EV_P) |
1815 | { |
2070 | { |
1816 | if (!ev_is_active (&pipe_w)) |
2071 | if (!ev_is_active (&pipe_w)) |
1817 | { |
2072 | { |
|
|
2073 | int fds [2]; |
|
|
2074 | |
1818 | # if EV_USE_EVENTFD |
2075 | # if EV_USE_EVENTFD |
|
|
2076 | fds [0] = -1; |
1819 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2077 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1820 | if (evfd < 0 && errno == EINVAL) |
2078 | if (fds [1] < 0 && errno == EINVAL) |
1821 | evfd = eventfd (0, 0); |
2079 | fds [1] = eventfd (0, 0); |
1822 | |
2080 | |
1823 | if (evfd >= 0) |
2081 | if (fds [1] < 0) |
1824 | { |
|
|
1825 | evpipe [0] = -1; |
|
|
1826 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1827 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1828 | } |
|
|
1829 | else |
|
|
1830 | # endif |
2082 | # endif |
1831 | { |
2083 | { |
1832 | while (pipe (evpipe)) |
2084 | while (pipe (fds)) |
1833 | ev_syserr ("(libev) error creating signal/async pipe"); |
2085 | ev_syserr ("(libev) error creating signal/async pipe"); |
1834 | |
2086 | |
1835 | fd_intern (evpipe [0]); |
2087 | fd_intern (fds [0]); |
1836 | fd_intern (evpipe [1]); |
|
|
1837 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1838 | } |
2088 | } |
1839 | |
2089 | |
|
|
2090 | fd_intern (fds [1]); |
|
|
2091 | |
|
|
2092 | evpipe [0] = fds [0]; |
|
|
2093 | |
|
|
2094 | if (evpipe [1] < 0) |
|
|
2095 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2096 | else |
|
|
2097 | { |
|
|
2098 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2099 | /* so that evpipe_write can always rely on its value. */ |
|
|
2100 | /* this branch does not do anything sensible on windows, */ |
|
|
2101 | /* so must not be executed on windows */ |
|
|
2102 | |
|
|
2103 | dup2 (fds [1], evpipe [1]); |
|
|
2104 | close (fds [1]); |
|
|
2105 | } |
|
|
2106 | |
|
|
2107 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1840 | ev_io_start (EV_A_ &pipe_w); |
2108 | ev_io_start (EV_A_ &pipe_w); |
1841 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2109 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1842 | } |
2110 | } |
1843 | } |
2111 | } |
1844 | |
2112 | |
… | |
… | |
1849 | |
2117 | |
1850 | if (expect_true (*flag)) |
2118 | if (expect_true (*flag)) |
1851 | return; |
2119 | return; |
1852 | |
2120 | |
1853 | *flag = 1; |
2121 | *flag = 1; |
1854 | |
|
|
1855 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2122 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1856 | |
2123 | |
1857 | pipe_write_skipped = 1; |
2124 | pipe_write_skipped = 1; |
1858 | |
2125 | |
1859 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2126 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1860 | |
2127 | |
1861 | if (pipe_write_wanted) |
2128 | if (pipe_write_wanted) |
1862 | { |
2129 | { |
1863 | int old_errno; |
2130 | int old_errno; |
1864 | |
2131 | |
1865 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2132 | pipe_write_skipped = 0; |
|
|
2133 | ECB_MEMORY_FENCE_RELEASE; |
1866 | |
2134 | |
1867 | old_errno = errno; /* save errno because write will clobber it */ |
2135 | old_errno = errno; /* save errno because write will clobber it */ |
1868 | |
2136 | |
1869 | #if EV_USE_EVENTFD |
2137 | #if EV_USE_EVENTFD |
1870 | if (evfd >= 0) |
2138 | if (evpipe [0] < 0) |
1871 | { |
2139 | { |
1872 | uint64_t counter = 1; |
2140 | uint64_t counter = 1; |
1873 | write (evfd, &counter, sizeof (uint64_t)); |
2141 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1874 | } |
2142 | } |
1875 | else |
2143 | else |
1876 | #endif |
2144 | #endif |
1877 | { |
2145 | { |
1878 | #ifdef _WIN32 |
2146 | #ifdef _WIN32 |
… | |
… | |
1898 | int i; |
2166 | int i; |
1899 | |
2167 | |
1900 | if (revents & EV_READ) |
2168 | if (revents & EV_READ) |
1901 | { |
2169 | { |
1902 | #if EV_USE_EVENTFD |
2170 | #if EV_USE_EVENTFD |
1903 | if (evfd >= 0) |
2171 | if (evpipe [0] < 0) |
1904 | { |
2172 | { |
1905 | uint64_t counter; |
2173 | uint64_t counter; |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
2174 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1907 | } |
2175 | } |
1908 | else |
2176 | else |
1909 | #endif |
2177 | #endif |
1910 | { |
2178 | { |
1911 | char dummy[4]; |
2179 | char dummy[4]; |
… | |
… | |
1929 | #if EV_SIGNAL_ENABLE |
2197 | #if EV_SIGNAL_ENABLE |
1930 | if (sig_pending) |
2198 | if (sig_pending) |
1931 | { |
2199 | { |
1932 | sig_pending = 0; |
2200 | sig_pending = 0; |
1933 | |
2201 | |
1934 | ECB_MEMORY_FENCE_RELEASE; |
2202 | ECB_MEMORY_FENCE; |
1935 | |
2203 | |
1936 | for (i = EV_NSIG - 1; i--; ) |
2204 | for (i = EV_NSIG - 1; i--; ) |
1937 | if (expect_false (signals [i].pending)) |
2205 | if (expect_false (signals [i].pending)) |
1938 | ev_feed_signal_event (EV_A_ i + 1); |
2206 | ev_feed_signal_event (EV_A_ i + 1); |
1939 | } |
2207 | } |
… | |
… | |
1942 | #if EV_ASYNC_ENABLE |
2210 | #if EV_ASYNC_ENABLE |
1943 | if (async_pending) |
2211 | if (async_pending) |
1944 | { |
2212 | { |
1945 | async_pending = 0; |
2213 | async_pending = 0; |
1946 | |
2214 | |
1947 | ECB_MEMORY_FENCE_RELEASE; |
2215 | ECB_MEMORY_FENCE; |
1948 | |
2216 | |
1949 | for (i = asynccnt; i--; ) |
2217 | for (i = asynccnt; i--; ) |
1950 | if (asyncs [i]->sent) |
2218 | if (asyncs [i]->sent) |
1951 | { |
2219 | { |
1952 | asyncs [i]->sent = 0; |
2220 | asyncs [i]->sent = 0; |
|
|
2221 | ECB_MEMORY_FENCE_RELEASE; |
1953 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2222 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1954 | } |
2223 | } |
1955 | } |
2224 | } |
1956 | #endif |
2225 | #endif |
1957 | } |
2226 | } |
… | |
… | |
1960 | |
2229 | |
1961 | void |
2230 | void |
1962 | ev_feed_signal (int signum) EV_THROW |
2231 | ev_feed_signal (int signum) EV_THROW |
1963 | { |
2232 | { |
1964 | #if EV_MULTIPLICITY |
2233 | #if EV_MULTIPLICITY |
|
|
2234 | ECB_MEMORY_FENCE_ACQUIRE; |
1965 | EV_P = signals [signum - 1].loop; |
2235 | EV_P = signals [signum - 1].loop; |
1966 | |
2236 | |
1967 | if (!EV_A) |
2237 | if (!EV_A) |
1968 | return; |
2238 | return; |
1969 | #endif |
2239 | #endif |
1970 | |
2240 | |
1971 | if (!ev_active (&pipe_w)) |
|
|
1972 | return; |
|
|
1973 | |
|
|
1974 | signals [signum - 1].pending = 1; |
2241 | signals [signum - 1].pending = 1; |
1975 | evpipe_write (EV_A_ &sig_pending); |
2242 | evpipe_write (EV_A_ &sig_pending); |
1976 | } |
2243 | } |
1977 | |
2244 | |
1978 | static void |
2245 | static void |
… | |
… | |
1988 | void noinline |
2255 | void noinline |
1989 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2256 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1990 | { |
2257 | { |
1991 | WL w; |
2258 | WL w; |
1992 | |
2259 | |
1993 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2260 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1994 | return; |
2261 | return; |
1995 | |
2262 | |
1996 | --signum; |
2263 | --signum; |
1997 | |
2264 | |
1998 | #if EV_MULTIPLICITY |
2265 | #if EV_MULTIPLICITY |
… | |
… | |
2002 | if (expect_false (signals [signum].loop != EV_A)) |
2269 | if (expect_false (signals [signum].loop != EV_A)) |
2003 | return; |
2270 | return; |
2004 | #endif |
2271 | #endif |
2005 | |
2272 | |
2006 | signals [signum].pending = 0; |
2273 | signals [signum].pending = 0; |
|
|
2274 | ECB_MEMORY_FENCE_RELEASE; |
2007 | |
2275 | |
2008 | for (w = signals [signum].head; w; w = w->next) |
2276 | for (w = signals [signum].head; w; w = w->next) |
2009 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2277 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2010 | } |
2278 | } |
2011 | |
2279 | |
… | |
… | |
2295 | #if EV_ASYNC_ENABLE |
2563 | #if EV_ASYNC_ENABLE |
2296 | async_pending = 0; |
2564 | async_pending = 0; |
2297 | #endif |
2565 | #endif |
2298 | pipe_write_skipped = 0; |
2566 | pipe_write_skipped = 0; |
2299 | pipe_write_wanted = 0; |
2567 | pipe_write_wanted = 0; |
|
|
2568 | evpipe [0] = -1; |
|
|
2569 | evpipe [1] = -1; |
2300 | #if EV_USE_INOTIFY |
2570 | #if EV_USE_INOTIFY |
2301 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2571 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2302 | #endif |
2572 | #endif |
2303 | #if EV_USE_SIGNALFD |
2573 | #if EV_USE_SIGNALFD |
2304 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2574 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2367 | if (ev_is_active (&pipe_w)) |
2637 | if (ev_is_active (&pipe_w)) |
2368 | { |
2638 | { |
2369 | /*ev_ref (EV_A);*/ |
2639 | /*ev_ref (EV_A);*/ |
2370 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2640 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2371 | |
2641 | |
2372 | #if EV_USE_EVENTFD |
|
|
2373 | if (evfd >= 0) |
|
|
2374 | close (evfd); |
|
|
2375 | #endif |
|
|
2376 | |
|
|
2377 | if (evpipe [0] >= 0) |
|
|
2378 | { |
|
|
2379 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2642 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2380 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2643 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2381 | } |
|
|
2382 | } |
2644 | } |
2383 | |
2645 | |
2384 | #if EV_USE_SIGNALFD |
2646 | #if EV_USE_SIGNALFD |
2385 | if (ev_is_active (&sigfd_w)) |
2647 | if (ev_is_active (&sigfd_w)) |
2386 | close (sigfd); |
2648 | close (sigfd); |
… | |
… | |
2472 | #endif |
2734 | #endif |
2473 | #if EV_USE_INOTIFY |
2735 | #if EV_USE_INOTIFY |
2474 | infy_fork (EV_A); |
2736 | infy_fork (EV_A); |
2475 | #endif |
2737 | #endif |
2476 | |
2738 | |
|
|
2739 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2477 | if (ev_is_active (&pipe_w)) |
2740 | if (ev_is_active (&pipe_w)) |
2478 | { |
2741 | { |
2479 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2742 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2480 | |
2743 | |
2481 | ev_ref (EV_A); |
2744 | ev_ref (EV_A); |
2482 | ev_io_stop (EV_A_ &pipe_w); |
2745 | ev_io_stop (EV_A_ &pipe_w); |
2483 | |
2746 | |
2484 | #if EV_USE_EVENTFD |
|
|
2485 | if (evfd >= 0) |
|
|
2486 | close (evfd); |
|
|
2487 | #endif |
|
|
2488 | |
|
|
2489 | if (evpipe [0] >= 0) |
2747 | if (evpipe [0] >= 0) |
2490 | { |
|
|
2491 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2748 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2492 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2493 | } |
|
|
2494 | |
2749 | |
2495 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2496 | evpipe_init (EV_A); |
2750 | evpipe_init (EV_A); |
2497 | /* now iterate over everything, in case we missed something */ |
2751 | /* iterate over everything, in case we missed something before */ |
2498 | pipecb (EV_A_ &pipe_w, EV_READ); |
2752 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2499 | #endif |
|
|
2500 | } |
2753 | } |
|
|
2754 | #endif |
2501 | |
2755 | |
2502 | postfork = 0; |
2756 | postfork = 0; |
2503 | } |
2757 | } |
2504 | |
2758 | |
2505 | #if EV_MULTIPLICITY |
2759 | #if EV_MULTIPLICITY |
… | |
… | |
2678 | } |
2932 | } |
2679 | |
2933 | |
2680 | void |
2934 | void |
2681 | ev_loop_fork (EV_P) EV_THROW |
2935 | ev_loop_fork (EV_P) EV_THROW |
2682 | { |
2936 | { |
2683 | postfork = 1; /* must be in line with ev_default_fork */ |
2937 | postfork = 1; |
2684 | } |
2938 | } |
2685 | |
2939 | |
2686 | /*****************************************************************************/ |
2940 | /*****************************************************************************/ |
2687 | |
2941 | |
2688 | void |
2942 | void |
… | |
… | |
2704 | } |
2958 | } |
2705 | |
2959 | |
2706 | void noinline |
2960 | void noinline |
2707 | ev_invoke_pending (EV_P) |
2961 | ev_invoke_pending (EV_P) |
2708 | { |
2962 | { |
2709 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
2963 | pendingpri = NUMPRI; |
|
|
2964 | |
|
|
2965 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2966 | { |
|
|
2967 | --pendingpri; |
|
|
2968 | |
2710 | while (pendingcnt [pendingpri]) |
2969 | while (pendingcnt [pendingpri]) |
2711 | { |
2970 | { |
2712 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2971 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2713 | |
2972 | |
2714 | p->w->pending = 0; |
2973 | p->w->pending = 0; |
2715 | EV_CB_INVOKE (p->w, p->events); |
2974 | EV_CB_INVOKE (p->w, p->events); |
2716 | EV_FREQUENT_CHECK; |
2975 | EV_FREQUENT_CHECK; |
2717 | } |
2976 | } |
|
|
2977 | } |
2718 | } |
2978 | } |
2719 | |
2979 | |
2720 | #if EV_IDLE_ENABLE |
2980 | #if EV_IDLE_ENABLE |
2721 | /* make idle watchers pending. this handles the "call-idle */ |
2981 | /* make idle watchers pending. this handles the "call-idle */ |
2722 | /* only when higher priorities are idle" logic */ |
2982 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2812 | { |
3072 | { |
2813 | EV_FREQUENT_CHECK; |
3073 | EV_FREQUENT_CHECK; |
2814 | |
3074 | |
2815 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3075 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2816 | { |
3076 | { |
2817 | int feed_count = 0; |
|
|
2818 | |
|
|
2819 | do |
3077 | do |
2820 | { |
3078 | { |
2821 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3079 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2822 | |
3080 | |
2823 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3081 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
3082 | backend_poll (EV_A_ waittime); |
3340 | backend_poll (EV_A_ waittime); |
3083 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3341 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3084 | |
3342 | |
3085 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3343 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3086 | |
3344 | |
|
|
3345 | ECB_MEMORY_FENCE_ACQUIRE; |
3087 | if (pipe_write_skipped) |
3346 | if (pipe_write_skipped) |
3088 | { |
3347 | { |
3089 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3348 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3090 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3349 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3091 | } |
3350 | } |
… | |
… | |
3469 | #if EV_MULTIPLICITY |
3728 | #if EV_MULTIPLICITY |
3470 | assert (("libev: a signal must not be attached to two different loops", |
3729 | assert (("libev: a signal must not be attached to two different loops", |
3471 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3730 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3472 | |
3731 | |
3473 | signals [w->signum - 1].loop = EV_A; |
3732 | signals [w->signum - 1].loop = EV_A; |
|
|
3733 | ECB_MEMORY_FENCE_RELEASE; |
3474 | #endif |
3734 | #endif |
3475 | |
3735 | |
3476 | EV_FREQUENT_CHECK; |
3736 | EV_FREQUENT_CHECK; |
3477 | |
3737 | |
3478 | #if EV_USE_SIGNALFD |
3738 | #if EV_USE_SIGNALFD |
… | |
… | |
3633 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3893 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3634 | |
3894 | |
3635 | static void noinline |
3895 | static void noinline |
3636 | infy_add (EV_P_ ev_stat *w) |
3896 | infy_add (EV_P_ ev_stat *w) |
3637 | { |
3897 | { |
3638 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3898 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3899 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3900 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3901 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3639 | |
3902 | |
3640 | if (w->wd >= 0) |
3903 | if (w->wd >= 0) |
3641 | { |
3904 | { |
3642 | struct statfs sfs; |
3905 | struct statfs sfs; |
3643 | |
3906 | |
… | |
… | |
3647 | |
3910 | |
3648 | if (!fs_2625) |
3911 | if (!fs_2625) |
3649 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3912 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3650 | else if (!statfs (w->path, &sfs) |
3913 | else if (!statfs (w->path, &sfs) |
3651 | && (sfs.f_type == 0x1373 /* devfs */ |
3914 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3915 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3916 | || sfs.f_type == 0x4d44 /* msdos */ |
3652 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3917 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3918 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3919 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3920 | || sfs.f_type == 0x5346544e /* ntfs */ |
3653 | || sfs.f_type == 0x3153464a /* jfs */ |
3921 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3922 | || sfs.f_type == 0x9123683e /* btrfs */ |
3654 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3923 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3655 | || sfs.f_type == 0x01021994 /* tempfs */ |
3924 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3656 | || sfs.f_type == 0x58465342 /* xfs */)) |
3925 | || sfs.f_type == 0x58465342 /* xfs */)) |
3657 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3926 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3658 | else |
3927 | else |
3659 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3928 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3660 | } |
3929 | } |