… | |
… | |
357 | |
357 | |
358 | #ifndef EV_HEAP_CACHE_AT |
358 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
360 | #endif |
360 | #endif |
361 | |
361 | |
|
|
362 | #ifdef ANDROID |
|
|
363 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
364 | # undef EV_USE_SELECT |
|
|
365 | # define EV_USE_SELECT 0 |
|
|
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
367 | # undef EV_USE_CLOCK_SYSCALL |
|
|
368 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
369 | #endif |
|
|
370 | |
|
|
371 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
372 | #ifdef _AIX |
|
|
373 | /* AIX has a completely broken poll.h header */ |
|
|
374 | # undef EV_USE_POLL |
|
|
375 | # define EV_USE_POLL 0 |
|
|
376 | #endif |
|
|
377 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
379 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
380 | #if EV_USE_CLOCK_SYSCALL |
365 | # include <sys/syscall.h> |
381 | # include <sys/syscall.h> |
366 | # ifdef SYS_clock_gettime |
382 | # ifdef SYS_clock_gettime |
… | |
… | |
372 | # define EV_USE_CLOCK_SYSCALL 0 |
388 | # define EV_USE_CLOCK_SYSCALL 0 |
373 | # endif |
389 | # endif |
374 | #endif |
390 | #endif |
375 | |
391 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
392 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
393 | |
384 | #ifndef CLOCK_MONOTONIC |
394 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
395 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
396 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
397 | #endif |
… | |
… | |
504 | */ |
514 | */ |
505 | |
515 | |
506 | #ifndef ECB_H |
516 | #ifndef ECB_H |
507 | #define ECB_H |
517 | #define ECB_H |
508 | |
518 | |
|
|
519 | /* 16 bits major, 16 bits minor */ |
|
|
520 | #define ECB_VERSION 0x00010002 |
|
|
521 | |
509 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
510 | typedef signed char int8_t; |
523 | typedef signed char int8_t; |
511 | typedef unsigned char uint8_t; |
524 | typedef unsigned char uint8_t; |
512 | typedef signed short int16_t; |
525 | typedef signed short int16_t; |
513 | typedef unsigned short uint16_t; |
526 | typedef unsigned short uint16_t; |
… | |
… | |
518 | typedef unsigned long long uint64_t; |
531 | typedef unsigned long long uint64_t; |
519 | #else /* _MSC_VER || __BORLANDC__ */ |
532 | #else /* _MSC_VER || __BORLANDC__ */ |
520 | typedef signed __int64 int64_t; |
533 | typedef signed __int64 int64_t; |
521 | typedef unsigned __int64 uint64_t; |
534 | typedef unsigned __int64 uint64_t; |
522 | #endif |
535 | #endif |
|
|
536 | #ifdef _WIN64 |
|
|
537 | #define ECB_PTRSIZE 8 |
|
|
538 | typedef uint64_t uintptr_t; |
|
|
539 | typedef int64_t intptr_t; |
|
|
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | typedef uint32_t uintptr_t; |
|
|
543 | typedef int32_t intptr_t; |
|
|
544 | #endif |
523 | #else |
545 | #else |
524 | #include <inttypes.h> |
546 | #include <inttypes.h> |
|
|
547 | #if UINTMAX_MAX > 0xffffffffU |
|
|
548 | #define ECB_PTRSIZE 8 |
|
|
549 | #else |
|
|
550 | #define ECB_PTRSIZE 4 |
|
|
551 | #endif |
525 | #endif |
552 | #endif |
526 | |
553 | |
527 | /* many compilers define _GNUC_ to some versions but then only implement |
554 | /* many compilers define _GNUC_ to some versions but then only implement |
528 | * what their idiot authors think are the "more important" extensions, |
555 | * what their idiot authors think are the "more important" extensions, |
529 | * causing enormous grief in return for some better fake benchmark numbers. |
556 | * causing enormous grief in return for some better fake benchmark numbers. |
… | |
… | |
537 | #else |
564 | #else |
538 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
565 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
539 | #endif |
566 | #endif |
540 | #endif |
567 | #endif |
541 | |
568 | |
|
|
569 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
570 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
571 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
572 | #define ECB_CPP (__cplusplus+0) |
|
|
573 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
574 | |
|
|
575 | #if ECB_CPP |
|
|
576 | #define ECB_EXTERN_C extern "C" |
|
|
577 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
578 | #define ECB_EXTERN_C_END } |
|
|
579 | #else |
|
|
580 | #define ECB_EXTERN_C extern |
|
|
581 | #define ECB_EXTERN_C_BEG |
|
|
582 | #define ECB_EXTERN_C_END |
|
|
583 | #endif |
|
|
584 | |
542 | /*****************************************************************************/ |
585 | /*****************************************************************************/ |
543 | |
586 | |
544 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
587 | /* 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 */ |
588 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
546 | |
589 | |
547 | #if ECB_NO_THREADS |
590 | #if ECB_NO_THREADS |
548 | # define ECB_NO_SMP 1 |
591 | #define ECB_NO_SMP 1 |
549 | #endif |
592 | #endif |
550 | |
593 | |
551 | #if ECB_NO_THREADS || ECB_NO_SMP |
594 | #if ECB_NO_SMP |
552 | #define ECB_MEMORY_FENCE do { } while (0) |
595 | #define ECB_MEMORY_FENCE do { } while (0) |
553 | #endif |
596 | #endif |
554 | |
597 | |
555 | #ifndef ECB_MEMORY_FENCE |
598 | #ifndef ECB_MEMORY_FENCE |
556 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
599 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
557 | #if __i386 || __i386__ |
600 | #if __i386 || __i386__ |
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
601 | #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 */ |
602 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
560 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
603 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
561 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
604 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
606 | #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 */ |
607 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
565 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
608 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
609 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
567 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
610 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
568 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
611 | || 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") |
612 | #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__ \ |
613 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
571 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
614 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
615 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
573 | #elif __sparc || __sparc__ |
616 | #elif __sparc || __sparc__ |
574 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
617 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
575 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
618 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
576 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
619 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
577 | #elif defined __s390__ || defined __s390x__ |
620 | #elif defined __s390__ || defined __s390x__ |
578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
579 | #elif defined __mips__ |
622 | #elif defined __mips__ |
580 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
623 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
581 | #elif defined __alpha__ |
624 | #elif defined __alpha__ |
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
625 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
626 | #elif defined __hppa__ |
|
|
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
629 | #elif defined __ia64__ |
|
|
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
583 | #endif |
631 | #endif |
584 | #endif |
632 | #endif |
585 | #endif |
633 | #endif |
586 | |
634 | |
587 | #ifndef ECB_MEMORY_FENCE |
635 | #ifndef ECB_MEMORY_FENCE |
|
|
636 | #if ECB_GCC_VERSION(4,7) |
|
|
637 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
638 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
639 | |
|
|
640 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
641 | * without risking compile time errors with other compilers. We *could* |
|
|
642 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
643 | * around this shit time and again. |
|
|
644 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
645 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
646 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
647 | */ |
|
|
648 | |
588 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
649 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
589 | #define ECB_MEMORY_FENCE __sync_synchronize () |
650 | #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 */ |
651 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
593 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
652 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
594 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
653 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
595 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
654 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
596 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
655 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
… | |
… | |
606 | #define ECB_MEMORY_FENCE __sync () |
665 | #define ECB_MEMORY_FENCE __sync () |
607 | #endif |
666 | #endif |
608 | #endif |
667 | #endif |
609 | |
668 | |
610 | #ifndef ECB_MEMORY_FENCE |
669 | #ifndef ECB_MEMORY_FENCE |
|
|
670 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
671 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
672 | /* not just C11 atomics and atomic accesses */ |
|
|
673 | #include <stdatomic.h> |
|
|
674 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
675 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
676 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
677 | /* for most usages, or gcc and clang have a bug */ |
|
|
678 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
679 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
680 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
681 | #endif |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | #ifndef ECB_MEMORY_FENCE |
611 | #if !ECB_AVOID_PTHREADS |
685 | #if !ECB_AVOID_PTHREADS |
612 | /* |
686 | /* |
613 | * if you get undefined symbol references to pthread_mutex_lock, |
687 | * if you get undefined symbol references to pthread_mutex_lock, |
614 | * or failure to find pthread.h, then you should implement |
688 | * or failure to find pthread.h, then you should implement |
615 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
689 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
… | |
… | |
633 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
707 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
634 | #endif |
708 | #endif |
635 | |
709 | |
636 | /*****************************************************************************/ |
710 | /*****************************************************************************/ |
637 | |
711 | |
638 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
639 | |
|
|
640 | #if __cplusplus |
712 | #if __cplusplus |
641 | #define ecb_inline static inline |
713 | #define ecb_inline static inline |
642 | #elif ECB_GCC_VERSION(2,5) |
714 | #elif ECB_GCC_VERSION(2,5) |
643 | #define ecb_inline static __inline__ |
715 | #define ecb_inline static __inline__ |
644 | #elif ECB_C99 |
716 | #elif ECB_C99 |
… | |
… | |
682 | #elif ECB_GCC_VERSION(3,0) |
754 | #elif ECB_GCC_VERSION(3,0) |
683 | #define ecb_decltype(x) __typeof(x) |
755 | #define ecb_decltype(x) __typeof(x) |
684 | #endif |
756 | #endif |
685 | |
757 | |
686 | #define ecb_noinline ecb_attribute ((__noinline__)) |
758 | #define ecb_noinline ecb_attribute ((__noinline__)) |
687 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
688 | #define ecb_unused ecb_attribute ((__unused__)) |
759 | #define ecb_unused ecb_attribute ((__unused__)) |
689 | #define ecb_const ecb_attribute ((__const__)) |
760 | #define ecb_const ecb_attribute ((__const__)) |
690 | #define ecb_pure ecb_attribute ((__pure__)) |
761 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
762 | |
|
|
763 | #if ECB_C11 |
|
|
764 | #define ecb_noreturn _Noreturn |
|
|
765 | #else |
|
|
766 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
767 | #endif |
691 | |
768 | |
692 | #if ECB_GCC_VERSION(4,3) |
769 | #if ECB_GCC_VERSION(4,3) |
693 | #define ecb_artificial ecb_attribute ((__artificial__)) |
770 | #define ecb_artificial ecb_attribute ((__artificial__)) |
694 | #define ecb_hot ecb_attribute ((__hot__)) |
771 | #define ecb_hot ecb_attribute ((__hot__)) |
695 | #define ecb_cold ecb_attribute ((__cold__)) |
772 | #define ecb_cold ecb_attribute ((__cold__)) |
… | |
… | |
786 | |
863 | |
787 | return r + ecb_ld32 (x); |
864 | return r + ecb_ld32 (x); |
788 | } |
865 | } |
789 | #endif |
866 | #endif |
790 | |
867 | |
|
|
868 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
869 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
870 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
871 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
872 | |
791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
873 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
874 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
793 | { |
875 | { |
794 | return ( (x * 0x0802U & 0x22110U) |
876 | return ( (x * 0x0802U & 0x22110U) |
795 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
877 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
… | |
… | |
879 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
961 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
880 | ecb_inline void ecb_unreachable (void) { } |
962 | ecb_inline void ecb_unreachable (void) { } |
881 | #endif |
963 | #endif |
882 | |
964 | |
883 | /* try to tell the compiler that some condition is definitely true */ |
965 | /* try to tell the compiler that some condition is definitely true */ |
884 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
966 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
885 | |
967 | |
886 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
968 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
887 | ecb_inline unsigned char |
969 | ecb_inline unsigned char |
888 | ecb_byteorder_helper (void) |
970 | ecb_byteorder_helper (void) |
889 | { |
971 | { |
890 | const uint32_t u = 0x11223344; |
972 | /* the union code still generates code under pressure in gcc, */ |
891 | return *(unsigned char *)&u; |
973 | /* but less than using pointers, and always seems to */ |
|
|
974 | /* successfully return a constant. */ |
|
|
975 | /* the reason why we have this horrible preprocessor mess */ |
|
|
976 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
977 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
978 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
979 | return 0x44; |
|
|
980 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
981 | return 0x44; |
|
|
982 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
983 | return 0x11; |
|
|
984 | #else |
|
|
985 | union |
|
|
986 | { |
|
|
987 | uint32_t i; |
|
|
988 | uint8_t c; |
|
|
989 | } u = { 0x11223344 }; |
|
|
990 | return u.c; |
|
|
991 | #endif |
892 | } |
992 | } |
893 | |
993 | |
894 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
994 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
895 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
995 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
896 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
996 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
… | |
… | |
927 | } |
1027 | } |
928 | #else |
1028 | #else |
929 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1029 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
930 | #endif |
1030 | #endif |
931 | |
1031 | |
|
|
1032 | /*******************************************************************************/ |
|
|
1033 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1034 | |
|
|
1035 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1036 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1037 | #if 0 \ |
|
|
1038 | || __i386 || __i386__ \ |
|
|
1039 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1040 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1041 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1042 | || defined __s390__ || defined __s390x__ \ |
|
|
1043 | || defined __mips__ \ |
|
|
1044 | || defined __alpha__ \ |
|
|
1045 | || defined __hppa__ \ |
|
|
1046 | || defined __ia64__ \ |
|
|
1047 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1048 | #define ECB_STDFP 1 |
|
|
1049 | #include <string.h> /* for memcpy */ |
|
|
1050 | #else |
|
|
1051 | #define ECB_STDFP 0 |
|
|
1052 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1053 | #endif |
|
|
1054 | |
|
|
1055 | #ifndef ECB_NO_LIBM |
|
|
1056 | |
|
|
1057 | /* convert a float to ieee single/binary32 */ |
|
|
1058 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1059 | ecb_function_ uint32_t |
|
|
1060 | ecb_float_to_binary32 (float x) |
|
|
1061 | { |
|
|
1062 | uint32_t r; |
|
|
1063 | |
|
|
1064 | #if ECB_STDFP |
|
|
1065 | memcpy (&r, &x, 4); |
|
|
1066 | #else |
|
|
1067 | /* slow emulation, works for anything but -0 */ |
|
|
1068 | uint32_t m; |
|
|
1069 | int e; |
|
|
1070 | |
|
|
1071 | if (x == 0e0f ) return 0x00000000U; |
|
|
1072 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1073 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1074 | if (x != x ) return 0x7fbfffffU; |
|
|
1075 | |
|
|
1076 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1077 | |
|
|
1078 | r = m & 0x80000000U; |
|
|
1079 | |
|
|
1080 | if (r) |
|
|
1081 | m = -m; |
|
|
1082 | |
|
|
1083 | if (e <= -126) |
|
|
1084 | { |
|
|
1085 | m &= 0xffffffU; |
|
|
1086 | m >>= (-125 - e); |
|
|
1087 | e = -126; |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | r |= (e + 126) << 23; |
|
|
1091 | r |= m & 0x7fffffU; |
|
|
1092 | #endif |
|
|
1093 | |
|
|
1094 | return r; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* converts an ieee single/binary32 to a float */ |
|
|
1098 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1099 | ecb_function_ float |
|
|
1100 | ecb_binary32_to_float (uint32_t x) |
|
|
1101 | { |
|
|
1102 | float r; |
|
|
1103 | |
|
|
1104 | #if ECB_STDFP |
|
|
1105 | memcpy (&r, &x, 4); |
|
|
1106 | #else |
|
|
1107 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1108 | int neg = x >> 31; |
|
|
1109 | int e = (x >> 23) & 0xffU; |
|
|
1110 | |
|
|
1111 | x &= 0x7fffffU; |
|
|
1112 | |
|
|
1113 | if (e) |
|
|
1114 | x |= 0x800000U; |
|
|
1115 | else |
|
|
1116 | e = 1; |
|
|
1117 | |
|
|
1118 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1119 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1120 | |
|
|
1121 | r = neg ? -r : r; |
|
|
1122 | #endif |
|
|
1123 | |
|
|
1124 | return r; |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | /* convert a double to ieee double/binary64 */ |
|
|
1128 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1129 | ecb_function_ uint64_t |
|
|
1130 | ecb_double_to_binary64 (double x) |
|
|
1131 | { |
|
|
1132 | uint64_t r; |
|
|
1133 | |
|
|
1134 | #if ECB_STDFP |
|
|
1135 | memcpy (&r, &x, 8); |
|
|
1136 | #else |
|
|
1137 | /* slow emulation, works for anything but -0 */ |
|
|
1138 | uint64_t m; |
|
|
1139 | int e; |
|
|
1140 | |
|
|
1141 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1142 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1143 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1144 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1145 | |
|
|
1146 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1147 | |
|
|
1148 | r = m & 0x8000000000000000;; |
|
|
1149 | |
|
|
1150 | if (r) |
|
|
1151 | m = -m; |
|
|
1152 | |
|
|
1153 | if (e <= -1022) |
|
|
1154 | { |
|
|
1155 | m &= 0x1fffffffffffffU; |
|
|
1156 | m >>= (-1021 - e); |
|
|
1157 | e = -1022; |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1161 | r |= m & 0xfffffffffffffU; |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | return r; |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | /* converts an ieee double/binary64 to a double */ |
|
|
1168 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1169 | ecb_function_ double |
|
|
1170 | ecb_binary64_to_double (uint64_t x) |
|
|
1171 | { |
|
|
1172 | double r; |
|
|
1173 | |
|
|
1174 | #if ECB_STDFP |
|
|
1175 | memcpy (&r, &x, 8); |
|
|
1176 | #else |
|
|
1177 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1178 | int neg = x >> 63; |
|
|
1179 | int e = (x >> 52) & 0x7ffU; |
|
|
1180 | |
|
|
1181 | x &= 0xfffffffffffffU; |
|
|
1182 | |
|
|
1183 | if (e) |
|
|
1184 | x |= 0x10000000000000U; |
|
|
1185 | else |
|
|
1186 | e = 1; |
|
|
1187 | |
|
|
1188 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1189 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1190 | |
|
|
1191 | r = neg ? -r : r; |
|
|
1192 | #endif |
|
|
1193 | |
|
|
1194 | return r; |
|
|
1195 | } |
|
|
1196 | |
|
|
1197 | #endif |
|
|
1198 | |
932 | #endif |
1199 | #endif |
933 | |
1200 | |
934 | /* ECB.H END */ |
1201 | /* ECB.H END */ |
935 | |
1202 | |
936 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
1203 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
… | |
… | |
1105 | #endif |
1372 | #endif |
1106 | |
1373 | |
1107 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1374 | static void (*syserr_cb)(const char *msg) EV_THROW; |
1108 | |
1375 | |
1109 | void ecb_cold |
1376 | void ecb_cold |
1110 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
1377 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
1111 | { |
1378 | { |
1112 | syserr_cb = cb; |
1379 | syserr_cb = cb; |
1113 | } |
1380 | } |
1114 | |
1381 | |
1115 | static void noinline ecb_cold |
1382 | static void noinline ecb_cold |
… | |
… | |
1133 | abort (); |
1400 | abort (); |
1134 | } |
1401 | } |
1135 | } |
1402 | } |
1136 | |
1403 | |
1137 | static void * |
1404 | static void * |
1138 | ev_realloc_emul (void *ptr, long size) |
1405 | ev_realloc_emul (void *ptr, long size) EV_THROW |
1139 | { |
1406 | { |
1140 | #if __GLIBC__ |
|
|
1141 | return realloc (ptr, size); |
|
|
1142 | #else |
|
|
1143 | /* some systems, notably openbsd and darwin, fail to properly |
1407 | /* some systems, notably openbsd and darwin, fail to properly |
1144 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1408 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1145 | * the single unix specification, so work around them here. |
1409 | * the single unix specification, so work around them here. |
|
|
1410 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1411 | * despite documenting it otherwise. |
1146 | */ |
1412 | */ |
1147 | |
1413 | |
1148 | if (size) |
1414 | if (size) |
1149 | return realloc (ptr, size); |
1415 | return realloc (ptr, size); |
1150 | |
1416 | |
1151 | free (ptr); |
1417 | free (ptr); |
1152 | return 0; |
1418 | return 0; |
1153 | #endif |
|
|
1154 | } |
1419 | } |
1155 | |
1420 | |
1156 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1421 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
1157 | |
1422 | |
1158 | void ecb_cold |
1423 | void ecb_cold |
1159 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
1424 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
1160 | { |
1425 | { |
1161 | alloc = cb; |
1426 | alloc = cb; |
1162 | } |
1427 | } |
1163 | |
1428 | |
1164 | inline_speed void * |
1429 | inline_speed void * |
… | |
… | |
1813 | static void noinline ecb_cold |
2078 | static void noinline ecb_cold |
1814 | evpipe_init (EV_P) |
2079 | evpipe_init (EV_P) |
1815 | { |
2080 | { |
1816 | if (!ev_is_active (&pipe_w)) |
2081 | if (!ev_is_active (&pipe_w)) |
1817 | { |
2082 | { |
|
|
2083 | int fds [2]; |
|
|
2084 | |
1818 | # if EV_USE_EVENTFD |
2085 | # if EV_USE_EVENTFD |
|
|
2086 | fds [0] = -1; |
1819 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2087 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1820 | if (evfd < 0 && errno == EINVAL) |
2088 | if (fds [1] < 0 && errno == EINVAL) |
1821 | evfd = eventfd (0, 0); |
2089 | fds [1] = eventfd (0, 0); |
1822 | |
2090 | |
1823 | if (evfd >= 0) |
2091 | 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 |
2092 | # endif |
1831 | { |
2093 | { |
1832 | while (pipe (evpipe)) |
2094 | while (pipe (fds)) |
1833 | ev_syserr ("(libev) error creating signal/async pipe"); |
2095 | ev_syserr ("(libev) error creating signal/async pipe"); |
1834 | |
2096 | |
1835 | fd_intern (evpipe [0]); |
2097 | fd_intern (fds [0]); |
1836 | fd_intern (evpipe [1]); |
|
|
1837 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1838 | } |
2098 | } |
1839 | |
2099 | |
|
|
2100 | fd_intern (fds [1]); |
|
|
2101 | |
|
|
2102 | evpipe [0] = fds [0]; |
|
|
2103 | |
|
|
2104 | if (evpipe [1] < 0) |
|
|
2105 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2106 | else |
|
|
2107 | { |
|
|
2108 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2109 | /* so that evpipe_write can always rely on its value. */ |
|
|
2110 | /* this branch does not do anything sensible on windows, */ |
|
|
2111 | /* so must not be executed on windows */ |
|
|
2112 | |
|
|
2113 | dup2 (fds [1], evpipe [1]); |
|
|
2114 | close (fds [1]); |
|
|
2115 | } |
|
|
2116 | |
|
|
2117 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1840 | ev_io_start (EV_A_ &pipe_w); |
2118 | ev_io_start (EV_A_ &pipe_w); |
1841 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2119 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1842 | } |
2120 | } |
1843 | } |
2121 | } |
1844 | |
2122 | |
… | |
… | |
1849 | |
2127 | |
1850 | if (expect_true (*flag)) |
2128 | if (expect_true (*flag)) |
1851 | return; |
2129 | return; |
1852 | |
2130 | |
1853 | *flag = 1; |
2131 | *flag = 1; |
1854 | |
|
|
1855 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
2132 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
1856 | |
2133 | |
1857 | pipe_write_skipped = 1; |
2134 | pipe_write_skipped = 1; |
1858 | |
2135 | |
1859 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
2136 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
1860 | |
2137 | |
1861 | if (pipe_write_wanted) |
2138 | if (pipe_write_wanted) |
1862 | { |
2139 | { |
1863 | int old_errno; |
2140 | int old_errno; |
1864 | |
2141 | |
1865 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
2142 | pipe_write_skipped = 0; |
|
|
2143 | ECB_MEMORY_FENCE_RELEASE; |
1866 | |
2144 | |
1867 | old_errno = errno; /* save errno because write will clobber it */ |
2145 | old_errno = errno; /* save errno because write will clobber it */ |
1868 | |
2146 | |
1869 | #if EV_USE_EVENTFD |
2147 | #if EV_USE_EVENTFD |
1870 | if (evfd >= 0) |
2148 | if (evpipe [0] < 0) |
1871 | { |
2149 | { |
1872 | uint64_t counter = 1; |
2150 | uint64_t counter = 1; |
1873 | write (evfd, &counter, sizeof (uint64_t)); |
2151 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1874 | } |
2152 | } |
1875 | else |
2153 | else |
1876 | #endif |
2154 | #endif |
1877 | { |
2155 | { |
1878 | #ifdef _WIN32 |
2156 | #ifdef _WIN32 |
… | |
… | |
1898 | int i; |
2176 | int i; |
1899 | |
2177 | |
1900 | if (revents & EV_READ) |
2178 | if (revents & EV_READ) |
1901 | { |
2179 | { |
1902 | #if EV_USE_EVENTFD |
2180 | #if EV_USE_EVENTFD |
1903 | if (evfd >= 0) |
2181 | if (evpipe [0] < 0) |
1904 | { |
2182 | { |
1905 | uint64_t counter; |
2183 | uint64_t counter; |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
2184 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1907 | } |
2185 | } |
1908 | else |
2186 | else |
1909 | #endif |
2187 | #endif |
1910 | { |
2188 | { |
1911 | char dummy[4]; |
2189 | char dummy[4]; |
1912 | #ifdef _WIN32 |
2190 | #ifdef _WIN32 |
1913 | WSABUF buf; |
2191 | WSABUF buf; |
1914 | DWORD recvd; |
2192 | DWORD recvd; |
|
|
2193 | DWORD flags = 0; |
1915 | buf.buf = dummy; |
2194 | buf.buf = dummy; |
1916 | buf.len = sizeof (dummy); |
2195 | buf.len = sizeof (dummy); |
1917 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); |
2196 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
1918 | #else |
2197 | #else |
1919 | read (evpipe [0], &dummy, sizeof (dummy)); |
2198 | read (evpipe [0], &dummy, sizeof (dummy)); |
1920 | #endif |
2199 | #endif |
1921 | } |
2200 | } |
1922 | } |
2201 | } |
… | |
… | |
1928 | #if EV_SIGNAL_ENABLE |
2207 | #if EV_SIGNAL_ENABLE |
1929 | if (sig_pending) |
2208 | if (sig_pending) |
1930 | { |
2209 | { |
1931 | sig_pending = 0; |
2210 | sig_pending = 0; |
1932 | |
2211 | |
1933 | ECB_MEMORY_FENCE_RELEASE; |
2212 | ECB_MEMORY_FENCE; |
1934 | |
2213 | |
1935 | for (i = EV_NSIG - 1; i--; ) |
2214 | for (i = EV_NSIG - 1; i--; ) |
1936 | if (expect_false (signals [i].pending)) |
2215 | if (expect_false (signals [i].pending)) |
1937 | ev_feed_signal_event (EV_A_ i + 1); |
2216 | ev_feed_signal_event (EV_A_ i + 1); |
1938 | } |
2217 | } |
… | |
… | |
1941 | #if EV_ASYNC_ENABLE |
2220 | #if EV_ASYNC_ENABLE |
1942 | if (async_pending) |
2221 | if (async_pending) |
1943 | { |
2222 | { |
1944 | async_pending = 0; |
2223 | async_pending = 0; |
1945 | |
2224 | |
1946 | ECB_MEMORY_FENCE_RELEASE; |
2225 | ECB_MEMORY_FENCE; |
1947 | |
2226 | |
1948 | for (i = asynccnt; i--; ) |
2227 | for (i = asynccnt; i--; ) |
1949 | if (asyncs [i]->sent) |
2228 | if (asyncs [i]->sent) |
1950 | { |
2229 | { |
1951 | asyncs [i]->sent = 0; |
2230 | asyncs [i]->sent = 0; |
|
|
2231 | ECB_MEMORY_FENCE_RELEASE; |
1952 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2232 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1953 | } |
2233 | } |
1954 | } |
2234 | } |
1955 | #endif |
2235 | #endif |
1956 | } |
2236 | } |
… | |
… | |
1959 | |
2239 | |
1960 | void |
2240 | void |
1961 | ev_feed_signal (int signum) EV_THROW |
2241 | ev_feed_signal (int signum) EV_THROW |
1962 | { |
2242 | { |
1963 | #if EV_MULTIPLICITY |
2243 | #if EV_MULTIPLICITY |
|
|
2244 | EV_P; |
|
|
2245 | ECB_MEMORY_FENCE_ACQUIRE; |
1964 | EV_P = signals [signum - 1].loop; |
2246 | EV_A = signals [signum - 1].loop; |
1965 | |
2247 | |
1966 | if (!EV_A) |
2248 | if (!EV_A) |
1967 | return; |
2249 | return; |
1968 | #endif |
2250 | #endif |
1969 | |
2251 | |
1970 | if (!ev_active (&pipe_w)) |
|
|
1971 | return; |
|
|
1972 | |
|
|
1973 | signals [signum - 1].pending = 1; |
2252 | signals [signum - 1].pending = 1; |
1974 | evpipe_write (EV_A_ &sig_pending); |
2253 | evpipe_write (EV_A_ &sig_pending); |
1975 | } |
2254 | } |
1976 | |
2255 | |
1977 | static void |
2256 | static void |
… | |
… | |
1987 | void noinline |
2266 | void noinline |
1988 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
2267 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1989 | { |
2268 | { |
1990 | WL w; |
2269 | WL w; |
1991 | |
2270 | |
1992 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2271 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1993 | return; |
2272 | return; |
1994 | |
2273 | |
1995 | --signum; |
2274 | --signum; |
1996 | |
2275 | |
1997 | #if EV_MULTIPLICITY |
2276 | #if EV_MULTIPLICITY |
… | |
… | |
2001 | if (expect_false (signals [signum].loop != EV_A)) |
2280 | if (expect_false (signals [signum].loop != EV_A)) |
2002 | return; |
2281 | return; |
2003 | #endif |
2282 | #endif |
2004 | |
2283 | |
2005 | signals [signum].pending = 0; |
2284 | signals [signum].pending = 0; |
|
|
2285 | ECB_MEMORY_FENCE_RELEASE; |
2006 | |
2286 | |
2007 | for (w = signals [signum].head; w; w = w->next) |
2287 | for (w = signals [signum].head; w; w = w->next) |
2008 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2288 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2009 | } |
2289 | } |
2010 | |
2290 | |
… | |
… | |
2294 | #if EV_ASYNC_ENABLE |
2574 | #if EV_ASYNC_ENABLE |
2295 | async_pending = 0; |
2575 | async_pending = 0; |
2296 | #endif |
2576 | #endif |
2297 | pipe_write_skipped = 0; |
2577 | pipe_write_skipped = 0; |
2298 | pipe_write_wanted = 0; |
2578 | pipe_write_wanted = 0; |
|
|
2579 | evpipe [0] = -1; |
|
|
2580 | evpipe [1] = -1; |
2299 | #if EV_USE_INOTIFY |
2581 | #if EV_USE_INOTIFY |
2300 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2582 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2301 | #endif |
2583 | #endif |
2302 | #if EV_USE_SIGNALFD |
2584 | #if EV_USE_SIGNALFD |
2303 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2585 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
… | |
… | |
2354 | EV_INVOKE_PENDING; |
2636 | EV_INVOKE_PENDING; |
2355 | } |
2637 | } |
2356 | #endif |
2638 | #endif |
2357 | |
2639 | |
2358 | #if EV_CHILD_ENABLE |
2640 | #if EV_CHILD_ENABLE |
2359 | if (ev_is_active (&childev)) |
2641 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
2360 | { |
2642 | { |
2361 | ev_ref (EV_A); /* child watcher */ |
2643 | ev_ref (EV_A); /* child watcher */ |
2362 | ev_signal_stop (EV_A_ &childev); |
2644 | ev_signal_stop (EV_A_ &childev); |
2363 | } |
2645 | } |
2364 | #endif |
2646 | #endif |
… | |
… | |
2366 | if (ev_is_active (&pipe_w)) |
2648 | if (ev_is_active (&pipe_w)) |
2367 | { |
2649 | { |
2368 | /*ev_ref (EV_A);*/ |
2650 | /*ev_ref (EV_A);*/ |
2369 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2651 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2370 | |
2652 | |
2371 | #if EV_USE_EVENTFD |
|
|
2372 | if (evfd >= 0) |
|
|
2373 | close (evfd); |
|
|
2374 | #endif |
|
|
2375 | |
|
|
2376 | if (evpipe [0] >= 0) |
|
|
2377 | { |
|
|
2378 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2653 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
2379 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2654 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
2380 | } |
|
|
2381 | } |
2655 | } |
2382 | |
2656 | |
2383 | #if EV_USE_SIGNALFD |
2657 | #if EV_USE_SIGNALFD |
2384 | if (ev_is_active (&sigfd_w)) |
2658 | if (ev_is_active (&sigfd_w)) |
2385 | close (sigfd); |
2659 | close (sigfd); |
… | |
… | |
2471 | #endif |
2745 | #endif |
2472 | #if EV_USE_INOTIFY |
2746 | #if EV_USE_INOTIFY |
2473 | infy_fork (EV_A); |
2747 | infy_fork (EV_A); |
2474 | #endif |
2748 | #endif |
2475 | |
2749 | |
|
|
2750 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2476 | if (ev_is_active (&pipe_w)) |
2751 | if (ev_is_active (&pipe_w)) |
2477 | { |
2752 | { |
2478 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2753 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
2479 | |
2754 | |
2480 | ev_ref (EV_A); |
2755 | ev_ref (EV_A); |
2481 | ev_io_stop (EV_A_ &pipe_w); |
2756 | ev_io_stop (EV_A_ &pipe_w); |
2482 | |
2757 | |
2483 | #if EV_USE_EVENTFD |
|
|
2484 | if (evfd >= 0) |
|
|
2485 | close (evfd); |
|
|
2486 | #endif |
|
|
2487 | |
|
|
2488 | if (evpipe [0] >= 0) |
2758 | if (evpipe [0] >= 0) |
2489 | { |
|
|
2490 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2759 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2491 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2492 | } |
|
|
2493 | |
2760 | |
2494 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2495 | evpipe_init (EV_A); |
2761 | evpipe_init (EV_A); |
2496 | /* now iterate over everything, in case we missed something */ |
2762 | /* iterate over everything, in case we missed something before */ |
2497 | pipecb (EV_A_ &pipe_w, EV_READ); |
2763 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
2498 | #endif |
|
|
2499 | } |
2764 | } |
|
|
2765 | #endif |
2500 | |
2766 | |
2501 | postfork = 0; |
2767 | postfork = 0; |
2502 | } |
2768 | } |
2503 | |
2769 | |
2504 | #if EV_MULTIPLICITY |
2770 | #if EV_MULTIPLICITY |
… | |
… | |
2677 | } |
2943 | } |
2678 | |
2944 | |
2679 | void |
2945 | void |
2680 | ev_loop_fork (EV_P) EV_THROW |
2946 | ev_loop_fork (EV_P) EV_THROW |
2681 | { |
2947 | { |
2682 | postfork = 1; /* must be in line with ev_default_fork */ |
2948 | postfork = 1; |
2683 | } |
2949 | } |
2684 | |
2950 | |
2685 | /*****************************************************************************/ |
2951 | /*****************************************************************************/ |
2686 | |
2952 | |
2687 | void |
2953 | void |
… | |
… | |
2703 | } |
2969 | } |
2704 | |
2970 | |
2705 | void noinline |
2971 | void noinline |
2706 | ev_invoke_pending (EV_P) |
2972 | ev_invoke_pending (EV_P) |
2707 | { |
2973 | { |
2708 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
2974 | pendingpri = NUMPRI; |
|
|
2975 | |
|
|
2976 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2977 | { |
|
|
2978 | --pendingpri; |
|
|
2979 | |
2709 | while (pendingcnt [pendingpri]) |
2980 | while (pendingcnt [pendingpri]) |
2710 | { |
2981 | { |
2711 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2982 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2712 | |
2983 | |
2713 | p->w->pending = 0; |
2984 | p->w->pending = 0; |
2714 | EV_CB_INVOKE (p->w, p->events); |
2985 | EV_CB_INVOKE (p->w, p->events); |
2715 | EV_FREQUENT_CHECK; |
2986 | EV_FREQUENT_CHECK; |
2716 | } |
2987 | } |
|
|
2988 | } |
2717 | } |
2989 | } |
2718 | |
2990 | |
2719 | #if EV_IDLE_ENABLE |
2991 | #if EV_IDLE_ENABLE |
2720 | /* make idle watchers pending. this handles the "call-idle */ |
2992 | /* make idle watchers pending. this handles the "call-idle */ |
2721 | /* only when higher priorities are idle" logic */ |
2993 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2811 | { |
3083 | { |
2812 | EV_FREQUENT_CHECK; |
3084 | EV_FREQUENT_CHECK; |
2813 | |
3085 | |
2814 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3086 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2815 | { |
3087 | { |
2816 | int feed_count = 0; |
|
|
2817 | |
|
|
2818 | do |
3088 | do |
2819 | { |
3089 | { |
2820 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3090 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2821 | |
3091 | |
2822 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3092 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
3081 | backend_poll (EV_A_ waittime); |
3351 | backend_poll (EV_A_ waittime); |
3082 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3352 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3083 | |
3353 | |
3084 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3354 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
3085 | |
3355 | |
|
|
3356 | ECB_MEMORY_FENCE_ACQUIRE; |
3086 | if (pipe_write_skipped) |
3357 | if (pipe_write_skipped) |
3087 | { |
3358 | { |
3088 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3359 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
3089 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3360 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
3090 | } |
3361 | } |
… | |
… | |
3468 | #if EV_MULTIPLICITY |
3739 | #if EV_MULTIPLICITY |
3469 | assert (("libev: a signal must not be attached to two different loops", |
3740 | assert (("libev: a signal must not be attached to two different loops", |
3470 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3741 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3471 | |
3742 | |
3472 | signals [w->signum - 1].loop = EV_A; |
3743 | signals [w->signum - 1].loop = EV_A; |
|
|
3744 | ECB_MEMORY_FENCE_RELEASE; |
3473 | #endif |
3745 | #endif |
3474 | |
3746 | |
3475 | EV_FREQUENT_CHECK; |
3747 | EV_FREQUENT_CHECK; |
3476 | |
3748 | |
3477 | #if EV_USE_SIGNALFD |
3749 | #if EV_USE_SIGNALFD |
… | |
… | |
3632 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3904 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3633 | |
3905 | |
3634 | static void noinline |
3906 | static void noinline |
3635 | infy_add (EV_P_ ev_stat *w) |
3907 | infy_add (EV_P_ ev_stat *w) |
3636 | { |
3908 | { |
3637 | 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); |
3909 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3910 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3911 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3912 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3638 | |
3913 | |
3639 | if (w->wd >= 0) |
3914 | if (w->wd >= 0) |
3640 | { |
3915 | { |
3641 | struct statfs sfs; |
3916 | struct statfs sfs; |
3642 | |
3917 | |
… | |
… | |
3646 | |
3921 | |
3647 | if (!fs_2625) |
3922 | if (!fs_2625) |
3648 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3923 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3649 | else if (!statfs (w->path, &sfs) |
3924 | else if (!statfs (w->path, &sfs) |
3650 | && (sfs.f_type == 0x1373 /* devfs */ |
3925 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3926 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3927 | || sfs.f_type == 0x4d44 /* msdos */ |
3651 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3928 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3929 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3930 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3931 | || sfs.f_type == 0x5346544e /* ntfs */ |
3652 | || sfs.f_type == 0x3153464a /* jfs */ |
3932 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3933 | || sfs.f_type == 0x9123683e /* btrfs */ |
3653 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3934 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3654 | || sfs.f_type == 0x01021994 /* tempfs */ |
3935 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3655 | || sfs.f_type == 0x58465342 /* xfs */)) |
3936 | || sfs.f_type == 0x58465342 /* xfs */)) |
3656 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3937 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3657 | else |
3938 | else |
3658 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3939 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3659 | } |
3940 | } |