… | |
… | |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
465 | |
465 | |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
468 | |
468 | |
469 | /* the following are taken from libecb */ |
469 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
470 | /* ecb.h start */ |
470 | /* ECB.H BEGIN */ |
|
|
471 | /* |
|
|
472 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
473 | * |
|
|
474 | * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> |
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475 | * Copyright (©) 2011 Emanuele Giaquinta |
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476 | * All rights reserved. |
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477 | * |
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|
478 | * Redistribution and use in source and binary forms, with or without modifica- |
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|
479 | * tion, are permitted provided that the following conditions are met: |
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480 | * |
|
|
481 | * 1. Redistributions of source code must retain the above copyright notice, |
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482 | * this list of conditions and the following disclaimer. |
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|
483 | * |
|
|
484 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
485 | * notice, this list of conditions and the following disclaimer in the |
|
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486 | * documentation and/or other materials provided with the distribution. |
|
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487 | * |
|
|
488 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
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489 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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|
490 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
491 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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492 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
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493 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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494 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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495 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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496 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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497 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
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498 | */ |
|
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499 | |
|
|
500 | #ifndef ECB_H |
|
|
501 | #define ECB_H |
|
|
502 | |
|
|
503 | #ifdef _WIN32 |
|
|
504 | typedef signed char int8_t; |
|
|
505 | typedef unsigned char uint8_t; |
|
|
506 | typedef signed short int16_t; |
|
|
507 | typedef unsigned short uint16_t; |
|
|
508 | typedef signed int int32_t; |
|
|
509 | typedef unsigned int uint32_t; |
|
|
510 | #if __GNUC__ |
|
|
511 | typedef signed long long int64_t; |
|
|
512 | typedef unsigned long long uint64_t; |
|
|
513 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
514 | typedef signed __int64 int64_t; |
|
|
515 | typedef unsigned __int64 uint64_t; |
|
|
516 | #endif |
|
|
517 | #else |
|
|
518 | #include <inttypes.h> |
|
|
519 | #endif |
471 | |
520 | |
472 | /* many compilers define _GNUC_ to some versions but then only implement |
521 | /* many compilers define _GNUC_ to some versions but then only implement |
473 | * what their idiot authors think are the "more important" extensions, |
522 | * what their idiot authors think are the "more important" extensions, |
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
523 | * causing enormous grief in return for some better fake benchmark numbers. |
475 | * or so. |
524 | * or so. |
476 | * we try to detect these and simply assume they are not gcc - if they have |
525 | * we try to detect these and simply assume they are not gcc - if they have |
477 | * an issue with that they should have done it right in the first place. |
526 | * an issue with that they should have done it right in the first place. |
478 | */ |
527 | */ |
479 | #ifndef ECB_GCC_VERSION |
528 | #ifndef ECB_GCC_VERSION |
… | |
… | |
482 | #else |
531 | #else |
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
532 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
484 | #endif |
533 | #endif |
485 | #endif |
534 | #endif |
486 | |
535 | |
487 | #if __cplusplus |
536 | /*****************************************************************************/ |
488 | #define ecb_inline static inline |
537 | |
489 | #elif ECB_GCC_VERSION(2,5) |
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
490 | #define ecb_inline static __inline__ |
539 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
491 | #elif ECB_C99 |
540 | |
492 | #define ecb_inline static inline |
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
493 | #else |
542 | #define ECB_MEMORY_FENCE do { } while (0) |
494 | #define ecb_inline static |
543 | #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0) |
|
|
544 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) |
495 | #endif |
545 | #endif |
496 | |
546 | |
497 | #ifndef ECB_MEMORY_FENCE |
547 | #ifndef ECB_MEMORY_FENCE |
498 | #if ECB_GCC_VERSION(2,5) |
548 | #if ECB_GCC_VERSION(2,5) |
499 | #if __x86 |
549 | #if __x86 |
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
551 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
552 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
503 | #elif __amd64 |
553 | #elif __amd64 |
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
555 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
556 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
507 | #endif |
557 | #endif |
508 | #endif |
558 | #endif |
509 | #endif |
559 | #endif |
510 | |
560 | |
511 | #ifndef ECB_MEMORY_FENCE |
561 | #ifndef ECB_MEMORY_FENCE |
… | |
… | |
518 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
568 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
519 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
569 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
520 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
570 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
521 | #elif defined(_WIN32) |
571 | #elif defined(_WIN32) |
522 | #include <WinNT.h> |
572 | #include <WinNT.h> |
523 | #define ECB_MEMORY_FENCE MemoryBarrier () |
573 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
524 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
574 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
525 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
575 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
526 | #endif |
576 | #endif |
527 | #endif |
577 | #endif |
528 | |
578 | |
529 | #ifndef ECB_MEMORY_FENCE |
579 | #ifndef ECB_MEMORY_FENCE |
|
|
580 | /* |
|
|
581 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
582 | * or failure to find pthread.h, then you should implement |
|
|
583 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
584 | * OR provide pthread.h and link against the posix thread library |
|
|
585 | * of your system. |
|
|
586 | */ |
530 | #include <pthread.h> |
587 | #include <pthread.h> |
|
|
588 | #define ECB_NEEDS_PTHREADS 1 |
|
|
589 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
531 | |
590 | |
532 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
591 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
533 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
592 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
534 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
593 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
535 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
594 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
536 | #endif |
595 | #endif |
|
|
596 | |
|
|
597 | /*****************************************************************************/ |
|
|
598 | |
|
|
599 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
600 | |
|
|
601 | #if __cplusplus |
|
|
602 | #define ecb_inline static inline |
|
|
603 | #elif ECB_GCC_VERSION(2,5) |
|
|
604 | #define ecb_inline static __inline__ |
|
|
605 | #elif ECB_C99 |
|
|
606 | #define ecb_inline static inline |
|
|
607 | #else |
|
|
608 | #define ecb_inline static |
|
|
609 | #endif |
|
|
610 | |
|
|
611 | #if ECB_GCC_VERSION(3,3) |
|
|
612 | #define ecb_restrict __restrict__ |
|
|
613 | #elif ECB_C99 |
|
|
614 | #define ecb_restrict restrict |
|
|
615 | #else |
|
|
616 | #define ecb_restrict |
|
|
617 | #endif |
|
|
618 | |
|
|
619 | typedef int ecb_bool; |
|
|
620 | |
|
|
621 | #define ECB_CONCAT_(a, b) a ## b |
|
|
622 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
623 | #define ECB_STRINGIFY_(a) # a |
|
|
624 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
625 | |
|
|
626 | #define ecb_function_ ecb_inline |
537 | |
627 | |
538 | #if ECB_GCC_VERSION(3,1) |
628 | #if ECB_GCC_VERSION(3,1) |
539 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
629 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
540 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
630 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
541 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
631 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
… | |
… | |
545 | #define ecb_is_constant(expr) 0 |
635 | #define ecb_is_constant(expr) 0 |
546 | #define ecb_expect(expr,value) (expr) |
636 | #define ecb_expect(expr,value) (expr) |
547 | #define ecb_prefetch(addr,rw,locality) |
637 | #define ecb_prefetch(addr,rw,locality) |
548 | #endif |
638 | #endif |
549 | |
639 | |
|
|
640 | /* no emulation for ecb_decltype */ |
|
|
641 | #if ECB_GCC_VERSION(4,5) |
|
|
642 | #define ecb_decltype(x) __decltype(x) |
|
|
643 | #elif ECB_GCC_VERSION(3,0) |
|
|
644 | #define ecb_decltype(x) __typeof(x) |
|
|
645 | #endif |
|
|
646 | |
550 | #define ecb_noinline ecb_attribute ((__noinline__)) |
647 | #define ecb_noinline ecb_attribute ((__noinline__)) |
551 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
648 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
552 | #define ecb_unused ecb_attribute ((__unused__)) |
649 | #define ecb_unused ecb_attribute ((__unused__)) |
553 | #define ecb_const ecb_attribute ((__const__)) |
650 | #define ecb_const ecb_attribute ((__const__)) |
554 | #define ecb_pure ecb_attribute ((__pure__)) |
651 | #define ecb_pure ecb_attribute ((__pure__)) |
… | |
… | |
566 | /* put around conditional expressions if you are very sure that the */ |
663 | /* put around conditional expressions if you are very sure that the */ |
567 | /* expression is mostly true or mostly false. note that these return */ |
664 | /* expression is mostly true or mostly false. note that these return */ |
568 | /* booleans, not the expression. */ |
665 | /* booleans, not the expression. */ |
569 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
666 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
570 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
667 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
571 | /* ecb.h end */ |
668 | /* for compatibility to the rest of the world */ |
|
|
669 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
670 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
671 | |
|
|
672 | /* count trailing zero bits and count # of one bits */ |
|
|
673 | #if ECB_GCC_VERSION(3,4) |
|
|
674 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
675 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
676 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
677 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
678 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
679 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
680 | /* no popcountll */ |
|
|
681 | #else |
|
|
682 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
683 | ecb_function_ int |
|
|
684 | ecb_ctz32 (uint32_t x) |
|
|
685 | { |
|
|
686 | int r = 0; |
|
|
687 | |
|
|
688 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
689 | |
|
|
690 | #if ECB_branchless_on_i386 |
|
|
691 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
692 | r += !!(x & 0xcccccccc) << 1; |
|
|
693 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
694 | r += !!(x & 0xff00ff00) << 3; |
|
|
695 | r += !!(x & 0xffff0000) << 4; |
|
|
696 | #else |
|
|
697 | if (x & 0xaaaaaaaa) r += 1; |
|
|
698 | if (x & 0xcccccccc) r += 2; |
|
|
699 | if (x & 0xf0f0f0f0) r += 4; |
|
|
700 | if (x & 0xff00ff00) r += 8; |
|
|
701 | if (x & 0xffff0000) r += 16; |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | return r; |
|
|
705 | } |
|
|
706 | |
|
|
707 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
708 | ecb_function_ int |
|
|
709 | ecb_ctz64 (uint64_t x) |
|
|
710 | { |
|
|
711 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
712 | return ecb_ctz32 (x >> shift) + shift; |
|
|
713 | } |
|
|
714 | |
|
|
715 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
716 | ecb_function_ int |
|
|
717 | ecb_popcount32 (uint32_t x) |
|
|
718 | { |
|
|
719 | x -= (x >> 1) & 0x55555555; |
|
|
720 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
721 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
722 | x *= 0x01010101; |
|
|
723 | |
|
|
724 | return x >> 24; |
|
|
725 | } |
|
|
726 | |
|
|
727 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
728 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
729 | { |
|
|
730 | int r = 0; |
|
|
731 | |
|
|
732 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
733 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
734 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
735 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
736 | if (x >> 1) { r += 1; } |
|
|
737 | |
|
|
738 | return r; |
|
|
739 | } |
|
|
740 | |
|
|
741 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
742 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
743 | { |
|
|
744 | int r = 0; |
|
|
745 | |
|
|
746 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
747 | |
|
|
748 | return r + ecb_ld32 (x); |
|
|
749 | } |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
753 | /* so for this version we are lazy */ |
|
|
754 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
755 | ecb_function_ int |
|
|
756 | ecb_popcount64 (uint64_t x) |
|
|
757 | { |
|
|
758 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
759 | } |
|
|
760 | |
|
|
761 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
762 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
763 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
764 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
765 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
766 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
767 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
768 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
769 | |
|
|
770 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
771 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
772 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
773 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
774 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
775 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
776 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
777 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
778 | |
|
|
779 | #if ECB_GCC_VERSION(4,3) |
|
|
780 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
781 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
782 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
783 | #else |
|
|
784 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
785 | ecb_function_ uint16_t |
|
|
786 | ecb_bswap16 (uint16_t x) |
|
|
787 | { |
|
|
788 | return ecb_rotl16 (x, 8); |
|
|
789 | } |
|
|
790 | |
|
|
791 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
792 | ecb_function_ uint32_t |
|
|
793 | ecb_bswap32 (uint32_t x) |
|
|
794 | { |
|
|
795 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
796 | } |
|
|
797 | |
|
|
798 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
799 | ecb_function_ uint64_t |
|
|
800 | ecb_bswap64 (uint64_t x) |
|
|
801 | { |
|
|
802 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
803 | } |
|
|
804 | #endif |
|
|
805 | |
|
|
806 | #if ECB_GCC_VERSION(4,5) |
|
|
807 | #define ecb_unreachable() __builtin_unreachable () |
|
|
808 | #else |
|
|
809 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
810 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
811 | ecb_function_ void ecb_unreachable (void) { } |
|
|
812 | #endif |
|
|
813 | |
|
|
814 | /* try to tell the compiler that some condition is definitely true */ |
|
|
815 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
816 | |
|
|
817 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
818 | ecb_function_ unsigned char |
|
|
819 | ecb_byteorder_helper (void) |
|
|
820 | { |
|
|
821 | const uint32_t u = 0x11223344; |
|
|
822 | return *(unsigned char *)&u; |
|
|
823 | } |
|
|
824 | |
|
|
825 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
826 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
827 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
828 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
829 | |
|
|
830 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
831 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
832 | #else |
|
|
833 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
834 | #endif |
|
|
835 | |
|
|
836 | #if ecb_cplusplus_does_not_suck |
|
|
837 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
838 | template<typename T, int N> |
|
|
839 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
840 | { |
|
|
841 | return N; |
|
|
842 | } |
|
|
843 | #else |
|
|
844 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
845 | #endif |
|
|
846 | |
|
|
847 | #endif |
|
|
848 | |
|
|
849 | /* ECB.H END */ |
572 | |
850 | |
573 | #define expect_false(cond) ecb_expect_false (cond) |
851 | #define expect_false(cond) ecb_expect_false (cond) |
574 | #define expect_true(cond) ecb_expect_true (cond) |
852 | #define expect_true(cond) ecb_expect_true (cond) |
575 | #define noinline ecb_noinline |
853 | #define noinline ecb_noinline |
576 | |
854 | |