… | |
… | |
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 | * |
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|
481 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
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 |
|
|
486 | * documentation and/or other materials provided with the distribution. |
|
|
487 | * |
|
|
488 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
489 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
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, |
|
|
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 | |
|
|
536 | /*****************************************************************************/ |
|
|
537 | |
|
|
538 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
539 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
540 | |
|
|
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
542 | #define ECB_MEMORY_FENCE do { } while (0) |
|
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543 | #endif |
|
|
544 | |
|
|
545 | #ifndef ECB_MEMORY_FENCE |
|
|
546 | #if ECB_GCC_VERSION(2,5) |
|
|
547 | #if __i386__ |
|
|
548 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
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549 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
550 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
551 | #elif __amd64 |
|
|
552 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
553 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
554 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
555 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
556 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
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557 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
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|
558 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) |
|
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559 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
560 | #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
561 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
563 | #endif |
|
|
564 | #endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | #ifndef ECB_MEMORY_FENCE |
|
|
568 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
|
|
569 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
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570 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
571 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
572 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
573 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
574 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
575 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
576 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
577 | #elif defined(_WIN32) |
|
|
578 | #include <WinNT.h> |
|
|
579 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
580 | #endif |
|
|
581 | #endif |
|
|
582 | |
|
|
583 | #ifndef ECB_MEMORY_FENCE |
|
|
584 | #if !ECB_AVOID_PTHREADS |
|
|
585 | /* |
|
|
586 | * if you get undefined symbol references to pthread_mutex_lock, |
|
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587 | * or failure to find pthread.h, then you should implement |
|
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588 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
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589 | * OR provide pthread.h and link against the posix thread library |
|
|
590 | * of your system. |
|
|
591 | */ |
|
|
592 | #include <pthread.h> |
|
|
593 | #define ECB_NEEDS_PTHREADS 1 |
|
|
594 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
595 | |
|
|
596 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
597 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
598 | #endif |
|
|
599 | #endif |
|
|
600 | |
|
|
601 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
602 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
603 | #endif |
|
|
604 | |
|
|
605 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
606 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
607 | #endif |
|
|
608 | |
|
|
609 | /*****************************************************************************/ |
|
|
610 | |
|
|
611 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
612 | |
487 | #if __cplusplus |
613 | #if __cplusplus |
488 | #define ecb_inline static inline |
614 | #define ecb_inline static inline |
489 | #elif ECB_GCC_VERSION(2,5) |
615 | #elif ECB_GCC_VERSION(2,5) |
490 | #define ecb_inline static __inline__ |
616 | #define ecb_inline static __inline__ |
491 | #elif ECB_C99 |
617 | #elif ECB_C99 |
492 | #define ecb_inline static inline |
618 | #define ecb_inline static inline |
493 | #else |
619 | #else |
494 | #define ecb_inline static |
620 | #define ecb_inline static |
495 | #endif |
621 | #endif |
496 | |
622 | |
497 | #ifndef ECB_MEMORY_FENCE |
|
|
498 | #if ECB_GCC_VERSION(2,5) |
623 | #if ECB_GCC_VERSION(3,3) |
499 | #if __x86 |
624 | #define ecb_restrict __restrict__ |
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
625 | #elif ECB_C99 |
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
626 | #define ecb_restrict restrict |
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
627 | #else |
503 | #elif __amd64 |
628 | #define ecb_restrict |
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
|
|
507 | #endif |
|
|
508 | #endif |
629 | #endif |
509 | #endif |
|
|
510 | |
630 | |
511 | #ifndef ECB_MEMORY_FENCE |
631 | typedef int ecb_bool; |
512 | #if ECB_GCC_VERSION(4,4) |
|
|
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
516 | #elif defined(_WIN32) && defined(MemoryBarrier) |
|
|
517 | #define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
518 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
519 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
520 | #endif |
|
|
521 | #endif |
|
|
522 | |
632 | |
523 | #ifndef ECB_MEMORY_FENCE |
633 | #define ECB_CONCAT_(a, b) a ## b |
524 | #include <pthread.h> |
634 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
635 | #define ECB_STRINGIFY_(a) # a |
|
|
636 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
525 | |
637 | |
526 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
638 | #define ecb_function_ ecb_inline |
527 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
528 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
529 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
530 | #endif |
|
|
531 | |
639 | |
532 | #if ECB_GCC_VERSION(3,1) |
640 | #if ECB_GCC_VERSION(3,1) |
533 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
641 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
534 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
642 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
535 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
643 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
… | |
… | |
539 | #define ecb_is_constant(expr) 0 |
647 | #define ecb_is_constant(expr) 0 |
540 | #define ecb_expect(expr,value) (expr) |
648 | #define ecb_expect(expr,value) (expr) |
541 | #define ecb_prefetch(addr,rw,locality) |
649 | #define ecb_prefetch(addr,rw,locality) |
542 | #endif |
650 | #endif |
543 | |
651 | |
|
|
652 | /* no emulation for ecb_decltype */ |
|
|
653 | #if ECB_GCC_VERSION(4,5) |
|
|
654 | #define ecb_decltype(x) __decltype(x) |
|
|
655 | #elif ECB_GCC_VERSION(3,0) |
|
|
656 | #define ecb_decltype(x) __typeof(x) |
|
|
657 | #endif |
|
|
658 | |
544 | #define ecb_noinline ecb_attribute ((__noinline__)) |
659 | #define ecb_noinline ecb_attribute ((__noinline__)) |
545 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
660 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
546 | #define ecb_unused ecb_attribute ((__unused__)) |
661 | #define ecb_unused ecb_attribute ((__unused__)) |
547 | #define ecb_const ecb_attribute ((__const__)) |
662 | #define ecb_const ecb_attribute ((__const__)) |
548 | #define ecb_pure ecb_attribute ((__pure__)) |
663 | #define ecb_pure ecb_attribute ((__pure__)) |
… | |
… | |
560 | /* put around conditional expressions if you are very sure that the */ |
675 | /* put around conditional expressions if you are very sure that the */ |
561 | /* expression is mostly true or mostly false. note that these return */ |
676 | /* expression is mostly true or mostly false. note that these return */ |
562 | /* booleans, not the expression. */ |
677 | /* booleans, not the expression. */ |
563 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
678 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
564 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
679 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
565 | /* ecb.h end */ |
680 | /* for compatibility to the rest of the world */ |
|
|
681 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
682 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
683 | |
|
|
684 | /* count trailing zero bits and count # of one bits */ |
|
|
685 | #if ECB_GCC_VERSION(3,4) |
|
|
686 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
687 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
688 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
689 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
690 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
691 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
692 | /* no popcountll */ |
|
|
693 | #else |
|
|
694 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
695 | ecb_function_ int |
|
|
696 | ecb_ctz32 (uint32_t x) |
|
|
697 | { |
|
|
698 | int r = 0; |
|
|
699 | |
|
|
700 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
701 | |
|
|
702 | #if ECB_branchless_on_i386 |
|
|
703 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
704 | r += !!(x & 0xcccccccc) << 1; |
|
|
705 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
706 | r += !!(x & 0xff00ff00) << 3; |
|
|
707 | r += !!(x & 0xffff0000) << 4; |
|
|
708 | #else |
|
|
709 | if (x & 0xaaaaaaaa) r += 1; |
|
|
710 | if (x & 0xcccccccc) r += 2; |
|
|
711 | if (x & 0xf0f0f0f0) r += 4; |
|
|
712 | if (x & 0xff00ff00) r += 8; |
|
|
713 | if (x & 0xffff0000) r += 16; |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | return r; |
|
|
717 | } |
|
|
718 | |
|
|
719 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
720 | ecb_function_ int |
|
|
721 | ecb_ctz64 (uint64_t x) |
|
|
722 | { |
|
|
723 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
724 | return ecb_ctz32 (x >> shift) + shift; |
|
|
725 | } |
|
|
726 | |
|
|
727 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
728 | ecb_function_ int |
|
|
729 | ecb_popcount32 (uint32_t x) |
|
|
730 | { |
|
|
731 | x -= (x >> 1) & 0x55555555; |
|
|
732 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
733 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
734 | x *= 0x01010101; |
|
|
735 | |
|
|
736 | return x >> 24; |
|
|
737 | } |
|
|
738 | |
|
|
739 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
740 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
741 | { |
|
|
742 | int r = 0; |
|
|
743 | |
|
|
744 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
745 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
746 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
747 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
748 | if (x >> 1) { r += 1; } |
|
|
749 | |
|
|
750 | return r; |
|
|
751 | } |
|
|
752 | |
|
|
753 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
754 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
755 | { |
|
|
756 | int r = 0; |
|
|
757 | |
|
|
758 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
759 | |
|
|
760 | return r + ecb_ld32 (x); |
|
|
761 | } |
|
|
762 | #endif |
|
|
763 | |
|
|
764 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
765 | /* so for this version we are lazy */ |
|
|
766 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
767 | ecb_function_ int |
|
|
768 | ecb_popcount64 (uint64_t x) |
|
|
769 | { |
|
|
770 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
771 | } |
|
|
772 | |
|
|
773 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
774 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
775 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
776 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
777 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
778 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
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|
779 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
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780 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
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781 | |
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782 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
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783 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
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784 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
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785 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
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786 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
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787 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
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788 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
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789 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
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790 | |
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791 | #if ECB_GCC_VERSION(4,3) |
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792 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
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793 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
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794 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
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795 | #else |
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796 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
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797 | ecb_function_ uint16_t |
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798 | ecb_bswap16 (uint16_t x) |
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|
799 | { |
|
|
800 | return ecb_rotl16 (x, 8); |
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801 | } |
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|
802 | |
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|
803 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
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804 | ecb_function_ uint32_t |
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805 | ecb_bswap32 (uint32_t x) |
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806 | { |
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807 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
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|
808 | } |
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809 | |
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|
810 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
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811 | ecb_function_ uint64_t |
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|
812 | ecb_bswap64 (uint64_t x) |
|
|
813 | { |
|
|
814 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
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|
815 | } |
|
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816 | #endif |
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|
817 | |
|
|
818 | #if ECB_GCC_VERSION(4,5) |
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|
819 | #define ecb_unreachable() __builtin_unreachable () |
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|
820 | #else |
|
|
821 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
822 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
823 | ecb_function_ void ecb_unreachable (void) { } |
|
|
824 | #endif |
|
|
825 | |
|
|
826 | /* try to tell the compiler that some condition is definitely true */ |
|
|
827 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
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|
828 | |
|
|
829 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
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|
830 | ecb_function_ unsigned char |
|
|
831 | ecb_byteorder_helper (void) |
|
|
832 | { |
|
|
833 | const uint32_t u = 0x11223344; |
|
|
834 | return *(unsigned char *)&u; |
|
|
835 | } |
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|
836 | |
|
|
837 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
838 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
839 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
840 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
841 | |
|
|
842 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
843 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
844 | #else |
|
|
845 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | #if ecb_cplusplus_does_not_suck |
|
|
849 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
850 | template<typename T, int N> |
|
|
851 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
852 | { |
|
|
853 | return N; |
|
|
854 | } |
|
|
855 | #else |
|
|
856 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #endif |
|
|
860 | |
|
|
861 | /* ECB.H END */ |
|
|
862 | |
|
|
863 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
864 | /* if your architetcure doesn't need memory fences, e.g. because it is |
|
|
865 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
866 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
867 | * libev, in which casess the memory fences become nops. |
|
|
868 | * alternatively, you can remove this #error and link against libpthread, |
|
|
869 | * which will then provide the memory fences. |
|
|
870 | */ |
|
|
871 | # error "memory fences not defined for your architecture, please report" |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #ifndef ECB_MEMORY_FENCE |
|
|
875 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
876 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
877 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
878 | #endif |
566 | |
879 | |
567 | #define expect_false(cond) ecb_expect_false (cond) |
880 | #define expect_false(cond) ecb_expect_false (cond) |
568 | #define expect_true(cond) ecb_expect_true (cond) |
881 | #define expect_true(cond) ecb_expect_true (cond) |
569 | #define noinline ecb_noinline |
882 | #define noinline ecb_noinline |
570 | |
883 | |
… | |
… | |
1470 | |
1783 | |
1471 | if (pipe_write_wanted) |
1784 | if (pipe_write_wanted) |
1472 | { |
1785 | { |
1473 | int old_errno; |
1786 | int old_errno; |
1474 | |
1787 | |
1475 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
1788 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
1476 | |
1789 | |
1477 | old_errno = errno; /* save errno because write will clobber it */ |
1790 | old_errno = errno; /* save errno because write will clobber it */ |
1478 | |
1791 | |
1479 | #if EV_USE_EVENTFD |
1792 | #if EV_USE_EVENTFD |
1480 | if (evfd >= 0) |
1793 | if (evfd >= 0) |
… | |
… | |
2612 | time_update (EV_A_ 1e100); |
2925 | time_update (EV_A_ 1e100); |
2613 | |
2926 | |
2614 | /* from now on, we want a pipe-wake-up */ |
2927 | /* from now on, we want a pipe-wake-up */ |
2615 | pipe_write_wanted = 1; |
2928 | pipe_write_wanted = 1; |
2616 | |
2929 | |
2617 | ECB_MEMORY_FENCE; /* amke sure pipe_write_wanted is visible before we check for potential skips */ |
2930 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
2618 | |
2931 | |
2619 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2932 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2620 | { |
2933 | { |
2621 | waittime = MAX_BLOCKTIME; |
2934 | waittime = MAX_BLOCKTIME; |
2622 | |
2935 | |
… | |
… | |
4024 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4337 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4025 | #endif |
4338 | #endif |
4026 | |
4339 | |
4027 | #if EV_IDLE_ENABLE |
4340 | #if EV_IDLE_ENABLE |
4028 | if (types & EV_IDLE) |
4341 | if (types & EV_IDLE) |
4029 | for (j = NUMPRI; i--; ) |
4342 | for (j = NUMPRI; j--; ) |
4030 | for (i = idlecnt [j]; i--; ) |
4343 | for (i = idlecnt [j]; i--; ) |
4031 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4344 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4032 | #endif |
4345 | #endif |
4033 | |
4346 | |
4034 | #if EV_FORK_ENABLE |
4347 | #if EV_FORK_ENABLE |