… | |
… | |
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 is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
470 | /* ECB.H BEGIN */ |
|
|
471 | /* |
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|
472 | * libecb - http://software.schmorp.de/pkg/libecb |
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473 | * |
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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, |
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482 | * this list of conditions and the following disclaimer. |
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483 | * |
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484 | * 2. Redistributions in binary form must reproduce the above copyright |
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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 | * |
|
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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 |
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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 | |
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|
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; |
469 | #if __GNUC__ >= 4 |
510 | #if __GNUC__ |
470 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
511 | typedef signed long long int64_t; |
471 | # define noinline __attribute__ ((noinline)) |
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 |
472 | #else |
517 | #else |
473 | # define expect(expr,value) (expr) |
518 | #include <inttypes.h> |
474 | # define noinline |
|
|
475 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
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476 | # define inline |
|
|
477 | # endif |
519 | #endif |
|
|
520 | |
|
|
521 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
522 | * what their idiot authors think are the "more important" extensions, |
|
|
523 | * causing enormous grief in return for some better fake benchmark numbers. |
|
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524 | * or so. |
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525 | * we try to detect these and simply assume they are not gcc - if they have |
|
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526 | * an issue with that they should have done it right in the first place. |
|
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527 | */ |
|
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528 | #ifndef ECB_GCC_VERSION |
|
|
529 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
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530 | #define ECB_GCC_VERSION(major,minor) 0 |
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531 | #else |
|
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532 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
478 | #endif |
533 | #endif |
|
|
534 | #endif |
479 | |
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 */ |
|
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540 | |
|
|
541 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
542 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
543 | #define ECB_MEMORY_FENCE_ACQUIRE do { } while (0) |
|
|
544 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) |
|
|
545 | #endif |
|
|
546 | |
|
|
547 | #ifndef ECB_MEMORY_FENCE |
|
|
548 | #if ECB_GCC_VERSION(2,5) |
|
|
549 | #if __x86 |
|
|
550 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
551 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
552 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
553 | #elif __amd64 |
|
|
554 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
555 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
556 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
557 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
559 | #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ |
|
|
560 | || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) \ |
|
|
561 | || defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ |
|
|
562 | || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) |
|
|
563 | #define ECB_MEMORY_FENCE \ |
|
|
564 | do { \ |
|
|
565 | int null = 0; \ |
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|
566 | __asm__ __volatile__ ("mcr p15,0,%0,c6,c10,5", : "=&r" (null) : : "memory"); \ |
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|
567 | while (0) |
|
|
568 | #endif |
|
|
569 | #endif |
|
|
570 | #endif |
|
|
571 | |
|
|
572 | #ifndef ECB_MEMORY_FENCE |
|
|
573 | #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) |
|
|
574 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
575 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
576 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
577 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
578 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
579 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
580 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
581 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
582 | #elif defined(_WIN32) |
|
|
583 | #include <WinNT.h> |
|
|
584 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
585 | #endif |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | #ifndef ECB_MEMORY_FENCE |
|
|
589 | #if !ECB_AVOID_PTHREADS |
|
|
590 | /* |
|
|
591 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
592 | * or failure to find pthread.h, then you should implement |
|
|
593 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
594 | * OR provide pthread.h and link against the posix thread library |
|
|
595 | * of your system. |
|
|
596 | */ |
|
|
597 | #include <pthread.h> |
|
|
598 | #define ECB_NEEDS_PTHREADS 1 |
|
|
599 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
600 | |
|
|
601 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
602 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
603 | #endif |
|
|
604 | #endif |
|
|
605 | |
|
|
606 | #if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) |
|
|
607 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) |
|
|
611 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | /*****************************************************************************/ |
|
|
615 | |
|
|
616 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
617 | |
|
|
618 | #if __cplusplus |
|
|
619 | #define ecb_inline static inline |
|
|
620 | #elif ECB_GCC_VERSION(2,5) |
|
|
621 | #define ecb_inline static __inline__ |
|
|
622 | #elif ECB_C99 |
|
|
623 | #define ecb_inline static inline |
|
|
624 | #else |
|
|
625 | #define ecb_inline static |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | #if ECB_GCC_VERSION(3,3) |
|
|
629 | #define ecb_restrict __restrict__ |
|
|
630 | #elif ECB_C99 |
|
|
631 | #define ecb_restrict restrict |
|
|
632 | #else |
|
|
633 | #define ecb_restrict |
|
|
634 | #endif |
|
|
635 | |
|
|
636 | typedef int ecb_bool; |
|
|
637 | |
|
|
638 | #define ECB_CONCAT_(a, b) a ## b |
|
|
639 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
640 | #define ECB_STRINGIFY_(a) # a |
|
|
641 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
642 | |
|
|
643 | #define ecb_function_ ecb_inline |
|
|
644 | |
|
|
645 | #if ECB_GCC_VERSION(3,1) |
|
|
646 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
647 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
648 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
649 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
650 | #else |
|
|
651 | #define ecb_attribute(attrlist) |
|
|
652 | #define ecb_is_constant(expr) 0 |
|
|
653 | #define ecb_expect(expr,value) (expr) |
|
|
654 | #define ecb_prefetch(addr,rw,locality) |
|
|
655 | #endif |
|
|
656 | |
|
|
657 | /* no emulation for ecb_decltype */ |
|
|
658 | #if ECB_GCC_VERSION(4,5) |
|
|
659 | #define ecb_decltype(x) __decltype(x) |
|
|
660 | #elif ECB_GCC_VERSION(3,0) |
|
|
661 | #define ecb_decltype(x) __typeof(x) |
|
|
662 | #endif |
|
|
663 | |
|
|
664 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
665 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
666 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
667 | #define ecb_const ecb_attribute ((__const__)) |
|
|
668 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
669 | |
|
|
670 | #if ECB_GCC_VERSION(4,3) |
|
|
671 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
672 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
673 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
674 | #else |
|
|
675 | #define ecb_artificial |
|
|
676 | #define ecb_hot |
|
|
677 | #define ecb_cold |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | /* put around conditional expressions if you are very sure that the */ |
|
|
681 | /* expression is mostly true or mostly false. note that these return */ |
|
|
682 | /* booleans, not the expression. */ |
480 | #define expect_false(expr) expect ((expr) != 0, 0) |
683 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
481 | #define expect_true(expr) expect ((expr) != 0, 1) |
684 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
685 | /* for compatibility to the rest of the world */ |
|
|
686 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
687 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
688 | |
|
|
689 | /* count trailing zero bits and count # of one bits */ |
|
|
690 | #if ECB_GCC_VERSION(3,4) |
|
|
691 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
692 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
693 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
694 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
695 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
696 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
697 | /* no popcountll */ |
|
|
698 | #else |
|
|
699 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
700 | ecb_function_ int |
|
|
701 | ecb_ctz32 (uint32_t x) |
|
|
702 | { |
|
|
703 | int r = 0; |
|
|
704 | |
|
|
705 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
706 | |
|
|
707 | #if ECB_branchless_on_i386 |
|
|
708 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
709 | r += !!(x & 0xcccccccc) << 1; |
|
|
710 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
711 | r += !!(x & 0xff00ff00) << 3; |
|
|
712 | r += !!(x & 0xffff0000) << 4; |
|
|
713 | #else |
|
|
714 | if (x & 0xaaaaaaaa) r += 1; |
|
|
715 | if (x & 0xcccccccc) r += 2; |
|
|
716 | if (x & 0xf0f0f0f0) r += 4; |
|
|
717 | if (x & 0xff00ff00) r += 8; |
|
|
718 | if (x & 0xffff0000) r += 16; |
|
|
719 | #endif |
|
|
720 | |
|
|
721 | return r; |
|
|
722 | } |
|
|
723 | |
|
|
724 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
725 | ecb_function_ int |
|
|
726 | ecb_ctz64 (uint64_t x) |
|
|
727 | { |
|
|
728 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
729 | return ecb_ctz32 (x >> shift) + shift; |
|
|
730 | } |
|
|
731 | |
|
|
732 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
733 | ecb_function_ int |
|
|
734 | ecb_popcount32 (uint32_t x) |
|
|
735 | { |
|
|
736 | x -= (x >> 1) & 0x55555555; |
|
|
737 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
738 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
739 | x *= 0x01010101; |
|
|
740 | |
|
|
741 | return x >> 24; |
|
|
742 | } |
|
|
743 | |
|
|
744 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
745 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
746 | { |
|
|
747 | int r = 0; |
|
|
748 | |
|
|
749 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
750 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
751 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
752 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
753 | if (x >> 1) { r += 1; } |
|
|
754 | |
|
|
755 | return r; |
|
|
756 | } |
|
|
757 | |
|
|
758 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
759 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
760 | { |
|
|
761 | int r = 0; |
|
|
762 | |
|
|
763 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
764 | |
|
|
765 | return r + ecb_ld32 (x); |
|
|
766 | } |
|
|
767 | #endif |
|
|
768 | |
|
|
769 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
770 | /* so for this version we are lazy */ |
|
|
771 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
772 | ecb_function_ int |
|
|
773 | ecb_popcount64 (uint64_t x) |
|
|
774 | { |
|
|
775 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
776 | } |
|
|
777 | |
|
|
778 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
779 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
780 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
781 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
782 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
783 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
784 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
785 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
786 | |
|
|
787 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
788 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
789 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
790 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
791 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
792 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
793 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
794 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
795 | |
|
|
796 | #if ECB_GCC_VERSION(4,3) |
|
|
797 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
798 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
799 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
800 | #else |
|
|
801 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
802 | ecb_function_ uint16_t |
|
|
803 | ecb_bswap16 (uint16_t x) |
|
|
804 | { |
|
|
805 | return ecb_rotl16 (x, 8); |
|
|
806 | } |
|
|
807 | |
|
|
808 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
809 | ecb_function_ uint32_t |
|
|
810 | ecb_bswap32 (uint32_t x) |
|
|
811 | { |
|
|
812 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
813 | } |
|
|
814 | |
|
|
815 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
816 | ecb_function_ uint64_t |
|
|
817 | ecb_bswap64 (uint64_t x) |
|
|
818 | { |
|
|
819 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
820 | } |
|
|
821 | #endif |
|
|
822 | |
|
|
823 | #if ECB_GCC_VERSION(4,5) |
|
|
824 | #define ecb_unreachable() __builtin_unreachable () |
|
|
825 | #else |
|
|
826 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
827 | ecb_function_ void ecb_unreachable (void) ecb_noreturn; |
|
|
828 | ecb_function_ void ecb_unreachable (void) { } |
|
|
829 | #endif |
|
|
830 | |
|
|
831 | /* try to tell the compiler that some condition is definitely true */ |
|
|
832 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
833 | |
|
|
834 | ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
835 | ecb_function_ unsigned char |
|
|
836 | ecb_byteorder_helper (void) |
|
|
837 | { |
|
|
838 | const uint32_t u = 0x11223344; |
|
|
839 | return *(unsigned char *)&u; |
|
|
840 | } |
|
|
841 | |
|
|
842 | ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; |
|
|
843 | ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
844 | ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; |
|
|
845 | ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
846 | |
|
|
847 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
848 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
849 | #else |
|
|
850 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
851 | #endif |
|
|
852 | |
|
|
853 | #if ecb_cplusplus_does_not_suck |
|
|
854 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
855 | template<typename T, int N> |
|
|
856 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
857 | { |
|
|
858 | return N; |
|
|
859 | } |
|
|
860 | #else |
|
|
861 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
862 | #endif |
|
|
863 | |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | /* ECB.H END */ |
|
|
867 | |
|
|
868 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
869 | # undef ECB_MEMORY_FENCE |
|
|
870 | # undef ECB_MEMORY_FENCE_ACQUIRE |
|
|
871 | # undef ECB_MEMORY_FENCE_RELEASE |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
875 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
876 | #define noinline ecb_noinline |
|
|
877 | |
482 | #define inline_size static inline |
878 | #define inline_size ecb_inline |
483 | |
879 | |
484 | #if EV_FEATURE_CODE |
880 | #if EV_FEATURE_CODE |
485 | # define inline_speed static inline |
881 | # define inline_speed ecb_inline |
486 | #else |
882 | #else |
487 | # define inline_speed static noinline |
883 | # define inline_speed static noinline |
488 | #endif |
884 | #endif |
489 | |
885 | |
490 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
886 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
581 | |
977 | |
582 | #ifdef __linux |
978 | #ifdef __linux |
583 | # include <sys/utsname.h> |
979 | # include <sys/utsname.h> |
584 | #endif |
980 | #endif |
585 | |
981 | |
586 | static unsigned int noinline |
982 | static unsigned int noinline ecb_cold |
587 | ev_linux_version (void) |
983 | ev_linux_version (void) |
588 | { |
984 | { |
589 | #ifdef __linux |
985 | #ifdef __linux |
590 | unsigned int v = 0; |
986 | unsigned int v = 0; |
591 | struct utsname buf; |
987 | struct utsname buf; |
… | |
… | |
620 | } |
1016 | } |
621 | |
1017 | |
622 | /*****************************************************************************/ |
1018 | /*****************************************************************************/ |
623 | |
1019 | |
624 | #if EV_AVOID_STDIO |
1020 | #if EV_AVOID_STDIO |
625 | static void noinline |
1021 | static void noinline ecb_cold |
626 | ev_printerr (const char *msg) |
1022 | ev_printerr (const char *msg) |
627 | { |
1023 | { |
628 | write (STDERR_FILENO, msg, strlen (msg)); |
1024 | write (STDERR_FILENO, msg, strlen (msg)); |
629 | } |
1025 | } |
630 | #endif |
1026 | #endif |
631 | |
1027 | |
632 | static void (*syserr_cb)(const char *msg); |
1028 | static void (*syserr_cb)(const char *msg); |
633 | |
1029 | |
634 | void |
1030 | void ecb_cold |
635 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1031 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
636 | { |
1032 | { |
637 | syserr_cb = cb; |
1033 | syserr_cb = cb; |
638 | } |
1034 | } |
639 | |
1035 | |
640 | static void noinline |
1036 | static void noinline ecb_cold |
641 | ev_syserr (const char *msg) |
1037 | ev_syserr (const char *msg) |
642 | { |
1038 | { |
643 | if (!msg) |
1039 | if (!msg) |
644 | msg = "(libev) system error"; |
1040 | msg = "(libev) system error"; |
645 | |
1041 | |
… | |
… | |
678 | #endif |
1074 | #endif |
679 | } |
1075 | } |
680 | |
1076 | |
681 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1077 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
682 | |
1078 | |
683 | void |
1079 | void ecb_cold |
684 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1080 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
685 | { |
1081 | { |
686 | alloc = cb; |
1082 | alloc = cb; |
687 | } |
1083 | } |
688 | |
1084 | |
… | |
… | |
897 | } |
1293 | } |
898 | |
1294 | |
899 | return ncur; |
1295 | return ncur; |
900 | } |
1296 | } |
901 | |
1297 | |
902 | static noinline void * |
1298 | static void * noinline ecb_cold |
903 | array_realloc (int elem, void *base, int *cur, int cnt) |
1299 | array_realloc (int elem, void *base, int *cur, int cnt) |
904 | { |
1300 | { |
905 | *cur = array_nextsize (elem, *cur, cnt); |
1301 | *cur = array_nextsize (elem, *cur, cnt); |
906 | return ev_realloc (base, elem * *cur); |
1302 | return ev_realloc (base, elem * *cur); |
907 | } |
1303 | } |
… | |
… | |
910 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1306 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
911 | |
1307 | |
912 | #define array_needsize(type,base,cur,cnt,init) \ |
1308 | #define array_needsize(type,base,cur,cnt,init) \ |
913 | if (expect_false ((cnt) > (cur))) \ |
1309 | if (expect_false ((cnt) > (cur))) \ |
914 | { \ |
1310 | { \ |
915 | int ocur_ = (cur); \ |
1311 | int ecb_unused ocur_ = (cur); \ |
916 | (base) = (type *)array_realloc \ |
1312 | (base) = (type *)array_realloc \ |
917 | (sizeof (type), (base), &(cur), (cnt)); \ |
1313 | (sizeof (type), (base), &(cur), (cnt)); \ |
918 | init ((base) + (ocur_), (cur) - ocur_); \ |
1314 | init ((base) + (ocur_), (cur) - ocur_); \ |
919 | } |
1315 | } |
920 | |
1316 | |
… | |
… | |
1090 | fdchanges [fdchangecnt - 1] = fd; |
1486 | fdchanges [fdchangecnt - 1] = fd; |
1091 | } |
1487 | } |
1092 | } |
1488 | } |
1093 | |
1489 | |
1094 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1490 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1095 | inline_speed void |
1491 | inline_speed void ecb_cold |
1096 | fd_kill (EV_P_ int fd) |
1492 | fd_kill (EV_P_ int fd) |
1097 | { |
1493 | { |
1098 | ev_io *w; |
1494 | ev_io *w; |
1099 | |
1495 | |
1100 | while ((w = (ev_io *)anfds [fd].head)) |
1496 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1103 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1499 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1104 | } |
1500 | } |
1105 | } |
1501 | } |
1106 | |
1502 | |
1107 | /* check whether the given fd is actually valid, for error recovery */ |
1503 | /* check whether the given fd is actually valid, for error recovery */ |
1108 | inline_size int |
1504 | inline_size int ecb_cold |
1109 | fd_valid (int fd) |
1505 | fd_valid (int fd) |
1110 | { |
1506 | { |
1111 | #ifdef _WIN32 |
1507 | #ifdef _WIN32 |
1112 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1508 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1113 | #else |
1509 | #else |
1114 | return fcntl (fd, F_GETFD) != -1; |
1510 | return fcntl (fd, F_GETFD) != -1; |
1115 | #endif |
1511 | #endif |
1116 | } |
1512 | } |
1117 | |
1513 | |
1118 | /* called on EBADF to verify fds */ |
1514 | /* called on EBADF to verify fds */ |
1119 | static void noinline |
1515 | static void noinline ecb_cold |
1120 | fd_ebadf (EV_P) |
1516 | fd_ebadf (EV_P) |
1121 | { |
1517 | { |
1122 | int fd; |
1518 | int fd; |
1123 | |
1519 | |
1124 | for (fd = 0; fd < anfdmax; ++fd) |
1520 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1126 | if (!fd_valid (fd) && errno == EBADF) |
1522 | if (!fd_valid (fd) && errno == EBADF) |
1127 | fd_kill (EV_A_ fd); |
1523 | fd_kill (EV_A_ fd); |
1128 | } |
1524 | } |
1129 | |
1525 | |
1130 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1526 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1131 | static void noinline |
1527 | static void noinline ecb_cold |
1132 | fd_enomem (EV_P) |
1528 | fd_enomem (EV_P) |
1133 | { |
1529 | { |
1134 | int fd; |
1530 | int fd; |
1135 | |
1531 | |
1136 | for (fd = anfdmax; fd--; ) |
1532 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1331 | |
1727 | |
1332 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
1333 | |
1729 | |
1334 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1730 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1335 | |
1731 | |
1336 | static void noinline |
1732 | static void noinline ecb_cold |
1337 | evpipe_init (EV_P) |
1733 | evpipe_init (EV_P) |
1338 | { |
1734 | { |
1339 | if (!ev_is_active (&pipe_w)) |
1735 | if (!ev_is_active (&pipe_w)) |
1340 | { |
1736 | { |
1341 | # if EV_USE_EVENTFD |
1737 | # if EV_USE_EVENTFD |
… | |
… | |
1363 | ev_io_start (EV_A_ &pipe_w); |
1759 | ev_io_start (EV_A_ &pipe_w); |
1364 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1760 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1365 | } |
1761 | } |
1366 | } |
1762 | } |
1367 | |
1763 | |
1368 | inline_size void |
1764 | inline_speed void |
1369 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1765 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1370 | { |
1766 | { |
1371 | if (!*flag) |
1767 | if (expect_true (*flag)) |
|
|
1768 | return; |
|
|
1769 | |
|
|
1770 | *flag = 1; |
|
|
1771 | |
|
|
1772 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1773 | |
|
|
1774 | pipe_write_skipped = 1; |
|
|
1775 | |
|
|
1776 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1777 | |
|
|
1778 | if (pipe_write_wanted) |
1372 | { |
1779 | { |
|
|
1780 | int old_errno; |
|
|
1781 | |
|
|
1782 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1783 | |
1373 | int old_errno = errno; /* save errno because write might clobber it */ |
1784 | old_errno = errno; /* save errno because write will clobber it */ |
1374 | char dummy; |
|
|
1375 | |
|
|
1376 | *flag = 1; |
|
|
1377 | |
1785 | |
1378 | #if EV_USE_EVENTFD |
1786 | #if EV_USE_EVENTFD |
1379 | if (evfd >= 0) |
1787 | if (evfd >= 0) |
1380 | { |
1788 | { |
1381 | uint64_t counter = 1; |
1789 | uint64_t counter = 1; |
1382 | write (evfd, &counter, sizeof (uint64_t)); |
1790 | write (evfd, &counter, sizeof (uint64_t)); |
1383 | } |
1791 | } |
1384 | else |
1792 | else |
1385 | #endif |
1793 | #endif |
|
|
1794 | { |
1386 | /* win32 people keep sending patches that change this write() to send() */ |
1795 | /* win32 people keep sending patches that change this write() to send() */ |
1387 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1796 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1388 | /* so when you think this write should be a send instead, please find out */ |
1797 | /* so when you think this write should be a send instead, please find out */ |
1389 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1798 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1390 | /* tell me. thank you. */ |
1799 | /* tell me. thank you. */ |
1391 | write (evpipe [1], &dummy, 1); |
1800 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1801 | } |
1392 | |
1802 | |
1393 | errno = old_errno; |
1803 | errno = old_errno; |
1394 | } |
1804 | } |
1395 | } |
1805 | } |
1396 | |
1806 | |
… | |
… | |
1399 | static void |
1809 | static void |
1400 | pipecb (EV_P_ ev_io *iow, int revents) |
1810 | pipecb (EV_P_ ev_io *iow, int revents) |
1401 | { |
1811 | { |
1402 | int i; |
1812 | int i; |
1403 | |
1813 | |
|
|
1814 | if (revents & EV_READ) |
|
|
1815 | { |
1404 | #if EV_USE_EVENTFD |
1816 | #if EV_USE_EVENTFD |
1405 | if (evfd >= 0) |
1817 | if (evfd >= 0) |
1406 | { |
1818 | { |
1407 | uint64_t counter; |
1819 | uint64_t counter; |
1408 | read (evfd, &counter, sizeof (uint64_t)); |
1820 | read (evfd, &counter, sizeof (uint64_t)); |
1409 | } |
1821 | } |
1410 | else |
1822 | else |
1411 | #endif |
1823 | #endif |
1412 | { |
1824 | { |
1413 | char dummy; |
1825 | char dummy; |
1414 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1826 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1415 | read (evpipe [0], &dummy, 1); |
1827 | read (evpipe [0], &dummy, 1); |
|
|
1828 | } |
1416 | } |
1829 | } |
|
|
1830 | |
|
|
1831 | pipe_write_skipped = 0; |
1417 | |
1832 | |
1418 | #if EV_SIGNAL_ENABLE |
1833 | #if EV_SIGNAL_ENABLE |
1419 | if (sig_pending) |
1834 | if (sig_pending) |
1420 | { |
1835 | { |
1421 | sig_pending = 0; |
1836 | sig_pending = 0; |
… | |
… | |
1450 | EV_P = signals [signum - 1].loop; |
1865 | EV_P = signals [signum - 1].loop; |
1451 | |
1866 | |
1452 | if (!EV_A) |
1867 | if (!EV_A) |
1453 | return; |
1868 | return; |
1454 | #endif |
1869 | #endif |
|
|
1870 | |
|
|
1871 | if (!ev_active (&pipe_w)) |
|
|
1872 | return; |
1455 | |
1873 | |
1456 | signals [signum - 1].pending = 1; |
1874 | signals [signum - 1].pending = 1; |
1457 | evpipe_write (EV_A_ &sig_pending); |
1875 | evpipe_write (EV_A_ &sig_pending); |
1458 | } |
1876 | } |
1459 | |
1877 | |
… | |
… | |
1591 | #endif |
2009 | #endif |
1592 | #if EV_USE_SELECT |
2010 | #if EV_USE_SELECT |
1593 | # include "ev_select.c" |
2011 | # include "ev_select.c" |
1594 | #endif |
2012 | #endif |
1595 | |
2013 | |
1596 | int |
2014 | int ecb_cold |
1597 | ev_version_major (void) |
2015 | ev_version_major (void) |
1598 | { |
2016 | { |
1599 | return EV_VERSION_MAJOR; |
2017 | return EV_VERSION_MAJOR; |
1600 | } |
2018 | } |
1601 | |
2019 | |
1602 | int |
2020 | int ecb_cold |
1603 | ev_version_minor (void) |
2021 | ev_version_minor (void) |
1604 | { |
2022 | { |
1605 | return EV_VERSION_MINOR; |
2023 | return EV_VERSION_MINOR; |
1606 | } |
2024 | } |
1607 | |
2025 | |
1608 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2026 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1609 | int inline_size |
2027 | int inline_size ecb_cold |
1610 | enable_secure (void) |
2028 | enable_secure (void) |
1611 | { |
2029 | { |
1612 | #ifdef _WIN32 |
2030 | #ifdef _WIN32 |
1613 | return 0; |
2031 | return 0; |
1614 | #else |
2032 | #else |
1615 | return getuid () != geteuid () |
2033 | return getuid () != geteuid () |
1616 | || getgid () != getegid (); |
2034 | || getgid () != getegid (); |
1617 | #endif |
2035 | #endif |
1618 | } |
2036 | } |
1619 | |
2037 | |
1620 | unsigned int |
2038 | unsigned int ecb_cold |
1621 | ev_supported_backends (void) |
2039 | ev_supported_backends (void) |
1622 | { |
2040 | { |
1623 | unsigned int flags = 0; |
2041 | unsigned int flags = 0; |
1624 | |
2042 | |
1625 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2043 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
1629 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2047 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1630 | |
2048 | |
1631 | return flags; |
2049 | return flags; |
1632 | } |
2050 | } |
1633 | |
2051 | |
1634 | unsigned int |
2052 | unsigned int ecb_cold |
1635 | ev_recommended_backends (void) |
2053 | ev_recommended_backends (void) |
1636 | { |
2054 | { |
1637 | unsigned int flags = ev_supported_backends (); |
2055 | unsigned int flags = ev_supported_backends (); |
1638 | |
2056 | |
1639 | #ifndef __NetBSD__ |
2057 | #ifndef __NetBSD__ |
… | |
… | |
1651 | #endif |
2069 | #endif |
1652 | |
2070 | |
1653 | return flags; |
2071 | return flags; |
1654 | } |
2072 | } |
1655 | |
2073 | |
1656 | unsigned int |
2074 | unsigned int ecb_cold |
1657 | ev_embeddable_backends (void) |
2075 | ev_embeddable_backends (void) |
1658 | { |
2076 | { |
1659 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2077 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1660 | |
2078 | |
1661 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2079 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
… | |
… | |
1706 | ev_userdata (EV_P) |
2124 | ev_userdata (EV_P) |
1707 | { |
2125 | { |
1708 | return userdata; |
2126 | return userdata; |
1709 | } |
2127 | } |
1710 | |
2128 | |
|
|
2129 | void |
1711 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2130 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1712 | { |
2131 | { |
1713 | invoke_cb = invoke_pending_cb; |
2132 | invoke_cb = invoke_pending_cb; |
1714 | } |
2133 | } |
1715 | |
2134 | |
|
|
2135 | void |
1716 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2136 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1717 | { |
2137 | { |
1718 | release_cb = release; |
2138 | release_cb = release; |
1719 | acquire_cb = acquire; |
2139 | acquire_cb = acquire; |
1720 | } |
2140 | } |
1721 | #endif |
2141 | #endif |
1722 | |
2142 | |
1723 | /* initialise a loop structure, must be zero-initialised */ |
2143 | /* initialise a loop structure, must be zero-initialised */ |
1724 | static void noinline |
2144 | static void noinline ecb_cold |
1725 | loop_init (EV_P_ unsigned int flags) |
2145 | loop_init (EV_P_ unsigned int flags) |
1726 | { |
2146 | { |
1727 | if (!backend) |
2147 | if (!backend) |
1728 | { |
2148 | { |
1729 | origflags = flags; |
2149 | origflags = flags; |
… | |
… | |
1757 | if (!(flags & EVFLAG_NOENV) |
2177 | if (!(flags & EVFLAG_NOENV) |
1758 | && !enable_secure () |
2178 | && !enable_secure () |
1759 | && getenv ("LIBEV_FLAGS")) |
2179 | && getenv ("LIBEV_FLAGS")) |
1760 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2180 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1761 | |
2181 | |
1762 | ev_rt_now = ev_time (); |
2182 | ev_rt_now = ev_time (); |
1763 | mn_now = get_clock (); |
2183 | mn_now = get_clock (); |
1764 | now_floor = mn_now; |
2184 | now_floor = mn_now; |
1765 | rtmn_diff = ev_rt_now - mn_now; |
2185 | rtmn_diff = ev_rt_now - mn_now; |
1766 | #if EV_FEATURE_API |
2186 | #if EV_FEATURE_API |
1767 | invoke_cb = ev_invoke_pending; |
2187 | invoke_cb = ev_invoke_pending; |
1768 | #endif |
2188 | #endif |
1769 | |
2189 | |
1770 | io_blocktime = 0.; |
2190 | io_blocktime = 0.; |
1771 | timeout_blocktime = 0.; |
2191 | timeout_blocktime = 0.; |
1772 | backend = 0; |
2192 | backend = 0; |
1773 | backend_fd = -1; |
2193 | backend_fd = -1; |
1774 | sig_pending = 0; |
2194 | sig_pending = 0; |
1775 | #if EV_ASYNC_ENABLE |
2195 | #if EV_ASYNC_ENABLE |
1776 | async_pending = 0; |
2196 | async_pending = 0; |
1777 | #endif |
2197 | #endif |
|
|
2198 | pipe_write_skipped = 0; |
|
|
2199 | pipe_write_wanted = 0; |
1778 | #if EV_USE_INOTIFY |
2200 | #if EV_USE_INOTIFY |
1779 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2201 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1780 | #endif |
2202 | #endif |
1781 | #if EV_USE_SIGNALFD |
2203 | #if EV_USE_SIGNALFD |
1782 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2204 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1783 | #endif |
2205 | #endif |
1784 | |
2206 | |
1785 | if (!(flags & EVBACKEND_MASK)) |
2207 | if (!(flags & EVBACKEND_MASK)) |
1786 | flags |= ev_recommended_backends (); |
2208 | flags |= ev_recommended_backends (); |
1787 | |
2209 | |
… | |
… | |
1812 | #endif |
2234 | #endif |
1813 | } |
2235 | } |
1814 | } |
2236 | } |
1815 | |
2237 | |
1816 | /* free up a loop structure */ |
2238 | /* free up a loop structure */ |
1817 | void |
2239 | void ecb_cold |
1818 | ev_loop_destroy (EV_P) |
2240 | ev_loop_destroy (EV_P) |
1819 | { |
2241 | { |
1820 | int i; |
2242 | int i; |
1821 | |
2243 | |
1822 | #if EV_MULTIPLICITY |
2244 | #if EV_MULTIPLICITY |
… | |
… | |
1952 | infy_fork (EV_A); |
2374 | infy_fork (EV_A); |
1953 | #endif |
2375 | #endif |
1954 | |
2376 | |
1955 | if (ev_is_active (&pipe_w)) |
2377 | if (ev_is_active (&pipe_w)) |
1956 | { |
2378 | { |
1957 | /* this "locks" the handlers against writing to the pipe */ |
2379 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1958 | /* while we modify the fd vars */ |
|
|
1959 | sig_pending = 1; |
|
|
1960 | #if EV_ASYNC_ENABLE |
|
|
1961 | async_pending = 1; |
|
|
1962 | #endif |
|
|
1963 | |
2380 | |
1964 | ev_ref (EV_A); |
2381 | ev_ref (EV_A); |
1965 | ev_io_stop (EV_A_ &pipe_w); |
2382 | ev_io_stop (EV_A_ &pipe_w); |
1966 | |
2383 | |
1967 | #if EV_USE_EVENTFD |
2384 | #if EV_USE_EVENTFD |
… | |
… | |
1985 | postfork = 0; |
2402 | postfork = 0; |
1986 | } |
2403 | } |
1987 | |
2404 | |
1988 | #if EV_MULTIPLICITY |
2405 | #if EV_MULTIPLICITY |
1989 | |
2406 | |
1990 | struct ev_loop * |
2407 | struct ev_loop * ecb_cold |
1991 | ev_loop_new (unsigned int flags) |
2408 | ev_loop_new (unsigned int flags) |
1992 | { |
2409 | { |
1993 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2410 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1994 | |
2411 | |
1995 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2412 | memset (EV_A, 0, sizeof (struct ev_loop)); |
… | |
… | |
2003 | } |
2420 | } |
2004 | |
2421 | |
2005 | #endif /* multiplicity */ |
2422 | #endif /* multiplicity */ |
2006 | |
2423 | |
2007 | #if EV_VERIFY |
2424 | #if EV_VERIFY |
2008 | static void noinline |
2425 | static void noinline ecb_cold |
2009 | verify_watcher (EV_P_ W w) |
2426 | verify_watcher (EV_P_ W w) |
2010 | { |
2427 | { |
2011 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2428 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2012 | |
2429 | |
2013 | if (w->pending) |
2430 | if (w->pending) |
2014 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2431 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2015 | } |
2432 | } |
2016 | |
2433 | |
2017 | static void noinline |
2434 | static void noinline ecb_cold |
2018 | verify_heap (EV_P_ ANHE *heap, int N) |
2435 | verify_heap (EV_P_ ANHE *heap, int N) |
2019 | { |
2436 | { |
2020 | int i; |
2437 | int i; |
2021 | |
2438 | |
2022 | for (i = HEAP0; i < N + HEAP0; ++i) |
2439 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
2027 | |
2444 | |
2028 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2445 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2029 | } |
2446 | } |
2030 | } |
2447 | } |
2031 | |
2448 | |
2032 | static void noinline |
2449 | static void noinline ecb_cold |
2033 | array_verify (EV_P_ W *ws, int cnt) |
2450 | array_verify (EV_P_ W *ws, int cnt) |
2034 | { |
2451 | { |
2035 | while (cnt--) |
2452 | while (cnt--) |
2036 | { |
2453 | { |
2037 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2454 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
2039 | } |
2456 | } |
2040 | } |
2457 | } |
2041 | #endif |
2458 | #endif |
2042 | |
2459 | |
2043 | #if EV_FEATURE_API |
2460 | #if EV_FEATURE_API |
2044 | void |
2461 | void ecb_cold |
2045 | ev_verify (EV_P) |
2462 | ev_verify (EV_P) |
2046 | { |
2463 | { |
2047 | #if EV_VERIFY |
2464 | #if EV_VERIFY |
2048 | int i; |
2465 | int i; |
2049 | WL w; |
2466 | WL w; |
… | |
… | |
2115 | #endif |
2532 | #endif |
2116 | } |
2533 | } |
2117 | #endif |
2534 | #endif |
2118 | |
2535 | |
2119 | #if EV_MULTIPLICITY |
2536 | #if EV_MULTIPLICITY |
2120 | struct ev_loop * |
2537 | struct ev_loop * ecb_cold |
2121 | #else |
2538 | #else |
2122 | int |
2539 | int |
2123 | #endif |
2540 | #endif |
2124 | ev_default_loop (unsigned int flags) |
2541 | ev_default_loop (unsigned int flags) |
2125 | { |
2542 | { |
… | |
… | |
2324 | } |
2741 | } |
2325 | } |
2742 | } |
2326 | |
2743 | |
2327 | /* simply recalculate all periodics */ |
2744 | /* simply recalculate all periodics */ |
2328 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2745 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2329 | static void noinline |
2746 | static void noinline ecb_cold |
2330 | periodics_reschedule (EV_P) |
2747 | periodics_reschedule (EV_P) |
2331 | { |
2748 | { |
2332 | int i; |
2749 | int i; |
2333 | |
2750 | |
2334 | /* adjust periodics after time jump */ |
2751 | /* adjust periodics after time jump */ |
… | |
… | |
2347 | reheap (periodics, periodiccnt); |
2764 | reheap (periodics, periodiccnt); |
2348 | } |
2765 | } |
2349 | #endif |
2766 | #endif |
2350 | |
2767 | |
2351 | /* adjust all timers by a given offset */ |
2768 | /* adjust all timers by a given offset */ |
2352 | static void noinline |
2769 | static void noinline ecb_cold |
2353 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2770 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2354 | { |
2771 | { |
2355 | int i; |
2772 | int i; |
2356 | |
2773 | |
2357 | for (i = 0; i < timercnt; ++i) |
2774 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2499 | ev_tstamp prev_mn_now = mn_now; |
2916 | ev_tstamp prev_mn_now = mn_now; |
2500 | |
2917 | |
2501 | /* update time to cancel out callback processing overhead */ |
2918 | /* update time to cancel out callback processing overhead */ |
2502 | time_update (EV_A_ 1e100); |
2919 | time_update (EV_A_ 1e100); |
2503 | |
2920 | |
|
|
2921 | /* from now on, we want a pipe-wake-up */ |
|
|
2922 | pipe_write_wanted = 1; |
|
|
2923 | |
|
|
2924 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2925 | |
2504 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2926 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2505 | { |
2927 | { |
2506 | waittime = MAX_BLOCKTIME; |
2928 | waittime = MAX_BLOCKTIME; |
2507 | |
2929 | |
2508 | if (timercnt) |
2930 | if (timercnt) |
2509 | { |
2931 | { |
… | |
… | |
2548 | ++loop_count; |
2970 | ++loop_count; |
2549 | #endif |
2971 | #endif |
2550 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2972 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2551 | backend_poll (EV_A_ waittime); |
2973 | backend_poll (EV_A_ waittime); |
2552 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2974 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2975 | |
|
|
2976 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2977 | |
|
|
2978 | if (pipe_write_skipped) |
|
|
2979 | { |
|
|
2980 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2981 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2982 | } |
|
|
2983 | |
2553 | |
2984 | |
2554 | /* update ev_rt_now, do magic */ |
2985 | /* update ev_rt_now, do magic */ |
2555 | time_update (EV_A_ waittime + sleeptime); |
2986 | time_update (EV_A_ waittime + sleeptime); |
2556 | } |
2987 | } |
2557 | |
2988 | |
… | |
… | |
3211 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3642 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3212 | ofs += sizeof (struct inotify_event) + ev->len; |
3643 | ofs += sizeof (struct inotify_event) + ev->len; |
3213 | } |
3644 | } |
3214 | } |
3645 | } |
3215 | |
3646 | |
3216 | inline_size void |
3647 | inline_size void ecb_cold |
3217 | ev_check_2625 (EV_P) |
3648 | ev_check_2625 (EV_P) |
3218 | { |
3649 | { |
3219 | /* kernels < 2.6.25 are borked |
3650 | /* kernels < 2.6.25 are borked |
3220 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3651 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3221 | */ |
3652 | */ |
… | |
… | |
3846 | } |
4277 | } |
3847 | |
4278 | |
3848 | /*****************************************************************************/ |
4279 | /*****************************************************************************/ |
3849 | |
4280 | |
3850 | #if EV_WALK_ENABLE |
4281 | #if EV_WALK_ENABLE |
3851 | void |
4282 | void ecb_cold |
3852 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4283 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
3853 | { |
4284 | { |
3854 | int i, j; |
4285 | int i, j; |
3855 | ev_watcher_list *wl, *wn; |
4286 | ev_watcher_list *wl, *wn; |
3856 | |
4287 | |
… | |
… | |
3900 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4331 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3901 | #endif |
4332 | #endif |
3902 | |
4333 | |
3903 | #if EV_IDLE_ENABLE |
4334 | #if EV_IDLE_ENABLE |
3904 | if (types & EV_IDLE) |
4335 | if (types & EV_IDLE) |
3905 | for (j = NUMPRI; i--; ) |
4336 | for (j = NUMPRI; j--; ) |
3906 | for (i = idlecnt [j]; i--; ) |
4337 | for (i = idlecnt [j]; i--; ) |
3907 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4338 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3908 | #endif |
4339 | #endif |
3909 | |
4340 | |
3910 | #if EV_FORK_ENABLE |
4341 | #if EV_FORK_ENABLE |