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Comparing libev/ev.c (file contents):
Revision 1.473 by root, Tue Sep 9 21:51:35 2014 UTC vs.
Revision 1.486 by root, Thu Oct 25 03:11:04 2018 UTC

162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
363 365
364#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 368#endif
367 369
368#ifdef ANDROID 370#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 372# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
493/* 495/*
494 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
495 * 497 *
496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved. 500 * All rights reserved.
499 * 501 *
500 * Redistribution and use in source and binary forms, with or without modifica- 502 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
532 534
533#ifndef ECB_H 535#ifndef ECB_H
534#define ECB_H 536#define ECB_H
535 537
536/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003 539#define ECB_VERSION 0x00010005
538 540
539#ifdef _WIN32 541#ifdef _WIN32
540 typedef signed char int8_t; 542 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 544 typedef signed short int16_t;
559 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
561 #endif 563 #endif
562#else 564#else
563 #include <inttypes.h> 565 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
566 #else 568 #else
567 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
568 #endif 570 #endif
569#endif 571#endif
570 572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
571/* work around x32 idiocy by defining proper macros */ 576/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
573 #if _ILP32 578 #if _ILP32
574 #define ECB_AMD64_X32 1 579 #define ECB_AMD64_X32 1
575 #else 580 #else
576 #define ECB_AMD64 1 581 #define ECB_AMD64 1
577 #endif 582 #endif
582 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
583 * or so. 588 * or so.
584 * we try to detect these and simply assume they are not gcc - if they have 589 * we try to detect these and simply assume they are not gcc - if they have
585 * an issue with that they should have done it right in the first place. 590 * an issue with that they should have done it right in the first place.
586 */ 591 */
587#ifndef ECB_GCC_VERSION
588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
589 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
590 #else 594#else
591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
592 #endif 596#endif
597
598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
599
600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
593#endif 610#endif
594 611
595#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
597 614
625 #define ECB_NO_SMP 1 642 #define ECB_NO_SMP 1
626#endif 643#endif
627 644
628#if ECB_NO_SMP 645#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0) 646 #define ECB_MEMORY_FENCE do { } while (0)
647#endif
648
649/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
650#if __xlC__ && ECB_CPP
651 #include <builtins.h>
652#endif
653
654#if 1400 <= _MSC_VER
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
630#endif 656#endif
631 657
632#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #if __i386 || __i386__ 660 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 664 #elif ECB_GCC_AMD64
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
673 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
674 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
675 || defined __ARM_ARCH_5TEJ__
676 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__ 684 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8 686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 688 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 689 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__ 690 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
681 /* see comment below (stdatomic.h) about the C11 memory model. */ 715 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
685 719
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 720 #elif ECB_CLANG_EXTENSION(c_atomic)
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model. 721 /* see comment below (stdatomic.h) about the C11 memory model. */
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */
696 725
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize () 727 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 728 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 729 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif 793#endif
765 794
766/*****************************************************************************/ 795/*****************************************************************************/
767 796
768#if __cplusplus 797#if ECB_CPP
769 #define ecb_inline static inline 798 #define ecb_inline static inline
770#elif ECB_GCC_VERSION(2,5) 799#elif ECB_GCC_VERSION(2,5)
771 #define ecb_inline static __inline__ 800 #define ecb_inline static __inline__
772#elif ECB_C99 801#elif ECB_C99
773 #define ecb_inline static inline 802 #define ecb_inline static inline
787 816
788#define ECB_CONCAT_(a, b) a ## b 817#define ECB_CONCAT_(a, b) a ## b
789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 818#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a 819#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 820#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
821#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
792 822
793#define ecb_function_ ecb_inline 823#define ecb_function_ ecb_inline
794 824
795#if ECB_GCC_VERSION(3,1) 825#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
796 #define ecb_attribute(attrlist) __attribute__(attrlist) 826 #define ecb_attribute(attrlist) __attribute__ (attrlist)
827#else
828 #define ecb_attribute(attrlist)
829#endif
830
831#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
797 #define ecb_is_constant(expr) __builtin_constant_p (expr) 832 #define ecb_is_constant(expr) __builtin_constant_p (expr)
798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
800#else 833#else
801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types 834 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 835 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ 836 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806 837
807 #define ecb_is_constant(expr) 0 838 #define ecb_is_constant(expr) 0
839#endif
840
841#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
842 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
843#else
808 #define ecb_expect(expr,value) (expr) 844 #define ecb_expect(expr,value) (expr)
845#endif
846
847#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
848 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
849#else
809 #define ecb_prefetch(addr,rw,locality) 850 #define ecb_prefetch(addr,rw,locality)
810#endif 851#endif
811 852
812/* no emulation for ecb_decltype */ 853/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5) 854#if ECB_CPP11
855 // older implementations might have problems with decltype(x)::type, work around it
856 template<class T> struct ecb_decltype_t { typedef T type; };
814 #define ecb_decltype(x) __decltype(x) 857 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
815#elif ECB_GCC_VERSION(3,0) 858#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
816 #define ecb_decltype(x) __typeof(x) 859 #define ecb_decltype(x) __typeof__ (x)
817#endif 860#endif
818 861
819#if _MSC_VER >= 1300 862#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated) 863 #define ecb_deprecated __declspec (deprecated)
821#else 864#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__)) 865 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif 866#endif
824 867
868#if _MSC_VER >= 1500
869 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
870#elif ECB_GCC_VERSION(4,5)
871 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
872#else
873 #define ecb_deprecated_message(msg) ecb_deprecated
874#endif
875
876#if _MSC_VER >= 1400
877 #define ecb_noinline __declspec (noinline)
878#else
825#define ecb_noinline ecb_attribute ((__noinline__)) 879 #define ecb_noinline ecb_attribute ((__noinline__))
880#endif
881
826#define ecb_unused ecb_attribute ((__unused__)) 882#define ecb_unused ecb_attribute ((__unused__))
827#define ecb_const ecb_attribute ((__const__)) 883#define ecb_const ecb_attribute ((__const__))
828#define ecb_pure ecb_attribute ((__pure__)) 884#define ecb_pure ecb_attribute ((__pure__))
829 885
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */ 886#if ECB_C11 || __IBMC_NORETURN
831#if ECB_C11 887 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
832 #define ecb_noreturn _Noreturn 888 #define ecb_noreturn _Noreturn
889#elif ECB_CPP11
890 #define ecb_noreturn [[noreturn]]
891#elif _MSC_VER >= 1200
892 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
893 #define ecb_noreturn __declspec (noreturn)
833#else 894#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__)) 895 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif 896#endif
836 897
837#if ECB_GCC_VERSION(4,3) 898#if ECB_GCC_VERSION(4,3)
852/* for compatibility to the rest of the world */ 913/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr) 914#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr) 915#define ecb_unlikely(expr) ecb_expect_false (expr)
855 916
856/* count trailing zero bits and count # of one bits */ 917/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4) 918#if ECB_GCC_VERSION(3,4) \
919 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
920 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
921 && ECB_CLANG_BUILTIN(__builtin_popcount))
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 922 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 923 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 924 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x) 925 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x) 926 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x) 927 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */ 928 /* no popcountll */
865#else 929#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
867 ecb_function_ int 931 ecb_function_ ecb_const int
868 ecb_ctz32 (uint32_t x) 932 ecb_ctz32 (uint32_t x)
869 { 933 {
934#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
935 unsigned long r;
936 _BitScanForward (&r, x);
937 return (int)r;
938#else
870 int r = 0; 939 int r = 0;
871 940
872 x &= ~x + 1; /* this isolates the lowest bit */ 941 x &= ~x + 1; /* this isolates the lowest bit */
873 942
874#if ECB_branchless_on_i386 943#if ECB_branchless_on_i386
884 if (x & 0xff00ff00) r += 8; 953 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16; 954 if (x & 0xffff0000) r += 16;
886#endif 955#endif
887 956
888 return r; 957 return r;
958#endif
889 } 959 }
890 960
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
892 ecb_function_ int 962 ecb_function_ ecb_const int
893 ecb_ctz64 (uint64_t x) 963 ecb_ctz64 (uint64_t x)
894 { 964 {
965#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
966 unsigned long r;
967 _BitScanForward64 (&r, x);
968 return (int)r;
969#else
895 int shift = x & 0xffffffffU ? 0 : 32; 970 int shift = x & 0xffffffff ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift; 971 return ecb_ctz32 (x >> shift) + shift;
972#endif
897 } 973 }
898 974
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
900 ecb_function_ int 976 ecb_function_ ecb_const int
901 ecb_popcount32 (uint32_t x) 977 ecb_popcount32 (uint32_t x)
902 { 978 {
903 x -= (x >> 1) & 0x55555555; 979 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 980 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f; 981 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101; 982 x *= 0x01010101;
907 983
908 return x >> 24; 984 return x >> 24;
909 } 985 }
910 986
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
912 ecb_function_ int ecb_ld32 (uint32_t x) 988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
913 { 989 {
990#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
991 unsigned long r;
992 _BitScanReverse (&r, x);
993 return (int)r;
994#else
914 int r = 0; 995 int r = 0;
915 996
916 if (x >> 16) { x >>= 16; r += 16; } 997 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; } 998 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; } 999 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; } 1000 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; } 1001 if (x >> 1) { r += 1; }
921 1002
922 return r; 1003 return r;
1004#endif
923 } 1005 }
924 1006
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
926 ecb_function_ int ecb_ld64 (uint64_t x) 1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
927 { 1009 {
1010#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1011 unsigned long r;
1012 _BitScanReverse64 (&r, x);
1013 return (int)r;
1014#else
928 int r = 0; 1015 int r = 0;
929 1016
930 if (x >> 32) { x >>= 32; r += 32; } 1017 if (x >> 32) { x >>= 32; r += 32; }
931 1018
932 return r + ecb_ld32 (x); 1019 return r + ecb_ld32 (x);
1020#endif
933 } 1021 }
934#endif 1022#endif
935 1023
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1024ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1025ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1026ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } 1027ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940 1028
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1029ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1030ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
943{ 1031{
944 return ( (x * 0x0802U & 0x22110U) 1032 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1033 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946} 1034}
947 1035
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1036ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1037ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
950{ 1038{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1039 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1040 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1041 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8); 1042 x = ( x >> 8 ) | ( x << 8);
955 1043
956 return x; 1044 return x;
957} 1045}
958 1046
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1047ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1048ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
961{ 1049{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1050 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1051 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1053 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
968 return x; 1056 return x;
969} 1057}
970 1058
971/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1059/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */ 1060/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1061ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
974ecb_function_ int 1062ecb_function_ ecb_const int
975ecb_popcount64 (uint64_t x) 1063ecb_popcount64 (uint64_t x)
976{ 1064{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1065 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978} 1066}
979 1067
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1068ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1069ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1070ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1071ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1072ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1073ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1074ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1075ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
988 1076
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1077ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1078ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1079ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1080ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1081ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1082ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1083ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1084ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997 1085
998#if ECB_GCC_VERSION(4,3) 1086#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088 #define ecb_bswap16(x) __builtin_bswap16 (x)
1089 #else
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1091 #endif
1000 #define ecb_bswap32(x) __builtin_bswap32 (x) 1092 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x) 1093 #define ecb_bswap64(x) __builtin_bswap64 (x)
1094#elif _MSC_VER
1095 #include <stdlib.h>
1096 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1097 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1098 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1002#else 1099#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1100 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1004 ecb_function_ uint16_t 1101 ecb_function_ ecb_const uint16_t
1005 ecb_bswap16 (uint16_t x) 1102 ecb_bswap16 (uint16_t x)
1006 { 1103 {
1007 return ecb_rotl16 (x, 8); 1104 return ecb_rotl16 (x, 8);
1008 } 1105 }
1009 1106
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1107 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1011 ecb_function_ uint32_t 1108 ecb_function_ ecb_const uint32_t
1012 ecb_bswap32 (uint32_t x) 1109 ecb_bswap32 (uint32_t x)
1013 { 1110 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1111 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 } 1112 }
1016 1113
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1114 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1018 ecb_function_ uint64_t 1115 ecb_function_ ecb_const uint64_t
1019 ecb_bswap64 (uint64_t x) 1116 ecb_bswap64 (uint64_t x)
1020 { 1117 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1118 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 } 1119 }
1023#endif 1120#endif
1024 1121
1025#if ECB_GCC_VERSION(4,5) 1122#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1026 #define ecb_unreachable() __builtin_unreachable () 1123 #define ecb_unreachable() __builtin_unreachable ()
1027#else 1124#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1125 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1126 ecb_inline ecb_noreturn void ecb_unreachable (void);
1030 ecb_inline void ecb_unreachable (void) { } 1127 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1031#endif 1128#endif
1032 1129
1033/* try to tell the compiler that some condition is definitely true */ 1130/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035 1132
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1037ecb_inline unsigned char 1134ecb_inline ecb_const uint32_t
1038ecb_byteorder_helper (void) 1135ecb_byteorder_helper (void)
1039{ 1136{
1040 /* the union code still generates code under pressure in gcc, */ 1137 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */ 1138 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */ 1139 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */ 1140 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */ 1141 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */ 1142 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1143#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1144 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1145 #define ECB_LITTLE_ENDIAN 1
1049 return 0x44; 1146 return 0x44332211;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1147#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1148 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1149 #define ECB_BIG_ENDIAN 1
1051 return 0x11; 1150 return 0x11223344;
1052#else 1151#else
1053 union 1152 union
1054 { 1153 {
1154 uint8_t c[4];
1055 uint32_t i; 1155 uint32_t u;
1056 uint8_t c;
1057 } u = { 0x11223344 }; 1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1058 return u.c; 1157 return u.u;
1059#endif 1158#endif
1060} 1159}
1061 1160
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1066 1165
1067#if ECB_GCC_VERSION(3,0) || ECB_C99 1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else 1168#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif 1170#endif
1072 1171
1073#if __cplusplus 1172#if ECB_CPP
1074 template<typename T> 1173 template<typename T>
1075 static inline T ecb_div_rd (T val, T div) 1174 static inline T ecb_div_rd (T val, T div)
1076 { 1175 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1176 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 } 1177 }
1095 } 1194 }
1096#else 1195#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif 1197#endif
1099 1198
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x)
1202{
1203 unsigned int s = (x & 0x8000) << (31 - 15);
1204 int e = (x >> 10) & 0x001f;
1205 unsigned int m = x & 0x03ff;
1206
1207 if (ecb_expect_false (e == 31))
1208 /* infinity or NaN */
1209 e = 255 - (127 - 15);
1210 else if (ecb_expect_false (!e))
1211 {
1212 if (ecb_expect_true (!m))
1213 /* zero, handled by code below by forcing e to 0 */
1214 e = 0 - (127 - 15);
1215 else
1216 {
1217 /* subnormal, renormalise */
1218 unsigned int s = 10 - ecb_ld32 (m);
1219
1220 m = (m << s) & 0x3ff; /* mask implicit bit */
1221 e -= s - 1;
1222 }
1223 }
1224
1225 /* e and m now are normalised, or zero, (or inf or nan) */
1226 e += 127 - 15;
1227
1228 return s | (e << 23) | (m << (23 - 10));
1229}
1230
1231ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1232ecb_function_ ecb_const uint16_t
1233ecb_binary32_to_binary16 (uint32_t x)
1234{
1235 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1236 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1237 unsigned int m = x & 0x007fffff;
1238
1239 x &= 0x7fffffff;
1240
1241 /* if it's within range of binary16 normals, use fast path */
1242 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1243 {
1244 /* mantissa round-to-even */
1245 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1246
1247 /* handle overflow */
1248 if (ecb_expect_false (m >= 0x00800000))
1249 {
1250 m >>= 1;
1251 e += 1;
1252 }
1253
1254 return s | (e << 10) | (m >> (23 - 10));
1255 }
1256
1257 /* handle large numbers and infinity */
1258 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1259 return s | 0x7c00;
1260
1261 /* handle zero, subnormals and small numbers */
1262 if (ecb_expect_true (x < 0x38800000))
1263 {
1264 /* zero */
1265 if (ecb_expect_true (!x))
1266 return s;
1267
1268 /* handle subnormals */
1269
1270 /* too small, will be zero */
1271 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1272 return s;
1273
1274 m |= 0x00800000; /* make implicit bit explicit */
1275
1276 /* very tricky - we need to round to the nearest e (+10) bit value */
1277 {
1278 unsigned int bits = 14 - e;
1279 unsigned int half = (1 << (bits - 1)) - 1;
1280 unsigned int even = (m >> bits) & 1;
1281
1282 /* if this overflows, we will end up with a normalised number */
1283 m = (m + half + even) >> bits;
1284 }
1285
1286 return s | m;
1287 }
1288
1289 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1290 m >>= 13;
1291
1292 return s | 0x7c00 | m | !m;
1293}
1294
1100/*******************************************************************************/ 1295/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102 1297
1103/* basically, everything uses "ieee pure-endian" floating point numbers */ 1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1299/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \ 1300#if 0 \
1106 || __i386 || __i386__ \ 1301 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1302 || ECB_GCC_AMD64 \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1303 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \ 1304 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \ 1305 || defined __mips__ \
1111 || defined __alpha__ \ 1306 || defined __alpha__ \
1112 || defined __hppa__ \ 1307 || defined __hppa__ \
1113 || defined __ia64__ \ 1308 || defined __ia64__ \
1114 || defined __m68k__ \ 1309 || defined __m68k__ \
1115 || defined __m88k__ \ 1310 || defined __m88k__ \
1116 || defined __sh__ \ 1311 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1313 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__ 1314 || defined __aarch64__
1120 #define ECB_STDFP 1 1315 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */ 1316 #include <string.h> /* for memcpy */
1122#else 1317#else
1138 #define ECB_NAN NAN 1333 #define ECB_NAN NAN
1139 #else 1334 #else
1140 #define ECB_NAN ECB_INFINITY 1335 #define ECB_NAN ECB_INFINITY
1141 #endif 1336 #endif
1142 1337
1143 /* converts an ieee half/binary16 to a float */ 1338 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1339 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1145 ecb_function_ float 1340 #define ecb_frexpf(x,e) frexpf ((x), (e))
1146 ecb_binary16_to_float (uint16_t x) 1341 #else
1147 { 1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1148 int e = (x >> 10) & 0x1f; 1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1149 int m = x & 0x3ff; 1344 #endif
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159 1345
1160 /* convert a float to ieee single/binary32 */ 1346 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1347 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1162 ecb_function_ uint32_t 1348 ecb_function_ ecb_const uint32_t
1163 ecb_float_to_binary32 (float x) 1349 ecb_float_to_binary32 (float x)
1164 { 1350 {
1165 uint32_t r; 1351 uint32_t r;
1166 1352
1167 #if ECB_STDFP 1353 #if ECB_STDFP
1174 if (x == 0e0f ) return 0x00000000U; 1360 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1361 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1362 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU; 1363 if (x != x ) return 0x7fbfffffU;
1178 1364
1179 m = frexpf (x, &e) * 0x1000000U; 1365 m = ecb_frexpf (x, &e) * 0x1000000U;
1180 1366
1181 r = m & 0x80000000U; 1367 r = m & 0x80000000U;
1182 1368
1183 if (r) 1369 if (r)
1184 m = -m; 1370 m = -m;
1196 1382
1197 return r; 1383 return r;
1198 } 1384 }
1199 1385
1200 /* converts an ieee single/binary32 to a float */ 1386 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; 1387 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1202 ecb_function_ float 1388 ecb_function_ ecb_const float
1203 ecb_binary32_to_float (uint32_t x) 1389 ecb_binary32_to_float (uint32_t x)
1204 { 1390 {
1205 float r; 1391 float r;
1206 1392
1207 #if ECB_STDFP 1393 #if ECB_STDFP
1217 x |= 0x800000U; 1403 x |= 0x800000U;
1218 else 1404 else
1219 e = 1; 1405 e = 1;
1220 1406
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ 1407 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1408 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1223 1409
1224 r = neg ? -r : r; 1410 r = neg ? -r : r;
1225 #endif 1411 #endif
1226 1412
1227 return r; 1413 return r;
1228 } 1414 }
1229 1415
1230 /* convert a double to ieee double/binary64 */ 1416 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; 1417 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1232 ecb_function_ uint64_t 1418 ecb_function_ ecb_const uint64_t
1233 ecb_double_to_binary64 (double x) 1419 ecb_double_to_binary64 (double x)
1234 { 1420 {
1235 uint64_t r; 1421 uint64_t r;
1236 1422
1237 #if ECB_STDFP 1423 #if ECB_STDFP
1266 1452
1267 return r; 1453 return r;
1268 } 1454 }
1269 1455
1270 /* converts an ieee double/binary64 to a double */ 1456 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; 1457 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1272 ecb_function_ double 1458 ecb_function_ ecb_const double
1273 ecb_binary64_to_double (uint64_t x) 1459 ecb_binary64_to_double (uint64_t x)
1274 { 1460 {
1275 double r; 1461 double r;
1276 1462
1277 #if ECB_STDFP 1463 #if ECB_STDFP
1293 1479
1294 r = neg ? -r : r; 1480 r = neg ? -r : r;
1295 #endif 1481 #endif
1296 1482
1297 return r; 1483 return r;
1484 }
1485
1486 /* convert a float to ieee half/binary16 */
1487 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1488 ecb_function_ ecb_const uint16_t
1489 ecb_float_to_binary16 (float x)
1490 {
1491 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1492 }
1493
1494 /* convert an ieee half/binary16 to float */
1495 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1496 ecb_function_ ecb_const float
1497 ecb_binary16_to_float (uint16_t x)
1498 {
1499 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1298 } 1500 }
1299 1501
1300#endif 1502#endif
1301 1503
1302#endif 1504#endif
1327#define inline_size ecb_inline 1529#define inline_size ecb_inline
1328 1530
1329#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
1330# define inline_speed ecb_inline 1532# define inline_speed ecb_inline
1331#else 1533#else
1332# define inline_speed static noinline 1534# define inline_speed noinline static
1333#endif 1535#endif
1334 1536
1335#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1336 1538
1337#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
1384#else 1586#else
1385 1587
1386#include <float.h> 1588#include <float.h>
1387 1589
1388/* a floor() replacement function, should be independent of ev_tstamp type */ 1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1389static ev_tstamp noinline 1592static ev_tstamp
1390ev_floor (ev_tstamp v) 1593ev_floor (ev_tstamp v)
1391{ 1594{
1392 /* the choice of shift factor is not terribly important */ 1595 /* the choice of shift factor is not terribly important */
1393#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1394 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1426 1629
1427#ifdef __linux 1630#ifdef __linux
1428# include <sys/utsname.h> 1631# include <sys/utsname.h>
1429#endif 1632#endif
1430 1633
1431static unsigned int noinline ecb_cold 1634noinline ecb_cold
1635static unsigned int
1432ev_linux_version (void) 1636ev_linux_version (void)
1433{ 1637{
1434#ifdef __linux 1638#ifdef __linux
1435 unsigned int v = 0; 1639 unsigned int v = 0;
1436 struct utsname buf; 1640 struct utsname buf;
1465} 1669}
1466 1670
1467/*****************************************************************************/ 1671/*****************************************************************************/
1468 1672
1469#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
1470static void noinline ecb_cold 1674noinline ecb_cold
1675static void
1471ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
1472{ 1677{
1473 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
1474} 1679}
1475#endif 1680#endif
1476 1681
1477static void (*syserr_cb)(const char *msg) EV_THROW; 1682static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1478 1683
1479void ecb_cold 1684ecb_cold
1685void
1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1481{ 1687{
1482 syserr_cb = cb; 1688 syserr_cb = cb;
1483} 1689}
1484 1690
1485static void noinline ecb_cold 1691noinline ecb_cold
1692static void
1486ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
1487{ 1694{
1488 if (!msg) 1695 if (!msg)
1489 msg = "(libev) system error"; 1696 msg = "(libev) system error";
1490 1697
1503 abort (); 1710 abort ();
1504 } 1711 }
1505} 1712}
1506 1713
1507static void * 1714static void *
1508ev_realloc_emul (void *ptr, long size) EV_THROW 1715ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1509{ 1716{
1510 /* some systems, notably openbsd and darwin, fail to properly 1717 /* some systems, notably openbsd and darwin, fail to properly
1511 * implement realloc (x, 0) (as required by both ansi c-89 and 1718 * implement realloc (x, 0) (as required by both ansi c-89 and
1512 * the single unix specification, so work around them here. 1719 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it, 1720 * recently, also (at least) fedora and debian started breaking it,
1519 1726
1520 free (ptr); 1727 free (ptr);
1521 return 0; 1728 return 0;
1522} 1729}
1523 1730
1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1525 1732
1526void ecb_cold 1733ecb_cold
1734void
1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1528{ 1736{
1529 alloc = cb; 1737 alloc = cb;
1530} 1738}
1531 1739
1532inline_speed void * 1740inline_speed void *
1649 1857
1650/*****************************************************************************/ 1858/*****************************************************************************/
1651 1859
1652#ifndef EV_HAVE_EV_TIME 1860#ifndef EV_HAVE_EV_TIME
1653ev_tstamp 1861ev_tstamp
1654ev_time (void) EV_THROW 1862ev_time (void) EV_NOEXCEPT
1655{ 1863{
1656#if EV_USE_REALTIME 1864#if EV_USE_REALTIME
1657 if (expect_true (have_realtime)) 1865 if (expect_true (have_realtime))
1658 { 1866 {
1659 struct timespec ts; 1867 struct timespec ts;
1683 return ev_time (); 1891 return ev_time ();
1684} 1892}
1685 1893
1686#if EV_MULTIPLICITY 1894#if EV_MULTIPLICITY
1687ev_tstamp 1895ev_tstamp
1688ev_now (EV_P) EV_THROW 1896ev_now (EV_P) EV_NOEXCEPT
1689{ 1897{
1690 return ev_rt_now; 1898 return ev_rt_now;
1691} 1899}
1692#endif 1900#endif
1693 1901
1694void 1902void
1695ev_sleep (ev_tstamp delay) EV_THROW 1903ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1696{ 1904{
1697 if (delay > 0.) 1905 if (delay > 0.)
1698 { 1906 {
1699#if EV_USE_NANOSLEEP 1907#if EV_USE_NANOSLEEP
1700 struct timespec ts; 1908 struct timespec ts;
1701 1909
1702 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
1703 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
1704#elif defined _WIN32 1912#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */
1705 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
1706#else 1916#else
1707 struct timeval tv; 1917 struct timeval tv;
1708 1918
1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1740 } 1950 }
1741 1951
1742 return ncur; 1952 return ncur;
1743} 1953}
1744 1954
1745static void * noinline ecb_cold 1955noinline ecb_cold
1956static void *
1746array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
1747{ 1958{
1748 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
1749 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
1750} 1961}
1753 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1754 1965
1755#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
1756 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
1757 { \ 1968 { \
1758 int ecb_unused ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
1759 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
1760 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
1761 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
1762 } 1973 }
1763 1974
1775 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1776 1987
1777/*****************************************************************************/ 1988/*****************************************************************************/
1778 1989
1779/* dummy callback for pending events */ 1990/* dummy callback for pending events */
1780static void noinline 1991noinline
1992static void
1781pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
1782{ 1994{
1783} 1995}
1784 1996
1785void noinline 1997noinline
1998void
1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1999ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1787{ 2000{
1788 W w_ = (W)w; 2001 W w_ = (W)w;
1789 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
1790 2003
1791 if (expect_false (w_->pending)) 2004 if (expect_false (w_->pending))
1852 if (expect_true (!anfd->reify)) 2065 if (expect_true (!anfd->reify))
1853 fd_event_nocheck (EV_A_ fd, revents); 2066 fd_event_nocheck (EV_A_ fd, revents);
1854} 2067}
1855 2068
1856void 2069void
1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1858{ 2071{
1859 if (fd >= 0 && fd < anfdmax) 2072 if (fd >= 0 && fd < anfdmax)
1860 fd_event_nocheck (EV_A_ fd, revents); 2073 fd_event_nocheck (EV_A_ fd, revents);
1861} 2074}
1862 2075
1920 2133
1921 fdchangecnt = 0; 2134 fdchangecnt = 0;
1922} 2135}
1923 2136
1924/* something about the given fd changed */ 2137/* something about the given fd changed */
1925inline_size void 2138inline_size
2139void
1926fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1927{ 2141{
1928 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1929 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1930 2144
1935 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
1936 } 2150 }
1937} 2151}
1938 2152
1939/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1940inline_speed void ecb_cold 2154inline_speed ecb_cold void
1941fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
1942{ 2156{
1943 ev_io *w; 2157 ev_io *w;
1944 2158
1945 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
1948 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2162 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1949 } 2163 }
1950} 2164}
1951 2165
1952/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
1953inline_size int ecb_cold 2167inline_size ecb_cold int
1954fd_valid (int fd) 2168fd_valid (int fd)
1955{ 2169{
1956#ifdef _WIN32 2170#ifdef _WIN32
1957 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1958#else 2172#else
1959 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
1960#endif 2174#endif
1961} 2175}
1962 2176
1963/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
1964static void noinline ecb_cold 2178noinline ecb_cold
2179static void
1965fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
1966{ 2181{
1967 int fd; 2182 int fd;
1968 2183
1969 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
1971 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
1972 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
1973} 2188}
1974 2189
1975/* called on ENOMEM in select/poll to kill some fds and retry */ 2190/* called on ENOMEM in select/poll to kill some fds and retry */
1976static void noinline ecb_cold 2191noinline ecb_cold
2192static void
1977fd_enomem (EV_P) 2193fd_enomem (EV_P)
1978{ 2194{
1979 int fd; 2195 int fd;
1980 2196
1981 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
1985 break; 2201 break;
1986 } 2202 }
1987} 2203}
1988 2204
1989/* usually called after fork if backend needs to re-arm all fds from scratch */ 2205/* usually called after fork if backend needs to re-arm all fds from scratch */
1990static void noinline 2206noinline
2207static void
1991fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
1992{ 2209{
1993 int fd; 2210 int fd;
1994 2211
1995 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
2176 2393
2177/*****************************************************************************/ 2394/*****************************************************************************/
2178 2395
2179#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2180 2397
2181static void noinline ecb_cold 2398noinline ecb_cold
2399static void
2182evpipe_init (EV_P) 2400evpipe_init (EV_P)
2183{ 2401{
2184 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
2185 { 2403 {
2186 int fds [2]; 2404 int fds [2];
2257#endif 2475#endif
2258 { 2476 {
2259#ifdef _WIN32 2477#ifdef _WIN32
2260 WSABUF buf; 2478 WSABUF buf;
2261 DWORD sent; 2479 DWORD sent;
2262 buf.buf = &buf; 2480 buf.buf = (char *)&buf;
2263 buf.len = 1; 2481 buf.len = 1;
2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2482 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2265#else 2483#else
2266 write (evpipe [1], &(evpipe [1]), 1); 2484 write (evpipe [1], &(evpipe [1]), 1);
2267#endif 2485#endif
2339} 2557}
2340 2558
2341/*****************************************************************************/ 2559/*****************************************************************************/
2342 2560
2343void 2561void
2344ev_feed_signal (int signum) EV_THROW 2562ev_feed_signal (int signum) EV_NOEXCEPT
2345{ 2563{
2346#if EV_MULTIPLICITY 2564#if EV_MULTIPLICITY
2347 EV_P; 2565 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE; 2566 ECB_MEMORY_FENCE_ACQUIRE;
2349 EV_A = signals [signum - 1].loop; 2567 EV_A = signals [signum - 1].loop;
2364#endif 2582#endif
2365 2583
2366 ev_feed_signal (signum); 2584 ev_feed_signal (signum);
2367} 2585}
2368 2586
2369void noinline 2587noinline
2588void
2370ev_feed_signal_event (EV_P_ int signum) EV_THROW 2589ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2371{ 2590{
2372 WL w; 2591 WL w;
2373 2592
2374 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2375 return; 2594 return;
2491#endif 2710#endif
2492#if EV_USE_SELECT 2711#if EV_USE_SELECT
2493# include "ev_select.c" 2712# include "ev_select.c"
2494#endif 2713#endif
2495 2714
2496int ecb_cold 2715ecb_cold int
2497ev_version_major (void) EV_THROW 2716ev_version_major (void) EV_NOEXCEPT
2498{ 2717{
2499 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
2500} 2719}
2501 2720
2502int ecb_cold 2721ecb_cold int
2503ev_version_minor (void) EV_THROW 2722ev_version_minor (void) EV_NOEXCEPT
2504{ 2723{
2505 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
2506} 2725}
2507 2726
2508/* return true if we are running with elevated privileges and should ignore env variables */ 2727/* return true if we are running with elevated privileges and should ignore env variables */
2509int inline_size ecb_cold 2728inline_size ecb_cold int
2510enable_secure (void) 2729enable_secure (void)
2511{ 2730{
2512#ifdef _WIN32 2731#ifdef _WIN32
2513 return 0; 2732 return 0;
2514#else 2733#else
2515 return getuid () != geteuid () 2734 return getuid () != geteuid ()
2516 || getgid () != getegid (); 2735 || getgid () != getegid ();
2517#endif 2736#endif
2518} 2737}
2519 2738
2520unsigned int ecb_cold 2739ecb_cold
2740unsigned int
2521ev_supported_backends (void) EV_THROW 2741ev_supported_backends (void) EV_NOEXCEPT
2522{ 2742{
2523 unsigned int flags = 0; 2743 unsigned int flags = 0;
2524 2744
2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2529 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2530 2750
2531 return flags; 2751 return flags;
2532} 2752}
2533 2753
2534unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2535ev_recommended_backends (void) EV_THROW 2756ev_recommended_backends (void) EV_NOEXCEPT
2536{ 2757{
2537 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
2538 2759
2539#ifndef __NetBSD__ 2760#ifndef __NetBSD__
2540 /* kqueue is borked on everything but netbsd apparently */ 2761 /* kqueue is borked on everything but netbsd apparently */
2551#endif 2772#endif
2552 2773
2553 return flags; 2774 return flags;
2554} 2775}
2555 2776
2556unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2557ev_embeddable_backends (void) EV_THROW 2779ev_embeddable_backends (void) EV_NOEXCEPT
2558{ 2780{
2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2560 2782
2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2783 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2784 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2564 2786
2565 return flags; 2787 return flags;
2566} 2788}
2567 2789
2568unsigned int 2790unsigned int
2569ev_backend (EV_P) EV_THROW 2791ev_backend (EV_P) EV_NOEXCEPT
2570{ 2792{
2571 return backend; 2793 return backend;
2572} 2794}
2573 2795
2574#if EV_FEATURE_API 2796#if EV_FEATURE_API
2575unsigned int 2797unsigned int
2576ev_iteration (EV_P) EV_THROW 2798ev_iteration (EV_P) EV_NOEXCEPT
2577{ 2799{
2578 return loop_count; 2800 return loop_count;
2579} 2801}
2580 2802
2581unsigned int 2803unsigned int
2582ev_depth (EV_P) EV_THROW 2804ev_depth (EV_P) EV_NOEXCEPT
2583{ 2805{
2584 return loop_depth; 2806 return loop_depth;
2585} 2807}
2586 2808
2587void 2809void
2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2589{ 2811{
2590 io_blocktime = interval; 2812 io_blocktime = interval;
2591} 2813}
2592 2814
2593void 2815void
2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2595{ 2817{
2596 timeout_blocktime = interval; 2818 timeout_blocktime = interval;
2597} 2819}
2598 2820
2599void 2821void
2600ev_set_userdata (EV_P_ void *data) EV_THROW 2822ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2601{ 2823{
2602 userdata = data; 2824 userdata = data;
2603} 2825}
2604 2826
2605void * 2827void *
2606ev_userdata (EV_P) EV_THROW 2828ev_userdata (EV_P) EV_NOEXCEPT
2607{ 2829{
2608 return userdata; 2830 return userdata;
2609} 2831}
2610 2832
2611void 2833void
2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2834ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2613{ 2835{
2614 invoke_cb = invoke_pending_cb; 2836 invoke_cb = invoke_pending_cb;
2615} 2837}
2616 2838
2617void 2839void
2618ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2619{ 2841{
2620 release_cb = release; 2842 release_cb = release;
2621 acquire_cb = acquire; 2843 acquire_cb = acquire;
2622} 2844}
2623#endif 2845#endif
2624 2846
2625/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
2626static void noinline ecb_cold 2848noinline ecb_cold
2849static void
2627loop_init (EV_P_ unsigned int flags) EV_THROW 2850loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2628{ 2851{
2629 if (!backend) 2852 if (!backend)
2630 { 2853 {
2631 origflags = flags; 2854 origflags = flags;
2632 2855
2718#endif 2941#endif
2719 } 2942 }
2720} 2943}
2721 2944
2722/* free up a loop structure */ 2945/* free up a loop structure */
2723void ecb_cold 2946ecb_cold
2947void
2724ev_loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
2725{ 2949{
2726 int i; 2950 int i;
2727 2951
2728#if EV_MULTIPLICITY 2952#if EV_MULTIPLICITY
2849#if EV_USE_INOTIFY 3073#if EV_USE_INOTIFY
2850 infy_fork (EV_A); 3074 infy_fork (EV_A);
2851#endif 3075#endif
2852 3076
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2854 if (ev_is_active (&pipe_w)) 3078 if (ev_is_active (&pipe_w) && postfork != 2)
2855 { 3079 {
2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3080 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2857 3081
2858 ev_ref (EV_A); 3082 ev_ref (EV_A);
2859 ev_io_stop (EV_A_ &pipe_w); 3083 ev_io_stop (EV_A_ &pipe_w);
2870 postfork = 0; 3094 postfork = 0;
2871} 3095}
2872 3096
2873#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
2874 3098
3099ecb_cold
2875struct ev_loop * ecb_cold 3100struct ev_loop *
2876ev_loop_new (unsigned int flags) EV_THROW 3101ev_loop_new (unsigned int flags) EV_NOEXCEPT
2877{ 3102{
2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2879 3104
2880 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
2881 loop_init (EV_A_ flags); 3106 loop_init (EV_A_ flags);
2888} 3113}
2889 3114
2890#endif /* multiplicity */ 3115#endif /* multiplicity */
2891 3116
2892#if EV_VERIFY 3117#if EV_VERIFY
2893static void noinline ecb_cold 3118noinline ecb_cold
3119static void
2894verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
2895{ 3121{
2896 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2897 3123
2898 if (w->pending) 3124 if (w->pending)
2899 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2900} 3126}
2901 3127
2902static void noinline ecb_cold 3128noinline ecb_cold
3129static void
2903verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
2904{ 3131{
2905 int i; 3132 int i;
2906 3133
2907 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
2912 3139
2913 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2914 } 3141 }
2915} 3142}
2916 3143
2917static void noinline ecb_cold 3144noinline ecb_cold
3145static void
2918array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
2919{ 3147{
2920 while (cnt--) 3148 while (cnt--)
2921 { 3149 {
2922 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
2925} 3153}
2926#endif 3154#endif
2927 3155
2928#if EV_FEATURE_API 3156#if EV_FEATURE_API
2929void ecb_cold 3157void ecb_cold
2930ev_verify (EV_P) EV_THROW 3158ev_verify (EV_P) EV_NOEXCEPT
2931{ 3159{
2932#if EV_VERIFY 3160#if EV_VERIFY
2933 int i; 3161 int i;
2934 WL w, w2; 3162 WL w, w2;
2935 3163
3011#endif 3239#endif
3012} 3240}
3013#endif 3241#endif
3014 3242
3015#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
3016struct ev_loop * ecb_cold 3245struct ev_loop *
3017#else 3246#else
3018int 3247int
3019#endif 3248#endif
3020ev_default_loop (unsigned int flags) EV_THROW 3249ev_default_loop (unsigned int flags) EV_NOEXCEPT
3021{ 3250{
3022 if (!ev_default_loop_ptr) 3251 if (!ev_default_loop_ptr)
3023 { 3252 {
3024#if EV_MULTIPLICITY 3253#if EV_MULTIPLICITY
3025 EV_P = ev_default_loop_ptr = &default_loop_struct; 3254 EV_P = ev_default_loop_ptr = &default_loop_struct;
3044 3273
3045 return ev_default_loop_ptr; 3274 return ev_default_loop_ptr;
3046} 3275}
3047 3276
3048void 3277void
3049ev_loop_fork (EV_P) EV_THROW 3278ev_loop_fork (EV_P) EV_NOEXCEPT
3050{ 3279{
3051 postfork = 1; 3280 postfork = 1;
3052} 3281}
3053 3282
3054/*****************************************************************************/ 3283/*****************************************************************************/
3058{ 3287{
3059 EV_CB_INVOKE ((W)w, revents); 3288 EV_CB_INVOKE ((W)w, revents);
3060} 3289}
3061 3290
3062unsigned int 3291unsigned int
3063ev_pending_count (EV_P) EV_THROW 3292ev_pending_count (EV_P) EV_NOEXCEPT
3064{ 3293{
3065 int pri; 3294 int pri;
3066 unsigned int count = 0; 3295 unsigned int count = 0;
3067 3296
3068 for (pri = NUMPRI; pri--; ) 3297 for (pri = NUMPRI; pri--; )
3069 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
3070 3299
3071 return count; 3300 return count;
3072} 3301}
3073 3302
3074void noinline 3303noinline
3304void
3075ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
3076{ 3306{
3077 pendingpri = NUMPRI; 3307 pendingpri = NUMPRI;
3078 3308
3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3309 do
3080 { 3310 {
3081 --pendingpri; 3311 --pendingpri;
3082 3312
3313 /* pendingpri possibly gets modified in the inner loop */
3083 while (pendingcnt [pendingpri]) 3314 while (pendingcnt [pendingpri])
3084 { 3315 {
3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3316 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3086 3317
3087 p->w->pending = 0; 3318 p->w->pending = 0;
3088 EV_CB_INVOKE (p->w, p->events); 3319 EV_CB_INVOKE (p->w, p->events);
3089 EV_FREQUENT_CHECK; 3320 EV_FREQUENT_CHECK;
3090 } 3321 }
3091 } 3322 }
3323 while (pendingpri);
3092} 3324}
3093 3325
3094#if EV_IDLE_ENABLE 3326#if EV_IDLE_ENABLE
3095/* make idle watchers pending. this handles the "call-idle */ 3327/* make idle watchers pending. this handles the "call-idle */
3096/* only when higher priorities are idle" logic */ 3328/* only when higher priorities are idle" logic */
3154 } 3386 }
3155} 3387}
3156 3388
3157#if EV_PERIODIC_ENABLE 3389#if EV_PERIODIC_ENABLE
3158 3390
3159static void noinline 3391noinline
3392static void
3160periodic_recalc (EV_P_ ev_periodic *w) 3393periodic_recalc (EV_P_ ev_periodic *w)
3161{ 3394{
3162 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3395 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3163 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3396 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3164 3397
3222 } 3455 }
3223} 3456}
3224 3457
3225/* simply recalculate all periodics */ 3458/* simply recalculate all periodics */
3226/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3459/* TODO: maybe ensure that at least one event happens when jumping forward? */
3227static void noinline ecb_cold 3460noinline ecb_cold
3461static void
3228periodics_reschedule (EV_P) 3462periodics_reschedule (EV_P)
3229{ 3463{
3230 int i; 3464 int i;
3231 3465
3232 /* adjust periodics after time jump */ 3466 /* adjust periodics after time jump */
3245 reheap (periodics, periodiccnt); 3479 reheap (periodics, periodiccnt);
3246} 3480}
3247#endif 3481#endif
3248 3482
3249/* adjust all timers by a given offset */ 3483/* adjust all timers by a given offset */
3250static void noinline ecb_cold 3484noinline ecb_cold
3485static void
3251timers_reschedule (EV_P_ ev_tstamp adjust) 3486timers_reschedule (EV_P_ ev_tstamp adjust)
3252{ 3487{
3253 int i; 3488 int i;
3254 3489
3255 for (i = 0; i < timercnt; ++i) 3490 for (i = 0; i < timercnt; ++i)
3502 3737
3503 return activecnt; 3738 return activecnt;
3504} 3739}
3505 3740
3506void 3741void
3507ev_break (EV_P_ int how) EV_THROW 3742ev_break (EV_P_ int how) EV_NOEXCEPT
3508{ 3743{
3509 loop_done = how; 3744 loop_done = how;
3510} 3745}
3511 3746
3512void 3747void
3513ev_ref (EV_P) EV_THROW 3748ev_ref (EV_P) EV_NOEXCEPT
3514{ 3749{
3515 ++activecnt; 3750 ++activecnt;
3516} 3751}
3517 3752
3518void 3753void
3519ev_unref (EV_P) EV_THROW 3754ev_unref (EV_P) EV_NOEXCEPT
3520{ 3755{
3521 --activecnt; 3756 --activecnt;
3522} 3757}
3523 3758
3524void 3759void
3525ev_now_update (EV_P) EV_THROW 3760ev_now_update (EV_P) EV_NOEXCEPT
3526{ 3761{
3527 time_update (EV_A_ 1e100); 3762 time_update (EV_A_ 1e100);
3528} 3763}
3529 3764
3530void 3765void
3531ev_suspend (EV_P) EV_THROW 3766ev_suspend (EV_P) EV_NOEXCEPT
3532{ 3767{
3533 ev_now_update (EV_A); 3768 ev_now_update (EV_A);
3534} 3769}
3535 3770
3536void 3771void
3537ev_resume (EV_P) EV_THROW 3772ev_resume (EV_P) EV_NOEXCEPT
3538{ 3773{
3539 ev_tstamp mn_prev = mn_now; 3774 ev_tstamp mn_prev = mn_now;
3540 3775
3541 ev_now_update (EV_A); 3776 ev_now_update (EV_A);
3542 timers_reschedule (EV_A_ mn_now - mn_prev); 3777 timers_reschedule (EV_A_ mn_now - mn_prev);
3581 w->pending = 0; 3816 w->pending = 0;
3582 } 3817 }
3583} 3818}
3584 3819
3585int 3820int
3586ev_clear_pending (EV_P_ void *w) EV_THROW 3821ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3587{ 3822{
3588 W w_ = (W)w; 3823 W w_ = (W)w;
3589 int pending = w_->pending; 3824 int pending = w_->pending;
3590 3825
3591 if (expect_true (pending)) 3826 if (expect_true (pending))
3623 w->active = 0; 3858 w->active = 0;
3624} 3859}
3625 3860
3626/*****************************************************************************/ 3861/*****************************************************************************/
3627 3862
3628void noinline 3863noinline
3864void
3629ev_io_start (EV_P_ ev_io *w) EV_THROW 3865ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3630{ 3866{
3631 int fd = w->fd; 3867 int fd = w->fd;
3632 3868
3633 if (expect_false (ev_is_active (w))) 3869 if (expect_false (ev_is_active (w)))
3634 return; 3870 return;
3649 w->events &= ~EV__IOFDSET; 3885 w->events &= ~EV__IOFDSET;
3650 3886
3651 EV_FREQUENT_CHECK; 3887 EV_FREQUENT_CHECK;
3652} 3888}
3653 3889
3654void noinline 3890noinline
3891void
3655ev_io_stop (EV_P_ ev_io *w) EV_THROW 3892ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3656{ 3893{
3657 clear_pending (EV_A_ (W)w); 3894 clear_pending (EV_A_ (W)w);
3658 if (expect_false (!ev_is_active (w))) 3895 if (expect_false (!ev_is_active (w)))
3659 return; 3896 return;
3660 3897
3668 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3905 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3669 3906
3670 EV_FREQUENT_CHECK; 3907 EV_FREQUENT_CHECK;
3671} 3908}
3672 3909
3673void noinline 3910noinline
3911void
3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3912ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3675{ 3913{
3676 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3677 return; 3915 return;
3678 3916
3679 ev_at (w) += mn_now; 3917 ev_at (w) += mn_now;
3692 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3693 3931
3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3932 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3695} 3933}
3696 3934
3697void noinline 3935noinline
3936void
3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3699{ 3938{
3700 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3701 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3702 return; 3941 return;
3703 3942
3722 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3723 3962
3724 EV_FREQUENT_CHECK; 3963 EV_FREQUENT_CHECK;
3725} 3964}
3726 3965
3727void noinline 3966noinline
3967void
3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3968ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3729{ 3969{
3730 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3731 3971
3732 clear_pending (EV_A_ (W)w); 3972 clear_pending (EV_A_ (W)w);
3733 3973
3750 3990
3751 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3752} 3992}
3753 3993
3754ev_tstamp 3994ev_tstamp
3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3756{ 3996{
3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3997 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3758} 3998}
3759 3999
3760#if EV_PERIODIC_ENABLE 4000#if EV_PERIODIC_ENABLE
3761void noinline 4001noinline
4002void
3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4003ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3763{ 4004{
3764 if (expect_false (ev_is_active (w))) 4005 if (expect_false (ev_is_active (w)))
3765 return; 4006 return;
3766 4007
3767 if (w->reschedule_cb) 4008 if (w->reschedule_cb)
3786 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3787 4028
3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4029 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3789} 4030}
3790 4031
3791void noinline 4032noinline
4033void
3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4034ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3793{ 4035{
3794 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3795 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3796 return; 4038 return;
3797 4039
3814 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3815 4057
3816 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3817} 4059}
3818 4060
3819void noinline 4061noinline
4062void
3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4063ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3821{ 4064{
3822 /* TODO: use adjustheap and recalculation */ 4065 /* TODO: use adjustheap and recalculation */
3823 ev_periodic_stop (EV_A_ w); 4066 ev_periodic_stop (EV_A_ w);
3824 ev_periodic_start (EV_A_ w); 4067 ev_periodic_start (EV_A_ w);
3825} 4068}
3829# define SA_RESTART 0 4072# define SA_RESTART 0
3830#endif 4073#endif
3831 4074
3832#if EV_SIGNAL_ENABLE 4075#if EV_SIGNAL_ENABLE
3833 4076
3834void noinline 4077noinline
4078void
3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4079ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3836{ 4080{
3837 if (expect_false (ev_is_active (w))) 4081 if (expect_false (ev_is_active (w)))
3838 return; 4082 return;
3839 4083
3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4084 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3911 } 4155 }
3912 4156
3913 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3914} 4158}
3915 4159
3916void noinline 4160noinline
4161void
3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4162ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3918{ 4163{
3919 clear_pending (EV_A_ (W)w); 4164 clear_pending (EV_A_ (W)w);
3920 if (expect_false (!ev_is_active (w))) 4165 if (expect_false (!ev_is_active (w)))
3921 return; 4166 return;
3922 4167
3953#endif 4198#endif
3954 4199
3955#if EV_CHILD_ENABLE 4200#if EV_CHILD_ENABLE
3956 4201
3957void 4202void
3958ev_child_start (EV_P_ ev_child *w) EV_THROW 4203ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3959{ 4204{
3960#if EV_MULTIPLICITY 4205#if EV_MULTIPLICITY
3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4206 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3962#endif 4207#endif
3963 if (expect_false (ev_is_active (w))) 4208 if (expect_false (ev_is_active (w)))
3970 4215
3971 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3972} 4217}
3973 4218
3974void 4219void
3975ev_child_stop (EV_P_ ev_child *w) EV_THROW 4220ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3976{ 4221{
3977 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3978 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3979 return; 4224 return;
3980 4225
3997 4242
3998#define DEF_STAT_INTERVAL 5.0074891 4243#define DEF_STAT_INTERVAL 5.0074891
3999#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4244#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4000#define MIN_STAT_INTERVAL 0.1074891 4245#define MIN_STAT_INTERVAL 0.1074891
4001 4246
4002static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4247noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4003 4248
4004#if EV_USE_INOTIFY 4249#if EV_USE_INOTIFY
4005 4250
4006/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4251/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4252# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4008 4253
4009static void noinline 4254noinline
4255static void
4010infy_add (EV_P_ ev_stat *w) 4256infy_add (EV_P_ ev_stat *w)
4011{ 4257{
4012 w->wd = inotify_add_watch (fs_fd, w->path, 4258 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4259 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4260 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4078 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4079 ev_timer_again (EV_A_ &w->timer); 4325 ev_timer_again (EV_A_ &w->timer);
4080 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4326 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4081} 4327}
4082 4328
4083static void noinline 4329noinline
4330static void
4084infy_del (EV_P_ ev_stat *w) 4331infy_del (EV_P_ ev_stat *w)
4085{ 4332{
4086 int slot; 4333 int slot;
4087 int wd = w->wd; 4334 int wd = w->wd;
4088 4335
4095 4342
4096 /* remove this watcher, if others are watching it, they will rearm */ 4343 /* remove this watcher, if others are watching it, they will rearm */
4097 inotify_rm_watch (fs_fd, wd); 4344 inotify_rm_watch (fs_fd, wd);
4098} 4345}
4099 4346
4100static void noinline 4347noinline
4348static void
4101infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4349infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4102{ 4350{
4103 if (slot < 0) 4351 if (slot < 0)
4104 /* overflow, need to check for all hash slots */ 4352 /* overflow, need to check for all hash slots */
4105 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4353 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4141 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4389 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4142 ofs += sizeof (struct inotify_event) + ev->len; 4390 ofs += sizeof (struct inotify_event) + ev->len;
4143 } 4391 }
4144} 4392}
4145 4393
4146inline_size void ecb_cold 4394inline_size ecb_cold
4395void
4147ev_check_2625 (EV_P) 4396ev_check_2625 (EV_P)
4148{ 4397{
4149 /* kernels < 2.6.25 are borked 4398 /* kernels < 2.6.25 are borked
4150 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4399 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4151 */ 4400 */
4241#else 4490#else
4242# define EV_LSTAT(p,b) lstat (p, b) 4491# define EV_LSTAT(p,b) lstat (p, b)
4243#endif 4492#endif
4244 4493
4245void 4494void
4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4495ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4247{ 4496{
4248 if (lstat (w->path, &w->attr) < 0) 4497 if (lstat (w->path, &w->attr) < 0)
4249 w->attr.st_nlink = 0; 4498 w->attr.st_nlink = 0;
4250 else if (!w->attr.st_nlink) 4499 else if (!w->attr.st_nlink)
4251 w->attr.st_nlink = 1; 4500 w->attr.st_nlink = 1;
4252} 4501}
4253 4502
4254static void noinline 4503noinline
4504static void
4255stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4505stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4256{ 4506{
4257 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4507 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4258 4508
4259 ev_statdata prev = w->attr; 4509 ev_statdata prev = w->attr;
4290 ev_feed_event (EV_A_ w, EV_STAT); 4540 ev_feed_event (EV_A_ w, EV_STAT);
4291 } 4541 }
4292} 4542}
4293 4543
4294void 4544void
4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4545ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4296{ 4546{
4297 if (expect_false (ev_is_active (w))) 4547 if (expect_false (ev_is_active (w)))
4298 return; 4548 return;
4299 4549
4300 ev_stat_stat (EV_A_ w); 4550 ev_stat_stat (EV_A_ w);
4321 4571
4322 EV_FREQUENT_CHECK; 4572 EV_FREQUENT_CHECK;
4323} 4573}
4324 4574
4325void 4575void
4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4576ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4327{ 4577{
4328 clear_pending (EV_A_ (W)w); 4578 clear_pending (EV_A_ (W)w);
4329 if (expect_false (!ev_is_active (w))) 4579 if (expect_false (!ev_is_active (w)))
4330 return; 4580 return;
4331 4581
4347} 4597}
4348#endif 4598#endif
4349 4599
4350#if EV_IDLE_ENABLE 4600#if EV_IDLE_ENABLE
4351void 4601void
4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4602ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4353{ 4603{
4354 if (expect_false (ev_is_active (w))) 4604 if (expect_false (ev_is_active (w)))
4355 return; 4605 return;
4356 4606
4357 pri_adjust (EV_A_ (W)w); 4607 pri_adjust (EV_A_ (W)w);
4370 4620
4371 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4372} 4622}
4373 4623
4374void 4624void
4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4625ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4376{ 4626{
4377 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4378 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4379 return; 4629 return;
4380 4630
4394} 4644}
4395#endif 4645#endif
4396 4646
4397#if EV_PREPARE_ENABLE 4647#if EV_PREPARE_ENABLE
4398void 4648void
4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4649ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4400{ 4650{
4401 if (expect_false (ev_is_active (w))) 4651 if (expect_false (ev_is_active (w)))
4402 return; 4652 return;
4403 4653
4404 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4409 4659
4410 EV_FREQUENT_CHECK; 4660 EV_FREQUENT_CHECK;
4411} 4661}
4412 4662
4413void 4663void
4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4664ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4415{ 4665{
4416 clear_pending (EV_A_ (W)w); 4666 clear_pending (EV_A_ (W)w);
4417 if (expect_false (!ev_is_active (w))) 4667 if (expect_false (!ev_is_active (w)))
4418 return; 4668 return;
4419 4669
4432} 4682}
4433#endif 4683#endif
4434 4684
4435#if EV_CHECK_ENABLE 4685#if EV_CHECK_ENABLE
4436void 4686void
4437ev_check_start (EV_P_ ev_check *w) EV_THROW 4687ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4438{ 4688{
4439 if (expect_false (ev_is_active (w))) 4689 if (expect_false (ev_is_active (w)))
4440 return; 4690 return;
4441 4691
4442 EV_FREQUENT_CHECK; 4692 EV_FREQUENT_CHECK;
4447 4697
4448 EV_FREQUENT_CHECK; 4698 EV_FREQUENT_CHECK;
4449} 4699}
4450 4700
4451void 4701void
4452ev_check_stop (EV_P_ ev_check *w) EV_THROW 4702ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4453{ 4703{
4454 clear_pending (EV_A_ (W)w); 4704 clear_pending (EV_A_ (W)w);
4455 if (expect_false (!ev_is_active (w))) 4705 if (expect_false (!ev_is_active (w)))
4456 return; 4706 return;
4457 4707
4469 EV_FREQUENT_CHECK; 4719 EV_FREQUENT_CHECK;
4470} 4720}
4471#endif 4721#endif
4472 4722
4473#if EV_EMBED_ENABLE 4723#if EV_EMBED_ENABLE
4474void noinline 4724noinline
4725void
4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4726ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4476{ 4727{
4477 ev_run (w->other, EVRUN_NOWAIT); 4728 ev_run (w->other, EVRUN_NOWAIT);
4478} 4729}
4479 4730
4480static void 4731static void
4528 ev_idle_stop (EV_A_ idle); 4779 ev_idle_stop (EV_A_ idle);
4529} 4780}
4530#endif 4781#endif
4531 4782
4532void 4783void
4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4534{ 4785{
4535 if (expect_false (ev_is_active (w))) 4786 if (expect_false (ev_is_active (w)))
4536 return; 4787 return;
4537 4788
4538 { 4789 {
4559 4810
4560 EV_FREQUENT_CHECK; 4811 EV_FREQUENT_CHECK;
4561} 4812}
4562 4813
4563void 4814void
4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4815ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4565{ 4816{
4566 clear_pending (EV_A_ (W)w); 4817 clear_pending (EV_A_ (W)w);
4567 if (expect_false (!ev_is_active (w))) 4818 if (expect_false (!ev_is_active (w)))
4568 return; 4819 return;
4569 4820
4579} 4830}
4580#endif 4831#endif
4581 4832
4582#if EV_FORK_ENABLE 4833#if EV_FORK_ENABLE
4583void 4834void
4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4835ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4585{ 4836{
4586 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4587 return; 4838 return;
4588 4839
4589 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4594 4845
4595 EV_FREQUENT_CHECK; 4846 EV_FREQUENT_CHECK;
4596} 4847}
4597 4848
4598void 4849void
4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4850ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4600{ 4851{
4601 clear_pending (EV_A_ (W)w); 4852 clear_pending (EV_A_ (W)w);
4602 if (expect_false (!ev_is_active (w))) 4853 if (expect_false (!ev_is_active (w)))
4603 return; 4854 return;
4604 4855
4617} 4868}
4618#endif 4869#endif
4619 4870
4620#if EV_CLEANUP_ENABLE 4871#if EV_CLEANUP_ENABLE
4621void 4872void
4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4873ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4623{ 4874{
4624 if (expect_false (ev_is_active (w))) 4875 if (expect_false (ev_is_active (w)))
4625 return; 4876 return;
4626 4877
4627 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
4634 ev_unref (EV_A); 4885 ev_unref (EV_A);
4635 EV_FREQUENT_CHECK; 4886 EV_FREQUENT_CHECK;
4636} 4887}
4637 4888
4638void 4889void
4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4890ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4640{ 4891{
4641 clear_pending (EV_A_ (W)w); 4892 clear_pending (EV_A_ (W)w);
4642 if (expect_false (!ev_is_active (w))) 4893 if (expect_false (!ev_is_active (w)))
4643 return; 4894 return;
4644 4895
4658} 4909}
4659#endif 4910#endif
4660 4911
4661#if EV_ASYNC_ENABLE 4912#if EV_ASYNC_ENABLE
4662void 4913void
4663ev_async_start (EV_P_ ev_async *w) EV_THROW 4914ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4664{ 4915{
4665 if (expect_false (ev_is_active (w))) 4916 if (expect_false (ev_is_active (w)))
4666 return; 4917 return;
4667 4918
4668 w->sent = 0; 4919 w->sent = 0;
4677 4928
4678 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4679} 4930}
4680 4931
4681void 4932void
4682ev_async_stop (EV_P_ ev_async *w) EV_THROW 4933ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4683{ 4934{
4684 clear_pending (EV_A_ (W)w); 4935 clear_pending (EV_A_ (W)w);
4685 if (expect_false (!ev_is_active (w))) 4936 if (expect_false (!ev_is_active (w)))
4686 return; 4937 return;
4687 4938
4698 4949
4699 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4700} 4951}
4701 4952
4702void 4953void
4703ev_async_send (EV_P_ ev_async *w) EV_THROW 4954ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4704{ 4955{
4705 w->sent = 1; 4956 w->sent = 1;
4706 evpipe_write (EV_A_ &async_pending); 4957 evpipe_write (EV_A_ &async_pending);
4707} 4958}
4708#endif 4959#endif
4745 4996
4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4997 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4747} 4998}
4748 4999
4749void 5000void
4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5001ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4751{ 5002{
4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5003 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4753 5004
4754 if (expect_false (!once)) 5005 if (expect_false (!once))
4755 { 5006 {
4776} 5027}
4777 5028
4778/*****************************************************************************/ 5029/*****************************************************************************/
4779 5030
4780#if EV_WALK_ENABLE 5031#if EV_WALK_ENABLE
4781void ecb_cold 5032ecb_cold
5033void
4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5034ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4783{ 5035{
4784 int i, j; 5036 int i, j;
4785 ev_watcher_list *wl, *wn; 5037 ev_watcher_list *wl, *wn;
4786 5038
4787 if (types & (EV_IO | EV_EMBED)) 5039 if (types & (EV_IO | EV_EMBED))

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