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Comparing libev/ev.c (file contents):
Revision 1.467 by root, Fri May 16 15:15:39 2014 UTC vs.
Revision 1.487 by root, Mon Oct 29 00:00:21 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
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
256# else 258# else
257# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
258# endif 260# endif
259#endif 261#endif
260 262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
269# endif
270#endif
271
261#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263# define EV_USE_MONOTONIC EV_FEATURE_OS 274# define EV_USE_MONOTONIC EV_FEATURE_OS
264# else 275# else
265# define EV_USE_MONOTONIC 0 276# define EV_USE_MONOTONIC 0
354 365
355#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357#endif 368#endif
358 369
359#ifdef ANDROID 370#ifdef __ANDROID__
360/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT 372# undef EV_USE_SELECT
362# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
363/* 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 */
364# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
482/* 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 */
483/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
484/* 495/*
485 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
486 * 497 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved. 500 * All rights reserved.
490 * 501 *
491 * 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-
492 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
523 534
524#ifndef ECB_H 535#ifndef ECB_H
525#define ECB_H 536#define ECB_H
526 537
527/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003 539#define ECB_VERSION 0x00010005
529 540
530#ifdef _WIN32 541#ifdef _WIN32
531 typedef signed char int8_t; 542 typedef signed char int8_t;
532 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
533 typedef signed short int16_t; 544 typedef signed short int16_t;
550 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
552 #endif 563 #endif
553#else 564#else
554 #include <inttypes.h> 565 #include <inttypes.h>
555 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
556 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
557 #else 568 #else
558 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
559 #endif 570 #endif
560#endif 571#endif
561 572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
562/* work around x32 idiocy by defining proper macros */ 576/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
564 #if _ILP32 578 #if _ILP32
565 #define ECB_AMD64_X32 1 579 #define ECB_AMD64_X32 1
566 #else 580 #else
567 #define ECB_AMD64 1 581 #define ECB_AMD64 1
568 #endif 582 #endif
573 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so. 588 * or so.
575 * 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
576 * 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.
577 */ 591 */
578#ifndef ECB_GCC_VERSION
579 #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__
580 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
581 #else 594#else
582 #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)))
583 #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
584#endif 610#endif
585 611
586#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
588 614
616 #define ECB_NO_SMP 1 642 #define ECB_NO_SMP 1
617#endif 643#endif
618 644
619#if ECB_NO_SMP 645#if ECB_NO_SMP
620 #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 */
621#endif 656#endif
622 657
623#ifndef ECB_MEMORY_FENCE 658#ifndef ECB_MEMORY_FENCE
624 #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
625 #if __i386 || __i386__ 660 #if __i386 || __i386__
626 #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")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 664 #elif ECB_GCC_AMD64
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #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 */
635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
637 #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")
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__ 684 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8 686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
644 #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")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 688 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 689 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__ 690 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
672 /* see comment below (stdatomic.h) about the C11 memory model. */ 715 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
676 719
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 720 #elif ECB_CLANG_EXTENSION(c_atomic)
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model. 721 /* see comment below (stdatomic.h) about the C11 memory model. */
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */
687 725
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize () 727 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 728 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* 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... */
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif 793#endif
756 794
757/*****************************************************************************/ 795/*****************************************************************************/
758 796
759#if __cplusplus 797#if ECB_CPP
760 #define ecb_inline static inline 798 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5) 799#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__ 800 #define ecb_inline static __inline__
763#elif ECB_C99 801#elif ECB_C99
764 #define ecb_inline static inline 802 #define ecb_inline static inline
778 816
779#define ECB_CONCAT_(a, b) a ## b 817#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 818#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a 819#define ECB_STRINGIFY_(a) # a
782#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))
783 822
784#define ecb_function_ ecb_inline 823#define ecb_function_ ecb_inline
785 824
786#if ECB_GCC_VERSION(3,1) 825#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
787 #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)
788 #define ecb_is_constant(expr) __builtin_constant_p (expr) 832 #define ecb_is_constant(expr) __builtin_constant_p (expr)
789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791#else 833#else
792 #define ecb_attribute(attrlist)
793
794 /* possible C11 impl for integral types 834 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct; 835 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #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)) */
797 837
798 #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
799 #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
800 #define ecb_prefetch(addr,rw,locality) 850 #define ecb_prefetch(addr,rw,locality)
801#endif 851#endif
802 852
803/* no emulation for ecb_decltype */ 853/* no emulation for ecb_decltype */
804#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; };
805 #define ecb_decltype(x) __decltype(x) 857 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
806#elif ECB_GCC_VERSION(3,0) 858#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
807 #define ecb_decltype(x) __typeof(x) 859 #define ecb_decltype(x) __typeof__ (x)
808#endif 860#endif
809 861
862#if _MSC_VER >= 1300
863 #define ecb_deprecated __declspec (deprecated)
864#else
865 #define ecb_deprecated ecb_attribute ((__deprecated__))
866#endif
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
810#define ecb_noinline ecb_attribute ((__noinline__)) 879 #define ecb_noinline ecb_attribute ((__noinline__))
880#endif
881
811#define ecb_unused ecb_attribute ((__unused__)) 882#define ecb_unused ecb_attribute ((__unused__))
812#define ecb_const ecb_attribute ((__const__)) 883#define ecb_const ecb_attribute ((__const__))
813#define ecb_pure ecb_attribute ((__pure__)) 884#define ecb_pure ecb_attribute ((__pure__))
814 885
815#if ECB_C11 886#if ECB_C11 || __IBMC_NORETURN
887 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
816 #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)
817#else 894#else
818 #define ecb_noreturn ecb_attribute ((__noreturn__)) 895 #define ecb_noreturn ecb_attribute ((__noreturn__))
819#endif 896#endif
820 897
821#if ECB_GCC_VERSION(4,3) 898#if ECB_GCC_VERSION(4,3)
836/* for compatibility to the rest of the world */ 913/* for compatibility to the rest of the world */
837#define ecb_likely(expr) ecb_expect_true (expr) 914#define ecb_likely(expr) ecb_expect_true (expr)
838#define ecb_unlikely(expr) ecb_expect_false (expr) 915#define ecb_unlikely(expr) ecb_expect_false (expr)
839 916
840/* count trailing zero bits and count # of one bits */ 917/* count trailing zero bits and count # of one bits */
841#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))
842 /* 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 */
843 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 923 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
844 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 924 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
845 #define ecb_ctz32(x) __builtin_ctz (x) 925 #define ecb_ctz32(x) __builtin_ctz (x)
846 #define ecb_ctz64(x) __builtin_ctzll (x) 926 #define ecb_ctz64(x) __builtin_ctzll (x)
847 #define ecb_popcount32(x) __builtin_popcount (x) 927 #define ecb_popcount32(x) __builtin_popcount (x)
848 /* no popcountll */ 928 /* no popcountll */
849#else 929#else
850 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
851 ecb_function_ int 931 ecb_function_ ecb_const int
852 ecb_ctz32 (uint32_t x) 932 ecb_ctz32 (uint32_t x)
853 { 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
854 int r = 0; 939 int r = 0;
855 940
856 x &= ~x + 1; /* this isolates the lowest bit */ 941 x &= ~x + 1; /* this isolates the lowest bit */
857 942
858#if ECB_branchless_on_i386 943#if ECB_branchless_on_i386
868 if (x & 0xff00ff00) r += 8; 953 if (x & 0xff00ff00) r += 8;
869 if (x & 0xffff0000) r += 16; 954 if (x & 0xffff0000) r += 16;
870#endif 955#endif
871 956
872 return r; 957 return r;
958#endif
873 } 959 }
874 960
875 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
876 ecb_function_ int 962 ecb_function_ ecb_const int
877 ecb_ctz64 (uint64_t x) 963 ecb_ctz64 (uint64_t x)
878 { 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
879 int shift = x & 0xffffffffU ? 0 : 32; 970 int shift = x & 0xffffffff ? 0 : 32;
880 return ecb_ctz32 (x >> shift) + shift; 971 return ecb_ctz32 (x >> shift) + shift;
972#endif
881 } 973 }
882 974
883 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
884 ecb_function_ int 976 ecb_function_ ecb_const int
885 ecb_popcount32 (uint32_t x) 977 ecb_popcount32 (uint32_t x)
886 { 978 {
887 x -= (x >> 1) & 0x55555555; 979 x -= (x >> 1) & 0x55555555;
888 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 980 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
889 x = ((x >> 4) + x) & 0x0f0f0f0f; 981 x = ((x >> 4) + x) & 0x0f0f0f0f;
890 x *= 0x01010101; 982 x *= 0x01010101;
891 983
892 return x >> 24; 984 return x >> 24;
893 } 985 }
894 986
895 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
896 ecb_function_ int ecb_ld32 (uint32_t x) 988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
897 { 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
898 int r = 0; 995 int r = 0;
899 996
900 if (x >> 16) { x >>= 16; r += 16; } 997 if (x >> 16) { x >>= 16; r += 16; }
901 if (x >> 8) { x >>= 8; r += 8; } 998 if (x >> 8) { x >>= 8; r += 8; }
902 if (x >> 4) { x >>= 4; r += 4; } 999 if (x >> 4) { x >>= 4; r += 4; }
903 if (x >> 2) { x >>= 2; r += 2; } 1000 if (x >> 2) { x >>= 2; r += 2; }
904 if (x >> 1) { r += 1; } 1001 if (x >> 1) { r += 1; }
905 1002
906 return r; 1003 return r;
1004#endif
907 } 1005 }
908 1006
909 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
910 ecb_function_ int ecb_ld64 (uint64_t x) 1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
911 { 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
912 int r = 0; 1015 int r = 0;
913 1016
914 if (x >> 32) { x >>= 32; r += 32; } 1017 if (x >> 32) { x >>= 32; r += 32; }
915 1018
916 return r + ecb_ld32 (x); 1019 return r + ecb_ld32 (x);
1020#endif
917 } 1021 }
918#endif 1022#endif
919 1023
920ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; 1024ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
921ecb_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)); }
922ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; 1026ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
923ecb_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)); }
924 1028
925ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1029ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
926ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1030ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
927{ 1031{
928 return ( (x * 0x0802U & 0x22110U) 1032 return ( (x * 0x0802U & 0x22110U)
929 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1033 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
930} 1034}
931 1035
932ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1036ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
933ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1037ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
934{ 1038{
935 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1039 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
936 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1040 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
937 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1041 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
938 x = ( x >> 8 ) | ( x << 8); 1042 x = ( x >> 8 ) | ( x << 8);
939 1043
940 return x; 1044 return x;
941} 1045}
942 1046
943ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1047ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
944ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1048ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
945{ 1049{
946 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1050 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
947 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1051 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
948 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1052 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
949 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1053 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
952 return x; 1056 return x;
953} 1057}
954 1058
955/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1059/* popcount64 is only available on 64 bit cpus as gcc builtin */
956/* so for this version we are lazy */ 1060/* so for this version we are lazy */
957ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1061ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
958ecb_function_ int 1062ecb_function_ ecb_const int
959ecb_popcount64 (uint64_t x) 1063ecb_popcount64 (uint64_t x)
960{ 1064{
961 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1065 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
962} 1066}
963 1067
964ecb_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);
965ecb_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);
966ecb_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);
967ecb_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);
968ecb_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);
969ecb_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);
970ecb_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);
971ecb_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);
972 1076
973ecb_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); }
974ecb_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); }
975ecb_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); }
976ecb_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); }
977ecb_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); }
978ecb_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); }
979ecb_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); }
980ecb_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); }
981 1085
982#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
983 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1091 #endif
984 #define ecb_bswap32(x) __builtin_bswap32 (x) 1092 #define ecb_bswap32(x) __builtin_bswap32 (x)
985 #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)))
986#else 1099#else
987 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1100 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
988 ecb_function_ uint16_t 1101 ecb_function_ ecb_const uint16_t
989 ecb_bswap16 (uint16_t x) 1102 ecb_bswap16 (uint16_t x)
990 { 1103 {
991 return ecb_rotl16 (x, 8); 1104 return ecb_rotl16 (x, 8);
992 } 1105 }
993 1106
994 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1107 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
995 ecb_function_ uint32_t 1108 ecb_function_ ecb_const uint32_t
996 ecb_bswap32 (uint32_t x) 1109 ecb_bswap32 (uint32_t x)
997 { 1110 {
998 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1111 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
999 } 1112 }
1000 1113
1001 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1114 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1002 ecb_function_ uint64_t 1115 ecb_function_ ecb_const uint64_t
1003 ecb_bswap64 (uint64_t x) 1116 ecb_bswap64 (uint64_t x)
1004 { 1117 {
1005 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1118 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1006 } 1119 }
1007#endif 1120#endif
1008 1121
1009#if ECB_GCC_VERSION(4,5) 1122#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1010 #define ecb_unreachable() __builtin_unreachable () 1123 #define ecb_unreachable() __builtin_unreachable ()
1011#else 1124#else
1012 /* 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 :/ */
1013 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1126 ecb_inline ecb_noreturn void ecb_unreachable (void);
1014 ecb_inline void ecb_unreachable (void) { } 1127 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1015#endif 1128#endif
1016 1129
1017/* try to tell the compiler that some condition is definitely true */ 1130/* try to tell the compiler that some condition is definitely true */
1018#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1019 1132
1020ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1021ecb_inline unsigned char 1134ecb_inline ecb_const uint32_t
1022ecb_byteorder_helper (void) 1135ecb_byteorder_helper (void)
1023{ 1136{
1024 /* the union code still generates code under pressure in gcc, */ 1137 /* the union code still generates code under pressure in gcc, */
1025 /* but less than using pointers, and always seems to */ 1138 /* but less than using pointers, and always seems to */
1026 /* successfully return a constant. */ 1139 /* successfully return a constant. */
1027 /* the reason why we have this horrible preprocessor mess */ 1140 /* the reason why we have this horrible preprocessor mess */
1028 /* 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 */
1029 /* or when using a recent enough gcc version (>= 4.6) */ 1142 /* or when using a recent enough gcc version (>= 4.6) */
1030#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1031 return 0x44;
1032#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
1033 return 0x44; 1146 return 0x44332211;
1034#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
1035 return 0x11; 1150 return 0x11223344;
1036#else 1151#else
1037 union 1152 union
1038 { 1153 {
1154 uint8_t c[4];
1039 uint32_t i; 1155 uint32_t u;
1040 uint8_t c;
1041 } u = { 0x11223344 }; 1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1042 return u.c; 1157 return u.u;
1043#endif 1158#endif
1044} 1159}
1045 1160
1046ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1047ecb_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; }
1048ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1049ecb_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; }
1050 1165
1051#if ECB_GCC_VERSION(3,0) || ECB_C99 1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1052 #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))
1053#else 1168#else
1054 #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)))
1055#endif 1170#endif
1056 1171
1057#if __cplusplus 1172#if ECB_CPP
1058 template<typename T> 1173 template<typename T>
1059 static inline T ecb_div_rd (T val, T div) 1174 static inline T ecb_div_rd (T val, T div)
1060 { 1175 {
1061 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1176 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1062 } 1177 }
1079 } 1194 }
1080#else 1195#else
1081 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1082#endif 1197#endif
1083 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
1084/*******************************************************************************/ 1295/*******************************************************************************/
1085/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1086 1297
1087/* basically, everything uses "ieee pure-endian" floating point numbers */ 1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1088/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1299/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1089#if 0 \ 1300#if 0 \
1090 || __i386 || __i386__ \ 1301 || __i386 || __i386__ \
1091 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1302 || ECB_GCC_AMD64 \
1092 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1303 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1093 || defined __s390__ || defined __s390x__ \ 1304 || defined __s390__ || defined __s390x__ \
1094 || defined __mips__ \ 1305 || defined __mips__ \
1095 || defined __alpha__ \ 1306 || defined __alpha__ \
1096 || defined __hppa__ \ 1307 || defined __hppa__ \
1097 || defined __ia64__ \ 1308 || defined __ia64__ \
1098 || defined __m68k__ \ 1309 || defined __m68k__ \
1099 || defined __m88k__ \ 1310 || defined __m88k__ \
1100 || defined __sh__ \ 1311 || defined __sh__ \
1101 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1102 || (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__)) \
1103 || defined __aarch64__ 1314 || defined __aarch64__
1104 #define ECB_STDFP 1 1315 #define ECB_STDFP 1
1105 #include <string.h> /* for memcpy */ 1316 #include <string.h> /* for memcpy */
1106#else 1317#else
1122 #define ECB_NAN NAN 1333 #define ECB_NAN NAN
1123 #else 1334 #else
1124 #define ECB_NAN ECB_INFINITY 1335 #define ECB_NAN ECB_INFINITY
1125 #endif 1336 #endif
1126 1337
1127 /* converts an ieee half/binary16 to a float */ 1338 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1128 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; 1339 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1129 ecb_function_ float 1340 #define ecb_frexpf(x,e) frexpf ((x), (e))
1130 ecb_binary16_to_float (uint16_t x) 1341 #else
1131 { 1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1132 int e = (x >> 10) & 0x1f; 1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1133 int m = x & 0x3ff; 1344 #endif
1134 float r;
1135
1136 if (!e ) r = ldexpf (m , -24);
1137 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1138 else if (m ) r = ECB_NAN;
1139 else r = ECB_INFINITY;
1140
1141 return x & 0x8000 ? -r : r;
1142 }
1143 1345
1144 /* convert a float to ieee single/binary32 */ 1346 /* convert a float to ieee single/binary32 */
1145 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);
1146 ecb_function_ uint32_t 1348 ecb_function_ ecb_const uint32_t
1147 ecb_float_to_binary32 (float x) 1349 ecb_float_to_binary32 (float x)
1148 { 1350 {
1149 uint32_t r; 1351 uint32_t r;
1150 1352
1151 #if ECB_STDFP 1353 #if ECB_STDFP
1158 if (x == 0e0f ) return 0x00000000U; 1360 if (x == 0e0f ) return 0x00000000U;
1159 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1361 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1160 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1362 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1161 if (x != x ) return 0x7fbfffffU; 1363 if (x != x ) return 0x7fbfffffU;
1162 1364
1163 m = frexpf (x, &e) * 0x1000000U; 1365 m = ecb_frexpf (x, &e) * 0x1000000U;
1164 1366
1165 r = m & 0x80000000U; 1367 r = m & 0x80000000U;
1166 1368
1167 if (r) 1369 if (r)
1168 m = -m; 1370 m = -m;
1180 1382
1181 return r; 1383 return r;
1182 } 1384 }
1183 1385
1184 /* converts an ieee single/binary32 to a float */ 1386 /* converts an ieee single/binary32 to a float */
1185 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);
1186 ecb_function_ float 1388 ecb_function_ ecb_const float
1187 ecb_binary32_to_float (uint32_t x) 1389 ecb_binary32_to_float (uint32_t x)
1188 { 1390 {
1189 float r; 1391 float r;
1190 1392
1191 #if ECB_STDFP 1393 #if ECB_STDFP
1201 x |= 0x800000U; 1403 x |= 0x800000U;
1202 else 1404 else
1203 e = 1; 1405 e = 1;
1204 1406
1205 /* 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 */
1206 r = ldexpf (x * (0.5f / 0x800000U), e - 126); 1408 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1207 1409
1208 r = neg ? -r : r; 1410 r = neg ? -r : r;
1209 #endif 1411 #endif
1210 1412
1211 return r; 1413 return r;
1212 } 1414 }
1213 1415
1214 /* convert a double to ieee double/binary64 */ 1416 /* convert a double to ieee double/binary64 */
1215 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);
1216 ecb_function_ uint64_t 1418 ecb_function_ ecb_const uint64_t
1217 ecb_double_to_binary64 (double x) 1419 ecb_double_to_binary64 (double x)
1218 { 1420 {
1219 uint64_t r; 1421 uint64_t r;
1220 1422
1221 #if ECB_STDFP 1423 #if ECB_STDFP
1250 1452
1251 return r; 1453 return r;
1252 } 1454 }
1253 1455
1254 /* converts an ieee double/binary64 to a double */ 1456 /* converts an ieee double/binary64 to a double */
1255 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);
1256 ecb_function_ double 1458 ecb_function_ ecb_const double
1257 ecb_binary64_to_double (uint64_t x) 1459 ecb_binary64_to_double (uint64_t x)
1258 { 1460 {
1259 double r; 1461 double r;
1260 1462
1261 #if ECB_STDFP 1463 #if ECB_STDFP
1277 1479
1278 r = neg ? -r : r; 1480 r = neg ? -r : r;
1279 #endif 1481 #endif
1280 1482
1281 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));
1282 } 1500 }
1283 1501
1284#endif 1502#endif
1285 1503
1286#endif 1504#endif
1311#define inline_size ecb_inline 1529#define inline_size ecb_inline
1312 1530
1313#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
1314# define inline_speed ecb_inline 1532# define inline_speed ecb_inline
1315#else 1533#else
1316# define inline_speed static noinline 1534# define inline_speed noinline static
1317#endif 1535#endif
1318 1536
1319#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1320 1538
1321#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
1368#else 1586#else
1369 1587
1370#include <float.h> 1588#include <float.h>
1371 1589
1372/* a floor() replacement function, should be independent of ev_tstamp type */ 1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1373static ev_tstamp noinline 1592static ev_tstamp
1374ev_floor (ev_tstamp v) 1593ev_floor (ev_tstamp v)
1375{ 1594{
1376 /* the choice of shift factor is not terribly important */ 1595 /* the choice of shift factor is not terribly important */
1377#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1378 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1410 1629
1411#ifdef __linux 1630#ifdef __linux
1412# include <sys/utsname.h> 1631# include <sys/utsname.h>
1413#endif 1632#endif
1414 1633
1415static unsigned int noinline ecb_cold 1634noinline ecb_cold
1635static unsigned int
1416ev_linux_version (void) 1636ev_linux_version (void)
1417{ 1637{
1418#ifdef __linux 1638#ifdef __linux
1419 unsigned int v = 0; 1639 unsigned int v = 0;
1420 struct utsname buf; 1640 struct utsname buf;
1449} 1669}
1450 1670
1451/*****************************************************************************/ 1671/*****************************************************************************/
1452 1672
1453#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
1454static void noinline ecb_cold 1674noinline ecb_cold
1675static void
1455ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
1456{ 1677{
1457 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
1458} 1679}
1459#endif 1680#endif
1460 1681
1461static void (*syserr_cb)(const char *msg) EV_THROW; 1682static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1462 1683
1463void ecb_cold 1684ecb_cold
1685void
1464ev_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
1465{ 1687{
1466 syserr_cb = cb; 1688 syserr_cb = cb;
1467} 1689}
1468 1690
1469static void noinline ecb_cold 1691noinline ecb_cold
1692static void
1470ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
1471{ 1694{
1472 if (!msg) 1695 if (!msg)
1473 msg = "(libev) system error"; 1696 msg = "(libev) system error";
1474 1697
1487 abort (); 1710 abort ();
1488 } 1711 }
1489} 1712}
1490 1713
1491static void * 1714static void *
1492ev_realloc_emul (void *ptr, long size) EV_THROW 1715ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1493{ 1716{
1494 /* some systems, notably openbsd and darwin, fail to properly 1717 /* some systems, notably openbsd and darwin, fail to properly
1495 * 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
1496 * the single unix specification, so work around them here. 1719 * the single unix specification, so work around them here.
1497 * recently, also (at least) fedora and debian started breaking it, 1720 * recently, also (at least) fedora and debian started breaking it,
1503 1726
1504 free (ptr); 1727 free (ptr);
1505 return 0; 1728 return 0;
1506} 1729}
1507 1730
1508static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1509 1732
1510void ecb_cold 1733ecb_cold
1734void
1511ev_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
1512{ 1736{
1513 alloc = cb; 1737 alloc = cb;
1514} 1738}
1515 1739
1516inline_speed void * 1740inline_speed void *
1633 1857
1634/*****************************************************************************/ 1858/*****************************************************************************/
1635 1859
1636#ifndef EV_HAVE_EV_TIME 1860#ifndef EV_HAVE_EV_TIME
1637ev_tstamp 1861ev_tstamp
1638ev_time (void) EV_THROW 1862ev_time (void) EV_NOEXCEPT
1639{ 1863{
1640#if EV_USE_REALTIME 1864#if EV_USE_REALTIME
1641 if (expect_true (have_realtime)) 1865 if (expect_true (have_realtime))
1642 { 1866 {
1643 struct timespec ts; 1867 struct timespec ts;
1667 return ev_time (); 1891 return ev_time ();
1668} 1892}
1669 1893
1670#if EV_MULTIPLICITY 1894#if EV_MULTIPLICITY
1671ev_tstamp 1895ev_tstamp
1672ev_now (EV_P) EV_THROW 1896ev_now (EV_P) EV_NOEXCEPT
1673{ 1897{
1674 return ev_rt_now; 1898 return ev_rt_now;
1675} 1899}
1676#endif 1900#endif
1677 1901
1678void 1902void
1679ev_sleep (ev_tstamp delay) EV_THROW 1903ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1680{ 1904{
1681 if (delay > 0.) 1905 if (delay > 0.)
1682 { 1906 {
1683#if EV_USE_NANOSLEEP 1907#if EV_USE_NANOSLEEP
1684 struct timespec ts; 1908 struct timespec ts;
1685 1909
1686 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
1687 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
1688#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) */
1689 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
1690#else 1916#else
1691 struct timeval tv; 1917 struct timeval tv;
1692 1918
1693 /* 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 */
1724 } 1950 }
1725 1951
1726 return ncur; 1952 return ncur;
1727} 1953}
1728 1954
1729static void * noinline ecb_cold 1955noinline ecb_cold
1956static void *
1730array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
1731{ 1958{
1732 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
1733 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
1734} 1961}
1737 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1738 1965
1739#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
1740 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
1741 { \ 1968 { \
1742 int ecb_unused ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
1743 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
1744 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
1745 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
1746 } 1973 }
1747 1974
1759 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
1760 1987
1761/*****************************************************************************/ 1988/*****************************************************************************/
1762 1989
1763/* dummy callback for pending events */ 1990/* dummy callback for pending events */
1764static void noinline 1991noinline
1992static void
1765pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
1766{ 1994{
1767} 1995}
1768 1996
1769void noinline 1997noinline
1998void
1770ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1999ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1771{ 2000{
1772 W w_ = (W)w; 2001 W w_ = (W)w;
1773 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
1774 2003
1775 if (expect_false (w_->pending)) 2004 if (expect_false (w_->pending))
1836 if (expect_true (!anfd->reify)) 2065 if (expect_true (!anfd->reify))
1837 fd_event_nocheck (EV_A_ fd, revents); 2066 fd_event_nocheck (EV_A_ fd, revents);
1838} 2067}
1839 2068
1840void 2069void
1841ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1842{ 2071{
1843 if (fd >= 0 && fd < anfdmax) 2072 if (fd >= 0 && fd < anfdmax)
1844 fd_event_nocheck (EV_A_ fd, revents); 2073 fd_event_nocheck (EV_A_ fd, revents);
1845} 2074}
1846 2075
1904 2133
1905 fdchangecnt = 0; 2134 fdchangecnt = 0;
1906} 2135}
1907 2136
1908/* something about the given fd changed */ 2137/* something about the given fd changed */
1909inline_size void 2138inline_size
2139void
1910fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1911{ 2141{
1912 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1913 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1914 2144
1919 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
1920 } 2150 }
1921} 2151}
1922 2152
1923/* 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 */
1924inline_speed void ecb_cold 2154inline_speed ecb_cold void
1925fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
1926{ 2156{
1927 ev_io *w; 2157 ev_io *w;
1928 2158
1929 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
1932 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);
1933 } 2163 }
1934} 2164}
1935 2165
1936/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
1937inline_size int ecb_cold 2167inline_size ecb_cold int
1938fd_valid (int fd) 2168fd_valid (int fd)
1939{ 2169{
1940#ifdef _WIN32 2170#ifdef _WIN32
1941 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1942#else 2172#else
1943 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
1944#endif 2174#endif
1945} 2175}
1946 2176
1947/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
1948static void noinline ecb_cold 2178noinline ecb_cold
2179static void
1949fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
1950{ 2181{
1951 int fd; 2182 int fd;
1952 2183
1953 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
1955 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
1956 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
1957} 2188}
1958 2189
1959/* 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 */
1960static void noinline ecb_cold 2191noinline ecb_cold
2192static void
1961fd_enomem (EV_P) 2193fd_enomem (EV_P)
1962{ 2194{
1963 int fd; 2195 int fd;
1964 2196
1965 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
1969 break; 2201 break;
1970 } 2202 }
1971} 2203}
1972 2204
1973/* 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 */
1974static void noinline 2206noinline
2207static void
1975fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
1976{ 2209{
1977 int fd; 2210 int fd;
1978 2211
1979 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
2160 2393
2161/*****************************************************************************/ 2394/*****************************************************************************/
2162 2395
2163#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2164 2397
2165static void noinline ecb_cold 2398noinline ecb_cold
2399static void
2166evpipe_init (EV_P) 2400evpipe_init (EV_P)
2167{ 2401{
2168 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
2169 { 2403 {
2170 int fds [2]; 2404 int fds [2];
2241#endif 2475#endif
2242 { 2476 {
2243#ifdef _WIN32 2477#ifdef _WIN32
2244 WSABUF buf; 2478 WSABUF buf;
2245 DWORD sent; 2479 DWORD sent;
2246 buf.buf = &buf; 2480 buf.buf = (char *)&buf;
2247 buf.len = 1; 2481 buf.len = 1;
2248 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);
2249#else 2483#else
2250 write (evpipe [1], &(evpipe [1]), 1); 2484 write (evpipe [1], &(evpipe [1]), 1);
2251#endif 2485#endif
2323} 2557}
2324 2558
2325/*****************************************************************************/ 2559/*****************************************************************************/
2326 2560
2327void 2561void
2328ev_feed_signal (int signum) EV_THROW 2562ev_feed_signal (int signum) EV_NOEXCEPT
2329{ 2563{
2330#if EV_MULTIPLICITY 2564#if EV_MULTIPLICITY
2331 EV_P; 2565 EV_P;
2332 ECB_MEMORY_FENCE_ACQUIRE; 2566 ECB_MEMORY_FENCE_ACQUIRE;
2333 EV_A = signals [signum - 1].loop; 2567 EV_A = signals [signum - 1].loop;
2348#endif 2582#endif
2349 2583
2350 ev_feed_signal (signum); 2584 ev_feed_signal (signum);
2351} 2585}
2352 2586
2353void noinline 2587noinline
2588void
2354ev_feed_signal_event (EV_P_ int signum) EV_THROW 2589ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2355{ 2590{
2356 WL w; 2591 WL w;
2357 2592
2358 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2359 return; 2594 return;
2475#endif 2710#endif
2476#if EV_USE_SELECT 2711#if EV_USE_SELECT
2477# include "ev_select.c" 2712# include "ev_select.c"
2478#endif 2713#endif
2479 2714
2480int ecb_cold 2715ecb_cold int
2481ev_version_major (void) EV_THROW 2716ev_version_major (void) EV_NOEXCEPT
2482{ 2717{
2483 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
2484} 2719}
2485 2720
2486int ecb_cold 2721ecb_cold int
2487ev_version_minor (void) EV_THROW 2722ev_version_minor (void) EV_NOEXCEPT
2488{ 2723{
2489 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
2490} 2725}
2491 2726
2492/* 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 */
2493int inline_size ecb_cold 2728inline_size ecb_cold int
2494enable_secure (void) 2729enable_secure (void)
2495{ 2730{
2496#ifdef _WIN32 2731#ifdef _WIN32
2497 return 0; 2732 return 0;
2498#else 2733#else
2499 return getuid () != geteuid () 2734 return getuid () != geteuid ()
2500 || getgid () != getegid (); 2735 || getgid () != getegid ();
2501#endif 2736#endif
2502} 2737}
2503 2738
2504unsigned int ecb_cold 2739ecb_cold
2740unsigned int
2505ev_supported_backends (void) EV_THROW 2741ev_supported_backends (void) EV_NOEXCEPT
2506{ 2742{
2507 unsigned int flags = 0; 2743 unsigned int flags = 0;
2508 2744
2509 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2510 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2513 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2514 2750
2515 return flags; 2751 return flags;
2516} 2752}
2517 2753
2518unsigned int ecb_cold 2754ecb_cold
2755unsigned int
2519ev_recommended_backends (void) EV_THROW 2756ev_recommended_backends (void) EV_NOEXCEPT
2520{ 2757{
2521 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
2522 2759
2523#ifndef __NetBSD__ 2760#ifndef __NetBSD__
2524 /* kqueue is borked on everything but netbsd apparently */ 2761 /* kqueue is borked on everything but netbsd apparently */
2535#endif 2772#endif
2536 2773
2537 return flags; 2774 return flags;
2538} 2775}
2539 2776
2540unsigned int ecb_cold 2777ecb_cold
2778unsigned int
2541ev_embeddable_backends (void) EV_THROW 2779ev_embeddable_backends (void) EV_NOEXCEPT
2542{ 2780{
2543 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2544 2782
2545 /* 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 */
2546 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 */
2548 2786
2549 return flags; 2787 return flags;
2550} 2788}
2551 2789
2552unsigned int 2790unsigned int
2553ev_backend (EV_P) EV_THROW 2791ev_backend (EV_P) EV_NOEXCEPT
2554{ 2792{
2555 return backend; 2793 return backend;
2556} 2794}
2557 2795
2558#if EV_FEATURE_API 2796#if EV_FEATURE_API
2559unsigned int 2797unsigned int
2560ev_iteration (EV_P) EV_THROW 2798ev_iteration (EV_P) EV_NOEXCEPT
2561{ 2799{
2562 return loop_count; 2800 return loop_count;
2563} 2801}
2564 2802
2565unsigned int 2803unsigned int
2566ev_depth (EV_P) EV_THROW 2804ev_depth (EV_P) EV_NOEXCEPT
2567{ 2805{
2568 return loop_depth; 2806 return loop_depth;
2569} 2807}
2570 2808
2571void 2809void
2572ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2573{ 2811{
2574 io_blocktime = interval; 2812 io_blocktime = interval;
2575} 2813}
2576 2814
2577void 2815void
2578ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2579{ 2817{
2580 timeout_blocktime = interval; 2818 timeout_blocktime = interval;
2581} 2819}
2582 2820
2583void 2821void
2584ev_set_userdata (EV_P_ void *data) EV_THROW 2822ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2585{ 2823{
2586 userdata = data; 2824 userdata = data;
2587} 2825}
2588 2826
2589void * 2827void *
2590ev_userdata (EV_P) EV_THROW 2828ev_userdata (EV_P) EV_NOEXCEPT
2591{ 2829{
2592 return userdata; 2830 return userdata;
2593} 2831}
2594 2832
2595void 2833void
2596ev_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
2597{ 2835{
2598 invoke_cb = invoke_pending_cb; 2836 invoke_cb = invoke_pending_cb;
2599} 2837}
2600 2838
2601void 2839void
2602ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW 2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2603{ 2841{
2604 release_cb = release; 2842 release_cb = release;
2605 acquire_cb = acquire; 2843 acquire_cb = acquire;
2606} 2844}
2607#endif 2845#endif
2608 2846
2609/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
2610static void noinline ecb_cold 2848noinline ecb_cold
2849static void
2611loop_init (EV_P_ unsigned int flags) EV_THROW 2850loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2612{ 2851{
2613 if (!backend) 2852 if (!backend)
2614 { 2853 {
2615 origflags = flags; 2854 origflags = flags;
2616 2855
2702#endif 2941#endif
2703 } 2942 }
2704} 2943}
2705 2944
2706/* free up a loop structure */ 2945/* free up a loop structure */
2707void ecb_cold 2946ecb_cold
2947void
2708ev_loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
2709{ 2949{
2710 int i; 2950 int i;
2711 2951
2712#if EV_MULTIPLICITY 2952#if EV_MULTIPLICITY
2833#if EV_USE_INOTIFY 3073#if EV_USE_INOTIFY
2834 infy_fork (EV_A); 3074 infy_fork (EV_A);
2835#endif 3075#endif
2836 3076
2837#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2838 if (ev_is_active (&pipe_w)) 3078 if (ev_is_active (&pipe_w) && postfork != 2)
2839 { 3079 {
2840 /* 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 */
2841 3081
2842 ev_ref (EV_A); 3082 ev_ref (EV_A);
2843 ev_io_stop (EV_A_ &pipe_w); 3083 ev_io_stop (EV_A_ &pipe_w);
2854 postfork = 0; 3094 postfork = 0;
2855} 3095}
2856 3096
2857#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
2858 3098
3099ecb_cold
2859struct ev_loop * ecb_cold 3100struct ev_loop *
2860ev_loop_new (unsigned int flags) EV_THROW 3101ev_loop_new (unsigned int flags) EV_NOEXCEPT
2861{ 3102{
2862 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2863 3104
2864 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
2865 loop_init (EV_A_ flags); 3106 loop_init (EV_A_ flags);
2872} 3113}
2873 3114
2874#endif /* multiplicity */ 3115#endif /* multiplicity */
2875 3116
2876#if EV_VERIFY 3117#if EV_VERIFY
2877static void noinline ecb_cold 3118noinline ecb_cold
3119static void
2878verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
2879{ 3121{
2880 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));
2881 3123
2882 if (w->pending) 3124 if (w->pending)
2883 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));
2884} 3126}
2885 3127
2886static void noinline ecb_cold 3128noinline ecb_cold
3129static void
2887verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
2888{ 3131{
2889 int i; 3132 int i;
2890 3133
2891 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
2896 3139
2897 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2898 } 3141 }
2899} 3142}
2900 3143
2901static void noinline ecb_cold 3144noinline ecb_cold
3145static void
2902array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
2903{ 3147{
2904 while (cnt--) 3148 while (cnt--)
2905 { 3149 {
2906 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
2909} 3153}
2910#endif 3154#endif
2911 3155
2912#if EV_FEATURE_API 3156#if EV_FEATURE_API
2913void ecb_cold 3157void ecb_cold
2914ev_verify (EV_P) EV_THROW 3158ev_verify (EV_P) EV_NOEXCEPT
2915{ 3159{
2916#if EV_VERIFY 3160#if EV_VERIFY
2917 int i; 3161 int i;
2918 WL w, w2; 3162 WL w, w2;
2919 3163
2995#endif 3239#endif
2996} 3240}
2997#endif 3241#endif
2998 3242
2999#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
3000struct ev_loop * ecb_cold 3245struct ev_loop *
3001#else 3246#else
3002int 3247int
3003#endif 3248#endif
3004ev_default_loop (unsigned int flags) EV_THROW 3249ev_default_loop (unsigned int flags) EV_NOEXCEPT
3005{ 3250{
3006 if (!ev_default_loop_ptr) 3251 if (!ev_default_loop_ptr)
3007 { 3252 {
3008#if EV_MULTIPLICITY 3253#if EV_MULTIPLICITY
3009 EV_P = ev_default_loop_ptr = &default_loop_struct; 3254 EV_P = ev_default_loop_ptr = &default_loop_struct;
3028 3273
3029 return ev_default_loop_ptr; 3274 return ev_default_loop_ptr;
3030} 3275}
3031 3276
3032void 3277void
3033ev_loop_fork (EV_P) EV_THROW 3278ev_loop_fork (EV_P) EV_NOEXCEPT
3034{ 3279{
3035 postfork = 1; 3280 postfork = 1;
3036} 3281}
3037 3282
3038/*****************************************************************************/ 3283/*****************************************************************************/
3042{ 3287{
3043 EV_CB_INVOKE ((W)w, revents); 3288 EV_CB_INVOKE ((W)w, revents);
3044} 3289}
3045 3290
3046unsigned int 3291unsigned int
3047ev_pending_count (EV_P) EV_THROW 3292ev_pending_count (EV_P) EV_NOEXCEPT
3048{ 3293{
3049 int pri; 3294 int pri;
3050 unsigned int count = 0; 3295 unsigned int count = 0;
3051 3296
3052 for (pri = NUMPRI; pri--; ) 3297 for (pri = NUMPRI; pri--; )
3053 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
3054 3299
3055 return count; 3300 return count;
3056} 3301}
3057 3302
3058void noinline 3303noinline
3304void
3059ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
3060{ 3306{
3061 pendingpri = NUMPRI; 3307 pendingpri = NUMPRI;
3062 3308
3063 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3309 do
3064 { 3310 {
3065 --pendingpri; 3311 --pendingpri;
3066 3312
3313 /* pendingpri possibly gets modified in the inner loop */
3067 while (pendingcnt [pendingpri]) 3314 while (pendingcnt [pendingpri])
3068 { 3315 {
3069 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3316 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3070 3317
3071 p->w->pending = 0; 3318 p->w->pending = 0;
3072 EV_CB_INVOKE (p->w, p->events); 3319 EV_CB_INVOKE (p->w, p->events);
3073 EV_FREQUENT_CHECK; 3320 EV_FREQUENT_CHECK;
3074 } 3321 }
3075 } 3322 }
3323 while (pendingpri);
3076} 3324}
3077 3325
3078#if EV_IDLE_ENABLE 3326#if EV_IDLE_ENABLE
3079/* make idle watchers pending. this handles the "call-idle */ 3327/* make idle watchers pending. this handles the "call-idle */
3080/* only when higher priorities are idle" logic */ 3328/* only when higher priorities are idle" logic */
3138 } 3386 }
3139} 3387}
3140 3388
3141#if EV_PERIODIC_ENABLE 3389#if EV_PERIODIC_ENABLE
3142 3390
3143static void noinline 3391noinline
3392static void
3144periodic_recalc (EV_P_ ev_periodic *w) 3393periodic_recalc (EV_P_ ev_periodic *w)
3145{ 3394{
3146 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3395 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3147 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);
3148 3397
3206 } 3455 }
3207} 3456}
3208 3457
3209/* simply recalculate all periodics */ 3458/* simply recalculate all periodics */
3210/* 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? */
3211static void noinline ecb_cold 3460noinline ecb_cold
3461static void
3212periodics_reschedule (EV_P) 3462periodics_reschedule (EV_P)
3213{ 3463{
3214 int i; 3464 int i;
3215 3465
3216 /* adjust periodics after time jump */ 3466 /* adjust periodics after time jump */
3229 reheap (periodics, periodiccnt); 3479 reheap (periodics, periodiccnt);
3230} 3480}
3231#endif 3481#endif
3232 3482
3233/* adjust all timers by a given offset */ 3483/* adjust all timers by a given offset */
3234static void noinline ecb_cold 3484noinline ecb_cold
3485static void
3235timers_reschedule (EV_P_ ev_tstamp adjust) 3486timers_reschedule (EV_P_ ev_tstamp adjust)
3236{ 3487{
3237 int i; 3488 int i;
3238 3489
3239 for (i = 0; i < timercnt; ++i) 3490 for (i = 0; i < timercnt; ++i)
3486 3737
3487 return activecnt; 3738 return activecnt;
3488} 3739}
3489 3740
3490void 3741void
3491ev_break (EV_P_ int how) EV_THROW 3742ev_break (EV_P_ int how) EV_NOEXCEPT
3492{ 3743{
3493 loop_done = how; 3744 loop_done = how;
3494} 3745}
3495 3746
3496void 3747void
3497ev_ref (EV_P) EV_THROW 3748ev_ref (EV_P) EV_NOEXCEPT
3498{ 3749{
3499 ++activecnt; 3750 ++activecnt;
3500} 3751}
3501 3752
3502void 3753void
3503ev_unref (EV_P) EV_THROW 3754ev_unref (EV_P) EV_NOEXCEPT
3504{ 3755{
3505 --activecnt; 3756 --activecnt;
3506} 3757}
3507 3758
3508void 3759void
3509ev_now_update (EV_P) EV_THROW 3760ev_now_update (EV_P) EV_NOEXCEPT
3510{ 3761{
3511 time_update (EV_A_ 1e100); 3762 time_update (EV_A_ 1e100);
3512} 3763}
3513 3764
3514void 3765void
3515ev_suspend (EV_P) EV_THROW 3766ev_suspend (EV_P) EV_NOEXCEPT
3516{ 3767{
3517 ev_now_update (EV_A); 3768 ev_now_update (EV_A);
3518} 3769}
3519 3770
3520void 3771void
3521ev_resume (EV_P) EV_THROW 3772ev_resume (EV_P) EV_NOEXCEPT
3522{ 3773{
3523 ev_tstamp mn_prev = mn_now; 3774 ev_tstamp mn_prev = mn_now;
3524 3775
3525 ev_now_update (EV_A); 3776 ev_now_update (EV_A);
3526 timers_reschedule (EV_A_ mn_now - mn_prev); 3777 timers_reschedule (EV_A_ mn_now - mn_prev);
3565 w->pending = 0; 3816 w->pending = 0;
3566 } 3817 }
3567} 3818}
3568 3819
3569int 3820int
3570ev_clear_pending (EV_P_ void *w) EV_THROW 3821ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3571{ 3822{
3572 W w_ = (W)w; 3823 W w_ = (W)w;
3573 int pending = w_->pending; 3824 int pending = w_->pending;
3574 3825
3575 if (expect_true (pending)) 3826 if (expect_true (pending))
3607 w->active = 0; 3858 w->active = 0;
3608} 3859}
3609 3860
3610/*****************************************************************************/ 3861/*****************************************************************************/
3611 3862
3612void noinline 3863noinline
3864void
3613ev_io_start (EV_P_ ev_io *w) EV_THROW 3865ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3614{ 3866{
3615 int fd = w->fd; 3867 int fd = w->fd;
3616 3868
3617 if (expect_false (ev_is_active (w))) 3869 if (expect_false (ev_is_active (w)))
3618 return; 3870 return;
3633 w->events &= ~EV__IOFDSET; 3885 w->events &= ~EV__IOFDSET;
3634 3886
3635 EV_FREQUENT_CHECK; 3887 EV_FREQUENT_CHECK;
3636} 3888}
3637 3889
3638void noinline 3890noinline
3891void
3639ev_io_stop (EV_P_ ev_io *w) EV_THROW 3892ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3640{ 3893{
3641 clear_pending (EV_A_ (W)w); 3894 clear_pending (EV_A_ (W)w);
3642 if (expect_false (!ev_is_active (w))) 3895 if (expect_false (!ev_is_active (w)))
3643 return; 3896 return;
3644 3897
3652 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3905 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3653 3906
3654 EV_FREQUENT_CHECK; 3907 EV_FREQUENT_CHECK;
3655} 3908}
3656 3909
3657void noinline 3910noinline
3911void
3658ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3912ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3659{ 3913{
3660 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
3661 return; 3915 return;
3662 3916
3663 ev_at (w) += mn_now; 3917 ev_at (w) += mn_now;
3676 EV_FREQUENT_CHECK; 3930 EV_FREQUENT_CHECK;
3677 3931
3678 /*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));*/
3679} 3933}
3680 3934
3681void noinline 3935noinline
3936void
3682ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3937ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3683{ 3938{
3684 clear_pending (EV_A_ (W)w); 3939 clear_pending (EV_A_ (W)w);
3685 if (expect_false (!ev_is_active (w))) 3940 if (expect_false (!ev_is_active (w)))
3686 return; 3941 return;
3687 3942
3706 ev_stop (EV_A_ (W)w); 3961 ev_stop (EV_A_ (W)w);
3707 3962
3708 EV_FREQUENT_CHECK; 3963 EV_FREQUENT_CHECK;
3709} 3964}
3710 3965
3711void noinline 3966noinline
3967void
3712ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3968ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3713{ 3969{
3714 EV_FREQUENT_CHECK; 3970 EV_FREQUENT_CHECK;
3715 3971
3716 clear_pending (EV_A_ (W)w); 3972 clear_pending (EV_A_ (W)w);
3717 3973
3734 3990
3735 EV_FREQUENT_CHECK; 3991 EV_FREQUENT_CHECK;
3736} 3992}
3737 3993
3738ev_tstamp 3994ev_tstamp
3739ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3995ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3740{ 3996{
3741 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3997 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3742} 3998}
3743 3999
3744#if EV_PERIODIC_ENABLE 4000#if EV_PERIODIC_ENABLE
3745void noinline 4001noinline
4002void
3746ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4003ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3747{ 4004{
3748 if (expect_false (ev_is_active (w))) 4005 if (expect_false (ev_is_active (w)))
3749 return; 4006 return;
3750 4007
3751 if (w->reschedule_cb) 4008 if (w->reschedule_cb)
3770 EV_FREQUENT_CHECK; 4027 EV_FREQUENT_CHECK;
3771 4028
3772 /*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));*/
3773} 4030}
3774 4031
3775void noinline 4032noinline
4033void
3776ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4034ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3777{ 4035{
3778 clear_pending (EV_A_ (W)w); 4036 clear_pending (EV_A_ (W)w);
3779 if (expect_false (!ev_is_active (w))) 4037 if (expect_false (!ev_is_active (w)))
3780 return; 4038 return;
3781 4039
3798 ev_stop (EV_A_ (W)w); 4056 ev_stop (EV_A_ (W)w);
3799 4057
3800 EV_FREQUENT_CHECK; 4058 EV_FREQUENT_CHECK;
3801} 4059}
3802 4060
3803void noinline 4061noinline
4062void
3804ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4063ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3805{ 4064{
3806 /* TODO: use adjustheap and recalculation */ 4065 /* TODO: use adjustheap and recalculation */
3807 ev_periodic_stop (EV_A_ w); 4066 ev_periodic_stop (EV_A_ w);
3808 ev_periodic_start (EV_A_ w); 4067 ev_periodic_start (EV_A_ w);
3809} 4068}
3813# define SA_RESTART 0 4072# define SA_RESTART 0
3814#endif 4073#endif
3815 4074
3816#if EV_SIGNAL_ENABLE 4075#if EV_SIGNAL_ENABLE
3817 4076
3818void noinline 4077noinline
4078void
3819ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4079ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3820{ 4080{
3821 if (expect_false (ev_is_active (w))) 4081 if (expect_false (ev_is_active (w)))
3822 return; 4082 return;
3823 4083
3824 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));
3895 } 4155 }
3896 4156
3897 EV_FREQUENT_CHECK; 4157 EV_FREQUENT_CHECK;
3898} 4158}
3899 4159
3900void noinline 4160noinline
4161void
3901ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4162ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3902{ 4163{
3903 clear_pending (EV_A_ (W)w); 4164 clear_pending (EV_A_ (W)w);
3904 if (expect_false (!ev_is_active (w))) 4165 if (expect_false (!ev_is_active (w)))
3905 return; 4166 return;
3906 4167
3937#endif 4198#endif
3938 4199
3939#if EV_CHILD_ENABLE 4200#if EV_CHILD_ENABLE
3940 4201
3941void 4202void
3942ev_child_start (EV_P_ ev_child *w) EV_THROW 4203ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3943{ 4204{
3944#if EV_MULTIPLICITY 4205#if EV_MULTIPLICITY
3945 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));
3946#endif 4207#endif
3947 if (expect_false (ev_is_active (w))) 4208 if (expect_false (ev_is_active (w)))
3954 4215
3955 EV_FREQUENT_CHECK; 4216 EV_FREQUENT_CHECK;
3956} 4217}
3957 4218
3958void 4219void
3959ev_child_stop (EV_P_ ev_child *w) EV_THROW 4220ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3960{ 4221{
3961 clear_pending (EV_A_ (W)w); 4222 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4223 if (expect_false (!ev_is_active (w)))
3963 return; 4224 return;
3964 4225
3981 4242
3982#define DEF_STAT_INTERVAL 5.0074891 4243#define DEF_STAT_INTERVAL 5.0074891
3983#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4244#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3984#define MIN_STAT_INTERVAL 0.1074891 4245#define MIN_STAT_INTERVAL 0.1074891
3985 4246
3986static 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);
3987 4248
3988#if EV_USE_INOTIFY 4249#if EV_USE_INOTIFY
3989 4250
3990/* 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 */
3991# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4252# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3992 4253
3993static void noinline 4254noinline
4255static void
3994infy_add (EV_P_ ev_stat *w) 4256infy_add (EV_P_ ev_stat *w)
3995{ 4257{
3996 w->wd = inotify_add_watch (fs_fd, w->path, 4258 w->wd = inotify_add_watch (fs_fd, w->path,
3997 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4259 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3998 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4260 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4062 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4063 ev_timer_again (EV_A_ &w->timer); 4325 ev_timer_again (EV_A_ &w->timer);
4064 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4326 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4065} 4327}
4066 4328
4067static void noinline 4329noinline
4330static void
4068infy_del (EV_P_ ev_stat *w) 4331infy_del (EV_P_ ev_stat *w)
4069{ 4332{
4070 int slot; 4333 int slot;
4071 int wd = w->wd; 4334 int wd = w->wd;
4072 4335
4079 4342
4080 /* remove this watcher, if others are watching it, they will rearm */ 4343 /* remove this watcher, if others are watching it, they will rearm */
4081 inotify_rm_watch (fs_fd, wd); 4344 inotify_rm_watch (fs_fd, wd);
4082} 4345}
4083 4346
4084static void noinline 4347noinline
4348static void
4085infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4349infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4086{ 4350{
4087 if (slot < 0) 4351 if (slot < 0)
4088 /* overflow, need to check for all hash slots */ 4352 /* overflow, need to check for all hash slots */
4089 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4353 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4125 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4389 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4126 ofs += sizeof (struct inotify_event) + ev->len; 4390 ofs += sizeof (struct inotify_event) + ev->len;
4127 } 4391 }
4128} 4392}
4129 4393
4130inline_size void ecb_cold 4394inline_size ecb_cold
4395void
4131ev_check_2625 (EV_P) 4396ev_check_2625 (EV_P)
4132{ 4397{
4133 /* kernels < 2.6.25 are borked 4398 /* kernels < 2.6.25 are borked
4134 * 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
4135 */ 4400 */
4225#else 4490#else
4226# define EV_LSTAT(p,b) lstat (p, b) 4491# define EV_LSTAT(p,b) lstat (p, b)
4227#endif 4492#endif
4228 4493
4229void 4494void
4230ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4495ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4231{ 4496{
4232 if (lstat (w->path, &w->attr) < 0) 4497 if (lstat (w->path, &w->attr) < 0)
4233 w->attr.st_nlink = 0; 4498 w->attr.st_nlink = 0;
4234 else if (!w->attr.st_nlink) 4499 else if (!w->attr.st_nlink)
4235 w->attr.st_nlink = 1; 4500 w->attr.st_nlink = 1;
4236} 4501}
4237 4502
4238static void noinline 4503noinline
4504static void
4239stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4505stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4240{ 4506{
4241 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4507 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4242 4508
4243 ev_statdata prev = w->attr; 4509 ev_statdata prev = w->attr;
4274 ev_feed_event (EV_A_ w, EV_STAT); 4540 ev_feed_event (EV_A_ w, EV_STAT);
4275 } 4541 }
4276} 4542}
4277 4543
4278void 4544void
4279ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4545ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4280{ 4546{
4281 if (expect_false (ev_is_active (w))) 4547 if (expect_false (ev_is_active (w)))
4282 return; 4548 return;
4283 4549
4284 ev_stat_stat (EV_A_ w); 4550 ev_stat_stat (EV_A_ w);
4305 4571
4306 EV_FREQUENT_CHECK; 4572 EV_FREQUENT_CHECK;
4307} 4573}
4308 4574
4309void 4575void
4310ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4576ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4311{ 4577{
4312 clear_pending (EV_A_ (W)w); 4578 clear_pending (EV_A_ (W)w);
4313 if (expect_false (!ev_is_active (w))) 4579 if (expect_false (!ev_is_active (w)))
4314 return; 4580 return;
4315 4581
4331} 4597}
4332#endif 4598#endif
4333 4599
4334#if EV_IDLE_ENABLE 4600#if EV_IDLE_ENABLE
4335void 4601void
4336ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4602ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4337{ 4603{
4338 if (expect_false (ev_is_active (w))) 4604 if (expect_false (ev_is_active (w)))
4339 return; 4605 return;
4340 4606
4341 pri_adjust (EV_A_ (W)w); 4607 pri_adjust (EV_A_ (W)w);
4354 4620
4355 EV_FREQUENT_CHECK; 4621 EV_FREQUENT_CHECK;
4356} 4622}
4357 4623
4358void 4624void
4359ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4625ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4360{ 4626{
4361 clear_pending (EV_A_ (W)w); 4627 clear_pending (EV_A_ (W)w);
4362 if (expect_false (!ev_is_active (w))) 4628 if (expect_false (!ev_is_active (w)))
4363 return; 4629 return;
4364 4630
4378} 4644}
4379#endif 4645#endif
4380 4646
4381#if EV_PREPARE_ENABLE 4647#if EV_PREPARE_ENABLE
4382void 4648void
4383ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4649ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4384{ 4650{
4385 if (expect_false (ev_is_active (w))) 4651 if (expect_false (ev_is_active (w)))
4386 return; 4652 return;
4387 4653
4388 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4393 4659
4394 EV_FREQUENT_CHECK; 4660 EV_FREQUENT_CHECK;
4395} 4661}
4396 4662
4397void 4663void
4398ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4664ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4399{ 4665{
4400 clear_pending (EV_A_ (W)w); 4666 clear_pending (EV_A_ (W)w);
4401 if (expect_false (!ev_is_active (w))) 4667 if (expect_false (!ev_is_active (w)))
4402 return; 4668 return;
4403 4669
4416} 4682}
4417#endif 4683#endif
4418 4684
4419#if EV_CHECK_ENABLE 4685#if EV_CHECK_ENABLE
4420void 4686void
4421ev_check_start (EV_P_ ev_check *w) EV_THROW 4687ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4422{ 4688{
4423 if (expect_false (ev_is_active (w))) 4689 if (expect_false (ev_is_active (w)))
4424 return; 4690 return;
4425 4691
4426 EV_FREQUENT_CHECK; 4692 EV_FREQUENT_CHECK;
4431 4697
4432 EV_FREQUENT_CHECK; 4698 EV_FREQUENT_CHECK;
4433} 4699}
4434 4700
4435void 4701void
4436ev_check_stop (EV_P_ ev_check *w) EV_THROW 4702ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4437{ 4703{
4438 clear_pending (EV_A_ (W)w); 4704 clear_pending (EV_A_ (W)w);
4439 if (expect_false (!ev_is_active (w))) 4705 if (expect_false (!ev_is_active (w)))
4440 return; 4706 return;
4441 4707
4453 EV_FREQUENT_CHECK; 4719 EV_FREQUENT_CHECK;
4454} 4720}
4455#endif 4721#endif
4456 4722
4457#if EV_EMBED_ENABLE 4723#if EV_EMBED_ENABLE
4458void noinline 4724noinline
4725void
4459ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4726ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4460{ 4727{
4461 ev_run (w->other, EVRUN_NOWAIT); 4728 ev_run (w->other, EVRUN_NOWAIT);
4462} 4729}
4463 4730
4464static void 4731static void
4512 ev_idle_stop (EV_A_ idle); 4779 ev_idle_stop (EV_A_ idle);
4513} 4780}
4514#endif 4781#endif
4515 4782
4516void 4783void
4517ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4784ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4518{ 4785{
4519 if (expect_false (ev_is_active (w))) 4786 if (expect_false (ev_is_active (w)))
4520 return; 4787 return;
4521 4788
4522 { 4789 {
4543 4810
4544 EV_FREQUENT_CHECK; 4811 EV_FREQUENT_CHECK;
4545} 4812}
4546 4813
4547void 4814void
4548ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4815ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4549{ 4816{
4550 clear_pending (EV_A_ (W)w); 4817 clear_pending (EV_A_ (W)w);
4551 if (expect_false (!ev_is_active (w))) 4818 if (expect_false (!ev_is_active (w)))
4552 return; 4819 return;
4553 4820
4563} 4830}
4564#endif 4831#endif
4565 4832
4566#if EV_FORK_ENABLE 4833#if EV_FORK_ENABLE
4567void 4834void
4568ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4835ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4569{ 4836{
4570 if (expect_false (ev_is_active (w))) 4837 if (expect_false (ev_is_active (w)))
4571 return; 4838 return;
4572 4839
4573 EV_FREQUENT_CHECK; 4840 EV_FREQUENT_CHECK;
4578 4845
4579 EV_FREQUENT_CHECK; 4846 EV_FREQUENT_CHECK;
4580} 4847}
4581 4848
4582void 4849void
4583ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4850ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4584{ 4851{
4585 clear_pending (EV_A_ (W)w); 4852 clear_pending (EV_A_ (W)w);
4586 if (expect_false (!ev_is_active (w))) 4853 if (expect_false (!ev_is_active (w)))
4587 return; 4854 return;
4588 4855
4601} 4868}
4602#endif 4869#endif
4603 4870
4604#if EV_CLEANUP_ENABLE 4871#if EV_CLEANUP_ENABLE
4605void 4872void
4606ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4873ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4607{ 4874{
4608 if (expect_false (ev_is_active (w))) 4875 if (expect_false (ev_is_active (w)))
4609 return; 4876 return;
4610 4877
4611 EV_FREQUENT_CHECK; 4878 EV_FREQUENT_CHECK;
4618 ev_unref (EV_A); 4885 ev_unref (EV_A);
4619 EV_FREQUENT_CHECK; 4886 EV_FREQUENT_CHECK;
4620} 4887}
4621 4888
4622void 4889void
4623ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4890ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4624{ 4891{
4625 clear_pending (EV_A_ (W)w); 4892 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 4893 if (expect_false (!ev_is_active (w)))
4627 return; 4894 return;
4628 4895
4642} 4909}
4643#endif 4910#endif
4644 4911
4645#if EV_ASYNC_ENABLE 4912#if EV_ASYNC_ENABLE
4646void 4913void
4647ev_async_start (EV_P_ ev_async *w) EV_THROW 4914ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4648{ 4915{
4649 if (expect_false (ev_is_active (w))) 4916 if (expect_false (ev_is_active (w)))
4650 return; 4917 return;
4651 4918
4652 w->sent = 0; 4919 w->sent = 0;
4661 4928
4662 EV_FREQUENT_CHECK; 4929 EV_FREQUENT_CHECK;
4663} 4930}
4664 4931
4665void 4932void
4666ev_async_stop (EV_P_ ev_async *w) EV_THROW 4933ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4667{ 4934{
4668 clear_pending (EV_A_ (W)w); 4935 clear_pending (EV_A_ (W)w);
4669 if (expect_false (!ev_is_active (w))) 4936 if (expect_false (!ev_is_active (w)))
4670 return; 4937 return;
4671 4938
4682 4949
4683 EV_FREQUENT_CHECK; 4950 EV_FREQUENT_CHECK;
4684} 4951}
4685 4952
4686void 4953void
4687ev_async_send (EV_P_ ev_async *w) EV_THROW 4954ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4688{ 4955{
4689 w->sent = 1; 4956 w->sent = 1;
4690 evpipe_write (EV_A_ &async_pending); 4957 evpipe_write (EV_A_ &async_pending);
4691} 4958}
4692#endif 4959#endif
4729 4996
4730 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));
4731} 4998}
4732 4999
4733void 5000void
4734ev_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
4735{ 5002{
4736 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));
4737 5004
4738 if (expect_false (!once)) 5005 if (expect_false (!once))
4739 { 5006 {
4760} 5027}
4761 5028
4762/*****************************************************************************/ 5029/*****************************************************************************/
4763 5030
4764#if EV_WALK_ENABLE 5031#if EV_WALK_ENABLE
4765void ecb_cold 5032ecb_cold
5033void
4766ev_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
4767{ 5035{
4768 int i, j; 5036 int i, j;
4769 ev_watcher_list *wl, *wn; 5037 ev_watcher_list *wl, *wn;
4770 5038
4771 if (types & (EV_IO | EV_EMBED)) 5039 if (types & (EV_IO | EV_EMBED))

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