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Comparing libev/ev.c (file contents):
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 UTC vs.
Revision 1.489 by root, Sat Dec 29 14:23:20 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 *
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
363 365
364#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 368#endif
367 369
368#ifdef ANDROID 370#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 371/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 372# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 373# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 375# undef EV_USE_CLOCK_SYSCALL
532 534
533#ifndef ECB_H 535#ifndef ECB_H
534#define ECB_H 536#define ECB_H
535 537
536/* 16 bits major, 16 bits minor */ 538/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 539#define ECB_VERSION 0x00010005
538 540
539#ifdef _WIN32 541#ifdef _WIN32
540 typedef signed char int8_t; 542 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 544 typedef signed short int16_t;
559 typedef uint32_t uintptr_t; 561 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 562 typedef int32_t intptr_t;
561 #endif 563 #endif
562#else 564#else
563 #include <inttypes.h> 565 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 567 #define ECB_PTRSIZE 8
566 #else 568 #else
567 #define ECB_PTRSIZE 4 569 #define ECB_PTRSIZE 4
568 #endif 570 #endif
569#endif 571#endif
607 #define ECB_CLANG_EXTENSION(x) 0 609 #define ECB_CLANG_EXTENSION(x) 0
608#endif 610#endif
609 611
610#define ECB_CPP (__cplusplus+0) 612#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 613#define ECB_CPP11 (__cplusplus >= 201103L)
614#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
612 616
613#if ECB_CPP 617#if ECB_CPP
614 #define ECB_C 0 618 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 619 #define ECB_STDC_VERSION 0
616#else 620#else
618 #define ECB_STDC_VERSION __STDC_VERSION__ 622 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 623#endif
620 624
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 628
624#if ECB_CPP 629#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 630 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 632 #define ECB_EXTERN_C_END }
640 #define ECB_NO_SMP 1 645 #define ECB_NO_SMP 1
641#endif 646#endif
642 647
643#if ECB_NO_SMP 648#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0) 649 #define ECB_MEMORY_FENCE do { } while (0)
650#endif
651
652/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
653#if __xlC__ && ECB_CPP
654 #include <builtins.h>
655#endif
656
657#if 1400 <= _MSC_VER
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
645#endif 659#endif
646 660
647#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
648 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
649 #if __i386 || __i386__ 663 #if __i386 || __i386__
650 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
651 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
652 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
653 #elif ECB_GCC_AMD64 667 #elif ECB_GCC_AMD64
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
655 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
656 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
657 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
673 #elif defined __ARM_ARCH_2__ \
674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
676 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
677 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
678 || defined __ARM_ARCH_5TEJ__
679 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
659 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 680 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
660 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 681 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
682 || defined __ARM_ARCH_6T2__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
662 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 684 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
663 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 685 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
665 #elif __aarch64__ 687 #elif __aarch64__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
667 #elif (__sparc || __sparc__) && !__sparcv8 689 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
671 #elif defined __s390__ || defined __s390x__ 693 #elif defined __s390__ || defined __s390x__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
844 #define ecb_deprecated __declspec (deprecated) 866 #define ecb_deprecated __declspec (deprecated)
845#else 867#else
846 #define ecb_deprecated ecb_attribute ((__deprecated__)) 868 #define ecb_deprecated ecb_attribute ((__deprecated__))
847#endif 869#endif
848 870
849#if __MSC_VER >= 1500 871#if _MSC_VER >= 1500
850 #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) 872 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
851#elif ECB_GCC_VERSION(4,5) 873#elif ECB_GCC_VERSION(4,5)
852 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) 874 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
853#else 875#else
854 #define ecb_deprecated_message(msg) ecb_deprecated 876 #define ecb_deprecated_message(msg) ecb_deprecated
863#define ecb_unused ecb_attribute ((__unused__)) 885#define ecb_unused ecb_attribute ((__unused__))
864#define ecb_const ecb_attribute ((__const__)) 886#define ecb_const ecb_attribute ((__const__))
865#define ecb_pure ecb_attribute ((__pure__)) 887#define ecb_pure ecb_attribute ((__pure__))
866 888
867#if ECB_C11 || __IBMC_NORETURN 889#if ECB_C11 || __IBMC_NORETURN
868 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */ 890 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
869 #define ecb_noreturn _Noreturn 891 #define ecb_noreturn _Noreturn
870#elif ECB_CPP11 892#elif ECB_CPP11
871 #define ecb_noreturn [[noreturn]] 893 #define ecb_noreturn [[noreturn]]
872#elif _MSC_VER >= 1200 894#elif _MSC_VER >= 1200
873 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ 895 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
910#else 932#else
911 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 933 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
912 ecb_function_ ecb_const int 934 ecb_function_ ecb_const int
913 ecb_ctz32 (uint32_t x) 935 ecb_ctz32 (uint32_t x)
914 { 936 {
937#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
938 unsigned long r;
939 _BitScanForward (&r, x);
940 return (int)r;
941#else
915 int r = 0; 942 int r = 0;
916 943
917 x &= ~x + 1; /* this isolates the lowest bit */ 944 x &= ~x + 1; /* this isolates the lowest bit */
918 945
919#if ECB_branchless_on_i386 946#if ECB_branchless_on_i386
929 if (x & 0xff00ff00) r += 8; 956 if (x & 0xff00ff00) r += 8;
930 if (x & 0xffff0000) r += 16; 957 if (x & 0xffff0000) r += 16;
931#endif 958#endif
932 959
933 return r; 960 return r;
961#endif
934 } 962 }
935 963
936 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 964 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
937 ecb_function_ ecb_const int 965 ecb_function_ ecb_const int
938 ecb_ctz64 (uint64_t x) 966 ecb_ctz64 (uint64_t x)
939 { 967 {
968#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
969 unsigned long r;
970 _BitScanForward64 (&r, x);
971 return (int)r;
972#else
940 int shift = x & 0xffffffffU ? 0 : 32; 973 int shift = x & 0xffffffff ? 0 : 32;
941 return ecb_ctz32 (x >> shift) + shift; 974 return ecb_ctz32 (x >> shift) + shift;
975#endif
942 } 976 }
943 977
944 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 978 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
945 ecb_function_ ecb_const int 979 ecb_function_ ecb_const int
946 ecb_popcount32 (uint32_t x) 980 ecb_popcount32 (uint32_t x)
954 } 988 }
955 989
956 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 990 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
957 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 991 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
958 { 992 {
993#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanReverse (&r, x);
996 return (int)r;
997#else
959 int r = 0; 998 int r = 0;
960 999
961 if (x >> 16) { x >>= 16; r += 16; } 1000 if (x >> 16) { x >>= 16; r += 16; }
962 if (x >> 8) { x >>= 8; r += 8; } 1001 if (x >> 8) { x >>= 8; r += 8; }
963 if (x >> 4) { x >>= 4; r += 4; } 1002 if (x >> 4) { x >>= 4; r += 4; }
964 if (x >> 2) { x >>= 2; r += 2; } 1003 if (x >> 2) { x >>= 2; r += 2; }
965 if (x >> 1) { r += 1; } 1004 if (x >> 1) { r += 1; }
966 1005
967 return r; 1006 return r;
1007#endif
968 } 1008 }
969 1009
970 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1010 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
971 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1011 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
972 { 1012 {
1013#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1014 unsigned long r;
1015 _BitScanReverse64 (&r, x);
1016 return (int)r;
1017#else
973 int r = 0; 1018 int r = 0;
974 1019
975 if (x >> 32) { x >>= 32; r += 32; } 1020 if (x >> 32) { x >>= 32; r += 32; }
976 1021
977 return r + ecb_ld32 (x); 1022 return r + ecb_ld32 (x);
1023#endif
978 } 1024 }
979#endif 1025#endif
980 1026
981ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1027ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
982ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1028ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1039ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1040ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1041ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1042 1088
1043#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else
1044 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1094 #endif
1045 #define ecb_bswap32(x) __builtin_bswap32 (x) 1095 #define ecb_bswap32(x) __builtin_bswap32 (x)
1046 #define ecb_bswap64(x) __builtin_bswap64 (x) 1096 #define ecb_bswap64(x) __builtin_bswap64 (x)
1097#elif _MSC_VER
1098 #include <stdlib.h>
1099 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1100 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1101 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1047#else 1102#else
1048 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); 1103 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1049 ecb_function_ ecb_const uint16_t 1104 ecb_function_ ecb_const uint16_t
1050 ecb_bswap16 (uint16_t x) 1105 ecb_bswap16 (uint16_t x)
1051 { 1106 {
1076#endif 1131#endif
1077 1132
1078/* try to tell the compiler that some condition is definitely true */ 1133/* try to tell the compiler that some condition is definitely true */
1079#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1134#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1080 1135
1081ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1136ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1082ecb_inline ecb_const unsigned char 1137ecb_inline ecb_const uint32_t
1083ecb_byteorder_helper (void) 1138ecb_byteorder_helper (void)
1084{ 1139{
1085 /* the union code still generates code under pressure in gcc, */ 1140 /* the union code still generates code under pressure in gcc, */
1086 /* but less than using pointers, and always seems to */ 1141 /* but less than using pointers, and always seems to */
1087 /* successfully return a constant. */ 1142 /* successfully return a constant. */
1088 /* the reason why we have this horrible preprocessor mess */ 1143 /* the reason why we have this horrible preprocessor mess */
1089 /* is to avoid it in all cases, at least on common architectures */ 1144 /* is to avoid it in all cases, at least on common architectures */
1090 /* or when using a recent enough gcc version (>= 4.6) */ 1145 /* or when using a recent enough gcc version (>= 4.6) */
1091#if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64
1092 return 0x44;
1093#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1146#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1147 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1148 #define ECB_LITTLE_ENDIAN 1
1094 return 0x44; 1149 return 0x44332211;
1095#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1150#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1151 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1152 #define ECB_BIG_ENDIAN 1
1096 return 0x11; 1153 return 0x11223344;
1097#else 1154#else
1098 union 1155 union
1099 { 1156 {
1157 uint8_t c[4];
1100 uint32_t i; 1158 uint32_t u;
1101 uint8_t c;
1102 } u = { 0x11223344 }; 1159 } u = { 0x11, 0x22, 0x33, 0x44 };
1103 return u.c; 1160 return u.u;
1104#endif 1161#endif
1105} 1162}
1106 1163
1107ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1164ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1108ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1109ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1166ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1110ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1111 1168
1112#if ECB_GCC_VERSION(3,0) || ECB_C99 1169#if ECB_GCC_VERSION(3,0) || ECB_C99
1113 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1114#else 1171#else
1115 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1139 return N; 1196 return N;
1140 } 1197 }
1141#else 1198#else
1142 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1143#endif 1200#endif
1201
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x)
1205{
1206 unsigned int s = (x & 0x8000) << (31 - 15);
1207 int e = (x >> 10) & 0x001f;
1208 unsigned int m = x & 0x03ff;
1209
1210 if (ecb_expect_false (e == 31))
1211 /* infinity or NaN */
1212 e = 255 - (127 - 15);
1213 else if (ecb_expect_false (!e))
1214 {
1215 if (ecb_expect_true (!m))
1216 /* zero, handled by code below by forcing e to 0 */
1217 e = 0 - (127 - 15);
1218 else
1219 {
1220 /* subnormal, renormalise */
1221 unsigned int s = 10 - ecb_ld32 (m);
1222
1223 m = (m << s) & 0x3ff; /* mask implicit bit */
1224 e -= s - 1;
1225 }
1226 }
1227
1228 /* e and m now are normalised, or zero, (or inf or nan) */
1229 e += 127 - 15;
1230
1231 return s | (e << 23) | (m << (23 - 10));
1232}
1233
1234ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1235ecb_function_ ecb_const uint16_t
1236ecb_binary32_to_binary16 (uint32_t x)
1237{
1238 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1239 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1240 unsigned int m = x & 0x007fffff;
1241
1242 x &= 0x7fffffff;
1243
1244 /* if it's within range of binary16 normals, use fast path */
1245 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1246 {
1247 /* mantissa round-to-even */
1248 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1249
1250 /* handle overflow */
1251 if (ecb_expect_false (m >= 0x00800000))
1252 {
1253 m >>= 1;
1254 e += 1;
1255 }
1256
1257 return s | (e << 10) | (m >> (23 - 10));
1258 }
1259
1260 /* handle large numbers and infinity */
1261 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1262 return s | 0x7c00;
1263
1264 /* handle zero, subnormals and small numbers */
1265 if (ecb_expect_true (x < 0x38800000))
1266 {
1267 /* zero */
1268 if (ecb_expect_true (!x))
1269 return s;
1270
1271 /* handle subnormals */
1272
1273 /* too small, will be zero */
1274 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1275 return s;
1276
1277 m |= 0x00800000; /* make implicit bit explicit */
1278
1279 /* very tricky - we need to round to the nearest e (+10) bit value */
1280 {
1281 unsigned int bits = 14 - e;
1282 unsigned int half = (1 << (bits - 1)) - 1;
1283 unsigned int even = (m >> bits) & 1;
1284
1285 /* if this overflows, we will end up with a normalised number */
1286 m = (m + half + even) >> bits;
1287 }
1288
1289 return s | m;
1290 }
1291
1292 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1293 m >>= 13;
1294
1295 return s | 0x7c00 | m | !m;
1296}
1144 1297
1145/*******************************************************************************/ 1298/*******************************************************************************/
1146/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1299/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1147 1300
1148/* basically, everything uses "ieee pure-endian" floating point numbers */ 1301/* basically, everything uses "ieee pure-endian" floating point numbers */
1185 #define ECB_NAN ECB_INFINITY 1338 #define ECB_NAN ECB_INFINITY
1186 #endif 1339 #endif
1187 1340
1188 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L 1341 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1189 #define ecb_ldexpf(x,e) ldexpf ((x), (e)) 1342 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1343 #define ecb_frexpf(x,e) frexpf ((x), (e))
1190 #else 1344 #else
1191 #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e)) 1345 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1346 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1192 #endif 1347 #endif
1193
1194 /* converts an ieee half/binary16 to a float */
1195 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1196 ecb_function_ ecb_const float
1197 ecb_binary16_to_float (uint16_t x)
1198 {
1199 int e = (x >> 10) & 0x1f;
1200 int m = x & 0x3ff;
1201 float r;
1202
1203 if (!e ) r = ecb_ldexpf (m , -24);
1204 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1205 else if (m ) r = ECB_NAN;
1206 else r = ECB_INFINITY;
1207
1208 return x & 0x8000 ? -r : r;
1209 }
1210 1348
1211 /* convert a float to ieee single/binary32 */ 1349 /* convert a float to ieee single/binary32 */
1212 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1350 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1213 ecb_function_ ecb_const uint32_t 1351 ecb_function_ ecb_const uint32_t
1214 ecb_float_to_binary32 (float x) 1352 ecb_float_to_binary32 (float x)
1225 if (x == 0e0f ) return 0x00000000U; 1363 if (x == 0e0f ) return 0x00000000U;
1226 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1364 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1227 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1365 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1228 if (x != x ) return 0x7fbfffffU; 1366 if (x != x ) return 0x7fbfffffU;
1229 1367
1230 m = frexpf (x, &e) * 0x1000000U; 1368 m = ecb_frexpf (x, &e) * 0x1000000U;
1231 1369
1232 r = m & 0x80000000U; 1370 r = m & 0x80000000U;
1233 1371
1234 if (r) 1372 if (r)
1235 m = -m; 1373 m = -m;
1344 1482
1345 r = neg ? -r : r; 1483 r = neg ? -r : r;
1346 #endif 1484 #endif
1347 1485
1348 return r; 1486 return r;
1487 }
1488
1489 /* convert a float to ieee half/binary16 */
1490 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1491 ecb_function_ ecb_const uint16_t
1492 ecb_float_to_binary16 (float x)
1493 {
1494 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1495 }
1496
1497 /* convert an ieee half/binary16 to float */
1498 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1499 ecb_function_ ecb_const float
1500 ecb_binary16_to_float (uint16_t x)
1501 {
1502 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1349 } 1503 }
1350 1504
1351#endif 1505#endif
1352 1506
1353#endif 1507#endif
1378#define inline_size ecb_inline 1532#define inline_size ecb_inline
1379 1533
1380#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
1381# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
1382#else 1536#else
1383# define inline_speed static noinline 1537# define inline_speed noinline static
1384#endif 1538#endif
1385 1539
1386#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1387 1541
1388#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
1435#else 1589#else
1436 1590
1437#include <float.h> 1591#include <float.h>
1438 1592
1439/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1440static ev_tstamp noinline 1595static ev_tstamp
1441ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1442{ 1597{
1443 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1444#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1445 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1477 1632
1478#ifdef __linux 1633#ifdef __linux
1479# include <sys/utsname.h> 1634# include <sys/utsname.h>
1480#endif 1635#endif
1481 1636
1482static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1483ev_linux_version (void) 1639ev_linux_version (void)
1484{ 1640{
1485#ifdef __linux 1641#ifdef __linux
1486 unsigned int v = 0; 1642 unsigned int v = 0;
1487 struct utsname buf; 1643 struct utsname buf;
1516} 1672}
1517 1673
1518/*****************************************************************************/ 1674/*****************************************************************************/
1519 1675
1520#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1521static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1522ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1523{ 1680{
1524 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1525} 1682}
1526#endif 1683#endif
1527 1684
1528static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1529 1686
1530void ecb_cold 1687ecb_cold
1688void
1531ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1532{ 1690{
1533 syserr_cb = cb; 1691 syserr_cb = cb;
1534} 1692}
1535 1693
1536static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1537ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1538{ 1697{
1539 if (!msg) 1698 if (!msg)
1540 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1541 1700
1554 abort (); 1713 abort ();
1555 } 1714 }
1556} 1715}
1557 1716
1558static void * 1717static void *
1559ev_realloc_emul (void *ptr, long size) EV_THROW 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1560{ 1719{
1561 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1562 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1563 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1564 * recently, also (at least) fedora and debian started breaking it, 1723 * recently, also (at least) fedora and debian started breaking it,
1570 1729
1571 free (ptr); 1730 free (ptr);
1572 return 0; 1731 return 0;
1573} 1732}
1574 1733
1575static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1576 1735
1577void ecb_cold 1736ecb_cold
1737void
1578ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1579{ 1739{
1580 alloc = cb; 1740 alloc = cb;
1581} 1741}
1582 1742
1583inline_speed void * 1743inline_speed void *
1700 1860
1701/*****************************************************************************/ 1861/*****************************************************************************/
1702 1862
1703#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1704ev_tstamp 1864ev_tstamp
1705ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1706{ 1866{
1707#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1708 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1709 { 1869 {
1710 struct timespec ts; 1870 struct timespec ts;
1734 return ev_time (); 1894 return ev_time ();
1735} 1895}
1736 1896
1737#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1738ev_tstamp 1898ev_tstamp
1739ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1740{ 1900{
1741 return ev_rt_now; 1901 return ev_rt_now;
1742} 1902}
1743#endif 1903#endif
1744 1904
1745void 1905void
1746ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1747{ 1907{
1748 if (delay > 0.) 1908 if (delay > 0.)
1749 { 1909 {
1750#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1751 struct timespec ts; 1911 struct timespec ts;
1752 1912
1753 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1754 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1755#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1756 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1757#else 1919#else
1758 struct timeval tv; 1920 struct timeval tv;
1759 1921
1760 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1791 } 1953 }
1792 1954
1793 return ncur; 1955 return ncur;
1794} 1956}
1795 1957
1796static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1797array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1798{ 1961{
1799 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1800 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1801} 1964}
1804 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1805 1968
1806#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1807 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1808 { \ 1971 { \
1809 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1810 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1811 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1812 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1813 } 1976 }
1814 1977
1826 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1827 1990
1828/*****************************************************************************/ 1991/*****************************************************************************/
1829 1992
1830/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1831static void noinline 1994noinline
1995static void
1832pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1833{ 1997{
1834} 1998}
1835 1999
1836void noinline 2000noinline
2001void
1837ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1838{ 2003{
1839 W w_ = (W)w; 2004 W w_ = (W)w;
1840 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1841 2006
1842 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
1903 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
1904 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1905} 2070}
1906 2071
1907void 2072void
1908ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1909{ 2074{
1910 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
1911 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
1912} 2077}
1913 2078
1971 2136
1972 fdchangecnt = 0; 2137 fdchangecnt = 0;
1973} 2138}
1974 2139
1975/* something about the given fd changed */ 2140/* something about the given fd changed */
1976inline_size void 2141inline_size
2142void
1977fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
1978{ 2144{
1979 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
1980 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
1981 2147
1986 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
1987 } 2153 }
1988} 2154}
1989 2155
1990/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1991inline_speed void ecb_cold 2157inline_speed ecb_cold void
1992fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
1993{ 2159{
1994 ev_io *w; 2160 ev_io *w;
1995 2161
1996 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
1999 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2000 } 2166 }
2001} 2167}
2002 2168
2003/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
2004inline_size int ecb_cold 2170inline_size ecb_cold int
2005fd_valid (int fd) 2171fd_valid (int fd)
2006{ 2172{
2007#ifdef _WIN32 2173#ifdef _WIN32
2008 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2009#else 2175#else
2010 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
2011#endif 2177#endif
2012} 2178}
2013 2179
2014/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
2015static void noinline ecb_cold 2181noinline ecb_cold
2182static void
2016fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
2017{ 2184{
2018 int fd; 2185 int fd;
2019 2186
2020 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
2022 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
2023 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
2024} 2191}
2025 2192
2026/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
2027static void noinline ecb_cold 2194noinline ecb_cold
2195static void
2028fd_enomem (EV_P) 2196fd_enomem (EV_P)
2029{ 2197{
2030 int fd; 2198 int fd;
2031 2199
2032 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
2036 break; 2204 break;
2037 } 2205 }
2038} 2206}
2039 2207
2040/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
2041static void noinline 2209noinline
2210static void
2042fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
2043{ 2212{
2044 int fd; 2213 int fd;
2045 2214
2046 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
2227 2396
2228/*****************************************************************************/ 2397/*****************************************************************************/
2229 2398
2230#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2231 2400
2232static void noinline ecb_cold 2401noinline ecb_cold
2402static void
2233evpipe_init (EV_P) 2403evpipe_init (EV_P)
2234{ 2404{
2235 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
2236 { 2406 {
2237 int fds [2]; 2407 int fds [2];
2308#endif 2478#endif
2309 { 2479 {
2310#ifdef _WIN32 2480#ifdef _WIN32
2311 WSABUF buf; 2481 WSABUF buf;
2312 DWORD sent; 2482 DWORD sent;
2313 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
2314 buf.len = 1; 2484 buf.len = 1;
2315 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2316#else 2486#else
2317 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
2318#endif 2488#endif
2390} 2560}
2391 2561
2392/*****************************************************************************/ 2562/*****************************************************************************/
2393 2563
2394void 2564void
2395ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
2396{ 2566{
2397#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2398 EV_P; 2568 EV_P;
2399 ECB_MEMORY_FENCE_ACQUIRE; 2569 ECB_MEMORY_FENCE_ACQUIRE;
2400 EV_A = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
2415#endif 2585#endif
2416 2586
2417 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
2418} 2588}
2419 2589
2420void noinline 2590noinline
2591void
2421ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2422{ 2593{
2423 WL w; 2594 WL w;
2424 2595
2425 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
2426 return; 2597 return;
2542#endif 2713#endif
2543#if EV_USE_SELECT 2714#if EV_USE_SELECT
2544# include "ev_select.c" 2715# include "ev_select.c"
2545#endif 2716#endif
2546 2717
2547int ecb_cold 2718ecb_cold int
2548ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2549{ 2720{
2550 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2551} 2722}
2552 2723
2553int ecb_cold 2724ecb_cold int
2554ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2555{ 2726{
2556 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2557} 2728}
2558 2729
2559/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2560int inline_size ecb_cold 2731inline_size ecb_cold int
2561enable_secure (void) 2732enable_secure (void)
2562{ 2733{
2563#ifdef _WIN32 2734#ifdef _WIN32
2564 return 0; 2735 return 0;
2565#else 2736#else
2566 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2567 || getgid () != getegid (); 2738 || getgid () != getegid ();
2568#endif 2739#endif
2569} 2740}
2570 2741
2571unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2572ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2573{ 2745{
2574 unsigned int flags = 0; 2746 unsigned int flags = 0;
2575 2747
2576 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2577 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
2580 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2581 2753
2582 return flags; 2754 return flags;
2583} 2755}
2584 2756
2585unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2586ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2587{ 2760{
2588 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2589 2762
2590#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2591 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
2602#endif 2775#endif
2603 2776
2604 return flags; 2777 return flags;
2605} 2778}
2606 2779
2607unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2608ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2609{ 2783{
2610 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2611 2785
2612 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2613 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2615 2789
2616 return flags; 2790 return flags;
2617} 2791}
2618 2792
2619unsigned int 2793unsigned int
2620ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2621{ 2795{
2622 return backend; 2796 return backend;
2623} 2797}
2624 2798
2625#if EV_FEATURE_API 2799#if EV_FEATURE_API
2626unsigned int 2800unsigned int
2627ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2628{ 2802{
2629 return loop_count; 2803 return loop_count;
2630} 2804}
2631 2805
2632unsigned int 2806unsigned int
2633ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2634{ 2808{
2635 return loop_depth; 2809 return loop_depth;
2636} 2810}
2637 2811
2638void 2812void
2639ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2640{ 2814{
2641 io_blocktime = interval; 2815 io_blocktime = interval;
2642} 2816}
2643 2817
2644void 2818void
2645ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2646{ 2820{
2647 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2648} 2822}
2649 2823
2650void 2824void
2651ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2652{ 2826{
2653 userdata = data; 2827 userdata = data;
2654} 2828}
2655 2829
2656void * 2830void *
2657ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2658{ 2832{
2659 return userdata; 2833 return userdata;
2660} 2834}
2661 2835
2662void 2836void
2663ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2664{ 2838{
2665 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2666} 2840}
2667 2841
2668void 2842void
2669ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2670{ 2844{
2671 release_cb = release; 2845 release_cb = release;
2672 acquire_cb = acquire; 2846 acquire_cb = acquire;
2673} 2847}
2674#endif 2848#endif
2675 2849
2676/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2677static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2678loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2679{ 2854{
2680 if (!backend) 2855 if (!backend)
2681 { 2856 {
2682 origflags = flags; 2857 origflags = flags;
2683 2858
2769#endif 2944#endif
2770 } 2945 }
2771} 2946}
2772 2947
2773/* free up a loop structure */ 2948/* free up a loop structure */
2774void ecb_cold 2949ecb_cold
2950void
2775ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2776{ 2952{
2777 int i; 2953 int i;
2778 2954
2779#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
2900#if EV_USE_INOTIFY 3076#if EV_USE_INOTIFY
2901 infy_fork (EV_A); 3077 infy_fork (EV_A);
2902#endif 3078#endif
2903 3079
2904#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2905 if (ev_is_active (&pipe_w)) 3081 if (ev_is_active (&pipe_w) && postfork != 2)
2906 { 3082 {
2907 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2908 3084
2909 ev_ref (EV_A); 3085 ev_ref (EV_A);
2910 ev_io_stop (EV_A_ &pipe_w); 3086 ev_io_stop (EV_A_ &pipe_w);
2921 postfork = 0; 3097 postfork = 0;
2922} 3098}
2923 3099
2924#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
2925 3101
3102ecb_cold
2926struct ev_loop * ecb_cold 3103struct ev_loop *
2927ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
2928{ 3105{
2929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2930 3107
2931 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
2932 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
2939} 3116}
2940 3117
2941#endif /* multiplicity */ 3118#endif /* multiplicity */
2942 3119
2943#if EV_VERIFY 3120#if EV_VERIFY
2944static void noinline ecb_cold 3121noinline ecb_cold
3122static void
2945verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
2946{ 3124{
2947 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2948 3126
2949 if (w->pending) 3127 if (w->pending)
2950 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2951} 3129}
2952 3130
2953static void noinline ecb_cold 3131noinline ecb_cold
3132static void
2954verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
2955{ 3134{
2956 int i; 3135 int i;
2957 3136
2958 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
2963 3142
2964 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2965 } 3144 }
2966} 3145}
2967 3146
2968static void noinline ecb_cold 3147noinline ecb_cold
3148static void
2969array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
2970{ 3150{
2971 while (cnt--) 3151 while (cnt--)
2972 { 3152 {
2973 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
2976} 3156}
2977#endif 3157#endif
2978 3158
2979#if EV_FEATURE_API 3159#if EV_FEATURE_API
2980void ecb_cold 3160void ecb_cold
2981ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
2982{ 3162{
2983#if EV_VERIFY 3163#if EV_VERIFY
2984 int i; 3164 int i;
2985 WL w, w2; 3165 WL w, w2;
2986 3166
3062#endif 3242#endif
3063} 3243}
3064#endif 3244#endif
3065 3245
3066#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
3067struct ev_loop * ecb_cold 3248struct ev_loop *
3068#else 3249#else
3069int 3250int
3070#endif 3251#endif
3071ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
3072{ 3253{
3073 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
3074 { 3255 {
3075#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
3076 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
3095 3276
3096 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
3097} 3278}
3098 3279
3099void 3280void
3100ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
3101{ 3282{
3102 postfork = 1; 3283 postfork = 1;
3103} 3284}
3104 3285
3105/*****************************************************************************/ 3286/*****************************************************************************/
3109{ 3290{
3110 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
3111} 3292}
3112 3293
3113unsigned int 3294unsigned int
3114ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
3115{ 3296{
3116 int pri; 3297 int pri;
3117 unsigned int count = 0; 3298 unsigned int count = 0;
3118 3299
3119 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
3120 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
3121 3302
3122 return count; 3303 return count;
3123} 3304}
3124 3305
3125void noinline 3306noinline
3307void
3126ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
3127{ 3309{
3128 pendingpri = NUMPRI; 3310 pendingpri = NUMPRI;
3129 3311
3130 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3312 do
3131 { 3313 {
3132 --pendingpri; 3314 --pendingpri;
3133 3315
3316 /* pendingpri possibly gets modified in the inner loop */
3134 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
3135 { 3318 {
3136 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3137 3320
3138 p->w->pending = 0; 3321 p->w->pending = 0;
3139 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
3140 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
3141 } 3324 }
3142 } 3325 }
3326 while (pendingpri);
3143} 3327}
3144 3328
3145#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
3146/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
3147/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
3205 } 3389 }
3206} 3390}
3207 3391
3208#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
3209 3393
3210static void noinline 3394noinline
3395static void
3211periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
3212{ 3397{
3213 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3214 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3215 3400
3273 } 3458 }
3274} 3459}
3275 3460
3276/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
3277/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
3278static void noinline ecb_cold 3463noinline ecb_cold
3464static void
3279periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
3280{ 3466{
3281 int i; 3467 int i;
3282 3468
3283 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
3296 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
3297} 3483}
3298#endif 3484#endif
3299 3485
3300/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
3301static void noinline ecb_cold 3487noinline ecb_cold
3488static void
3302timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
3303{ 3490{
3304 int i; 3491 int i;
3305 3492
3306 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
3553 3740
3554 return activecnt; 3741 return activecnt;
3555} 3742}
3556 3743
3557void 3744void
3558ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3559{ 3746{
3560 loop_done = how; 3747 loop_done = how;
3561} 3748}
3562 3749
3563void 3750void
3564ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3565{ 3752{
3566 ++activecnt; 3753 ++activecnt;
3567} 3754}
3568 3755
3569void 3756void
3570ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3571{ 3758{
3572 --activecnt; 3759 --activecnt;
3573} 3760}
3574 3761
3575void 3762void
3576ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3577{ 3764{
3578 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3579} 3766}
3580 3767
3581void 3768void
3582ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3583{ 3770{
3584 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3585} 3772}
3586 3773
3587void 3774void
3588ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3589{ 3776{
3590 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3591 3778
3592 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3593 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
3632 w->pending = 0; 3819 w->pending = 0;
3633 } 3820 }
3634} 3821}
3635 3822
3636int 3823int
3637ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3638{ 3825{
3639 W w_ = (W)w; 3826 W w_ = (W)w;
3640 int pending = w_->pending; 3827 int pending = w_->pending;
3641 3828
3642 if (expect_true (pending)) 3829 if (expect_true (pending))
3674 w->active = 0; 3861 w->active = 0;
3675} 3862}
3676 3863
3677/*****************************************************************************/ 3864/*****************************************************************************/
3678 3865
3679void noinline 3866noinline
3867void
3680ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3681{ 3869{
3682 int fd = w->fd; 3870 int fd = w->fd;
3683 3871
3684 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3685 return; 3873 return;
3700 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3701 3889
3702 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3703} 3891}
3704 3892
3705void noinline 3893noinline
3894void
3706ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3707{ 3896{
3708 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3709 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3710 return; 3899 return;
3711 3900
3719 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3720 3909
3721 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3722} 3911}
3723 3912
3724void noinline 3913noinline
3914void
3725ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3726{ 3916{
3727 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3728 return; 3918 return;
3729 3919
3730 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
3743 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3744 3934
3745 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3746} 3936}
3747 3937
3748void noinline 3938noinline
3939void
3749ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3750{ 3941{
3751 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3752 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3753 return; 3944 return;
3754 3945
3773 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3774 3965
3775 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3776} 3967}
3777 3968
3778void noinline 3969noinline
3970void
3779ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3780{ 3972{
3781 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3782 3974
3783 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3784 3976
3801 3993
3802 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3803} 3995}
3804 3996
3805ev_tstamp 3997ev_tstamp
3806ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3807{ 3999{
3808 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3809} 4001}
3810 4002
3811#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3812void noinline 4004noinline
4005void
3813ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3814{ 4007{
3815 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3816 return; 4009 return;
3817 4010
3818 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
3837 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3838 4031
3839 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3840} 4033}
3841 4034
3842void noinline 4035noinline
4036void
3843ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3844{ 4038{
3845 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3846 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3847 return; 4041 return;
3848 4042
3865 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3866 4060
3867 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3868} 4062}
3869 4063
3870void noinline 4064noinline
4065void
3871ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3872{ 4067{
3873 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
3874 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
3875 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
3876} 4071}
3880# define SA_RESTART 0 4075# define SA_RESTART 0
3881#endif 4076#endif
3882 4077
3883#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
3884 4079
3885void noinline 4080noinline
4081void
3886ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3887{ 4083{
3888 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
3889 return; 4085 return;
3890 4086
3891 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3962 } 4158 }
3963 4159
3964 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
3965} 4161}
3966 4162
3967void noinline 4163noinline
4164void
3968ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3969{ 4166{
3970 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
3971 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
3972 return; 4169 return;
3973 4170
4004#endif 4201#endif
4005 4202
4006#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
4007 4204
4008void 4205void
4009ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4010{ 4207{
4011#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
4012 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4013#endif 4210#endif
4014 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
4021 4218
4022 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
4023} 4220}
4024 4221
4025void 4222void
4026ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4027{ 4224{
4028 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
4029 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
4030 return; 4227 return;
4031 4228
4048 4245
4049#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
4050#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4051#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
4052 4249
4053static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4054 4251
4055#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
4056 4253
4057/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4058# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4059 4256
4060static void noinline 4257noinline
4258static void
4061infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
4062{ 4260{
4063 w->wd = inotify_add_watch (fs_fd, w->path, 4261 w->wd = inotify_add_watch (fs_fd, w->path,
4064 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4065 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4129 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4130 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
4131 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4132} 4330}
4133 4331
4134static void noinline 4332noinline
4333static void
4135infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
4136{ 4335{
4137 int slot; 4336 int slot;
4138 int wd = w->wd; 4337 int wd = w->wd;
4139 4338
4146 4345
4147 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
4148 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
4149} 4348}
4150 4349
4151static void noinline 4350noinline
4351static void
4152infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4153{ 4353{
4154 if (slot < 0) 4354 if (slot < 0)
4155 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
4156 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
4192 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4193 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
4194 } 4394 }
4195} 4395}
4196 4396
4197inline_size void ecb_cold 4397inline_size ecb_cold
4398void
4198ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
4199{ 4400{
4200 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
4201 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4202 */ 4403 */
4292#else 4493#else
4293# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
4294#endif 4495#endif
4295 4496
4296void 4497void
4297ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4298{ 4499{
4299 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
4300 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
4301 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
4302 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
4303} 4504}
4304 4505
4305static void noinline 4506noinline
4507static void
4306stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4307{ 4509{
4308 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4309 4511
4310 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
4341 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
4342 } 4544 }
4343} 4545}
4344 4546
4345void 4547void
4346ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4347{ 4549{
4348 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
4349 return; 4551 return;
4350 4552
4351 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
4372 4574
4373 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
4374} 4576}
4375 4577
4376void 4578void
4377ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4378{ 4580{
4379 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
4380 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
4381 return; 4583 return;
4382 4584
4398} 4600}
4399#endif 4601#endif
4400 4602
4401#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
4402void 4604void
4403ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4404{ 4606{
4405 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
4406 return; 4608 return;
4407 4609
4408 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
4421 4623
4422 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
4423} 4625}
4424 4626
4425void 4627void
4426ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4427{ 4629{
4428 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
4429 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
4430 return; 4632 return;
4431 4633
4445} 4647}
4446#endif 4648#endif
4447 4649
4448#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4449void 4651void
4450ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4451{ 4653{
4452 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4453 return; 4655 return;
4454 4656
4455 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
4460 4662
4461 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4462} 4664}
4463 4665
4464void 4666void
4465ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4466{ 4668{
4467 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4468 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4469 return; 4671 return;
4470 4672
4483} 4685}
4484#endif 4686#endif
4485 4687
4486#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4487void 4689void
4488ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4489{ 4691{
4490 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4491 return; 4693 return;
4492 4694
4493 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
4498 4700
4499 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4500} 4702}
4501 4703
4502void 4704void
4503ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4504{ 4706{
4505 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4506 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4507 return; 4709 return;
4508 4710
4520 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4521} 4723}
4522#endif 4724#endif
4523 4725
4524#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4525void noinline 4727noinline
4728void
4526ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4527{ 4730{
4528 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4529} 4732}
4530 4733
4531static void 4734static void
4579 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4580} 4783}
4581#endif 4784#endif
4582 4785
4583void 4786void
4584ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4585{ 4788{
4586 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4587 return; 4790 return;
4588 4791
4589 { 4792 {
4610 4813
4611 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4612} 4815}
4613 4816
4614void 4817void
4615ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4616{ 4819{
4617 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4618 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4619 return; 4822 return;
4620 4823
4630} 4833}
4631#endif 4834#endif
4632 4835
4633#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4634void 4837void
4635ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4636{ 4839{
4637 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4638 return; 4841 return;
4639 4842
4640 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
4645 4848
4646 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4647} 4850}
4648 4851
4649void 4852void
4650ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4651{ 4854{
4652 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4653 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4654 return; 4857 return;
4655 4858
4668} 4871}
4669#endif 4872#endif
4670 4873
4671#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4672void 4875void
4673ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4674{ 4877{
4675 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4676 return; 4879 return;
4677 4880
4678 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
4685 ev_unref (EV_A); 4888 ev_unref (EV_A);
4686 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4687} 4890}
4688 4891
4689void 4892void
4690ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4691{ 4894{
4692 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4693 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4694 return; 4897 return;
4695 4898
4709} 4912}
4710#endif 4913#endif
4711 4914
4712#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4713void 4916void
4714ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4715{ 4918{
4716 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4717 return; 4920 return;
4718 4921
4719 w->sent = 0; 4922 w->sent = 0;
4728 4931
4729 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4730} 4933}
4731 4934
4732void 4935void
4733ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4734{ 4937{
4735 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4736 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4737 return; 4940 return;
4738 4941
4749 4952
4750 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4751} 4954}
4752 4955
4753void 4956void
4754ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4755{ 4958{
4756 w->sent = 1; 4959 w->sent = 1;
4757 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4758} 4961}
4759#endif 4962#endif
4796 4999
4797 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4798} 5001}
4799 5002
4800void 5003void
4801ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4802{ 5005{
4803 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4804
4805 if (expect_false (!once))
4806 {
4807 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4808 return;
4809 }
4810 5007
4811 once->cb = cb; 5008 once->cb = cb;
4812 once->arg = arg; 5009 once->arg = arg;
4813 5010
4814 ev_init (&once->io, once_cb_io); 5011 ev_init (&once->io, once_cb_io);
4827} 5024}
4828 5025
4829/*****************************************************************************/ 5026/*****************************************************************************/
4830 5027
4831#if EV_WALK_ENABLE 5028#if EV_WALK_ENABLE
4832void ecb_cold 5029ecb_cold
5030void
4833ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5031ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4834{ 5032{
4835 int i, j; 5033 int i, j;
4836 ev_watcher_list *wl, *wn; 5034 ev_watcher_list *wl, *wn;
4837 5035
4838 if (types & (EV_IO | EV_EMBED)) 5036 if (types & (EV_IO | EV_EMBED))

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