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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 1.480 by root, Thu Feb 18 04:48:05 2016 UTC

… …
532 532
533#ifndef ECB_H 533#ifndef ECB_H
534#define ECB_H 534#define ECB_H
535 535
536/* 16 bits major, 16 bits minor */ 536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 537#define ECB_VERSION 0x00010005
538 538
539#ifdef _WIN32 539#ifdef _WIN32
540 typedef signed char int8_t; 540 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 541 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 542 typedef signed short int16_t;
… …
559 typedef uint32_t uintptr_t; 559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 560 typedef int32_t intptr_t;
561 #endif 561 #endif
562#else 562#else
563 #include <inttypes.h> 563 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 564 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 565 #define ECB_PTRSIZE 8
566 #else 566 #else
567 #define ECB_PTRSIZE 4 567 #define ECB_PTRSIZE 4
568 #endif 568 #endif
569#endif 569#endif
… …
640 #define ECB_NO_SMP 1 640 #define ECB_NO_SMP 1
641#endif 641#endif
642 642
643#if ECB_NO_SMP 643#if ECB_NO_SMP
644 #define ECB_MEMORY_FENCE do { } while (0) 644 #define ECB_MEMORY_FENCE do { } while (0)
645#endif
646
647/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
648#if __xlC__ && ECB_CPP
649 #include <builtins.h>
650#endif
651
652#if 1400 <= _MSC_VER
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
645#endif 654#endif
646 655
647#ifndef ECB_MEMORY_FENCE 656#ifndef ECB_MEMORY_FENCE
648 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 657 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
649 #if __i386 || __i386__ 658 #if __i386 || __i386__
… …
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
655 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
656 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
657 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
671 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
672 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
673 || defined __ARM_ARCH_5TEJ__
674 /* 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__ \ 675 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
660 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 676 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
677 || defined __ARM_ARCH_6T2__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 678 #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__ \ 679 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
663 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 680 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 681 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
665 #elif __aarch64__ 682 #elif __aarch64__
666 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
667 #elif (__sparc || __sparc__) && !__sparcv8 684 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 686 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 687 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
671 #elif defined __s390__ || defined __s390x__ 688 #elif defined __s390__ || defined __s390x__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 689 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
844 #define ecb_deprecated __declspec (deprecated) 861 #define ecb_deprecated __declspec (deprecated)
845#else 862#else
846 #define ecb_deprecated ecb_attribute ((__deprecated__)) 863 #define ecb_deprecated ecb_attribute ((__deprecated__))
847#endif 864#endif
848 865
849#if __MSC_VER >= 1500 866#if _MSC_VER >= 1500
850 #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) 867 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
851#elif ECB_GCC_VERSION(4,5) 868#elif ECB_GCC_VERSION(4,5)
852 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) 869 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
853#else 870#else
854 #define ecb_deprecated_message(msg) ecb_deprecated 871 #define ecb_deprecated_message(msg) ecb_deprecated
… …
863#define ecb_unused ecb_attribute ((__unused__)) 880#define ecb_unused ecb_attribute ((__unused__))
864#define ecb_const ecb_attribute ((__const__)) 881#define ecb_const ecb_attribute ((__const__))
865#define ecb_pure ecb_attribute ((__pure__)) 882#define ecb_pure ecb_attribute ((__pure__))
866 883
867#if ECB_C11 || __IBMC_NORETURN 884#if ECB_C11 || __IBMC_NORETURN
868 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */ 885 /* 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 886 #define ecb_noreturn _Noreturn
870#elif ECB_CPP11 887#elif ECB_CPP11
871 #define ecb_noreturn [[noreturn]] 888 #define ecb_noreturn [[noreturn]]
872#elif _MSC_VER >= 1200 889#elif _MSC_VER >= 1200
873 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ 890 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
… …
910#else 927#else
911 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 928 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
912 ecb_function_ ecb_const int 929 ecb_function_ ecb_const int
913 ecb_ctz32 (uint32_t x) 930 ecb_ctz32 (uint32_t x)
914 { 931 {
932#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
933 unsigned long r;
934 _BitScanForward (&r, x);
935 return (int)r;
936#else
915 int r = 0; 937 int r = 0;
916 938
917 x &= ~x + 1; /* this isolates the lowest bit */ 939 x &= ~x + 1; /* this isolates the lowest bit */
918 940
919#if ECB_branchless_on_i386 941#if ECB_branchless_on_i386
… …
929 if (x & 0xff00ff00) r += 8; 951 if (x & 0xff00ff00) r += 8;
930 if (x & 0xffff0000) r += 16; 952 if (x & 0xffff0000) r += 16;
931#endif 953#endif
932 954
933 return r; 955 return r;
956#endif
934 } 957 }
935 958
936 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 959 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
937 ecb_function_ ecb_const int 960 ecb_function_ ecb_const int
938 ecb_ctz64 (uint64_t x) 961 ecb_ctz64 (uint64_t x)
939 { 962 {
963#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
964 unsigned long r;
965 _BitScanForward64 (&r, x);
966 return (int)r;
967#else
940 int shift = x & 0xffffffffU ? 0 : 32; 968 int shift = x & 0xffffffff ? 0 : 32;
941 return ecb_ctz32 (x >> shift) + shift; 969 return ecb_ctz32 (x >> shift) + shift;
970#endif
942 } 971 }
943 972
944 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 973 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
945 ecb_function_ ecb_const int 974 ecb_function_ ecb_const int
946 ecb_popcount32 (uint32_t x) 975 ecb_popcount32 (uint32_t x)
… …
954 } 983 }
955 984
956 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 985 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
957 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 986 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
958 { 987 {
988#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
989 unsigned long r;
990 _BitScanReverse (&r, x);
991 return (int)r;
992#else
959 int r = 0; 993 int r = 0;
960 994
961 if (x >> 16) { x >>= 16; r += 16; } 995 if (x >> 16) { x >>= 16; r += 16; }
962 if (x >> 8) { x >>= 8; r += 8; } 996 if (x >> 8) { x >>= 8; r += 8; }
963 if (x >> 4) { x >>= 4; r += 4; } 997 if (x >> 4) { x >>= 4; r += 4; }
964 if (x >> 2) { x >>= 2; r += 2; } 998 if (x >> 2) { x >>= 2; r += 2; }
965 if (x >> 1) { r += 1; } 999 if (x >> 1) { r += 1; }
966 1000
967 return r; 1001 return r;
1002#endif
968 } 1003 }
969 1004
970 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1005 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
971 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1006 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
972 { 1007 {
1008#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1009 unsigned long r;
1010 _BitScanReverse64 (&r, x);
1011 return (int)r;
1012#else
973 int r = 0; 1013 int r = 0;
974 1014
975 if (x >> 32) { x >>= 32; r += 32; } 1015 if (x >> 32) { x >>= 32; r += 32; }
976 1016
977 return r + ecb_ld32 (x); 1017 return r + ecb_ld32 (x);
1018#endif
978 } 1019 }
979#endif 1020#endif
980 1021
981ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1022ecb_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)); } 1023ecb_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); } 1080ecb_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); } 1081ecb_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); } 1082ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1042 1083
1043#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1084#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1085 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1086 #define ecb_bswap16(x) __builtin_bswap16 (x)
1087 #else
1044 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1088 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1089 #endif
1045 #define ecb_bswap32(x) __builtin_bswap32 (x) 1090 #define ecb_bswap32(x) __builtin_bswap32 (x)
1046 #define ecb_bswap64(x) __builtin_bswap64 (x) 1091 #define ecb_bswap64(x) __builtin_bswap64 (x)
1092#elif _MSC_VER
1093 #include <stdlib.h>
1094 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1095 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1096 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1047#else 1097#else
1048 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); 1098 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1049 ecb_function_ ecb_const uint16_t 1099 ecb_function_ ecb_const uint16_t
1050 ecb_bswap16 (uint16_t x) 1100 ecb_bswap16 (uint16_t x)
1051 { 1101 {
… …
1076#endif 1126#endif
1077 1127
1078/* try to tell the compiler that some condition is definitely true */ 1128/* try to tell the compiler that some condition is definitely true */
1079#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1129#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1080 1130
1081ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1131ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1082ecb_inline ecb_const unsigned char 1132ecb_inline ecb_const uint32_t
1083ecb_byteorder_helper (void) 1133ecb_byteorder_helper (void)
1084{ 1134{
1085 /* the union code still generates code under pressure in gcc, */ 1135 /* the union code still generates code under pressure in gcc, */
1086 /* but less than using pointers, and always seems to */ 1136 /* but less than using pointers, and always seems to */
1087 /* successfully return a constant. */ 1137 /* successfully return a constant. */
1088 /* the reason why we have this horrible preprocessor mess */ 1138 /* the reason why we have this horrible preprocessor mess */
1089 /* is to avoid it in all cases, at least on common architectures */ 1139 /* is to avoid it in all cases, at least on common architectures */
1090 /* or when using a recent enough gcc version (>= 4.6) */ 1140 /* 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__ 1141#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1142 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1143 #define ECB_LITTLE_ENDIAN 1
1094 return 0x44; 1144 return 0x44332211;
1095#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1145#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1146 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1147 #define ECB_BIG_ENDIAN 1
1096 return 0x11; 1148 return 0x11223344;
1097#else 1149#else
1098 union 1150 union
1099 { 1151 {
1152 uint8_t c[4];
1100 uint32_t i; 1153 uint32_t u;
1101 uint8_t c;
1102 } u = { 0x11223344 }; 1154 } u = { 0x11, 0x22, 0x33, 0x44 };
1103 return u.c; 1155 return u.u;
1104#endif 1156#endif
1105} 1157}
1106 1158
1107ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1159ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1108ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1160ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1109ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1161ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1110ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1162ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1111 1163
1112#if ECB_GCC_VERSION(3,0) || ECB_C99 1164#if ECB_GCC_VERSION(3,0) || ECB_C99
1113 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1165 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1114#else 1166#else
1115 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1167 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1139 return N; 1191 return N;
1140 } 1192 }
1141#else 1193#else
1142 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1143#endif 1195#endif
1196
1197ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1198ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x)
1200{
1201 unsigned int s = (x & 0x8000) << (31 - 15);
1202 int e = (x >> 10) & 0x001f;
1203 unsigned int m = x & 0x03ff;
1204
1205 if (ecb_expect_false (e == 31))
1206 /* infinity or NaN */
1207 e = 255 - (127 - 15);
1208 else if (ecb_expect_false (!e))
1209 {
1210 if (ecb_expect_true (!m))
1211 /* zero, handled by code below by forcing e to 0 */
1212 e = 0 - (127 - 15);
1213 else
1214 {
1215 /* subnormal, renormalise */
1216 unsigned int s = 10 - ecb_ld32 (m);
1217
1218 m = (m << s) & 0x3ff; /* mask implicit bit */
1219 e -= s - 1;
1220 }
1221 }
1222
1223 /* e and m now are normalised, or zero, (or inf or nan) */
1224 e += 127 - 15;
1225
1226 return s | (e << 23) | (m << (23 - 10));
1227}
1228
1229ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1230ecb_function_ ecb_const uint16_t
1231ecb_binary32_to_binary16 (uint32_t x)
1232{
1233 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1234 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1235 unsigned int m = x & 0x007fffff;
1236
1237 x &= 0x7fffffff;
1238
1239 /* if it's within range of binary16 normals, use fast path */
1240 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1241 {
1242 /* mantissa round-to-even */
1243 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1244
1245 /* handle overflow */
1246 if (ecb_expect_false (m >= 0x00800000))
1247 {
1248 m >>= 1;
1249 e += 1;
1250 }
1251
1252 return s | (e << 10) | (m >> (23 - 10));
1253 }
1254
1255 /* handle large numbers and infinity */
1256 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1257 return s | 0x7c00;
1258
1259 /* handle zero, subnormals and small numbers */
1260 if (ecb_expect_true (x < 0x38800000))
1261 {
1262 /* zero */
1263 if (ecb_expect_true (!x))
1264 return s;
1265
1266 /* handle subnormals */
1267
1268 /* too small, will be zero */
1269 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1270 return s;
1271
1272 m |= 0x00800000; /* make implicit bit explicit */
1273
1274 /* very tricky - we need to round to the nearest e (+10) bit value */
1275 {
1276 unsigned int bits = 14 - e;
1277 unsigned int half = (1 << (bits - 1)) - 1;
1278 unsigned int even = (m >> bits) & 1;
1279
1280 /* if this overflows, we will end up with a normalised number */
1281 m = (m + half + even) >> bits;
1282 }
1283
1284 return s | m;
1285 }
1286
1287 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1288 m >>= 13;
1289
1290 return s | 0x7c00 | m | !m;
1291}
1144 1292
1145/*******************************************************************************/ 1293/*******************************************************************************/
1146/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1294/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1147 1295
1148/* basically, everything uses "ieee pure-endian" floating point numbers */ 1296/* basically, everything uses "ieee pure-endian" floating point numbers */
… …
1185 #define ECB_NAN ECB_INFINITY 1333 #define ECB_NAN ECB_INFINITY
1186 #endif 1334 #endif
1187 1335
1188 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L 1336 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1189 #define ecb_ldexpf(x,e) ldexpf ((x), (e)) 1337 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1338 #define ecb_frexpf(x,e) frexpf ((x), (e))
1190 #else 1339 #else
1191 #define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e)) 1340 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1341 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1192 #endif 1342 #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 1343
1211 /* convert a float to ieee single/binary32 */ 1344 /* convert a float to ieee single/binary32 */
1212 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1345 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1213 ecb_function_ ecb_const uint32_t 1346 ecb_function_ ecb_const uint32_t
1214 ecb_float_to_binary32 (float x) 1347 ecb_float_to_binary32 (float x)
… …
1225 if (x == 0e0f ) return 0x00000000U; 1358 if (x == 0e0f ) return 0x00000000U;
1226 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1359 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1227 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1360 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1228 if (x != x ) return 0x7fbfffffU; 1361 if (x != x ) return 0x7fbfffffU;
1229 1362
1230 m = frexpf (x, &e) * 0x1000000U; 1363 m = ecb_frexpf (x, &e) * 0x1000000U;
1231 1364
1232 r = m & 0x80000000U; 1365 r = m & 0x80000000U;
1233 1366
1234 if (r) 1367 if (r)
1235 m = -m; 1368 m = -m;
… …
1344 1477
1345 r = neg ? -r : r; 1478 r = neg ? -r : r;
1346 #endif 1479 #endif
1347 1480
1348 return r; 1481 return r;
1482 }
1483
1484 /* convert a float to ieee half/binary16 */
1485 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1486 ecb_function_ ecb_const uint16_t
1487 ecb_float_to_binary16 (float x)
1488 {
1489 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1490 }
1491
1492 /* convert an ieee half/binary16 to float */
1493 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1494 ecb_function_ ecb_const float
1495 ecb_binary16_to_float (uint16_t x)
1496 {
1497 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1349 } 1498 }
1350 1499
1351#endif 1500#endif
1352 1501
1353#endif 1502#endif
… …
1378#define inline_size ecb_inline 1527#define inline_size ecb_inline
1379 1528
1380#if EV_FEATURE_CODE 1529#if EV_FEATURE_CODE
1381# define inline_speed ecb_inline 1530# define inline_speed ecb_inline
1382#else 1531#else
1383# define inline_speed static noinline 1532# define inline_speed noinline static
1384#endif 1533#endif
1385 1534
1386#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1387 1536
1388#if EV_MINPRI == EV_MAXPRI 1537#if EV_MINPRI == EV_MAXPRI
… …
1435#else 1584#else
1436 1585
1437#include <float.h> 1586#include <float.h>
1438 1587
1439/* a floor() replacement function, should be independent of ev_tstamp type */ 1588/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline
1440static ev_tstamp noinline 1590static ev_tstamp
1441ev_floor (ev_tstamp v) 1591ev_floor (ev_tstamp v)
1442{ 1592{
1443 /* the choice of shift factor is not terribly important */ 1593 /* the choice of shift factor is not terribly important */
1444#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1445 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1477 1627
1478#ifdef __linux 1628#ifdef __linux
1479# include <sys/utsname.h> 1629# include <sys/utsname.h>
1480#endif 1630#endif
1481 1631
1482static unsigned int noinline ecb_cold 1632noinline ecb_cold
1633static unsigned int
1483ev_linux_version (void) 1634ev_linux_version (void)
1484{ 1635{
1485#ifdef __linux 1636#ifdef __linux
1486 unsigned int v = 0; 1637 unsigned int v = 0;
1487 struct utsname buf; 1638 struct utsname buf;
… …
1516} 1667}
1517 1668
1518/*****************************************************************************/ 1669/*****************************************************************************/
1519 1670
1520#if EV_AVOID_STDIO 1671#if EV_AVOID_STDIO
1521static void noinline ecb_cold 1672noinline ecb_cold
1673static void
1522ev_printerr (const char *msg) 1674ev_printerr (const char *msg)
1523{ 1675{
1524 write (STDERR_FILENO, msg, strlen (msg)); 1676 write (STDERR_FILENO, msg, strlen (msg));
1525} 1677}
1526#endif 1678#endif
1527 1679
1528static void (*syserr_cb)(const char *msg) EV_THROW; 1680static void (*syserr_cb)(const char *msg) EV_THROW;
1529 1681
1530void ecb_cold 1682ecb_cold
1683void
1531ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1532{ 1685{
1533 syserr_cb = cb; 1686 syserr_cb = cb;
1534} 1687}
1535 1688
1536static void noinline ecb_cold 1689noinline ecb_cold
1690static void
1537ev_syserr (const char *msg) 1691ev_syserr (const char *msg)
1538{ 1692{
1539 if (!msg) 1693 if (!msg)
1540 msg = "(libev) system error"; 1694 msg = "(libev) system error";
1541 1695
… …
1572 return 0; 1726 return 0;
1573} 1727}
1574 1728
1575static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1576 1730
1577void ecb_cold 1731ecb_cold
1732void
1578ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1579{ 1734{
1580 alloc = cb; 1735 alloc = cb;
1581} 1736}
1582 1737
… …
1791 } 1946 }
1792 1947
1793 return ncur; 1948 return ncur;
1794} 1949}
1795 1950
1796static void * noinline ecb_cold 1951noinline ecb_cold
1952static void *
1797array_realloc (int elem, void *base, int *cur, int cnt) 1953array_realloc (int elem, void *base, int *cur, int cnt)
1798{ 1954{
1799 *cur = array_nextsize (elem, *cur, cnt); 1955 *cur = array_nextsize (elem, *cur, cnt);
1800 return ev_realloc (base, elem * *cur); 1956 return ev_realloc (base, elem * *cur);
1801} 1957}
… …
1804 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1960 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1805 1961
1806#define array_needsize(type,base,cur,cnt,init) \ 1962#define array_needsize(type,base,cur,cnt,init) \
1807 if (expect_false ((cnt) > (cur))) \ 1963 if (expect_false ((cnt) > (cur))) \
1808 { \ 1964 { \
1809 int ecb_unused ocur_ = (cur); \ 1965 ecb_unused int ocur_ = (cur); \
1810 (base) = (type *)array_realloc \ 1966 (base) = (type *)array_realloc \
1811 (sizeof (type), (base), &(cur), (cnt)); \ 1967 (sizeof (type), (base), &(cur), (cnt)); \
1812 init ((base) + (ocur_), (cur) - ocur_); \ 1968 init ((base) + (ocur_), (cur) - ocur_); \
1813 } 1969 }
1814 1970
… …
1826 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1982 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1827 1983
1828/*****************************************************************************/ 1984/*****************************************************************************/
1829 1985
1830/* dummy callback for pending events */ 1986/* dummy callback for pending events */
1831static void noinline 1987noinline
1988static void
1832pendingcb (EV_P_ ev_prepare *w, int revents) 1989pendingcb (EV_P_ ev_prepare *w, int revents)
1833{ 1990{
1834} 1991}
1835 1992
1836void noinline 1993noinline
1994void
1837ev_feed_event (EV_P_ void *w, int revents) EV_THROW 1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1838{ 1996{
1839 W w_ = (W)w; 1997 W w_ = (W)w;
1840 int pri = ABSPRI (w_); 1998 int pri = ABSPRI (w_);
1841 1999
… …
1971 2129
1972 fdchangecnt = 0; 2130 fdchangecnt = 0;
1973} 2131}
1974 2132
1975/* something about the given fd changed */ 2133/* something about the given fd changed */
1976inline_size void 2134inline_size
2135void
1977fd_change (EV_P_ int fd, int flags) 2136fd_change (EV_P_ int fd, int flags)
1978{ 2137{
1979 unsigned char reify = anfds [fd].reify; 2138 unsigned char reify = anfds [fd].reify;
1980 anfds [fd].reify |= flags; 2139 anfds [fd].reify |= flags;
1981 2140
… …
1986 fdchanges [fdchangecnt - 1] = fd; 2145 fdchanges [fdchangecnt - 1] = fd;
1987 } 2146 }
1988} 2147}
1989 2148
1990/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2149/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1991inline_speed void ecb_cold 2150inline_speed ecb_cold void
1992fd_kill (EV_P_ int fd) 2151fd_kill (EV_P_ int fd)
1993{ 2152{
1994 ev_io *w; 2153 ev_io *w;
1995 2154
1996 while ((w = (ev_io *)anfds [fd].head)) 2155 while ((w = (ev_io *)anfds [fd].head))
… …
1999 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2158 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2000 } 2159 }
2001} 2160}
2002 2161
2003/* check whether the given fd is actually valid, for error recovery */ 2162/* check whether the given fd is actually valid, for error recovery */
2004inline_size int ecb_cold 2163inline_size ecb_cold int
2005fd_valid (int fd) 2164fd_valid (int fd)
2006{ 2165{
2007#ifdef _WIN32 2166#ifdef _WIN32
2008 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2167 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2009#else 2168#else
2010 return fcntl (fd, F_GETFD) != -1; 2169 return fcntl (fd, F_GETFD) != -1;
2011#endif 2170#endif
2012} 2171}
2013 2172
2014/* called on EBADF to verify fds */ 2173/* called on EBADF to verify fds */
2015static void noinline ecb_cold 2174noinline ecb_cold
2175static void
2016fd_ebadf (EV_P) 2176fd_ebadf (EV_P)
2017{ 2177{
2018 int fd; 2178 int fd;
2019 2179
2020 for (fd = 0; fd < anfdmax; ++fd) 2180 for (fd = 0; fd < anfdmax; ++fd)
… …
2022 if (!fd_valid (fd) && errno == EBADF) 2182 if (!fd_valid (fd) && errno == EBADF)
2023 fd_kill (EV_A_ fd); 2183 fd_kill (EV_A_ fd);
2024} 2184}
2025 2185
2026/* called on ENOMEM in select/poll to kill some fds and retry */ 2186/* called on ENOMEM in select/poll to kill some fds and retry */
2027static void noinline ecb_cold 2187noinline ecb_cold
2188static void
2028fd_enomem (EV_P) 2189fd_enomem (EV_P)
2029{ 2190{
2030 int fd; 2191 int fd;
2031 2192
2032 for (fd = anfdmax; fd--; ) 2193 for (fd = anfdmax; fd--; )
… …
2036 break; 2197 break;
2037 } 2198 }
2038} 2199}
2039 2200
2040/* usually called after fork if backend needs to re-arm all fds from scratch */ 2201/* usually called after fork if backend needs to re-arm all fds from scratch */
2041static void noinline 2202noinline
2203static void
2042fd_rearm_all (EV_P) 2204fd_rearm_all (EV_P)
2043{ 2205{
2044 int fd; 2206 int fd;
2045 2207
2046 for (fd = 0; fd < anfdmax; ++fd) 2208 for (fd = 0; fd < anfdmax; ++fd)
… …
2227 2389
2228/*****************************************************************************/ 2390/*****************************************************************************/
2229 2391
2230#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2231 2393
2232static void noinline ecb_cold 2394noinline ecb_cold
2395static void
2233evpipe_init (EV_P) 2396evpipe_init (EV_P)
2234{ 2397{
2235 if (!ev_is_active (&pipe_w)) 2398 if (!ev_is_active (&pipe_w))
2236 { 2399 {
2237 int fds [2]; 2400 int fds [2];
… …
2415#endif 2578#endif
2416 2579
2417 ev_feed_signal (signum); 2580 ev_feed_signal (signum);
2418} 2581}
2419 2582
2420void noinline 2583noinline
2584void
2421ev_feed_signal_event (EV_P_ int signum) EV_THROW 2585ev_feed_signal_event (EV_P_ int signum) EV_THROW
2422{ 2586{
2423 WL w; 2587 WL w;
2424 2588
2425 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2589 if (expect_false (signum <= 0 || signum >= EV_NSIG))
… …
2542#endif 2706#endif
2543#if EV_USE_SELECT 2707#if EV_USE_SELECT
2544# include "ev_select.c" 2708# include "ev_select.c"
2545#endif 2709#endif
2546 2710
2547int ecb_cold 2711ecb_cold int
2548ev_version_major (void) EV_THROW 2712ev_version_major (void) EV_THROW
2549{ 2713{
2550 return EV_VERSION_MAJOR; 2714 return EV_VERSION_MAJOR;
2551} 2715}
2552 2716
2553int ecb_cold 2717ecb_cold int
2554ev_version_minor (void) EV_THROW 2718ev_version_minor (void) EV_THROW
2555{ 2719{
2556 return EV_VERSION_MINOR; 2720 return EV_VERSION_MINOR;
2557} 2721}
2558 2722
2559/* return true if we are running with elevated privileges and should ignore env variables */ 2723/* return true if we are running with elevated privileges and should ignore env variables */
2560int inline_size ecb_cold 2724inline_size ecb_cold int
2561enable_secure (void) 2725enable_secure (void)
2562{ 2726{
2563#ifdef _WIN32 2727#ifdef _WIN32
2564 return 0; 2728 return 0;
2565#else 2729#else
2566 return getuid () != geteuid () 2730 return getuid () != geteuid ()
2567 || getgid () != getegid (); 2731 || getgid () != getegid ();
2568#endif 2732#endif
2569} 2733}
2570 2734
2571unsigned int ecb_cold 2735ecb_cold
2736unsigned int
2572ev_supported_backends (void) EV_THROW 2737ev_supported_backends (void) EV_THROW
2573{ 2738{
2574 unsigned int flags = 0; 2739 unsigned int flags = 0;
2575 2740
2576 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
2580 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2581 2746
2582 return flags; 2747 return flags;
2583} 2748}
2584 2749
2585unsigned int ecb_cold 2750ecb_cold
2751unsigned int
2586ev_recommended_backends (void) EV_THROW 2752ev_recommended_backends (void) EV_THROW
2587{ 2753{
2588 unsigned int flags = ev_supported_backends (); 2754 unsigned int flags = ev_supported_backends ();
2589 2755
2590#ifndef __NetBSD__ 2756#ifndef __NetBSD__
… …
2602#endif 2768#endif
2603 2769
2604 return flags; 2770 return flags;
2605} 2771}
2606 2772
2607unsigned int ecb_cold 2773ecb_cold
2774unsigned int
2608ev_embeddable_backends (void) EV_THROW 2775ev_embeddable_backends (void) EV_THROW
2609{ 2776{
2610 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2611 2778
2612 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2779 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
… …
2672 acquire_cb = acquire; 2839 acquire_cb = acquire;
2673} 2840}
2674#endif 2841#endif
2675 2842
2676/* initialise a loop structure, must be zero-initialised */ 2843/* initialise a loop structure, must be zero-initialised */
2677static void noinline ecb_cold 2844noinline ecb_cold
2845static void
2678loop_init (EV_P_ unsigned int flags) EV_THROW 2846loop_init (EV_P_ unsigned int flags) EV_THROW
2679{ 2847{
2680 if (!backend) 2848 if (!backend)
2681 { 2849 {
2682 origflags = flags; 2850 origflags = flags;
… …
2769#endif 2937#endif
2770 } 2938 }
2771} 2939}
2772 2940
2773/* free up a loop structure */ 2941/* free up a loop structure */
2774void ecb_cold 2942ecb_cold
2943void
2775ev_loop_destroy (EV_P) 2944ev_loop_destroy (EV_P)
2776{ 2945{
2777 int i; 2946 int i;
2778 2947
2779#if EV_MULTIPLICITY 2948#if EV_MULTIPLICITY
… …
2900#if EV_USE_INOTIFY 3069#if EV_USE_INOTIFY
2901 infy_fork (EV_A); 3070 infy_fork (EV_A);
2902#endif 3071#endif
2903 3072
2904#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3073#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2905 if (ev_is_active (&pipe_w)) 3074 if (ev_is_active (&pipe_w) && postfork != 2)
2906 { 3075 {
2907 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3076 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2908 3077
2909 ev_ref (EV_A); 3078 ev_ref (EV_A);
2910 ev_io_stop (EV_A_ &pipe_w); 3079 ev_io_stop (EV_A_ &pipe_w);
… …
2921 postfork = 0; 3090 postfork = 0;
2922} 3091}
2923 3092
2924#if EV_MULTIPLICITY 3093#if EV_MULTIPLICITY
2925 3094
3095ecb_cold
2926struct ev_loop * ecb_cold 3096struct ev_loop *
2927ev_loop_new (unsigned int flags) EV_THROW 3097ev_loop_new (unsigned int flags) EV_THROW
2928{ 3098{
2929 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2930 3100
2931 memset (EV_A, 0, sizeof (struct ev_loop)); 3101 memset (EV_A, 0, sizeof (struct ev_loop));
… …
2939} 3109}
2940 3110
2941#endif /* multiplicity */ 3111#endif /* multiplicity */
2942 3112
2943#if EV_VERIFY 3113#if EV_VERIFY
2944static void noinline ecb_cold 3114noinline ecb_cold
3115static void
2945verify_watcher (EV_P_ W w) 3116verify_watcher (EV_P_ W w)
2946{ 3117{
2947 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3118 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2948 3119
2949 if (w->pending) 3120 if (w->pending)
2950 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3121 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2951} 3122}
2952 3123
2953static void noinline ecb_cold 3124noinline ecb_cold
3125static void
2954verify_heap (EV_P_ ANHE *heap, int N) 3126verify_heap (EV_P_ ANHE *heap, int N)
2955{ 3127{
2956 int i; 3128 int i;
2957 3129
2958 for (i = HEAP0; i < N + HEAP0; ++i) 3130 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2963 3135
2964 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2965 } 3137 }
2966} 3138}
2967 3139
2968static void noinline ecb_cold 3140noinline ecb_cold
3141static void
2969array_verify (EV_P_ W *ws, int cnt) 3142array_verify (EV_P_ W *ws, int cnt)
2970{ 3143{
2971 while (cnt--) 3144 while (cnt--)
2972 { 3145 {
2973 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3146 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
3062#endif 3235#endif
3063} 3236}
3064#endif 3237#endif
3065 3238
3066#if EV_MULTIPLICITY 3239#if EV_MULTIPLICITY
3240ecb_cold
3067struct ev_loop * ecb_cold 3241struct ev_loop *
3068#else 3242#else
3069int 3243int
3070#endif 3244#endif
3071ev_default_loop (unsigned int flags) EV_THROW 3245ev_default_loop (unsigned int flags) EV_THROW
3072{ 3246{
… …
3120 count += pendingcnt [pri]; 3294 count += pendingcnt [pri];
3121 3295
3122 return count; 3296 return count;
3123} 3297}
3124 3298
3125void noinline 3299noinline
3300void
3126ev_invoke_pending (EV_P) 3301ev_invoke_pending (EV_P)
3127{ 3302{
3128 pendingpri = NUMPRI; 3303 pendingpri = NUMPRI;
3129 3304
3130 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
… …
3205 } 3380 }
3206} 3381}
3207 3382
3208#if EV_PERIODIC_ENABLE 3383#if EV_PERIODIC_ENABLE
3209 3384
3210static void noinline 3385noinline
3386static void
3211periodic_recalc (EV_P_ ev_periodic *w) 3387periodic_recalc (EV_P_ ev_periodic *w)
3212{ 3388{
3213 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3389 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); 3390 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3215 3391
… …
3273 } 3449 }
3274} 3450}
3275 3451
3276/* simply recalculate all periodics */ 3452/* simply recalculate all periodics */
3277/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3453/* TODO: maybe ensure that at least one event happens when jumping forward? */
3278static void noinline ecb_cold 3454noinline ecb_cold
3455static void
3279periodics_reschedule (EV_P) 3456periodics_reschedule (EV_P)
3280{ 3457{
3281 int i; 3458 int i;
3282 3459
3283 /* adjust periodics after time jump */ 3460 /* adjust periodics after time jump */
… …
3296 reheap (periodics, periodiccnt); 3473 reheap (periodics, periodiccnt);
3297} 3474}
3298#endif 3475#endif
3299 3476
3300/* adjust all timers by a given offset */ 3477/* adjust all timers by a given offset */
3301static void noinline ecb_cold 3478noinline ecb_cold
3479static void
3302timers_reschedule (EV_P_ ev_tstamp adjust) 3480timers_reschedule (EV_P_ ev_tstamp adjust)
3303{ 3481{
3304 int i; 3482 int i;
3305 3483
3306 for (i = 0; i < timercnt; ++i) 3484 for (i = 0; i < timercnt; ++i)
… …
3674 w->active = 0; 3852 w->active = 0;
3675} 3853}
3676 3854
3677/*****************************************************************************/ 3855/*****************************************************************************/
3678 3856
3679void noinline 3857noinline
3858void
3680ev_io_start (EV_P_ ev_io *w) EV_THROW 3859ev_io_start (EV_P_ ev_io *w) EV_THROW
3681{ 3860{
3682 int fd = w->fd; 3861 int fd = w->fd;
3683 3862
3684 if (expect_false (ev_is_active (w))) 3863 if (expect_false (ev_is_active (w)))
… …
3700 w->events &= ~EV__IOFDSET; 3879 w->events &= ~EV__IOFDSET;
3701 3880
3702 EV_FREQUENT_CHECK; 3881 EV_FREQUENT_CHECK;
3703} 3882}
3704 3883
3705void noinline 3884noinline
3885void
3706ev_io_stop (EV_P_ ev_io *w) EV_THROW 3886ev_io_stop (EV_P_ ev_io *w) EV_THROW
3707{ 3887{
3708 clear_pending (EV_A_ (W)w); 3888 clear_pending (EV_A_ (W)w);
3709 if (expect_false (!ev_is_active (w))) 3889 if (expect_false (!ev_is_active (w)))
3710 return; 3890 return;
… …
3719 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3720 3900
3721 EV_FREQUENT_CHECK; 3901 EV_FREQUENT_CHECK;
3722} 3902}
3723 3903
3724void noinline 3904noinline
3905void
3725ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3726{ 3907{
3727 if (expect_false (ev_is_active (w))) 3908 if (expect_false (ev_is_active (w)))
3728 return; 3909 return;
3729 3910
… …
3743 EV_FREQUENT_CHECK; 3924 EV_FREQUENT_CHECK;
3744 3925
3745 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3926 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3746} 3927}
3747 3928
3748void noinline 3929noinline
3930void
3749ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3750{ 3932{
3751 clear_pending (EV_A_ (W)w); 3933 clear_pending (EV_A_ (W)w);
3752 if (expect_false (!ev_is_active (w))) 3934 if (expect_false (!ev_is_active (w)))
3753 return; 3935 return;
… …
3773 ev_stop (EV_A_ (W)w); 3955 ev_stop (EV_A_ (W)w);
3774 3956
3775 EV_FREQUENT_CHECK; 3957 EV_FREQUENT_CHECK;
3776} 3958}
3777 3959
3778void noinline 3960noinline
3961void
3779ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3780{ 3963{
3781 EV_FREQUENT_CHECK; 3964 EV_FREQUENT_CHECK;
3782 3965
3783 clear_pending (EV_A_ (W)w); 3966 clear_pending (EV_A_ (W)w);
… …
3807{ 3990{
3808 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3991 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3809} 3992}
3810 3993
3811#if EV_PERIODIC_ENABLE 3994#if EV_PERIODIC_ENABLE
3812void noinline 3995noinline
3996void
3813ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3814{ 3998{
3815 if (expect_false (ev_is_active (w))) 3999 if (expect_false (ev_is_active (w)))
3816 return; 4000 return;
3817 4001
… …
3837 EV_FREQUENT_CHECK; 4021 EV_FREQUENT_CHECK;
3838 4022
3839 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4023 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3840} 4024}
3841 4025
3842void noinline 4026noinline
4027void
3843ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3844{ 4029{
3845 clear_pending (EV_A_ (W)w); 4030 clear_pending (EV_A_ (W)w);
3846 if (expect_false (!ev_is_active (w))) 4031 if (expect_false (!ev_is_active (w)))
3847 return; 4032 return;
… …
3865 ev_stop (EV_A_ (W)w); 4050 ev_stop (EV_A_ (W)w);
3866 4051
3867 EV_FREQUENT_CHECK; 4052 EV_FREQUENT_CHECK;
3868} 4053}
3869 4054
3870void noinline 4055noinline
4056void
3871ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3872{ 4058{
3873 /* TODO: use adjustheap and recalculation */ 4059 /* TODO: use adjustheap and recalculation */
3874 ev_periodic_stop (EV_A_ w); 4060 ev_periodic_stop (EV_A_ w);
3875 ev_periodic_start (EV_A_ w); 4061 ev_periodic_start (EV_A_ w);
… …
3880# define SA_RESTART 0 4066# define SA_RESTART 0
3881#endif 4067#endif
3882 4068
3883#if EV_SIGNAL_ENABLE 4069#if EV_SIGNAL_ENABLE
3884 4070
3885void noinline 4071noinline
4072void
3886ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3887{ 4074{
3888 if (expect_false (ev_is_active (w))) 4075 if (expect_false (ev_is_active (w)))
3889 return; 4076 return;
3890 4077
… …
3962 } 4149 }
3963 4150
3964 EV_FREQUENT_CHECK; 4151 EV_FREQUENT_CHECK;
3965} 4152}
3966 4153
3967void noinline 4154noinline
4155void
3968ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3969{ 4157{
3970 clear_pending (EV_A_ (W)w); 4158 clear_pending (EV_A_ (W)w);
3971 if (expect_false (!ev_is_active (w))) 4159 if (expect_false (!ev_is_active (w)))
3972 return; 4160 return;
… …
4048 4236
4049#define DEF_STAT_INTERVAL 5.0074891 4237#define DEF_STAT_INTERVAL 5.0074891
4050#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4051#define MIN_STAT_INTERVAL 0.1074891 4239#define MIN_STAT_INTERVAL 0.1074891
4052 4240
4053static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4241noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4054 4242
4055#if EV_USE_INOTIFY 4243#if EV_USE_INOTIFY
4056 4244
4057/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4245/* 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) 4246# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4059 4247
4060static void noinline 4248noinline
4249static void
4061infy_add (EV_P_ ev_stat *w) 4250infy_add (EV_P_ ev_stat *w)
4062{ 4251{
4063 w->wd = inotify_add_watch (fs_fd, w->path, 4252 w->wd = inotify_add_watch (fs_fd, w->path,
4064 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4065 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4254 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4129 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4318 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4130 ev_timer_again (EV_A_ &w->timer); 4319 ev_timer_again (EV_A_ &w->timer);
4131 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4320 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4132} 4321}
4133 4322
4134static void noinline 4323noinline
4324static void
4135infy_del (EV_P_ ev_stat *w) 4325infy_del (EV_P_ ev_stat *w)
4136{ 4326{
4137 int slot; 4327 int slot;
4138 int wd = w->wd; 4328 int wd = w->wd;
4139 4329
… …
4146 4336
4147 /* remove this watcher, if others are watching it, they will rearm */ 4337 /* remove this watcher, if others are watching it, they will rearm */
4148 inotify_rm_watch (fs_fd, wd); 4338 inotify_rm_watch (fs_fd, wd);
4149} 4339}
4150 4340
4151static void noinline 4341noinline
4342static void
4152infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4153{ 4344{
4154 if (slot < 0) 4345 if (slot < 0)
4155 /* overflow, need to check for all hash slots */ 4346 /* overflow, need to check for all hash slots */
4156 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4347 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4192 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4383 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4193 ofs += sizeof (struct inotify_event) + ev->len; 4384 ofs += sizeof (struct inotify_event) + ev->len;
4194 } 4385 }
4195} 4386}
4196 4387
4197inline_size void ecb_cold 4388inline_size ecb_cold
4389void
4198ev_check_2625 (EV_P) 4390ev_check_2625 (EV_P)
4199{ 4391{
4200 /* kernels < 2.6.25 are borked 4392 /* kernels < 2.6.25 are borked
4201 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4393 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4202 */ 4394 */
… …
4300 w->attr.st_nlink = 0; 4492 w->attr.st_nlink = 0;
4301 else if (!w->attr.st_nlink) 4493 else if (!w->attr.st_nlink)
4302 w->attr.st_nlink = 1; 4494 w->attr.st_nlink = 1;
4303} 4495}
4304 4496
4305static void noinline 4497noinline
4498static void
4306stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4499stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4307{ 4500{
4308 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4309 4502
4310 ev_statdata prev = w->attr; 4503 ev_statdata prev = w->attr;
… …
4520 EV_FREQUENT_CHECK; 4713 EV_FREQUENT_CHECK;
4521} 4714}
4522#endif 4715#endif
4523 4716
4524#if EV_EMBED_ENABLE 4717#if EV_EMBED_ENABLE
4525void noinline 4718noinline
4719void
4526ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4527{ 4721{
4528 ev_run (w->other, EVRUN_NOWAIT); 4722 ev_run (w->other, EVRUN_NOWAIT);
4529} 4723}
4530 4724
… …
4827} 5021}
4828 5022
4829/*****************************************************************************/ 5023/*****************************************************************************/
4830 5024
4831#if EV_WALK_ENABLE 5025#if EV_WALK_ENABLE
4832void ecb_cold 5026ecb_cold
5027void
4833ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5028ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4834{ 5029{
4835 int i, j; 5030 int i, j;
4836 ev_watcher_list *wl, *wn; 5031 ev_watcher_list *wl, *wn;
4837 5032

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