… | |
… | |
241 | #elif defined SIGARRAYSIZE |
241 | #elif defined SIGARRAYSIZE |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
243 | #elif defined _sys_nsig |
243 | #elif defined _sys_nsig |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
245 | #else |
245 | #else |
246 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
247 | /* to make it compile regardless, just remove the above line, */ |
|
|
248 | /* but consider reporting it, too! :) */ |
|
|
249 | # define EV_NSIG 65 |
|
|
250 | #endif |
247 | #endif |
251 | |
248 | |
252 | #ifndef EV_USE_FLOOR |
249 | #ifndef EV_USE_FLOOR |
253 | # define EV_USE_FLOOR 0 |
250 | # define EV_USE_FLOOR 0 |
254 | #endif |
251 | #endif |
255 | |
252 | |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
257 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
259 | # else |
256 | # else |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
261 | # endif |
258 | # endif |
262 | #endif |
259 | #endif |
… | |
… | |
355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
352 | # define EV_USE_4HEAP EV_FEATURE_DATA |
356 | #endif |
353 | #endif |
357 | |
354 | |
358 | #ifndef EV_HEAP_CACHE_AT |
355 | #ifndef EV_HEAP_CACHE_AT |
359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
356 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
357 | #endif |
|
|
358 | |
|
|
359 | #ifdef ANDROID |
|
|
360 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
361 | # undef EV_USE_SELECT |
|
|
362 | # define EV_USE_SELECT 0 |
|
|
363 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
364 | # undef EV_USE_CLOCK_SYSCALL |
|
|
365 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
366 | #endif |
|
|
367 | |
|
|
368 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
369 | #ifdef _AIX |
|
|
370 | /* AIX has a completely broken poll.h header */ |
|
|
371 | # undef EV_USE_POLL |
|
|
372 | # define EV_USE_POLL 0 |
360 | #endif |
373 | #endif |
361 | |
374 | |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
375 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
376 | /* which makes programs even slower. might work on other unices, too. */ |
364 | #if EV_USE_CLOCK_SYSCALL |
377 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
372 | # define EV_USE_CLOCK_SYSCALL 0 |
385 | # define EV_USE_CLOCK_SYSCALL 0 |
373 | # endif |
386 | # endif |
374 | #endif |
387 | #endif |
375 | |
388 | |
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
389 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
377 | |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
390 | |
384 | #ifndef CLOCK_MONOTONIC |
391 | #ifndef CLOCK_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
392 | # undef EV_USE_MONOTONIC |
386 | # define EV_USE_MONOTONIC 0 |
393 | # define EV_USE_MONOTONIC 0 |
387 | #endif |
394 | #endif |
… | |
… | |
505 | |
512 | |
506 | #ifndef ECB_H |
513 | #ifndef ECB_H |
507 | #define ECB_H |
514 | #define ECB_H |
508 | |
515 | |
509 | /* 16 bits major, 16 bits minor */ |
516 | /* 16 bits major, 16 bits minor */ |
510 | #define ECB_VERSION 0x00010001 |
517 | #define ECB_VERSION 0x00010003 |
511 | |
518 | |
512 | #ifdef _WIN32 |
519 | #ifdef _WIN32 |
513 | typedef signed char int8_t; |
520 | typedef signed char int8_t; |
514 | typedef unsigned char uint8_t; |
521 | typedef unsigned char uint8_t; |
515 | typedef signed short int16_t; |
522 | typedef signed short int16_t; |
… | |
… | |
530 | #else |
537 | #else |
531 | #define ECB_PTRSIZE 4 |
538 | #define ECB_PTRSIZE 4 |
532 | typedef uint32_t uintptr_t; |
539 | typedef uint32_t uintptr_t; |
533 | typedef int32_t intptr_t; |
540 | typedef int32_t intptr_t; |
534 | #endif |
541 | #endif |
535 | typedef intptr_t ptrdiff_t; |
|
|
536 | #else |
542 | #else |
537 | #include <inttypes.h> |
543 | #include <inttypes.h> |
538 | #if UINTMAX_MAX > 0xffffffffU |
544 | #if UINTMAX_MAX > 0xffffffffU |
539 | #define ECB_PTRSIZE 8 |
545 | #define ECB_PTRSIZE 8 |
540 | #else |
546 | #else |
541 | #define ECB_PTRSIZE 4 |
547 | #define ECB_PTRSIZE 4 |
|
|
548 | #endif |
|
|
549 | #endif |
|
|
550 | |
|
|
551 | /* work around x32 idiocy by defining proper macros */ |
|
|
552 | #if __x86_64 || _M_AMD64 |
|
|
553 | #if _ILP32 |
|
|
554 | #define ECB_AMD64_X32 1 |
|
|
555 | #else |
|
|
556 | #define ECB_AMD64 1 |
542 | #endif |
557 | #endif |
543 | #endif |
558 | #endif |
544 | |
559 | |
545 | /* many compilers define _GNUC_ to some versions but then only implement |
560 | /* many compilers define _GNUC_ to some versions but then only implement |
546 | * what their idiot authors think are the "more important" extensions, |
561 | * what their idiot authors think are the "more important" extensions, |
… | |
… | |
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
575 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
576 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
577 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
563 | #define ECB_CPP (__cplusplus+0) |
578 | #define ECB_CPP (__cplusplus+0) |
564 | #define ECB_CPP11 (__cplusplus >= 201103L) |
579 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
580 | |
|
|
581 | #if ECB_CPP |
|
|
582 | #define ECB_EXTERN_C extern "C" |
|
|
583 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
584 | #define ECB_EXTERN_C_END } |
|
|
585 | #else |
|
|
586 | #define ECB_EXTERN_C extern |
|
|
587 | #define ECB_EXTERN_C_BEG |
|
|
588 | #define ECB_EXTERN_C_END |
|
|
589 | #endif |
565 | |
590 | |
566 | /*****************************************************************************/ |
591 | /*****************************************************************************/ |
567 | |
592 | |
568 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
593 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
569 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
594 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
… | |
… | |
599 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
624 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
600 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
625 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
601 | #elif defined __s390__ || defined __s390x__ |
626 | #elif defined __s390__ || defined __s390x__ |
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
627 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
603 | #elif defined __mips__ |
628 | #elif defined __mips__ |
|
|
629 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
630 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
604 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
631 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
605 | #elif defined __alpha__ |
632 | #elif defined __alpha__ |
606 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
633 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
607 | #elif defined __hppa__ |
634 | #elif defined __hppa__ |
608 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
635 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
636 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
610 | #elif defined __ia64__ |
637 | #elif defined __ia64__ |
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
639 | #elif defined __m68k__ |
|
|
640 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
641 | #elif defined __m88k__ |
|
|
642 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
643 | #elif defined __sh__ |
|
|
644 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
612 | #endif |
645 | #endif |
613 | #endif |
646 | #endif |
614 | #endif |
647 | #endif |
615 | |
648 | |
616 | #ifndef ECB_MEMORY_FENCE |
649 | #ifndef ECB_MEMORY_FENCE |
617 | #if ECB_GCC_VERSION(4,7) |
650 | #if ECB_GCC_VERSION(4,7) |
618 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
651 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
619 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
652 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
653 | |
|
|
654 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
655 | * without risking compile time errors with other compilers. We *could* |
|
|
656 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
657 | * around this shit time and again. |
620 | #elif defined __clang && __has_feature (cxx_atomic) |
658 | * #elif defined __clang && __has_feature (cxx_atomic) |
621 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
659 | * // see comment below (stdatomic.h) about the C11 memory model. |
622 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
660 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
661 | */ |
|
|
662 | |
623 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
663 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
624 | #define ECB_MEMORY_FENCE __sync_synchronize () |
664 | #define ECB_MEMORY_FENCE __sync_synchronize () |
625 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
665 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
626 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
666 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
627 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
667 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
… | |
… | |
935 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
975 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
936 | ecb_inline void ecb_unreachable (void) { } |
976 | ecb_inline void ecb_unreachable (void) { } |
937 | #endif |
977 | #endif |
938 | |
978 | |
939 | /* try to tell the compiler that some condition is definitely true */ |
979 | /* try to tell the compiler that some condition is definitely true */ |
940 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
980 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
941 | |
981 | |
942 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
982 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
943 | ecb_inline unsigned char |
983 | ecb_inline unsigned char |
944 | ecb_byteorder_helper (void) |
984 | ecb_byteorder_helper (void) |
945 | { |
985 | { |
946 | const uint32_t u = 0x11223344; |
986 | /* the union code still generates code under pressure in gcc, */ |
947 | return *(unsigned char *)&u; |
987 | /* but less than using pointers, and always seems to */ |
|
|
988 | /* successfully return a constant. */ |
|
|
989 | /* the reason why we have this horrible preprocessor mess */ |
|
|
990 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
991 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
992 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
993 | return 0x44; |
|
|
994 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
995 | return 0x44; |
|
|
996 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
997 | return 0x11; |
|
|
998 | #else |
|
|
999 | union |
|
|
1000 | { |
|
|
1001 | uint32_t i; |
|
|
1002 | uint8_t c; |
|
|
1003 | } u = { 0x11223344 }; |
|
|
1004 | return u.c; |
|
|
1005 | #endif |
948 | } |
1006 | } |
949 | |
1007 | |
950 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
1008 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
951 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
1009 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
952 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
1010 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
… | |
… | |
981 | { |
1039 | { |
982 | return N; |
1040 | return N; |
983 | } |
1041 | } |
984 | #else |
1042 | #else |
985 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
1043 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1044 | #endif |
|
|
1045 | |
|
|
1046 | /*******************************************************************************/ |
|
|
1047 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1048 | |
|
|
1049 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1050 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1051 | #if 0 \ |
|
|
1052 | || __i386 || __i386__ \ |
|
|
1053 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1054 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1055 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1056 | || defined __s390__ || defined __s390x__ \ |
|
|
1057 | || defined __mips__ \ |
|
|
1058 | || defined __alpha__ \ |
|
|
1059 | || defined __hppa__ \ |
|
|
1060 | || defined __ia64__ \ |
|
|
1061 | || defined __m68k__ \ |
|
|
1062 | || defined __m88k__ \ |
|
|
1063 | || defined __sh__ \ |
|
|
1064 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1065 | #define ECB_STDFP 1 |
|
|
1066 | #include <string.h> /* for memcpy */ |
|
|
1067 | #else |
|
|
1068 | #define ECB_STDFP 0 |
|
|
1069 | #endif |
|
|
1070 | |
|
|
1071 | #ifndef ECB_NO_LIBM |
|
|
1072 | |
|
|
1073 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1074 | |
|
|
1075 | #ifdef NEN |
|
|
1076 | #define ECB_NAN NAN |
|
|
1077 | #else |
|
|
1078 | #define ECB_NAN INFINITY |
|
|
1079 | #endif |
|
|
1080 | |
|
|
1081 | /* converts an ieee half/binary16 to a float */ |
|
|
1082 | ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const; |
|
|
1083 | ecb_function_ float |
|
|
1084 | ecb_binary16_to_float (uint16_t x) |
|
|
1085 | { |
|
|
1086 | int e = (x >> 10) & 0x1f; |
|
|
1087 | int m = x & 0x3ff; |
|
|
1088 | float r; |
|
|
1089 | |
|
|
1090 | if (!e ) r = ldexpf (m , -24); |
|
|
1091 | else if (e != 31) r = ldexpf (m + 0x400, e - 25); |
|
|
1092 | else if (m ) r = ECB_NAN; |
|
|
1093 | else r = INFINITY; |
|
|
1094 | |
|
|
1095 | return x & 0x8000 ? -r : r; |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | /* convert a float to ieee single/binary32 */ |
|
|
1099 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1100 | ecb_function_ uint32_t |
|
|
1101 | ecb_float_to_binary32 (float x) |
|
|
1102 | { |
|
|
1103 | uint32_t r; |
|
|
1104 | |
|
|
1105 | #if ECB_STDFP |
|
|
1106 | memcpy (&r, &x, 4); |
|
|
1107 | #else |
|
|
1108 | /* slow emulation, works for anything but -0 */ |
|
|
1109 | uint32_t m; |
|
|
1110 | int e; |
|
|
1111 | |
|
|
1112 | if (x == 0e0f ) return 0x00000000U; |
|
|
1113 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1114 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1115 | if (x != x ) return 0x7fbfffffU; |
|
|
1116 | |
|
|
1117 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1118 | |
|
|
1119 | r = m & 0x80000000U; |
|
|
1120 | |
|
|
1121 | if (r) |
|
|
1122 | m = -m; |
|
|
1123 | |
|
|
1124 | if (e <= -126) |
|
|
1125 | { |
|
|
1126 | m &= 0xffffffU; |
|
|
1127 | m >>= (-125 - e); |
|
|
1128 | e = -126; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | r |= (e + 126) << 23; |
|
|
1132 | r |= m & 0x7fffffU; |
|
|
1133 | #endif |
|
|
1134 | |
|
|
1135 | return r; |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | /* converts an ieee single/binary32 to a float */ |
|
|
1139 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1140 | ecb_function_ float |
|
|
1141 | ecb_binary32_to_float (uint32_t x) |
|
|
1142 | { |
|
|
1143 | float r; |
|
|
1144 | |
|
|
1145 | #if ECB_STDFP |
|
|
1146 | memcpy (&r, &x, 4); |
|
|
1147 | #else |
|
|
1148 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1149 | int neg = x >> 31; |
|
|
1150 | int e = (x >> 23) & 0xffU; |
|
|
1151 | |
|
|
1152 | x &= 0x7fffffU; |
|
|
1153 | |
|
|
1154 | if (e) |
|
|
1155 | x |= 0x800000U; |
|
|
1156 | else |
|
|
1157 | e = 1; |
|
|
1158 | |
|
|
1159 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1160 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1161 | |
|
|
1162 | r = neg ? -r : r; |
|
|
1163 | #endif |
|
|
1164 | |
|
|
1165 | return r; |
|
|
1166 | } |
|
|
1167 | |
|
|
1168 | /* convert a double to ieee double/binary64 */ |
|
|
1169 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1170 | ecb_function_ uint64_t |
|
|
1171 | ecb_double_to_binary64 (double x) |
|
|
1172 | { |
|
|
1173 | uint64_t r; |
|
|
1174 | |
|
|
1175 | #if ECB_STDFP |
|
|
1176 | memcpy (&r, &x, 8); |
|
|
1177 | #else |
|
|
1178 | /* slow emulation, works for anything but -0 */ |
|
|
1179 | uint64_t m; |
|
|
1180 | int e; |
|
|
1181 | |
|
|
1182 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1183 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1184 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1185 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1186 | |
|
|
1187 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1188 | |
|
|
1189 | r = m & 0x8000000000000000;; |
|
|
1190 | |
|
|
1191 | if (r) |
|
|
1192 | m = -m; |
|
|
1193 | |
|
|
1194 | if (e <= -1022) |
|
|
1195 | { |
|
|
1196 | m &= 0x1fffffffffffffU; |
|
|
1197 | m >>= (-1021 - e); |
|
|
1198 | e = -1022; |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1202 | r |= m & 0xfffffffffffffU; |
|
|
1203 | #endif |
|
|
1204 | |
|
|
1205 | return r; |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | /* converts an ieee double/binary64 to a double */ |
|
|
1209 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1210 | ecb_function_ double |
|
|
1211 | ecb_binary64_to_double (uint64_t x) |
|
|
1212 | { |
|
|
1213 | double r; |
|
|
1214 | |
|
|
1215 | #if ECB_STDFP |
|
|
1216 | memcpy (&r, &x, 8); |
|
|
1217 | #else |
|
|
1218 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1219 | int neg = x >> 63; |
|
|
1220 | int e = (x >> 52) & 0x7ffU; |
|
|
1221 | |
|
|
1222 | x &= 0xfffffffffffffU; |
|
|
1223 | |
|
|
1224 | if (e) |
|
|
1225 | x |= 0x10000000000000U; |
|
|
1226 | else |
|
|
1227 | e = 1; |
|
|
1228 | |
|
|
1229 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1230 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1231 | |
|
|
1232 | r = neg ? -r : r; |
|
|
1233 | #endif |
|
|
1234 | |
|
|
1235 | return r; |
|
|
1236 | } |
|
|
1237 | |
986 | #endif |
1238 | #endif |
987 | |
1239 | |
988 | #endif |
1240 | #endif |
989 | |
1241 | |
990 | /* ECB.H END */ |
1242 | /* ECB.H END */ |
… | |
… | |
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
2136 | ev_syserr ("(libev) error creating signal/async pipe"); |
1885 | |
2137 | |
1886 | fd_intern (fds [0]); |
2138 | fd_intern (fds [0]); |
1887 | } |
2139 | } |
1888 | |
2140 | |
1889 | fd_intern (fds [1]); |
|
|
1890 | |
|
|
1891 | evpipe [0] = fds [0]; |
2141 | evpipe [0] = fds [0]; |
1892 | |
2142 | |
1893 | if (evpipe [1] < 0) |
2143 | if (evpipe [1] < 0) |
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
2144 | evpipe [1] = fds [1]; /* first call, set write fd */ |
1895 | else |
2145 | else |
… | |
… | |
1900 | /* so must not be executed on windows */ |
2150 | /* so must not be executed on windows */ |
1901 | |
2151 | |
1902 | dup2 (fds [1], evpipe [1]); |
2152 | dup2 (fds [1], evpipe [1]); |
1903 | close (fds [1]); |
2153 | close (fds [1]); |
1904 | } |
2154 | } |
|
|
2155 | |
|
|
2156 | fd_intern (evpipe [1]); |
1905 | |
2157 | |
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
2158 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
1907 | ev_io_start (EV_A_ &pipe_w); |
2159 | ev_io_start (EV_A_ &pipe_w); |
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
2160 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1909 | } |
2161 | } |
… | |
… | |
2028 | |
2280 | |
2029 | void |
2281 | void |
2030 | ev_feed_signal (int signum) EV_THROW |
2282 | ev_feed_signal (int signum) EV_THROW |
2031 | { |
2283 | { |
2032 | #if EV_MULTIPLICITY |
2284 | #if EV_MULTIPLICITY |
|
|
2285 | EV_P; |
2033 | ECB_MEMORY_FENCE_ACQUIRE; |
2286 | ECB_MEMORY_FENCE_ACQUIRE; |
2034 | EV_P = signals [signum - 1].loop; |
2287 | EV_A = signals [signum - 1].loop; |
2035 | |
2288 | |
2036 | if (!EV_A) |
2289 | if (!EV_A) |
2037 | return; |
2290 | return; |
2038 | #endif |
2291 | #endif |
2039 | |
2292 | |
… | |
… | |
2292 | { |
2545 | { |
2293 | return userdata; |
2546 | return userdata; |
2294 | } |
2547 | } |
2295 | |
2548 | |
2296 | void |
2549 | void |
2297 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
2550 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
2298 | { |
2551 | { |
2299 | invoke_cb = invoke_pending_cb; |
2552 | invoke_cb = invoke_pending_cb; |
2300 | } |
2553 | } |
2301 | |
2554 | |
2302 | void |
2555 | void |
2303 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
2556 | ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW |
2304 | { |
2557 | { |
2305 | release_cb = release; |
2558 | release_cb = release; |
2306 | acquire_cb = acquire; |
2559 | acquire_cb = acquire; |
2307 | } |
2560 | } |
2308 | #endif |
2561 | #endif |
… | |
… | |
3692 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3945 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
3693 | |
3946 | |
3694 | static void noinline |
3947 | static void noinline |
3695 | infy_add (EV_P_ ev_stat *w) |
3948 | infy_add (EV_P_ ev_stat *w) |
3696 | { |
3949 | { |
3697 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3950 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3951 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3952 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3953 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3698 | |
3954 | |
3699 | if (w->wd >= 0) |
3955 | if (w->wd >= 0) |
3700 | { |
3956 | { |
3701 | struct statfs sfs; |
3957 | struct statfs sfs; |
3702 | |
3958 | |
… | |
… | |
3706 | |
3962 | |
3707 | if (!fs_2625) |
3963 | if (!fs_2625) |
3708 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3964 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3709 | else if (!statfs (w->path, &sfs) |
3965 | else if (!statfs (w->path, &sfs) |
3710 | && (sfs.f_type == 0x1373 /* devfs */ |
3966 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3967 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3968 | || sfs.f_type == 0x4d44 /* msdos */ |
3711 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
3969 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3970 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3971 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3972 | || sfs.f_type == 0x5346544e /* ntfs */ |
3712 | || sfs.f_type == 0x3153464a /* jfs */ |
3973 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3974 | || sfs.f_type == 0x9123683e /* btrfs */ |
3713 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3975 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3714 | || sfs.f_type == 0x01021994 /* tempfs */ |
3976 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3715 | || sfs.f_type == 0x58465342 /* xfs */)) |
3977 | || sfs.f_type == 0x58465342 /* xfs */)) |
3716 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3978 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3717 | else |
3979 | else |
3718 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3980 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3719 | } |
3981 | } |