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Comparing libev/ev.c (file contents):
Revision 1.456 by root, Thu Jul 4 22:32:23 2013 UTC vs.
Revision 1.470 by root, Sun Sep 7 13:44:21 2014 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 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
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
258# endif
259#endif
260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
261# endif 267# endif
262#endif 268#endif
263 269
264#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
485/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
486/* ECB.H BEGIN */ 492/* ECB.H BEGIN */
487/* 493/*
488 * libecb - http://software.schmorp.de/pkg/libecb 494 * libecb - http://software.schmorp.de/pkg/libecb
489 * 495 *
490 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
491 * Copyright (©) 2011 Emanuele Giaquinta 497 * Copyright (©) 2011 Emanuele Giaquinta
492 * All rights reserved. 498 * All rights reserved.
493 * 499 *
494 * Redistribution and use in source and binary forms, with or without modifica- 500 * Redistribution and use in source and binary forms, with or without modifica-
495 * tion, are permitted provided that the following conditions are met: 501 * tion, are permitted provided that the following conditions are met:
… …
509 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
510 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513 * OF THE POSSIBILITY OF SUCH DAMAGE. 519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
514 */ 531 */
515 532
516#ifndef ECB_H 533#ifndef ECB_H
517#define ECB_H 534#define ECB_H
518 535
… …
550 #define ECB_PTRSIZE 4 567 #define ECB_PTRSIZE 4
551 #endif 568 #endif
552#endif 569#endif
553 570
554/* work around x32 idiocy by defining proper macros */ 571/* work around x32 idiocy by defining proper macros */
555#if __x86_64 || _M_AMD64 572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
556 #if __ILP32 573 #if _ILP32
557 #define ECB_AMD64_X32 1 574 #define ECB_AMD64_X32 1
558 #else 575 #else
559 #define ECB_AMD64 1 576 #define ECB_AMD64 1
560 #endif 577 #endif
561#endif 578#endif
… …
573 #else 590 #else
574 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
575 #endif 592 #endif
576#endif 593#endif
577 594
578#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
579#define ECB_C99 (__STDC_VERSION__ >= 199901L)
580#define ECB_C11 (__STDC_VERSION__ >= 201112L)
581#define ECB_CPP (__cplusplus+0) 595#define ECB_CPP (__cplusplus+0)
582#define ECB_CPP11 (__cplusplus >= 201103L) 596#define ECB_CPP11 (__cplusplus >= 201103L)
597
598#if ECB_CPP
599 #define ECB_C 0
600 #define ECB_STDC_VERSION 0
601#else
602 #define ECB_C 1
603 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif
605
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
583 608
584#if ECB_CPP 609#if ECB_CPP
585 #define ECB_EXTERN_C extern "C" 610 #define ECB_EXTERN_C extern "C"
586 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
587 #define ECB_EXTERN_C_END } 612 #define ECB_EXTERN_C_END }
… …
620 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
622 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
623 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
624 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
625 #elif __sparc || __sparc__ 652 #elif (__sparc || __sparc__) && !__sparcv8
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
629 #elif defined __s390__ || defined __s390x__ 656 #elif defined __s390__ || defined __s390x__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
631 #elif defined __mips__ 658 #elif defined __mips__
632 /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ 659 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
633 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ 660 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") 661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
635 #elif defined __alpha__ 662 #elif defined __alpha__
636 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
637 #elif defined __hppa__ 664 #elif defined __hppa__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") 665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
639 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
640 #elif defined __ia64__ 667 #elif defined __ia64__
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
669 #elif defined __m68k__
670 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
671 #elif defined __m88k__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
673 #elif defined __sh__
674 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
642 #endif 675 #endif
643 #endif 676 #endif
644#endif 677#endif
645 678
646#ifndef ECB_MEMORY_FENCE 679#ifndef ECB_MEMORY_FENCE
647 #if ECB_GCC_VERSION(4,7) 680 #if ECB_GCC_VERSION(4,7)
648 /* see comment below (stdatomic.h) about the C11 memory model. */ 681 /* see comment below (stdatomic.h) about the C11 memory model. */
649 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
650 685
651 /* The __has_feature syntax from clang is so misdesigned that we cannot use it 686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
652 * without risking compile time errors with other compilers. We *could* 687 * without risking compile time errors with other compilers. We *could*
653 * define our own ecb_clang_has_feature, but I just can't be bothered to work 688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
654 * around this shit time and again. 689 * around this shit time and again.
655 * #elif defined __clang && __has_feature (cxx_atomic) 690 * #elif defined __clang && __has_feature (cxx_atomic)
656 * // see comment below (stdatomic.h) about the C11 memory model. 691 * // see comment below (stdatomic.h) about the C11 memory model.
657 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
658 */ 695 */
659 696
660 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
661 #define ECB_MEMORY_FENCE __sync_synchronize () 698 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
701 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
702 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
703 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
704 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
662 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
663 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
664 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
665 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
666 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
686 /* any fence other than seq_cst, which isn't very efficient for us. */ 729 /* any fence other than seq_cst, which isn't very efficient for us. */
687 /* Why that is, we don't know - either the C11 memory model is quite useless */ 730 /* Why that is, we don't know - either the C11 memory model is quite useless */
688 /* for most usages, or gcc and clang have a bug */ 731 /* for most usages, or gcc and clang have a bug */
689 /* I *currently* lean towards the latter, and inefficiently implement */ 732 /* I *currently* lean towards the latter, and inefficiently implement */
690 /* all three of ecb's fences as a seq_cst fence */ 733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
691 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
692 #endif 737 #endif
693#endif 738#endif
694 739
695#ifndef ECB_MEMORY_FENCE 740#ifndef ECB_MEMORY_FENCE
… …
752 #define ecb_is_constant(expr) __builtin_constant_p (expr) 797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
753 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
754 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
755#else 800#else
756 #define ecb_attribute(attrlist) 801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806
757 #define ecb_is_constant(expr) 0 807 #define ecb_is_constant(expr) 0
758 #define ecb_expect(expr,value) (expr) 808 #define ecb_expect(expr,value) (expr)
759 #define ecb_prefetch(addr,rw,locality) 809 #define ecb_prefetch(addr,rw,locality)
760#endif 810#endif
761 811
… …
764 #define ecb_decltype(x) __decltype(x) 814 #define ecb_decltype(x) __decltype(x)
765#elif ECB_GCC_VERSION(3,0) 815#elif ECB_GCC_VERSION(3,0)
766 #define ecb_decltype(x) __typeof(x) 816 #define ecb_decltype(x) __typeof(x)
767#endif 817#endif
768 818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
769#define ecb_noinline ecb_attribute ((__noinline__)) 825#define ecb_noinline ecb_attribute ((__noinline__))
770#define ecb_unused ecb_attribute ((__unused__)) 826#define ecb_unused ecb_attribute ((__unused__))
771#define ecb_const ecb_attribute ((__const__)) 827#define ecb_const ecb_attribute ((__const__))
772#define ecb_pure ecb_attribute ((__pure__)) 828#define ecb_pure ecb_attribute ((__pure__))
773 829
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
774#if ECB_C11 831#if ECB_C11
775 #define ecb_noreturn _Noreturn 832 #define ecb_noreturn _Noreturn
776#else 833#else
777 #define ecb_noreturn ecb_attribute ((__noreturn__)) 834 #define ecb_noreturn ecb_attribute ((__noreturn__))
778#endif 835#endif
… …
1047/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1048#if 0 \ 1105#if 0 \
1049 || __i386 || __i386__ \ 1106 || __i386 || __i386__ \
1050 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1051 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1052 || defined __arm__ && defined __ARM_EABI__ \
1053 || defined __s390__ || defined __s390x__ \ 1109 || defined __s390__ || defined __s390x__ \
1054 || defined __mips__ \ 1110 || defined __mips__ \
1055 || defined __alpha__ \ 1111 || defined __alpha__ \
1056 || defined __hppa__ \ 1112 || defined __hppa__ \
1057 || defined __ia64__ \ 1113 || defined __ia64__ \
1114 || defined __m68k__ \
1115 || defined __m88k__ \
1116 || defined __sh__ \
1058 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__
1059 #define ECB_STDFP 1 1120 #define ECB_STDFP 1
1060 #include <string.h> /* for memcpy */ 1121 #include <string.h> /* for memcpy */
1061#else 1122#else
1062 #define ECB_STDFP 0 1123 #define ECB_STDFP 0
1063 #include <math.h> /* for frexp*, ldexp* */
1064#endif 1124#endif
1065 1125
1066#ifndef ECB_NO_LIBM 1126#ifndef ECB_NO_LIBM
1127
1128 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1129
1130 /* only the oldest of old doesn't have this one. solaris. */
1131 #ifdef INFINITY
1132 #define ECB_INFINITY INFINITY
1133 #else
1134 #define ECB_INFINITY HUGE_VAL
1135 #endif
1136
1137 #ifdef NAN
1138 #define ECB_NAN NAN
1139 #else
1140 #define ECB_NAN ECB_INFINITY
1141 #endif
1142
1143 /* converts an ieee half/binary16 to a float */
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1145 ecb_function_ float
1146 ecb_binary16_to_float (uint16_t x)
1147 {
1148 int e = (x >> 10) & 0x1f;
1149 int m = x & 0x3ff;
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1067 1159
1068 /* convert a float to ieee single/binary32 */ 1160 /* convert a float to ieee single/binary32 */
1069 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; 1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1070 ecb_function_ uint32_t 1162 ecb_function_ uint32_t
1071 ecb_float_to_binary32 (float x) 1163 ecb_float_to_binary32 (float x)
… …
2515{ 2607{
2516 return userdata; 2608 return userdata;
2517} 2609}
2518 2610
2519void 2611void
2520ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2521{ 2613{
2522 invoke_cb = invoke_pending_cb; 2614 invoke_cb = invoke_pending_cb;
2523} 2615}
2524 2616
2525void 2617void
2526ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2618ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2527{ 2619{
2528 release_cb = release; 2620 release_cb = release;
2529 acquire_cb = acquire; 2621 acquire_cb = acquire;
2530} 2622}
2531#endif 2623#endif

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