[ViewVC] Diff of: cvs/libev/ev.c

Comparing libev/ev.c (file contents):
Revision 1.461 by root, Fri Dec 27 06:01:22 2013 UTC vs.
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 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
…		…
256	# else	256	# else
257	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
258	# endif	258	# endif
259	#endif	259	#endif
260		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
		267	# endif
		268	#endif
		269
261	#ifndef EV_USE_MONOTONIC	270	#ifndef EV_USE_MONOTONIC
262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0	271	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263	# define EV_USE_MONOTONIC EV_FEATURE_OS	272	# define EV_USE_MONOTONIC EV_FEATURE_OS
264	# else	273	# else
265	# define EV_USE_MONOTONIC 0	274	# define EV_USE_MONOTONIC 0
…		…
482	/* 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 */
483	/* ECB.H BEGIN */	492	/* ECB.H BEGIN */
484	/*	493	/*
485	* libecb - http://software.schmorp.de/pkg/libecb	494	* libecb - http://software.schmorp.de/pkg/libecb
486	*	495	*
487	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	496	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488	* Copyright (©) 2011 Emanuele Giaquinta	497	* Copyright (©) 2011 Emanuele Giaquinta
489	* All rights reserved.	498	* All rights reserved.
490	*	499	*
491	* 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-
492	* tion, are permitted provided that the following conditions are met:	501	* tion, are permitted provided that the following conditions are met:
…		…
506	* 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;
507	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	516	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	517	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509	* 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
510	* 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.
511	*/	531	*/
512		532
513	#ifndef ECB_H	533	#ifndef ECB_H
514	#define ECB_H	534	#define ECB_H
515		535
516	/* 16 bits major, 16 bits minor */	536	/* 16 bits major, 16 bits minor */
517	#define ECB_VERSION 0x00010003	537	#define ECB_VERSION 0x00010004
518		538
519	#ifdef _WIN32	539	#ifdef _WIN32
520	typedef signed char int8_t;	540	typedef signed char int8_t;
521	typedef unsigned char uint8_t;	541	typedef unsigned char uint8_t;
522	typedef signed short int16_t;	542	typedef signed short int16_t;
…		…
546	#else	566	#else
547	#define ECB_PTRSIZE 4	567	#define ECB_PTRSIZE 4
548	#endif	568	#endif
549	#endif	569	#endif
550		570
		571	#define ECB_GCC_AMD64 (__amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__)
		572	#define ECB_MSVC_AMD64 (_M_AMD64 \|\| _M_X64)
		573
551	/* work around x32 idiocy by defining proper macros */	574	/* work around x32 idiocy by defining proper macros */
552	#if __x86_64 \|\| _M_AMD64	575	#if ECB_GCC_AMD64 \|\| ECB_MSVC_AMD64
553	#if _ILP32	576	#if _ILP32
554	#define ECB_AMD64_X32 1	577	#define ECB_AMD64_X32 1
555	#else	578	#else
556	#define ECB_AMD64 1	579	#define ECB_AMD64 1
557	#endif	580	#endif
…		…
562	* causing enormous grief in return for some better fake benchmark numbers.	585	* causing enormous grief in return for some better fake benchmark numbers.
563	* or so.	586	* or so.
564	* we try to detect these and simply assume they are not gcc - if they have	587	* we try to detect these and simply assume they are not gcc - if they have
565	* an issue with that they should have done it right in the first place.	588	* an issue with that they should have done it right in the first place.
566	*/	589	*/
567	#ifndef ECB_GCC_VERSION
568	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__	590	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__
569	#define ECB_GCC_VERSION(major,minor) 0	591	#define ECB_GCC_VERSION(major,minor) 0
570	#else	592	#else
571	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	593	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572	#endif	594	#endif
573	#endif
574		595
575	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */	596	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) \|\| (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	597
577	#define ECB_C11 (__STDC_VERSION__ >= 201112L)	598	#if __clang__ && defined __has_builtin
		599	#define ECB_CLANG_BUILTIN(x) __has_builtin (x)
		600	#else
		601	#define ECB_CLANG_BUILTIN(x) 0
		602	#endif
		603
		604	#if __clang__ && defined __has_extension
		605	#define ECB_CLANG_EXTENSION(x) __has_extension (x)
		606	#else
		607	#define ECB_CLANG_EXTENSION(x) 0
		608	#endif
		609
578	#define ECB_CPP (__cplusplus+0)	610	#define ECB_CPP (__cplusplus+0)
579	#define ECB_CPP11 (__cplusplus >= 201103L)	611	#define ECB_CPP11 (__cplusplus >= 201103L)
		612
		613	#if ECB_CPP
		614	#define ECB_C 0
		615	#define ECB_STDC_VERSION 0
		616	#else
		617	#define ECB_C 1
		618	#define ECB_STDC_VERSION __STDC_VERSION__
		619	#endif
		620
		621	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		622	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
580		623
581	#if ECB_CPP	624	#if ECB_CPP
582	#define ECB_EXTERN_C extern "C"	625	#define ECB_EXTERN_C extern "C"
583	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	626	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584	#define ECB_EXTERN_C_END }	627	#define ECB_EXTERN_C_END }
…		…
605	#if ECB_GCC_VERSION(2,5) \|\| defined __INTEL_COMPILER \|\| (__llvm__ && __GNUC__) \|\| __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110	648	#if ECB_GCC_VERSION(2,5) \|\| defined __INTEL_COMPILER \|\| (__llvm__ && __GNUC__) \|\| __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
606	#if __i386 \|\| __i386__	649	#if __i386 \|\| __i386__
607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	650	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	651	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	652	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610	#elif __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__	653	#elif ECB_GCC_AMD64
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	654	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	655	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	656	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614	#elif __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__	657	#elif __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__
615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	658	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
…		…
617	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__	660	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__
618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
619	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \	662	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \
620	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__	663	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__
621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	664	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		665	#elif __aarch64__
		666	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622	#elif __sparc \|\| __sparc__	667	#elif (__sparc \|\| __sparc__) && !__sparcv8
623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad" : : : "memory")	668	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad" : : : "memory")
624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")	669	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")
625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")	670	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")
626	#elif defined __s390__ \|\| defined __s390x__	671	#elif defined __s390__ \|\| defined __s390x__
627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	672	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
…		…
648		693
649	#ifndef ECB_MEMORY_FENCE	694	#ifndef ECB_MEMORY_FENCE
650	#if ECB_GCC_VERSION(4,7)	695	#if ECB_GCC_VERSION(4,7)
651	/* see comment below (stdatomic.h) about the C11 memory model. */	696	/* see comment below (stdatomic.h) about the C11 memory model. */
652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	697	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		698	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		699	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653		700
654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	701	#elif ECB_CLANG_EXTENSION(c_atomic)
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.
658	* #elif defined __clang && __has_feature (cxx_atomic)
659	* // see comment below (stdatomic.h) about the C11 memory model.	702	/* see comment below (stdatomic.h) about the C11 memory model. */
660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	703	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661	*/	704	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		705	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662		706
663	#elif ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__	707	#elif ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__
664	#define ECB_MEMORY_FENCE __sync_synchronize ()	708	#define ECB_MEMORY_FENCE __sync_synchronize ()
		709	#elif _MSC_VER >= 1500 /* VC++ 2008 */
		710	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		711	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		712	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		713	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		714	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
665	#elif _MSC_VER >= 1400 /* VC++ 2005 */	715	#elif _MSC_VER >= 1400 /* VC++ 2005 */
666	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	716	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	717	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	718	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	719	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
689	/* any fence other than seq_cst, which isn't very efficient for us. */	739	/* any fence other than seq_cst, which isn't very efficient for us. */
690	/* Why that is, we don't know - either the C11 memory model is quite useless */	740	/* Why that is, we don't know - either the C11 memory model is quite useless */
691	/* for most usages, or gcc and clang have a bug */	741	/* for most usages, or gcc and clang have a bug */
692	/* I currently lean towards the latter, and inefficiently implement */	742	/* I currently lean towards the latter, and inefficiently implement */
693	/* all three of ecb's fences as a seq_cst fence */	743	/* all three of ecb's fences as a seq_cst fence */
		744	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		745	/* for all __atomic_thread_fence's except seq_cst */
694	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	746	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
695	#endif	747	#endif
696	#endif	748	#endif
697		749
698	#ifndef ECB_MEMORY_FENCE	750	#ifndef ECB_MEMORY_FENCE
…		…
721	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	773	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722	#endif	774	#endif
723		775
724	/*****************************************************************************/	776	/*****************************************************************************/
725		777
726	#if __cplusplus	778	#if ECB_CPP
727	#define ecb_inline static inline	779	#define ecb_inline static inline
728	#elif ECB_GCC_VERSION(2,5)	780	#elif ECB_GCC_VERSION(2,5)
729	#define ecb_inline static __inline__	781	#define ecb_inline static __inline__
730	#elif ECB_C99	782	#elif ECB_C99
731	#define ecb_inline static inline	783	#define ecb_inline static inline
…		…
745		797
746	#define ECB_CONCAT_(a, b) a ## b	798	#define ECB_CONCAT_(a, b) a ## b
747	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	799	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748	#define ECB_STRINGIFY_(a) # a	800	#define ECB_STRINGIFY_(a) # a
749	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	801	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		802	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
750		803
751	#define ecb_function_ ecb_inline	804	#define ecb_function_ ecb_inline
752		805
753	#if ECB_GCC_VERSION(3,1)	806	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_VERSION(2,8)
754	#define ecb_attribute(attrlist) __attribute__(attrlist)	807	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		808	#else
		809	#define ecb_attribute(attrlist)
		810	#endif
		811
		812	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_constant_p)
755	#define ecb_is_constant(expr) __builtin_constant_p (expr)	813	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		814	#else
		815	/* possible C11 impl for integral types
		816	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		817	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct )0 : (void )((expr) - (expr)), ecb_is_constant_struct : 0, default: 1)) /
		818
		819	#define ecb_is_constant(expr) 0
		820	#endif
		821
		822	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_expect)
756	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	823	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		824	#else
		825	#define ecb_expect(expr,value) (expr)
		826	#endif
		827
		828	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_prefetch)
757	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	829	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758	#else	830	#else
759	#define ecb_attribute(attrlist)
760	#define ecb_is_constant(expr) 0
761	#define ecb_expect(expr,value) (expr)
762	#define ecb_prefetch(addr,rw,locality)	831	#define ecb_prefetch(addr,rw,locality)
763	#endif	832	#endif
764		833
765	/* no emulation for ecb_decltype */	834	/* no emulation for ecb_decltype */
766	#if ECB_GCC_VERSION(4,5)	835	#if ECB_CPP11
		836	// older implementations might have problems with decltype(x)::type, work around it
		837	template<class T> struct ecb_decltype_t { typedef T type; };
767	#define ecb_decltype(x) __decltype(x)	838	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
768	#elif ECB_GCC_VERSION(3,0)	839	#elif ECB_GCC_VERSION(3,0) \|\| ECB_CLANG_VERSION(2,8)
769	#define ecb_decltype(x) __typeof(x)	840	#define ecb_decltype(x) __typeof__ (x)
770	#endif	841	#endif
771		842
		843	#if _MSC_VER >= 1300
		844	#define ecb_deprecated __declspec (deprecated)
		845	#else
		846	#define ecb_deprecated ecb_attribute ((__deprecated__))
		847	#endif
		848
		849	#if __MSC_VER >= 1500
		850	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		851	#elif ECB_GCC_VERSION(4,5)
		852	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		853	#else
		854	#define ecb_deprecated_message(msg) ecb_deprecated
		855	#endif
		856
		857	#if _MSC_VER >= 1400
		858	#define ecb_noinline __declspec (noinline)
		859	#else
772	#define ecb_noinline ecb_attribute ((__noinline__))	860	#define ecb_noinline ecb_attribute ((__noinline__))
		861	#endif
		862
773	#define ecb_unused ecb_attribute ((__unused__))	863	#define ecb_unused ecb_attribute ((__unused__))
774	#define ecb_const ecb_attribute ((__const__))	864	#define ecb_const ecb_attribute ((__const__))
775	#define ecb_pure ecb_attribute ((__pure__))	865	#define ecb_pure ecb_attribute ((__pure__))
776		866
777	#if ECB_C11	867	#if ECB_C11 \|\| __IBMC_NORETURN
		868	/* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
778	#define ecb_noreturn _Noreturn	869	#define ecb_noreturn _Noreturn
		870	#elif ECB_CPP11
		871	#define ecb_noreturn [[noreturn]]
		872	#elif _MSC_VER >= 1200
		873	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		874	#define ecb_noreturn __declspec (noreturn)
779	#else	875	#else
780	#define ecb_noreturn ecb_attribute ((__noreturn__))	876	#define ecb_noreturn ecb_attribute ((__noreturn__))
781	#endif	877	#endif
782		878
783	#if ECB_GCC_VERSION(4,3)	879	#if ECB_GCC_VERSION(4,3)
…		…
798	/* for compatibility to the rest of the world */	894	/* for compatibility to the rest of the world */
799	#define ecb_likely(expr) ecb_expect_true (expr)	895	#define ecb_likely(expr) ecb_expect_true (expr)
800	#define ecb_unlikely(expr) ecb_expect_false (expr)	896	#define ecb_unlikely(expr) ecb_expect_false (expr)
801		897
802	/* count trailing zero bits and count # of one bits */	898	/* count trailing zero bits and count # of one bits */
803	#if ECB_GCC_VERSION(3,4)	899	#if ECB_GCC_VERSION(3,4) \
		900	\|\| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		901	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		902	&& ECB_CLANG_BUILTIN(__builtin_popcount))
804	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	903	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	904	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	905	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807	#define ecb_ctz32(x) __builtin_ctz (x)	906	#define ecb_ctz32(x) __builtin_ctz (x)
808	#define ecb_ctz64(x) __builtin_ctzll (x)	907	#define ecb_ctz64(x) __builtin_ctzll (x)
809	#define ecb_popcount32(x) __builtin_popcount (x)	908	#define ecb_popcount32(x) __builtin_popcount (x)
810	/* no popcountll */	909	/* no popcountll */
811	#else	910	#else
812	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	911	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
813	ecb_function_ int	912	ecb_function_ ecb_const int
814	ecb_ctz32 (uint32_t x)	913	ecb_ctz32 (uint32_t x)
815	{	914	{
816	int r = 0;	915	int r = 0;
817		916
818	x &= ~x + 1; /* this isolates the lowest bit */	917	x &= ~x + 1; /* this isolates the lowest bit */
…		…
832	#endif	931	#endif
833		932
834	return r;	933	return r;
835	}	934	}
836		935
837	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	936	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
838	ecb_function_ int	937	ecb_function_ ecb_const int
839	ecb_ctz64 (uint64_t x)	938	ecb_ctz64 (uint64_t x)
840	{	939	{
841	int shift = x & 0xffffffffU ? 0 : 32;	940	int shift = x & 0xffffffffU ? 0 : 32;
842	return ecb_ctz32 (x >> shift) + shift;	941	return ecb_ctz32 (x >> shift) + shift;
843	}	942	}
844		943
845	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	944	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
846	ecb_function_ int	945	ecb_function_ ecb_const int
847	ecb_popcount32 (uint32_t x)	946	ecb_popcount32 (uint32_t x)
848	{	947	{
849	x -= (x >> 1) & 0x55555555;	948	x -= (x >> 1) & 0x55555555;
850	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	949	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851	x = ((x >> 4) + x) & 0x0f0f0f0f;	950	x = ((x >> 4) + x) & 0x0f0f0f0f;
852	x *= 0x01010101;	951	x *= 0x01010101;
853		952
854	return x >> 24;	953	return x >> 24;
855	}	954	}
856		955
857	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	956	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
858	ecb_function_ int ecb_ld32 (uint32_t x)	957	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
859	{	958	{
860	int r = 0;	959	int r = 0;
861		960
862	if (x >> 16) { x >>= 16; r += 16; }	961	if (x >> 16) { x >>= 16; r += 16; }
863	if (x >> 8) { x >>= 8; r += 8; }	962	if (x >> 8) { x >>= 8; r += 8; }
…		…
866	if (x >> 1) { r += 1; }	965	if (x >> 1) { r += 1; }
867		966
868	return r;	967	return r;
869	}	968	}
870		969
871	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	970	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
872	ecb_function_ int ecb_ld64 (uint64_t x)	971	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
873	{	972	{
874	int r = 0;	973	int r = 0;
875		974
876	if (x >> 32) { x >>= 32; r += 32; }	975	if (x >> 32) { x >>= 32; r += 32; }
877		976
878	return r + ecb_ld32 (x);	977	return r + ecb_ld32 (x);
879	}	978	}
880	#endif	979	#endif
881		980
882	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	981	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
883	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	982	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
884	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	983	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
885	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	984	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886		985
887	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	986	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
888	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	987	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
889	{	988	{
890	return ( (x * 0x0802U & 0x22110U)	989	return ( (x * 0x0802U & 0x22110U)
891	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	990	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892	}	991	}
893		992
894	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	993	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
895	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	994	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
896	{	995	{
897	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);	996	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
898	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);	997	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
899	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);	998	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
900	x = ( x >> 8 ) \| ( x << 8);	999	x = ( x >> 8 ) \| ( x << 8);
901		1000
902	return x;	1001	return x;
903	}	1002	}
904		1003
905	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1004	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
906	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1005	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
907	{	1006	{
908	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);	1007	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
909	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);	1008	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
910	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);	1009	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
911	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);	1010	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
…		…
914	return x;	1013	return x;
915	}	1014	}
916		1015
917	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1016	/* popcount64 is only available on 64 bit cpus as gcc builtin */
918	/* so for this version we are lazy */	1017	/* so for this version we are lazy */
919	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1018	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
920	ecb_function_ int	1019	ecb_function_ ecb_const int
921	ecb_popcount64 (uint64_t x)	1020	ecb_popcount64 (uint64_t x)
922	{	1021	{
923	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1022	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924	}	1023	}
925		1024
926	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1025	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
927	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1026	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
928	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1027	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
929	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1028	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
930	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1029	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
931	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1030	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
932	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1031	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
933	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1032	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
934		1033
935	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }	1034	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
936	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }	1035	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
937	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }	1036	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
938	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }	1037	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
939	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }	1038	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
940	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }	1039	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
941	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }	1040	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
942	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }	1041	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
943		1042
944	#if ECB_GCC_VERSION(4,3)	1043	#if ECB_GCC_VERSION(4,3) \|\| (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
945	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1044	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
946	#define ecb_bswap32(x) __builtin_bswap32 (x)	1045	#define ecb_bswap32(x) __builtin_bswap32 (x)
947	#define ecb_bswap64(x) __builtin_bswap64 (x)	1046	#define ecb_bswap64(x) __builtin_bswap64 (x)
948	#else	1047	#else
949	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1048	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
950	ecb_function_ uint16_t	1049	ecb_function_ ecb_const uint16_t
951	ecb_bswap16 (uint16_t x)	1050	ecb_bswap16 (uint16_t x)
952	{	1051	{
953	return ecb_rotl16 (x, 8);	1052	return ecb_rotl16 (x, 8);
954	}	1053	}
955		1054
956	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1055	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
957	ecb_function_ uint32_t	1056	ecb_function_ ecb_const uint32_t
958	ecb_bswap32 (uint32_t x)	1057	ecb_bswap32 (uint32_t x)
959	{	1058	{
960	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);	1059	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
961	}	1060	}
962		1061
963	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1062	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
964	ecb_function_ uint64_t	1063	ecb_function_ ecb_const uint64_t
965	ecb_bswap64 (uint64_t x)	1064	ecb_bswap64 (uint64_t x)
966	{	1065	{
967	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);	1066	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
968	}	1067	}
969	#endif	1068	#endif
970		1069
971	#if ECB_GCC_VERSION(4,5)	1070	#if ECB_GCC_VERSION(4,5) \|\| ECB_CLANG_BUILTIN(__builtin_unreachable)
972	#define ecb_unreachable() __builtin_unreachable ()	1071	#define ecb_unreachable() __builtin_unreachable ()
973	#else	1072	#else
974	/* this seems to work fine, but gcc always emits a warning for it :/ */	1073	/* this seems to work fine, but gcc always emits a warning for it :/ */
975	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1074	ecb_inline ecb_noreturn void ecb_unreachable (void);
976	ecb_inline void ecb_unreachable (void) { }	1075	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
977	#endif	1076	#endif
978		1077
979	/* try to tell the compiler that some condition is definitely true */	1078	/* try to tell the compiler that some condition is definitely true */
980	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1079	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981		1080
982	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1081	ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
983	ecb_inline unsigned char	1082	ecb_inline ecb_const unsigned char
984	ecb_byteorder_helper (void)	1083	ecb_byteorder_helper (void)
985	{	1084	{
986	/* the union code still generates code under pressure in gcc, */	1085	/* the union code still generates code under pressure in gcc, */
987	/* but less than using pointers, and always seems to */	1086	/* but less than using pointers, and always seems to */
988	/* successfully return a constant. */	1087	/* successfully return a constant. */
989	/* the reason why we have this horrible preprocessor mess */	1088	/* the reason why we have this horrible preprocessor mess */
990	/* is to avoid it in all cases, at least on common architectures */	1089	/* is to avoid it in all cases, at least on common architectures */
991	/* or when using a recent enough gcc version (>= 4.6) */	1090	/* or when using a recent enough gcc version (>= 4.6) */
992	#if __i386 \|\| __i386__ \|\| _M_X86 \|\| __amd64 \|\| __amd64__ \|\| _M_X64	1091	#if ((__i386 \|\| __i386__) && !__VOS__) \|\| _M_IX86 \|\| ECB_GCC_AMD64 \|\| ECB_MSVC_AMD64
993	return 0x44;	1092	return 0x44;
994	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__	1093	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
995	return 0x44;	1094	return 0x44;
996	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__	1095	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
997	return 0x11;	1096	return 0x11;
…		…
1003	} u = { 0x11223344 };	1102	} u = { 0x11223344 };
1004	return u.c;	1103	return u.c;
1005	#endif	1104	#endif
1006	}	1105	}
1007		1106
1008	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1107	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1009	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1108	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1010	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1109	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1011	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1110	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1012		1111
1013	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99	1112	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
1014	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1113	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015	#else	1114	#else
1016	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1115	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017	#endif	1116	#endif
1018		1117
1019	#if __cplusplus	1118	#if ECB_CPP
1020	template<typename T>	1119	template<typename T>
1021	static inline T ecb_div_rd (T val, T div)	1120	static inline T ecb_div_rd (T val, T div)
1022	{	1121	{
1023	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1122	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024	}	1123	}
…		…
1048		1147
1049	/* basically, everything uses "ieee pure-endian" floating point numbers */	1148	/* basically, everything uses "ieee pure-endian" floating point numbers */
1050	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1149	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051	#if 0 \	1150	#if 0 \
1052	\|\| __i386 \|\| __i386__ \	1151	\|\| __i386 \|\| __i386__ \
1053	\|\| __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__ \	1152	\|\| ECB_GCC_AMD64 \
1054	\|\| __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__ \	1153	\|\| __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__ \
1055	\|\| defined __arm__ && defined __ARM_EABI__ \
1056	\|\| defined __s390__ \|\| defined __s390x__ \	1154	\|\| defined __s390__ \|\| defined __s390x__ \
1057	\|\| defined __mips__ \	1155	\|\| defined __mips__ \
1058	\|\| defined __alpha__ \	1156	\|\| defined __alpha__ \
1059	\|\| defined __hppa__ \	1157	\|\| defined __hppa__ \
1060	\|\| defined __ia64__ \	1158	\|\| defined __ia64__ \
1061	\|\| defined __m68k__ \	1159	\|\| defined __m68k__ \
1062	\|\| defined __m88k__ \	1160	\|\| defined __m88k__ \
1063	\|\| defined __sh__ \	1161	\|\| defined __sh__ \
1064	\|\| defined _M_IX86 \|\| defined _M_AMD64 \|\| defined _M_IA64	1162	\|\| defined _M_IX86 \|\| defined ECB_MSVC_AMD64 \|\| defined _M_IA64 \
		1163	\|\| (defined __arm__ && (defined __ARM_EABI__ \|\| defined __EABI__ \|\| defined __VFP_FP__ \|\| defined _WIN32_WCE \|\| defined __ANDROID__)) \
		1164	\|\| defined __aarch64__
1065	#define ECB_STDFP 1	1165	#define ECB_STDFP 1
1066	#include <string.h> /* for memcpy */	1166	#include <string.h> /* for memcpy */
1067	#else	1167	#else
1068	#define ECB_STDFP 0	1168	#define ECB_STDFP 0
1069	#endif	1169	#endif
1070		1170
1071	#ifndef ECB_NO_LIBM	1171	#ifndef ECB_NO_LIBM
1072		1172
1073	#include <math.h> /* for frexp, ldexp, INFINITY, NAN */	1173	#include <math.h> /* for frexp, ldexp, INFINITY, NAN */
1074		1174
		1175	/* only the oldest of old doesn't have this one. solaris. */
		1176	#ifdef INFINITY
		1177	#define ECB_INFINITY INFINITY
		1178	#else
		1179	#define ECB_INFINITY HUGE_VAL
		1180	#endif
		1181
1075	#ifdef NEN	1182	#ifdef NAN
1076	#define ECB_NAN NAN	1183	#define ECB_NAN NAN
1077	#else	1184	#else
1078	#define ECB_NAN INFINITY	1185	#define ECB_NAN ECB_INFINITY
1079	#endif	1186	#endif
1080		1187
		1188	#if ECB_C99 \|\| _XOPEN_VERSION >= 600 \|\| _POSIX_VERSION >= 200112L
		1189	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
		1190	#else
		1191	#define ecb_ldexpf(x,e) (float) ldexp ((float) (x), (e))
		1192	#endif
		1193
1081	/* converts an ieee half/binary16 to a float */	1194	/* converts an ieee half/binary16 to a float */
1082	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;	1195	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1083	ecb_function_ float	1196	ecb_function_ ecb_const float
1084	ecb_binary16_to_float (uint16_t x)	1197	ecb_binary16_to_float (uint16_t x)
1085	{	1198	{
1086	int e = (x >> 10) & 0x1f;	1199	int e = (x >> 10) & 0x1f;
1087	int m = x & 0x3ff;	1200	int m = x & 0x3ff;
1088	float r;	1201	float r;
1089		1202
1090	if (!e ) r = ldexpf (m , -24);	1203	if (!e ) r = ecb_ldexpf (m , -24);
1091	else if (e != 31) r = ldexpf (m + 0x400, e - 25);	1204	else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1092	else if (m ) r = ECB_NAN;	1205	else if (m ) r = ECB_NAN;
1093	else r = INFINITY;	1206	else r = ECB_INFINITY;
1094		1207
1095	return x & 0x8000 ? -r : r;	1208	return x & 0x8000 ? -r : r;
1096	}	1209	}
1097		1210
1098	/* convert a float to ieee single/binary32 */	1211	/* convert a float to ieee single/binary32 */
1099	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1212	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1100	ecb_function_ uint32_t	1213	ecb_function_ ecb_const uint32_t
1101	ecb_float_to_binary32 (float x)	1214	ecb_float_to_binary32 (float x)
1102	{	1215	{
1103	uint32_t r;	1216	uint32_t r;
1104		1217
1105	#if ECB_STDFP	1218	#if ECB_STDFP
…		…
1134		1247
1135	return r;	1248	return r;
1136	}	1249	}
1137		1250
1138	/* converts an ieee single/binary32 to a float */	1251	/* converts an ieee single/binary32 to a float */
1139	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1252	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1140	ecb_function_ float	1253	ecb_function_ ecb_const float
1141	ecb_binary32_to_float (uint32_t x)	1254	ecb_binary32_to_float (uint32_t x)
1142	{	1255	{
1143	float r;	1256	float r;
1144		1257
1145	#if ECB_STDFP	1258	#if ECB_STDFP
…		…
1155	x \|= 0x800000U;	1268	x \|= 0x800000U;
1156	else	1269	else
1157	e = 1;	1270	e = 1;
1158		1271
1159	/* we distrust ldexpf a bit and do the 2*-24 scaling by an extra multiply /	1272	/* we distrust ldexpf a bit and do the 2*-24 scaling by an extra multiply /
1160	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1273	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1161		1274
1162	r = neg ? -r : r;	1275	r = neg ? -r : r;
1163	#endif	1276	#endif
1164		1277
1165	return r;	1278	return r;
1166	}	1279	}
1167		1280
1168	/* convert a double to ieee double/binary64 */	1281	/* convert a double to ieee double/binary64 */
1169	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1282	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1170	ecb_function_ uint64_t	1283	ecb_function_ ecb_const uint64_t
1171	ecb_double_to_binary64 (double x)	1284	ecb_double_to_binary64 (double x)
1172	{	1285	{
1173	uint64_t r;	1286	uint64_t r;
1174		1287
1175	#if ECB_STDFP	1288	#if ECB_STDFP
…		…
1204		1317
1205	return r;	1318	return r;
1206	}	1319	}
1207		1320
1208	/* converts an ieee double/binary64 to a double */	1321	/* converts an ieee double/binary64 to a double */
1209	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1322	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1210	ecb_function_ double	1323	ecb_function_ ecb_const double
1211	ecb_binary64_to_double (uint64_t x)	1324	ecb_binary64_to_double (uint64_t x)
1212	{	1325	{
1213	double r;	1326	double r;
1214		1327
1215	#if ECB_STDFP	1328	#if ECB_STDFP
…		…
2551	{	2664	{
2552	invoke_cb = invoke_pending_cb;	2665	invoke_cb = invoke_pending_cb;
2553	}	2666	}
2554		2667
2555	void	2668	void
2556	ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW	2669	ev_set_loop_release_cb (EV_P_ void (release)(EV_P) EV_THROW, void (acquire)(EV_P) EV_THROW) EV_THROW
2557	{	2670	{
2558	release_cb = release;	2671	release_cb = release;
2559	acquire_cb = acquire;	2672	acquire_cb = acquire;
2560	}	2673	}
2561	#endif	2674	#endif

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Comparing libev/ev.c (file contents): Revision 1.461 by root, Fri Dec 27 06:01:22 2013 UTC vs. Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 UTC

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Comparing libev/ev.c (file contents):
Revision 1.461 by root, Fri Dec 27 06:01:22 2013 UTC vs.
Revision 1.475 by sf-exg, Wed Apr 1 06:57:41 2015 UTC