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Comparing libev/ev.c (file contents):
Revision 1.462 by root, Sun Jan 5 02:59:36 2014 UTC vs.
Revision 1.481 by root, Thu Jun 1 20:25:50 2017 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
…		…
354		363
355	#ifndef EV_HEAP_CACHE_AT	364	#ifndef EV_HEAP_CACHE_AT
356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	365	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357	#endif	366	#endif
358		367
359	#ifdef ANDROID	368	#ifdef __ANDROID__
360	/* supposedly, android doesn't typedef fd_mask */	369	/* supposedly, android doesn't typedef fd_mask */
361	# undef EV_USE_SELECT	370	# undef EV_USE_SELECT
362	# define EV_USE_SELECT 0	371	# define EV_USE_SELECT 0
363	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */	372	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364	# undef EV_USE_CLOCK_SYSCALL	373	# undef EV_USE_CLOCK_SYSCALL
…		…
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 (©) 2009-2013 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 0x00010005
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;
…		…
539	typedef uint32_t uintptr_t;	559	typedef uint32_t uintptr_t;
540	typedef int32_t intptr_t;	560	typedef int32_t intptr_t;
541	#endif	561	#endif
542	#else	562	#else
543	#include <inttypes.h>	563	#include <inttypes.h>
544	#if UINTMAX_MAX > 0xffffffffU	564	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545	#define ECB_PTRSIZE 8	565	#define ECB_PTRSIZE 8
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 __amd64 || __x86_64 || _M_AMD64 || _M_X64	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 }
…		…
597	#define ECB_NO_SMP 1	640	#define ECB_NO_SMP 1
598	#endif	641	#endif
599		642
600	#if ECB_NO_SMP	643	#if ECB_NO_SMP
601	#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 */
602	#endif	654	#endif
603		655
604	#ifndef ECB_MEMORY_FENCE	656	#ifndef ECB_MEMORY_FENCE
605	#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
606	#if __i386 || __i386__	658	#if __i386 || __i386__
607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	659	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	660	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	661	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	662	#elif ECB_GCC_AMD64
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	663	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	664	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	665	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	666	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615	#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 */
616	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	675	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	676	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		677	|| defined __ARM_ARCH_6T2__
618	#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")
619	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \	679	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	680	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	681	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		682	#elif __aarch64__
		683	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
622	#elif (__sparc || __sparc__) && !__sparcv8	684	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623	#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")
624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	686	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	687	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626	#elif defined __s390__ || defined __s390x__	688	#elif defined __s390__ || defined __s390x__
627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	689	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
…		…
648		710
649	#ifndef ECB_MEMORY_FENCE	711	#ifndef ECB_MEMORY_FENCE
650	#if ECB_GCC_VERSION(4,7)	712	#if ECB_GCC_VERSION(4,7)
651	/* see comment below (stdatomic.h) about the C11 memory model. */	713	/* see comment below (stdatomic.h) about the C11 memory model. */
652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	714	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		715	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		716	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653		717
654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	718	#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.	719	/* see comment below (stdatomic.h) about the C11 memory model. */
660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	720	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661	*/	721	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		722	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662		723
663	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	724	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664	#define ECB_MEMORY_FENCE __sync_synchronize ()	725	#define ECB_MEMORY_FENCE __sync_synchronize ()
665	#elif _MSC_VER >= 1500 /* VC++ 2008 */	726	#elif _MSC_VER >= 1500 /* VC++ 2008 */
666	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */	727	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
…		…
695	/* any fence other than seq_cst, which isn't very efficient for us. */	756	/* any fence other than seq_cst, which isn't very efficient for us. */
696	/* Why that is, we don't know - either the C11 memory model is quite useless */	757	/* Why that is, we don't know - either the C11 memory model is quite useless */
697	/* for most usages, or gcc and clang have a bug */	758	/* for most usages, or gcc and clang have a bug */
698	/* I *currently* lean towards the latter, and inefficiently implement */	759	/* I *currently* lean towards the latter, and inefficiently implement */
699	/* all three of ecb's fences as a seq_cst fence */	760	/* all three of ecb's fences as a seq_cst fence */
		761	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		762	/* for all __atomic_thread_fence's except seq_cst */
700	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	763	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
701	#endif	764	#endif
702	#endif	765	#endif
703		766
704	#ifndef ECB_MEMORY_FENCE	767	#ifndef ECB_MEMORY_FENCE
…		…
727	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	790	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
728	#endif	791	#endif
729		792
730	/*****************************************************************************/	793	/*****************************************************************************/
731		794
732	#if __cplusplus	795	#if ECB_CPP
733	#define ecb_inline static inline	796	#define ecb_inline static inline
734	#elif ECB_GCC_VERSION(2,5)	797	#elif ECB_GCC_VERSION(2,5)
735	#define ecb_inline static __inline__	798	#define ecb_inline static __inline__
736	#elif ECB_C99	799	#elif ECB_C99
737	#define ecb_inline static inline	800	#define ecb_inline static inline
…		…
751		814
752	#define ECB_CONCAT_(a, b) a ## b	815	#define ECB_CONCAT_(a, b) a ## b
753	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	816	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
754	#define ECB_STRINGIFY_(a) # a	817	#define ECB_STRINGIFY_(a) # a
755	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	818	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		819	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
756		820
757	#define ecb_function_ ecb_inline	821	#define ecb_function_ ecb_inline
758		822
759	#if ECB_GCC_VERSION(3,1)	823	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
760	#define ecb_attribute(attrlist) __attribute__(attrlist)	824	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		825	#else
		826	#define ecb_attribute(attrlist)
		827	#endif
		828
		829	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
761	#define ecb_is_constant(expr) __builtin_constant_p (expr)	830	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		831	#else
		832	/* possible C11 impl for integral types
		833	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		834	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		835
		836	#define ecb_is_constant(expr) 0
		837	#endif
		838
		839	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
762	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	840	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		841	#else
		842	#define ecb_expect(expr,value) (expr)
		843	#endif
		844
		845	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
763	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	846	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
764	#else	847	#else
765	#define ecb_attribute(attrlist)
766	#define ecb_is_constant(expr) 0
767	#define ecb_expect(expr,value) (expr)
768	#define ecb_prefetch(addr,rw,locality)	848	#define ecb_prefetch(addr,rw,locality)
769	#endif	849	#endif
770		850
771	/* no emulation for ecb_decltype */	851	/* no emulation for ecb_decltype */
772	#if ECB_GCC_VERSION(4,5)	852	#if ECB_CPP11
		853	// older implementations might have problems with decltype(x)::type, work around it
		854	template<class T> struct ecb_decltype_t { typedef T type; };
773	#define ecb_decltype(x) __decltype(x)	855	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
774	#elif ECB_GCC_VERSION(3,0)	856	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
775	#define ecb_decltype(x) __typeof(x)	857	#define ecb_decltype(x) __typeof__ (x)
776	#endif	858	#endif
777		859
		860	#if _MSC_VER >= 1300
		861	#define ecb_deprecated __declspec (deprecated)
		862	#else
		863	#define ecb_deprecated ecb_attribute ((__deprecated__))
		864	#endif
		865
		866	#if _MSC_VER >= 1500
		867	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		868	#elif ECB_GCC_VERSION(4,5)
		869	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		870	#else
		871	#define ecb_deprecated_message(msg) ecb_deprecated
		872	#endif
		873
		874	#if _MSC_VER >= 1400
		875	#define ecb_noinline __declspec (noinline)
		876	#else
778	#define ecb_noinline ecb_attribute ((__noinline__))	877	#define ecb_noinline ecb_attribute ((__noinline__))
		878	#endif
		879
779	#define ecb_unused ecb_attribute ((__unused__))	880	#define ecb_unused ecb_attribute ((__unused__))
780	#define ecb_const ecb_attribute ((__const__))	881	#define ecb_const ecb_attribute ((__const__))
781	#define ecb_pure ecb_attribute ((__pure__))	882	#define ecb_pure ecb_attribute ((__pure__))
782		883
783	#if ECB_C11	884	#if ECB_C11 || __IBMC_NORETURN
		885	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
784	#define ecb_noreturn _Noreturn	886	#define ecb_noreturn _Noreturn
		887	#elif ECB_CPP11
		888	#define ecb_noreturn [[noreturn]]
		889	#elif _MSC_VER >= 1200
		890	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		891	#define ecb_noreturn __declspec (noreturn)
785	#else	892	#else
786	#define ecb_noreturn ecb_attribute ((__noreturn__))	893	#define ecb_noreturn ecb_attribute ((__noreturn__))
787	#endif	894	#endif
788		895
789	#if ECB_GCC_VERSION(4,3)	896	#if ECB_GCC_VERSION(4,3)
…		…
804	/* for compatibility to the rest of the world */	911	/* for compatibility to the rest of the world */
805	#define ecb_likely(expr) ecb_expect_true (expr)	912	#define ecb_likely(expr) ecb_expect_true (expr)
806	#define ecb_unlikely(expr) ecb_expect_false (expr)	913	#define ecb_unlikely(expr) ecb_expect_false (expr)
807		914
808	/* count trailing zero bits and count # of one bits */	915	/* count trailing zero bits and count # of one bits */
809	#if ECB_GCC_VERSION(3,4)	916	#if ECB_GCC_VERSION(3,4) \
		917	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		918	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		919	&& ECB_CLANG_BUILTIN(__builtin_popcount))
810	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	920	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
811	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	921	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
812	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	922	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
813	#define ecb_ctz32(x) __builtin_ctz (x)	923	#define ecb_ctz32(x) __builtin_ctz (x)
814	#define ecb_ctz64(x) __builtin_ctzll (x)	924	#define ecb_ctz64(x) __builtin_ctzll (x)
815	#define ecb_popcount32(x) __builtin_popcount (x)	925	#define ecb_popcount32(x) __builtin_popcount (x)
816	/* no popcountll */	926	/* no popcountll */
817	#else	927	#else
818	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	928	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
819	ecb_function_ int	929	ecb_function_ ecb_const int
820	ecb_ctz32 (uint32_t x)	930	ecb_ctz32 (uint32_t x)
821	{	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
822	int r = 0;	937	int r = 0;
823		938
824	x &= ~x + 1; /* this isolates the lowest bit */	939	x &= ~x + 1; /* this isolates the lowest bit */
825		940
826	#if ECB_branchless_on_i386	941	#if ECB_branchless_on_i386
…		…
836	if (x & 0xff00ff00) r += 8;	951	if (x & 0xff00ff00) r += 8;
837	if (x & 0xffff0000) r += 16;	952	if (x & 0xffff0000) r += 16;
838	#endif	953	#endif
839		954
840	return r;	955	return r;
		956	#endif
841	}	957	}
842		958
843	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	959	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
844	ecb_function_ int	960	ecb_function_ ecb_const int
845	ecb_ctz64 (uint64_t x)	961	ecb_ctz64 (uint64_t x)
846	{	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
847	int shift = x & 0xffffffffU ? 0 : 32;	968	int shift = x & 0xffffffff ? 0 : 32;
848	return ecb_ctz32 (x >> shift) + shift;	969	return ecb_ctz32 (x >> shift) + shift;
		970	#endif
849	}	971	}
850		972
851	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	973	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
852	ecb_function_ int	974	ecb_function_ ecb_const int
853	ecb_popcount32 (uint32_t x)	975	ecb_popcount32 (uint32_t x)
854	{	976	{
855	x -= (x >> 1) & 0x55555555;	977	x -= (x >> 1) & 0x55555555;
856	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	978	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
857	x = ((x >> 4) + x) & 0x0f0f0f0f;	979	x = ((x >> 4) + x) & 0x0f0f0f0f;
858	x *= 0x01010101;	980	x *= 0x01010101;
859		981
860	return x >> 24;	982	return x >> 24;
861	}	983	}
862		984
863	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	985	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
864	ecb_function_ int ecb_ld32 (uint32_t x)	986	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
865	{	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
866	int r = 0;	993	int r = 0;
867		994
868	if (x >> 16) { x >>= 16; r += 16; }	995	if (x >> 16) { x >>= 16; r += 16; }
869	if (x >> 8) { x >>= 8; r += 8; }	996	if (x >> 8) { x >>= 8; r += 8; }
870	if (x >> 4) { x >>= 4; r += 4; }	997	if (x >> 4) { x >>= 4; r += 4; }
871	if (x >> 2) { x >>= 2; r += 2; }	998	if (x >> 2) { x >>= 2; r += 2; }
872	if (x >> 1) { r += 1; }	999	if (x >> 1) { r += 1; }
873		1000
874	return r;	1001	return r;
		1002	#endif
875	}	1003	}
876		1004
877	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1005	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
878	ecb_function_ int ecb_ld64 (uint64_t x)	1006	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
879	{	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
880	int r = 0;	1013	int r = 0;
881		1014
882	if (x >> 32) { x >>= 32; r += 32; }	1015	if (x >> 32) { x >>= 32; r += 32; }
883		1016
884	return r + ecb_ld32 (x);	1017	return r + ecb_ld32 (x);
		1018	#endif
885	}	1019	}
886	#endif	1020	#endif
887		1021
888	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	1022	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
889	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	1023	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	1024	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
891	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	1025	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892		1026
893	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1027	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
894	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1028	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
895	{	1029	{
896	return ( (x * 0x0802U & 0x22110U)	1030	return ( (x * 0x0802U & 0x22110U)
897	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1031	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
898	}	1032	}
899		1033
900	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1034	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
901	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1035	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
902	{	1036	{
903	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1037	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
904	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1038	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
905	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1039	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
906	x = ( x >> 8 ) | ( x << 8);	1040	x = ( x >> 8 ) | ( x << 8);
907		1041
908	return x;	1042	return x;
909	}	1043	}
910		1044
911	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1045	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
912	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1046	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
913	{	1047	{
914	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1048	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
915	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1049	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
916	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1050	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
917	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1051	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
920	return x;	1054	return x;
921	}	1055	}
922		1056
923	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1057	/* popcount64 is only available on 64 bit cpus as gcc builtin */
924	/* so for this version we are lazy */	1058	/* so for this version we are lazy */
925	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1059	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
926	ecb_function_ int	1060	ecb_function_ ecb_const int
927	ecb_popcount64 (uint64_t x)	1061	ecb_popcount64 (uint64_t x)
928	{	1062	{
929	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1063	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
930	}	1064	}
931		1065
932	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1066	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
933	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1067	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
934	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1068	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
935	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1069	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
936	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1070	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
937	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1071	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
938	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1072	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
939	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1073	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
940		1074
941	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1075	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
942	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }	1076	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
943	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }	1077	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
944	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }	1078	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
945	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1079	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
946	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1080	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
947	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1081	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
948	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1082	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
949		1083
950	#if ECB_GCC_VERSION(4,3)	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
951	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1088	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1089	#endif
952	#define ecb_bswap32(x) __builtin_bswap32 (x)	1090	#define ecb_bswap32(x) __builtin_bswap32 (x)
953	#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)))
954	#else	1097	#else
955	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1098	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
956	ecb_function_ uint16_t	1099	ecb_function_ ecb_const uint16_t
957	ecb_bswap16 (uint16_t x)	1100	ecb_bswap16 (uint16_t x)
958	{	1101	{
959	return ecb_rotl16 (x, 8);	1102	return ecb_rotl16 (x, 8);
960	}	1103	}
961		1104
962	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1105	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
963	ecb_function_ uint32_t	1106	ecb_function_ ecb_const uint32_t
964	ecb_bswap32 (uint32_t x)	1107	ecb_bswap32 (uint32_t x)
965	{	1108	{
966	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1109	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
967	}	1110	}
968		1111
969	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1112	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
970	ecb_function_ uint64_t	1113	ecb_function_ ecb_const uint64_t
971	ecb_bswap64 (uint64_t x)	1114	ecb_bswap64 (uint64_t x)
972	{	1115	{
973	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1116	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
974	}	1117	}
975	#endif	1118	#endif
976		1119
977	#if ECB_GCC_VERSION(4,5)	1120	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
978	#define ecb_unreachable() __builtin_unreachable ()	1121	#define ecb_unreachable() __builtin_unreachable ()
979	#else	1122	#else
980	/* this seems to work fine, but gcc always emits a warning for it :/ */	1123	/* this seems to work fine, but gcc always emits a warning for it :/ */
981	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1124	ecb_inline ecb_noreturn void ecb_unreachable (void);
982	ecb_inline void ecb_unreachable (void) { }	1125	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
983	#endif	1126	#endif
984		1127
985	/* try to tell the compiler that some condition is definitely true */	1128	/* try to tell the compiler that some condition is definitely true */
986	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1129	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
987		1130
988	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1131	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
989	ecb_inline unsigned char	1132	ecb_inline ecb_const uint32_t
990	ecb_byteorder_helper (void)	1133	ecb_byteorder_helper (void)
991	{	1134	{
992	/* the union code still generates code under pressure in gcc, */	1135	/* the union code still generates code under pressure in gcc, */
993	/* but less than using pointers, and always seems to */	1136	/* but less than using pointers, and always seems to */
994	/* successfully return a constant. */	1137	/* successfully return a constant. */
995	/* the reason why we have this horrible preprocessor mess */	1138	/* the reason why we have this horrible preprocessor mess */
996	/* 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 */
997	/* or when using a recent enough gcc version (>= 4.6) */	1140	/* or when using a recent enough gcc version (>= 4.6) */
998	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999	return 0x44;
1000	#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
1001	return 0x44;	1144	return 0x44332211;
1002	#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
1003	return 0x11;	1148	return 0x11223344;
1004	#else	1149	#else
1005	union	1150	union
1006	{	1151	{
		1152	uint8_t c[4];
1007	uint32_t i;	1153	uint32_t u;
1008	uint8_t c;
1009	} u = { 0x11223344 };	1154	} u = { 0x11, 0x22, 0x33, 0x44 };
1010	return u.c;	1155	return u.u;
1011	#endif	1156	#endif
1012	}	1157	}
1013		1158
1014	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1159	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1015	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1160	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1016	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1161	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1017	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1162	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1018		1163
1019	#if ECB_GCC_VERSION(3,0) || ECB_C99	1164	#if ECB_GCC_VERSION(3,0) || ECB_C99
1020	#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))
1021	#else	1166	#else
1022	#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)))
1023	#endif	1168	#endif
1024		1169
1025	#if __cplusplus	1170	#if ECB_CPP
1026	template<typename T>	1171	template<typename T>
1027	static inline T ecb_div_rd (T val, T div)	1172	static inline T ecb_div_rd (T val, T div)
1028	{	1173	{
1029	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1174	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1030	}	1175	}
…		…
1047	}	1192	}
1048	#else	1193	#else
1049	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1194	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1050	#endif	1195	#endif
1051		1196
		1197	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1198	ecb_function_ ecb_const uint32_t
		1199	ecb_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
		1229	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1230	ecb_function_ ecb_const uint16_t
		1231	ecb_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	}
		1292
1052	/*******************************************************************************/	1293	/*******************************************************************************/
1053	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1294	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054		1295
1055	/* basically, everything uses "ieee pure-endian" floating point numbers */	1296	/* basically, everything uses "ieee pure-endian" floating point numbers */
1056	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1297	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057	#if 0 \	1298	#if 0 \
1058	|| __i386 || __i386__ \	1299	|| __i386 || __i386__ \
1059	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1300	|| ECB_GCC_AMD64 \
1060	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1301	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061	|| defined __arm__ && defined __ARM_EABI__ \
1062	|| defined __s390__ || defined __s390x__ \	1302	|| defined __s390__ || defined __s390x__ \
1063	|| defined __mips__ \	1303	|| defined __mips__ \
1064	|| defined __alpha__ \	1304	|| defined __alpha__ \
1065	|| defined __hppa__ \	1305	|| defined __hppa__ \
1066	|| defined __ia64__ \	1306	|| defined __ia64__ \
1067	|| defined __m68k__ \	1307	|| defined __m68k__ \
1068	|| defined __m88k__ \	1308	|| defined __m88k__ \
1069	|| defined __sh__ \	1309	|| defined __sh__ \
1070	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64	1310	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1311	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1312	|| defined __aarch64__
1071	#define ECB_STDFP 1	1313	#define ECB_STDFP 1
1072	#include <string.h> /* for memcpy */	1314	#include <string.h> /* for memcpy */
1073	#else	1315	#else
1074	#define ECB_STDFP 0	1316	#define ECB_STDFP 0
1075	#endif	1317	#endif
…		…
1089	#define ECB_NAN NAN	1331	#define ECB_NAN NAN
1090	#else	1332	#else
1091	#define ECB_NAN ECB_INFINITY	1333	#define ECB_NAN ECB_INFINITY
1092	#endif	1334	#endif
1093		1335
1094	/* converts an ieee half/binary16 to a float */	1336	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1095	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;	1337	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
1096	ecb_function_ float	1338	#define ecb_frexpf(x,e) frexpf ((x), (e))
1097	ecb_binary16_to_float (uint16_t x)	1339	#else
1098	{	1340	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1099	int e = (x >> 10) & 0x1f;	1341	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1100	int m = x & 0x3ff;	1342	#endif
1101	float r;
1102
1103	if (!e ) r = ldexpf (m , -24);
1104	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105	else if (m ) r = ECB_NAN;
1106	else r = ECB_INFINITY;
1107
1108	return x & 0x8000 ? -r : r;
1109	}
1110		1343
1111	/* convert a float to ieee single/binary32 */	1344	/* convert a float to ieee single/binary32 */
1112	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1345	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1113	ecb_function_ uint32_t	1346	ecb_function_ ecb_const uint32_t
1114	ecb_float_to_binary32 (float x)	1347	ecb_float_to_binary32 (float x)
1115	{	1348	{
1116	uint32_t r;	1349	uint32_t r;
1117		1350
1118	#if ECB_STDFP	1351	#if ECB_STDFP
…		…
1125	if (x == 0e0f ) return 0x00000000U;	1358	if (x == 0e0f ) return 0x00000000U;
1126	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1359	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1360	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128	if (x != x ) return 0x7fbfffffU;	1361	if (x != x ) return 0x7fbfffffU;
1129		1362
1130	m = frexpf (x, &e) * 0x1000000U;	1363	m = ecb_frexpf (x, &e) * 0x1000000U;
1131		1364
1132	r = m & 0x80000000U;	1365	r = m & 0x80000000U;
1133		1366
1134	if (r)	1367	if (r)
1135	m = -m;	1368	m = -m;
…		…
1147		1380
1148	return r;	1381	return r;
1149	}	1382	}
1150		1383
1151	/* converts an ieee single/binary32 to a float */	1384	/* converts an ieee single/binary32 to a float */
1152	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1385	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1153	ecb_function_ float	1386	ecb_function_ ecb_const float
1154	ecb_binary32_to_float (uint32_t x)	1387	ecb_binary32_to_float (uint32_t x)
1155	{	1388	{
1156	float r;	1389	float r;
1157		1390
1158	#if ECB_STDFP	1391	#if ECB_STDFP
…		…
1168	x |= 0x800000U;	1401	x |= 0x800000U;
1169	else	1402	else
1170	e = 1;	1403	e = 1;
1171		1404
1172	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */	1405	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1406	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1174		1407
1175	r = neg ? -r : r;	1408	r = neg ? -r : r;
1176	#endif	1409	#endif
1177		1410
1178	return r;	1411	return r;
1179	}	1412	}
1180		1413
1181	/* convert a double to ieee double/binary64 */	1414	/* convert a double to ieee double/binary64 */
1182	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1415	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1183	ecb_function_ uint64_t	1416	ecb_function_ ecb_const uint64_t
1184	ecb_double_to_binary64 (double x)	1417	ecb_double_to_binary64 (double x)
1185	{	1418	{
1186	uint64_t r;	1419	uint64_t r;
1187		1420
1188	#if ECB_STDFP	1421	#if ECB_STDFP
…		…
1217		1450
1218	return r;	1451	return r;
1219	}	1452	}
1220		1453
1221	/* converts an ieee double/binary64 to a double */	1454	/* converts an ieee double/binary64 to a double */
1222	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1455	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1223	ecb_function_ double	1456	ecb_function_ ecb_const double
1224	ecb_binary64_to_double (uint64_t x)	1457	ecb_binary64_to_double (uint64_t x)
1225	{	1458	{
1226	double r;	1459	double r;
1227		1460
1228	#if ECB_STDFP	1461	#if ECB_STDFP
…		…
1244		1477
1245	r = neg ? -r : r;	1478	r = neg ? -r : r;
1246	#endif	1479	#endif
1247		1480
1248	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));
1249	}	1498	}
1250		1499
1251	#endif	1500	#endif
1252		1501
1253	#endif	1502	#endif
…		…
1278	#define inline_size ecb_inline	1527	#define inline_size ecb_inline
1279		1528
1280	#if EV_FEATURE_CODE	1529	#if EV_FEATURE_CODE
1281	# define inline_speed ecb_inline	1530	# define inline_speed ecb_inline
1282	#else	1531	#else
1283	# define inline_speed static noinline	1532	# define inline_speed noinline static
1284	#endif	1533	#endif
1285		1534
1286	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1535	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1287		1536
1288	#if EV_MINPRI == EV_MAXPRI	1537	#if EV_MINPRI == EV_MAXPRI
…		…
1335	#else	1584	#else
1336		1585
1337	#include <float.h>	1586	#include <float.h>
1338		1587
1339	/* a floor() replacement function, should be independent of ev_tstamp type */	1588	/* a floor() replacement function, should be independent of ev_tstamp type */
		1589	noinline
1340	static ev_tstamp noinline	1590	static ev_tstamp
1341	ev_floor (ev_tstamp v)	1591	ev_floor (ev_tstamp v)
1342	{	1592	{
1343	/* the choice of shift factor is not terribly important */	1593	/* the choice of shift factor is not terribly important */
1344	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1594	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1345	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1595	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
…		…
1377		1627
1378	#ifdef __linux	1628	#ifdef __linux
1379	# include <sys/utsname.h>	1629	# include <sys/utsname.h>
1380	#endif	1630	#endif
1381		1631
1382	static unsigned int noinline ecb_cold	1632	noinline ecb_cold
		1633	static unsigned int
1383	ev_linux_version (void)	1634	ev_linux_version (void)
1384	{	1635	{
1385	#ifdef __linux	1636	#ifdef __linux
1386	unsigned int v = 0;	1637	unsigned int v = 0;
1387	struct utsname buf;	1638	struct utsname buf;
…		…
1416	}	1667	}
1417		1668
1418	/*****************************************************************************/	1669	/*****************************************************************************/
1419		1670
1420	#if EV_AVOID_STDIO	1671	#if EV_AVOID_STDIO
1421	static void noinline ecb_cold	1672	noinline ecb_cold
		1673	static void
1422	ev_printerr (const char *msg)	1674	ev_printerr (const char *msg)
1423	{	1675	{
1424	write (STDERR_FILENO, msg, strlen (msg));	1676	write (STDERR_FILENO, msg, strlen (msg));
1425	}	1677	}
1426	#endif	1678	#endif
1427		1679
1428	static void (*syserr_cb)(const char *msg) EV_THROW;	1680	static void (*syserr_cb)(const char *msg) EV_THROW;
1429		1681
1430	void ecb_cold	1682	ecb_cold
		1683	void
1431	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1684	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1432	{	1685	{
1433	syserr_cb = cb;	1686	syserr_cb = cb;
1434	}	1687	}
1435		1688
1436	static void noinline ecb_cold	1689	noinline ecb_cold
		1690	static void
1437	ev_syserr (const char *msg)	1691	ev_syserr (const char *msg)
1438	{	1692	{
1439	if (!msg)	1693	if (!msg)
1440	msg = "(libev) system error";	1694	msg = "(libev) system error";
1441		1695
…		…
1472	return 0;	1726	return 0;
1473	}	1727	}
1474		1728
1475	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1729	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1476		1730
1477	void ecb_cold	1731	ecb_cold
		1732	void
1478	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	1733	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1479	{	1734	{
1480	alloc = cb;	1735	alloc = cb;
1481	}	1736	}
1482		1737
…		…
1691	}	1946	}
1692		1947
1693	return ncur;	1948	return ncur;
1694	}	1949	}
1695		1950
1696	static void * noinline ecb_cold	1951	noinline ecb_cold
		1952	static void *
1697	array_realloc (int elem, void *base, int *cur, int cnt)	1953	array_realloc (int elem, void *base, int *cur, int cnt)
1698	{	1954	{
1699	*cur = array_nextsize (elem, *cur, cnt);	1955	*cur = array_nextsize (elem, *cur, cnt);
1700	return ev_realloc (base, elem * *cur);	1956	return ev_realloc (base, elem * *cur);
1701	}	1957	}
…		…
1704	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1960	memset ((void *)(base), 0, sizeof (*(base)) * (count))
1705		1961
1706	#define array_needsize(type,base,cur,cnt,init) \	1962	#define array_needsize(type,base,cur,cnt,init) \
1707	if (expect_false ((cnt) > (cur))) \	1963	if (expect_false ((cnt) > (cur))) \
1708	{ \	1964	{ \
1709	int ecb_unused ocur_ = (cur); \	1965	ecb_unused int ocur_ = (cur); \
1710	(base) = (type *)array_realloc \	1966	(base) = (type *)array_realloc \
1711	(sizeof (type), (base), &(cur), (cnt)); \	1967	(sizeof (type), (base), &(cur), (cnt)); \
1712	init ((base) + (ocur_), (cur) - ocur_); \	1968	init ((base) + (ocur_), (cur) - ocur_); \
1713	}	1969	}
1714		1970
…		…
1726	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
1727		1983
1728	/*****************************************************************************/	1984	/*****************************************************************************/
1729		1985
1730	/* dummy callback for pending events */	1986	/* dummy callback for pending events */
1731	static void noinline	1987	noinline
		1988	static void
1732	pendingcb (EV_P_ ev_prepare *w, int revents)	1989	pendingcb (EV_P_ ev_prepare *w, int revents)
1733	{	1990	{
1734	}	1991	}
1735		1992
1736	void noinline	1993	noinline
		1994	void
1737	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	1995	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1738	{	1996	{
1739	W w_ = (W)w;	1997	W w_ = (W)w;
1740	int pri = ABSPRI (w_);	1998	int pri = ABSPRI (w_);
1741		1999
…		…
1871		2129
1872	fdchangecnt = 0;	2130	fdchangecnt = 0;
1873	}	2131	}
1874		2132
1875	/* something about the given fd changed */	2133	/* something about the given fd changed */
1876	inline_size void	2134	inline_size
		2135	void
1877	fd_change (EV_P_ int fd, int flags)	2136	fd_change (EV_P_ int fd, int flags)
1878	{	2137	{
1879	unsigned char reify = anfds [fd].reify;	2138	unsigned char reify = anfds [fd].reify;
1880	anfds [fd].reify |= flags;	2139	anfds [fd].reify |= flags;
1881		2140
…		…
1886	fdchanges [fdchangecnt - 1] = fd;	2145	fdchanges [fdchangecnt - 1] = fd;
1887	}	2146	}
1888	}	2147	}
1889		2148
1890	/* 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 */
1891	inline_speed void ecb_cold	2150	inline_speed ecb_cold void
1892	fd_kill (EV_P_ int fd)	2151	fd_kill (EV_P_ int fd)
1893	{	2152	{
1894	ev_io *w;	2153	ev_io *w;
1895		2154
1896	while ((w = (ev_io *)anfds [fd].head))	2155	while ((w = (ev_io *)anfds [fd].head))
…		…
1899	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);
1900	}	2159	}
1901	}	2160	}
1902		2161
1903	/* check whether the given fd is actually valid, for error recovery */	2162	/* check whether the given fd is actually valid, for error recovery */
1904	inline_size int ecb_cold	2163	inline_size ecb_cold int
1905	fd_valid (int fd)	2164	fd_valid (int fd)
1906	{	2165	{
1907	#ifdef _WIN32	2166	#ifdef _WIN32
1908	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2167	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1909	#else	2168	#else
1910	return fcntl (fd, F_GETFD) != -1;	2169	return fcntl (fd, F_GETFD) != -1;
1911	#endif	2170	#endif
1912	}	2171	}
1913		2172
1914	/* called on EBADF to verify fds */	2173	/* called on EBADF to verify fds */
1915	static void noinline ecb_cold	2174	noinline ecb_cold
		2175	static void
1916	fd_ebadf (EV_P)	2176	fd_ebadf (EV_P)
1917	{	2177	{
1918	int fd;	2178	int fd;
1919		2179
1920	for (fd = 0; fd < anfdmax; ++fd)	2180	for (fd = 0; fd < anfdmax; ++fd)
…		…
1922	if (!fd_valid (fd) && errno == EBADF)	2182	if (!fd_valid (fd) && errno == EBADF)
1923	fd_kill (EV_A_ fd);	2183	fd_kill (EV_A_ fd);
1924	}	2184	}
1925		2185
1926	/* 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 */
1927	static void noinline ecb_cold	2187	noinline ecb_cold
		2188	static void
1928	fd_enomem (EV_P)	2189	fd_enomem (EV_P)
1929	{	2190	{
1930	int fd;	2191	int fd;
1931		2192
1932	for (fd = anfdmax; fd--; )	2193	for (fd = anfdmax; fd--; )
…		…
1936	break;	2197	break;
1937	}	2198	}
1938	}	2199	}
1939		2200
1940	/* 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 */
1941	static void noinline	2202	noinline
		2203	static void
1942	fd_rearm_all (EV_P)	2204	fd_rearm_all (EV_P)
1943	{	2205	{
1944	int fd;	2206	int fd;
1945		2207
1946	for (fd = 0; fd < anfdmax; ++fd)	2208	for (fd = 0; fd < anfdmax; ++fd)
…		…
2127		2389
2128	/*****************************************************************************/	2390	/*****************************************************************************/
2129		2391
2130	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2392	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2131		2393
2132	static void noinline ecb_cold	2394	noinline ecb_cold
		2395	static void
2133	evpipe_init (EV_P)	2396	evpipe_init (EV_P)
2134	{	2397	{
2135	if (!ev_is_active (&pipe_w))	2398	if (!ev_is_active (&pipe_w))
2136	{	2399	{
2137	int fds [2];	2400	int fds [2];
…		…
2315	#endif	2578	#endif
2316		2579
2317	ev_feed_signal (signum);	2580	ev_feed_signal (signum);
2318	}	2581	}
2319		2582
2320	void noinline	2583	noinline
		2584	void
2321	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2585	ev_feed_signal_event (EV_P_ int signum) EV_THROW
2322	{	2586	{
2323	WL w;	2587	WL w;
2324		2588
2325	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2589	if (expect_false (signum <= 0 || signum >= EV_NSIG))
…		…
2442	#endif	2706	#endif
2443	#if EV_USE_SELECT	2707	#if EV_USE_SELECT
2444	# include "ev_select.c"	2708	# include "ev_select.c"
2445	#endif	2709	#endif
2446		2710
2447	int ecb_cold	2711	ecb_cold int
2448	ev_version_major (void) EV_THROW	2712	ev_version_major (void) EV_THROW
2449	{	2713	{
2450	return EV_VERSION_MAJOR;	2714	return EV_VERSION_MAJOR;
2451	}	2715	}
2452		2716
2453	int ecb_cold	2717	ecb_cold int
2454	ev_version_minor (void) EV_THROW	2718	ev_version_minor (void) EV_THROW
2455	{	2719	{
2456	return EV_VERSION_MINOR;	2720	return EV_VERSION_MINOR;
2457	}	2721	}
2458		2722
2459	/* 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 */
2460	int inline_size ecb_cold	2724	inline_size ecb_cold int
2461	enable_secure (void)	2725	enable_secure (void)
2462	{	2726	{
2463	#ifdef _WIN32	2727	#ifdef _WIN32
2464	return 0;	2728	return 0;
2465	#else	2729	#else
2466	return getuid () != geteuid ()	2730	return getuid () != geteuid ()
2467	|| getgid () != getegid ();	2731	|| getgid () != getegid ();
2468	#endif	2732	#endif
2469	}	2733	}
2470		2734
2471	unsigned int ecb_cold	2735	ecb_cold
		2736	unsigned int
2472	ev_supported_backends (void) EV_THROW	2737	ev_supported_backends (void) EV_THROW
2473	{	2738	{
2474	unsigned int flags = 0;	2739	unsigned int flags = 0;
2475		2740
2476	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2741	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
…		…
2480	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2745	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2481		2746
2482	return flags;	2747	return flags;
2483	}	2748	}
2484		2749
2485	unsigned int ecb_cold	2750	ecb_cold
		2751	unsigned int
2486	ev_recommended_backends (void) EV_THROW	2752	ev_recommended_backends (void) EV_THROW
2487	{	2753	{
2488	unsigned int flags = ev_supported_backends ();	2754	unsigned int flags = ev_supported_backends ();
2489		2755
2490	#ifndef __NetBSD__	2756	#ifndef __NetBSD__
…		…
2502	#endif	2768	#endif
2503		2769
2504	return flags;	2770	return flags;
2505	}	2771	}
2506		2772
2507	unsigned int ecb_cold	2773	ecb_cold
		2774	unsigned int
2508	ev_embeddable_backends (void) EV_THROW	2775	ev_embeddable_backends (void) EV_THROW
2509	{	2776	{
2510	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2777	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2511		2778
2512	/* 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 */
…		…
2564	{	2831	{
2565	invoke_cb = invoke_pending_cb;	2832	invoke_cb = invoke_pending_cb;
2566	}	2833	}
2567		2834
2568	void	2835	void
2569	ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW	2836	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
2570	{	2837	{
2571	release_cb = release;	2838	release_cb = release;
2572	acquire_cb = acquire;	2839	acquire_cb = acquire;
2573	}	2840	}
2574	#endif	2841	#endif
2575		2842
2576	/* initialise a loop structure, must be zero-initialised */	2843	/* initialise a loop structure, must be zero-initialised */
2577	static void noinline ecb_cold	2844	noinline ecb_cold
		2845	static void
2578	loop_init (EV_P_ unsigned int flags) EV_THROW	2846	loop_init (EV_P_ unsigned int flags) EV_THROW
2579	{	2847	{
2580	if (!backend)	2848	if (!backend)
2581	{	2849	{
2582	origflags = flags;	2850	origflags = flags;
…		…
2669	#endif	2937	#endif
2670	}	2938	}
2671	}	2939	}
2672		2940
2673	/* free up a loop structure */	2941	/* free up a loop structure */
2674	void ecb_cold	2942	ecb_cold
		2943	void
2675	ev_loop_destroy (EV_P)	2944	ev_loop_destroy (EV_P)
2676	{	2945	{
2677	int i;	2946	int i;
2678		2947
2679	#if EV_MULTIPLICITY	2948	#if EV_MULTIPLICITY
…		…
2800	#if EV_USE_INOTIFY	3069	#if EV_USE_INOTIFY
2801	infy_fork (EV_A);	3070	infy_fork (EV_A);
2802	#endif	3071	#endif
2803		3072
2804	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3073	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2805	if (ev_is_active (&pipe_w))	3074	if (ev_is_active (&pipe_w) && postfork != 2)
2806	{	3075	{
2807	/* 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 */
2808		3077
2809	ev_ref (EV_A);	3078	ev_ref (EV_A);
2810	ev_io_stop (EV_A_ &pipe_w);	3079	ev_io_stop (EV_A_ &pipe_w);
…		…
2821	postfork = 0;	3090	postfork = 0;
2822	}	3091	}
2823		3092
2824	#if EV_MULTIPLICITY	3093	#if EV_MULTIPLICITY
2825		3094
		3095	ecb_cold
2826	struct ev_loop * ecb_cold	3096	struct ev_loop *
2827	ev_loop_new (unsigned int flags) EV_THROW	3097	ev_loop_new (unsigned int flags) EV_THROW
2828	{	3098	{
2829	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3099	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2830		3100
2831	memset (EV_A, 0, sizeof (struct ev_loop));	3101	memset (EV_A, 0, sizeof (struct ev_loop));
…		…
2839	}	3109	}
2840		3110
2841	#endif /* multiplicity */	3111	#endif /* multiplicity */
2842		3112
2843	#if EV_VERIFY	3113	#if EV_VERIFY
2844	static void noinline ecb_cold	3114	noinline ecb_cold
		3115	static void
2845	verify_watcher (EV_P_ W w)	3116	verify_watcher (EV_P_ W w)
2846	{	3117	{
2847	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));
2848		3119
2849	if (w->pending)	3120	if (w->pending)
2850	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));
2851	}	3122	}
2852		3123
2853	static void noinline ecb_cold	3124	noinline ecb_cold
		3125	static void
2854	verify_heap (EV_P_ ANHE *heap, int N)	3126	verify_heap (EV_P_ ANHE *heap, int N)
2855	{	3127	{
2856	int i;	3128	int i;
2857		3129
2858	for (i = HEAP0; i < N + HEAP0; ++i)	3130	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2863		3135
2864	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3136	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2865	}	3137	}
2866	}	3138	}
2867		3139
2868	static void noinline ecb_cold	3140	noinline ecb_cold
		3141	static void
2869	array_verify (EV_P_ W *ws, int cnt)	3142	array_verify (EV_P_ W *ws, int cnt)
2870	{	3143	{
2871	while (cnt--)	3144	while (cnt--)
2872	{	3145	{
2873	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3146	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2962	#endif	3235	#endif
2963	}	3236	}
2964	#endif	3237	#endif
2965		3238
2966	#if EV_MULTIPLICITY	3239	#if EV_MULTIPLICITY
		3240	ecb_cold
2967	struct ev_loop * ecb_cold	3241	struct ev_loop *
2968	#else	3242	#else
2969	int	3243	int
2970	#endif	3244	#endif
2971	ev_default_loop (unsigned int flags) EV_THROW	3245	ev_default_loop (unsigned int flags) EV_THROW
2972	{	3246	{
…		…
3020	count += pendingcnt [pri];	3294	count += pendingcnt [pri];
3021		3295
3022	return count;	3296	return count;
3023	}	3297	}
3024		3298
3025	void noinline	3299	noinline
		3300	void
3026	ev_invoke_pending (EV_P)	3301	ev_invoke_pending (EV_P)
3027	{	3302	{
3028	pendingpri = NUMPRI;	3303	pendingpri = NUMPRI;
3029		3304
3030	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3305	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
…		…
3105	}	3380	}
3106	}	3381	}
3107		3382
3108	#if EV_PERIODIC_ENABLE	3383	#if EV_PERIODIC_ENABLE
3109		3384
3110	static void noinline	3385	noinline
		3386	static void
3111	periodic_recalc (EV_P_ ev_periodic *w)	3387	periodic_recalc (EV_P_ ev_periodic *w)
3112	{	3388	{
3113	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3389	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3114	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);
3115		3391
…		…
3173	}	3449	}
3174	}	3450	}
3175		3451
3176	/* simply recalculate all periodics */	3452	/* simply recalculate all periodics */
3177	/* 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? */
3178	static void noinline ecb_cold	3454	noinline ecb_cold
		3455	static void
3179	periodics_reschedule (EV_P)	3456	periodics_reschedule (EV_P)
3180	{	3457	{
3181	int i;	3458	int i;
3182		3459
3183	/* adjust periodics after time jump */	3460	/* adjust periodics after time jump */
…		…
3196	reheap (periodics, periodiccnt);	3473	reheap (periodics, periodiccnt);
3197	}	3474	}
3198	#endif	3475	#endif
3199		3476
3200	/* adjust all timers by a given offset */	3477	/* adjust all timers by a given offset */
3201	static void noinline ecb_cold	3478	noinline ecb_cold
		3479	static void
3202	timers_reschedule (EV_P_ ev_tstamp adjust)	3480	timers_reschedule (EV_P_ ev_tstamp adjust)
3203	{	3481	{
3204	int i;	3482	int i;
3205		3483
3206	for (i = 0; i < timercnt; ++i)	3484	for (i = 0; i < timercnt; ++i)
…		…
3574	w->active = 0;	3852	w->active = 0;
3575	}	3853	}
3576		3854
3577	/*****************************************************************************/	3855	/*****************************************************************************/
3578		3856
3579	void noinline	3857	noinline
		3858	void
3580	ev_io_start (EV_P_ ev_io *w) EV_THROW	3859	ev_io_start (EV_P_ ev_io *w) EV_THROW
3581	{	3860	{
3582	int fd = w->fd;	3861	int fd = w->fd;
3583		3862
3584	if (expect_false (ev_is_active (w)))	3863	if (expect_false (ev_is_active (w)))
…		…
3600	w->events &= ~EV__IOFDSET;	3879	w->events &= ~EV__IOFDSET;
3601		3880
3602	EV_FREQUENT_CHECK;	3881	EV_FREQUENT_CHECK;
3603	}	3882	}
3604		3883
3605	void noinline	3884	noinline
		3885	void
3606	ev_io_stop (EV_P_ ev_io *w) EV_THROW	3886	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3607	{	3887	{
3608	clear_pending (EV_A_ (W)w);	3888	clear_pending (EV_A_ (W)w);
3609	if (expect_false (!ev_is_active (w)))	3889	if (expect_false (!ev_is_active (w)))
3610	return;	3890	return;
…		…
3619	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	3899	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3620		3900
3621	EV_FREQUENT_CHECK;	3901	EV_FREQUENT_CHECK;
3622	}	3902	}
3623		3903
3624	void noinline	3904	noinline
		3905	void
3625	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	3906	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3626	{	3907	{
3627	if (expect_false (ev_is_active (w)))	3908	if (expect_false (ev_is_active (w)))
3628	return;	3909	return;
3629		3910
…		…
3643	EV_FREQUENT_CHECK;	3924	EV_FREQUENT_CHECK;
3644		3925
3645	/*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));*/
3646	}	3927	}
3647		3928
3648	void noinline	3929	noinline
		3930	void
3649	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	3931	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3650	{	3932	{
3651	clear_pending (EV_A_ (W)w);	3933	clear_pending (EV_A_ (W)w);
3652	if (expect_false (!ev_is_active (w)))	3934	if (expect_false (!ev_is_active (w)))
3653	return;	3935	return;
…		…
3673	ev_stop (EV_A_ (W)w);	3955	ev_stop (EV_A_ (W)w);
3674		3956
3675	EV_FREQUENT_CHECK;	3957	EV_FREQUENT_CHECK;
3676	}	3958	}
3677		3959
3678	void noinline	3960	noinline
		3961	void
3679	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	3962	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3680	{	3963	{
3681	EV_FREQUENT_CHECK;	3964	EV_FREQUENT_CHECK;
3682		3965
3683	clear_pending (EV_A_ (W)w);	3966	clear_pending (EV_A_ (W)w);
…		…
3707	{	3990	{
3708	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3991	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3709	}	3992	}
3710		3993
3711	#if EV_PERIODIC_ENABLE	3994	#if EV_PERIODIC_ENABLE
3712	void noinline	3995	noinline
		3996	void
3713	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	3997	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3714	{	3998	{
3715	if (expect_false (ev_is_active (w)))	3999	if (expect_false (ev_is_active (w)))
3716	return;	4000	return;
3717		4001
…		…
3737	EV_FREQUENT_CHECK;	4021	EV_FREQUENT_CHECK;
3738		4022
3739	/*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));*/
3740	}	4024	}
3741		4025
3742	void noinline	4026	noinline
		4027	void
3743	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4028	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3744	{	4029	{
3745	clear_pending (EV_A_ (W)w);	4030	clear_pending (EV_A_ (W)w);
3746	if (expect_false (!ev_is_active (w)))	4031	if (expect_false (!ev_is_active (w)))
3747	return;	4032	return;
…		…
3765	ev_stop (EV_A_ (W)w);	4050	ev_stop (EV_A_ (W)w);
3766		4051
3767	EV_FREQUENT_CHECK;	4052	EV_FREQUENT_CHECK;
3768	}	4053	}
3769		4054
3770	void noinline	4055	noinline
		4056	void
3771	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4057	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3772	{	4058	{
3773	/* TODO: use adjustheap and recalculation */	4059	/* TODO: use adjustheap and recalculation */
3774	ev_periodic_stop (EV_A_ w);	4060	ev_periodic_stop (EV_A_ w);
3775	ev_periodic_start (EV_A_ w);	4061	ev_periodic_start (EV_A_ w);
…		…
3780	# define SA_RESTART 0	4066	# define SA_RESTART 0
3781	#endif	4067	#endif
3782		4068
3783	#if EV_SIGNAL_ENABLE	4069	#if EV_SIGNAL_ENABLE
3784		4070
3785	void noinline	4071	noinline
		4072	void
3786	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4073	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3787	{	4074	{
3788	if (expect_false (ev_is_active (w)))	4075	if (expect_false (ev_is_active (w)))
3789	return;	4076	return;
3790		4077
…		…
3862	}	4149	}
3863		4150
3864	EV_FREQUENT_CHECK;	4151	EV_FREQUENT_CHECK;
3865	}	4152	}
3866		4153
3867	void noinline	4154	noinline
		4155	void
3868	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4156	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3869	{	4157	{
3870	clear_pending (EV_A_ (W)w);	4158	clear_pending (EV_A_ (W)w);
3871	if (expect_false (!ev_is_active (w)))	4159	if (expect_false (!ev_is_active (w)))
3872	return;	4160	return;
…		…
3948		4236
3949	#define DEF_STAT_INTERVAL 5.0074891	4237	#define DEF_STAT_INTERVAL 5.0074891
3950	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4238	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3951	#define MIN_STAT_INTERVAL 0.1074891	4239	#define MIN_STAT_INTERVAL 0.1074891
3952		4240
3953	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4241	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3954		4242
3955	#if EV_USE_INOTIFY	4243	#if EV_USE_INOTIFY
3956		4244
3957	/* 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 */
3958	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4246	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3959		4247
3960	static void noinline	4248	noinline
		4249	static void
3961	infy_add (EV_P_ ev_stat *w)	4250	infy_add (EV_P_ ev_stat *w)
3962	{	4251	{
3963	w->wd = inotify_add_watch (fs_fd, w->path,	4252	w->wd = inotify_add_watch (fs_fd, w->path,
3964	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4253	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4254	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
4029	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4318	if (ev_is_active (&w->timer)) ev_ref (EV_A);
4030	ev_timer_again (EV_A_ &w->timer);	4319	ev_timer_again (EV_A_ &w->timer);
4031	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4320	if (ev_is_active (&w->timer)) ev_unref (EV_A);
4032	}	4321	}
4033		4322
4034	static void noinline	4323	noinline
		4324	static void
4035	infy_del (EV_P_ ev_stat *w)	4325	infy_del (EV_P_ ev_stat *w)
4036	{	4326	{
4037	int slot;	4327	int slot;
4038	int wd = w->wd;	4328	int wd = w->wd;
4039		4329
…		…
4046		4336
4047	/* remove this watcher, if others are watching it, they will rearm */	4337	/* remove this watcher, if others are watching it, they will rearm */
4048	inotify_rm_watch (fs_fd, wd);	4338	inotify_rm_watch (fs_fd, wd);
4049	}	4339	}
4050		4340
4051	static void noinline	4341	noinline
		4342	static void
4052	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4343	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4053	{	4344	{
4054	if (slot < 0)	4345	if (slot < 0)
4055	/* overflow, need to check for all hash slots */	4346	/* overflow, need to check for all hash slots */
4056	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4347	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4092	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4383	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4093	ofs += sizeof (struct inotify_event) + ev->len;	4384	ofs += sizeof (struct inotify_event) + ev->len;
4094	}	4385	}
4095	}	4386	}
4096		4387
4097	inline_size void ecb_cold	4388	inline_size ecb_cold
		4389	void
4098	ev_check_2625 (EV_P)	4390	ev_check_2625 (EV_P)
4099	{	4391	{
4100	/* kernels < 2.6.25 are borked	4392	/* kernels < 2.6.25 are borked
4101	* 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
4102	*/	4394	*/
…		…
4200	w->attr.st_nlink = 0;	4492	w->attr.st_nlink = 0;
4201	else if (!w->attr.st_nlink)	4493	else if (!w->attr.st_nlink)
4202	w->attr.st_nlink = 1;	4494	w->attr.st_nlink = 1;
4203	}	4495	}
4204		4496
4205	static void noinline	4497	noinline
		4498	static void
4206	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4499	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4207	{	4500	{
4208	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4501	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4209		4502
4210	ev_statdata prev = w->attr;	4503	ev_statdata prev = w->attr;
…		…
4420	EV_FREQUENT_CHECK;	4713	EV_FREQUENT_CHECK;
4421	}	4714	}
4422	#endif	4715	#endif
4423		4716
4424	#if EV_EMBED_ENABLE	4717	#if EV_EMBED_ENABLE
4425	void noinline	4718	noinline
		4719	void
4426	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4720	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4427	{	4721	{
4428	ev_run (w->other, EVRUN_NOWAIT);	4722	ev_run (w->other, EVRUN_NOWAIT);
4429	}	4723	}
4430		4724
…		…
4727	}	5021	}
4728		5022
4729	/*****************************************************************************/	5023	/*****************************************************************************/
4730		5024
4731	#if EV_WALK_ENABLE	5025	#if EV_WALK_ENABLE
4732	void ecb_cold	5026	ecb_cold
		5027	void
4733	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5028	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4734	{	5029	{
4735	int i, j;	5030	int i, j;
4736	ev_watcher_list *wl, *wn;	5031	ev_watcher_list *wl, *wn;
4737		5032

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