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Comparing libev/ev.c (file contents):
Revision 1.460 by root, Tue Oct 29 12:53:38 2013 UTC vs.
Revision 1.486 by root, Thu Oct 25 03:11:04 2018 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
…		…
162	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
163	# endif	163	# endif
164		164
165	#endif	165	#endif
166		166
		167	/* OS X, in its infinite idiocy, actually HARDCODES
		168	* a limit of 1024 into their select. Where people have brains,
		169	* OS X engineers apparently have a vacuum. Or maybe they were
		170	* ordered to have a vacuum, or they do anything for money.
		171	* This might help. Or not.
		172	* Note that this must be defined early, as other include files
		173	* will rely on this define as well.
		174	*/
		175	#define _DARWIN_UNLIMITED_SELECT 1
		176
167	#include <stdlib.h>	177	#include <stdlib.h>
168	#include <string.h>	178	#include <string.h>
169	#include <fcntl.h>	179	#include <fcntl.h>
170	#include <stddef.h>	180	#include <stddef.h>
171		181
…		…
208	# ifndef EV_SELECT_IS_WINSOCKET	218	# ifndef EV_SELECT_IS_WINSOCKET
209	# define EV_SELECT_IS_WINSOCKET 1	219	# define EV_SELECT_IS_WINSOCKET 1
210	# endif	220	# endif
211	# undef EV_AVOID_STDIO	221	# undef EV_AVOID_STDIO
212	#endif	222	#endif
213
214	/* OS X, in its infinite idiocy, actually HARDCODES
215	* a limit of 1024 into their select. Where people have brains,
216	* OS X engineers apparently have a vacuum. Or maybe they were
217	* ordered to have a vacuum, or they do anything for money.
218	* This might help. Or not.
219	*/
220	#define _DARWIN_UNLIMITED_SELECT 1
221		223
222	/* this block tries to deduce configuration from header-defined symbols and defaults */	224	/* this block tries to deduce configuration from header-defined symbols and defaults */
223		225
224	/* try to deduce the maximum number of signals on this platform */	226	/* try to deduce the maximum number of signals on this platform */
225	#if defined EV_NSIG	227	#if defined EV_NSIG
…		…
256	# else	258	# else
257	# define EV_USE_CLOCK_SYSCALL 0	259	# define EV_USE_CLOCK_SYSCALL 0
258	# endif	260	# endif
259	#endif	261	#endif
260		262
		263	#if !(_POSIX_TIMERS > 0)
		264	# ifndef EV_USE_MONOTONIC
		265	# define EV_USE_MONOTONIC 0
		266	# endif
		267	# ifndef EV_USE_REALTIME
		268	# define EV_USE_REALTIME 0
		269	# endif
		270	#endif
		271
261	#ifndef EV_USE_MONOTONIC	272	#ifndef EV_USE_MONOTONIC
262	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0	273	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
263	# define EV_USE_MONOTONIC EV_FEATURE_OS	274	# define EV_USE_MONOTONIC EV_FEATURE_OS
264	# else	275	# else
265	# define EV_USE_MONOTONIC 0	276	# define EV_USE_MONOTONIC 0
…		…
354		365
355	#ifndef EV_HEAP_CACHE_AT	366	#ifndef EV_HEAP_CACHE_AT
356	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	367	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
357	#endif	368	#endif
358		369
359	#ifdef ANDROID	370	#ifdef __ANDROID__
360	/* supposedly, android doesn't typedef fd_mask */	371	/* supposedly, android doesn't typedef fd_mask */
361	# undef EV_USE_SELECT	372	# undef EV_USE_SELECT
362	# define EV_USE_SELECT 0	373	# define EV_USE_SELECT 0
363	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */	374	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364	# undef EV_USE_CLOCK_SYSCALL	375	# undef EV_USE_CLOCK_SYSCALL
…		…
482	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	493	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483	/* ECB.H BEGIN */	494	/* ECB.H BEGIN */
484	/*	495	/*
485	* libecb - http://software.schmorp.de/pkg/libecb	496	* libecb - http://software.schmorp.de/pkg/libecb
486	*	497	*
487	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	498	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
488	* Copyright (©) 2011 Emanuele Giaquinta	499	* Copyright (©) 2011 Emanuele Giaquinta
489	* All rights reserved.	500	* All rights reserved.
490	*	501	*
491	* Redistribution and use in source and binary forms, with or without modifica-	502	* Redistribution and use in source and binary forms, with or without modifica-
492	* tion, are permitted provided that the following conditions are met:	503	* tion, are permitted provided that the following conditions are met:
…		…
506	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	517	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	518	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	519	* 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	520	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510	* OF THE POSSIBILITY OF SUCH DAMAGE.	521	* OF THE POSSIBILITY OF SUCH DAMAGE.
		522	*
		523	* Alternatively, the contents of this file may be used under the terms of
		524	* the GNU General Public License ("GPL") version 2 or any later version,
		525	* in which case the provisions of the GPL are applicable instead of
		526	* the above. If you wish to allow the use of your version of this file
		527	* only under the terms of the GPL and not to allow others to use your
		528	* version of this file under the BSD license, indicate your decision
		529	* by deleting the provisions above and replace them with the notice
		530	* and other provisions required by the GPL. If you do not delete the
		531	* provisions above, a recipient may use your version of this file under
		532	* either the BSD or the GPL.
511	*/	533	*/
512		534
513	#ifndef ECB_H	535	#ifndef ECB_H
514	#define ECB_H	536	#define ECB_H
515		537
516	/* 16 bits major, 16 bits minor */	538	/* 16 bits major, 16 bits minor */
517	#define ECB_VERSION 0x00010003	539	#define ECB_VERSION 0x00010005
518		540
519	#ifdef _WIN32	541	#ifdef _WIN32
520	typedef signed char int8_t;	542	typedef signed char int8_t;
521	typedef unsigned char uint8_t;	543	typedef unsigned char uint8_t;
522	typedef signed short int16_t;	544	typedef signed short int16_t;
…		…
539	typedef uint32_t uintptr_t;	561	typedef uint32_t uintptr_t;
540	typedef int32_t intptr_t;	562	typedef int32_t intptr_t;
541	#endif	563	#endif
542	#else	564	#else
543	#include <inttypes.h>	565	#include <inttypes.h>
544	#if UINTMAX_MAX > 0xffffffffU	566	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
545	#define ECB_PTRSIZE 8	567	#define ECB_PTRSIZE 8
546	#else	568	#else
547	#define ECB_PTRSIZE 4	569	#define ECB_PTRSIZE 4
548	#endif	570	#endif
549	#endif	571	#endif
550		572
		573	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
		574	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
		575
551	/* work around x32 idiocy by defining proper macros */	576	/* work around x32 idiocy by defining proper macros */
552	#if __x86_64 || _M_AMD64	577	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
553	#if _ILP32	578	#if _ILP32
554	#define ECB_AMD64_X32 1	579	#define ECB_AMD64_X32 1
555	#else	580	#else
556	#define ECB_AMD64 1	581	#define ECB_AMD64 1
557	#endif	582	#endif
…		…
562	* causing enormous grief in return for some better fake benchmark numbers.	587	* causing enormous grief in return for some better fake benchmark numbers.
563	* or so.	588	* or so.
564	* we try to detect these and simply assume they are not gcc - if they have	589	* 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.	590	* an issue with that they should have done it right in the first place.
566	*/	591	*/
567	#ifndef ECB_GCC_VERSION
568	#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__	592	#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	593	#define ECB_GCC_VERSION(major,minor) 0
570	#else	594	#else
571	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	595	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
572	#endif	596	#endif
573	#endif
574		597
575	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */	598	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
576	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	599
577	#define ECB_C11 (__STDC_VERSION__ >= 201112L)	600	#if __clang__ && defined __has_builtin
		601	#define ECB_CLANG_BUILTIN(x) __has_builtin (x)
		602	#else
		603	#define ECB_CLANG_BUILTIN(x) 0
		604	#endif
		605
		606	#if __clang__ && defined __has_extension
		607	#define ECB_CLANG_EXTENSION(x) __has_extension (x)
		608	#else
		609	#define ECB_CLANG_EXTENSION(x) 0
		610	#endif
		611
578	#define ECB_CPP (__cplusplus+0)	612	#define ECB_CPP (__cplusplus+0)
579	#define ECB_CPP11 (__cplusplus >= 201103L)	613	#define ECB_CPP11 (__cplusplus >= 201103L)
		614
		615	#if ECB_CPP
		616	#define ECB_C 0
		617	#define ECB_STDC_VERSION 0
		618	#else
		619	#define ECB_C 1
		620	#define ECB_STDC_VERSION __STDC_VERSION__
		621	#endif
		622
		623	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		624	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
580		625
581	#if ECB_CPP	626	#if ECB_CPP
582	#define ECB_EXTERN_C extern "C"	627	#define ECB_EXTERN_C extern "C"
583	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	628	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584	#define ECB_EXTERN_C_END }	629	#define ECB_EXTERN_C_END }
…		…
597	#define ECB_NO_SMP 1	642	#define ECB_NO_SMP 1
598	#endif	643	#endif
599		644
600	#if ECB_NO_SMP	645	#if ECB_NO_SMP
601	#define ECB_MEMORY_FENCE do { } while (0)	646	#define ECB_MEMORY_FENCE do { } while (0)
		647	#endif
		648
		649	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
		650	#if __xlC__ && ECB_CPP
		651	#include <builtins.h>
		652	#endif
		653
		654	#if 1400 <= _MSC_VER
		655	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
602	#endif	656	#endif
603		657
604	#ifndef ECB_MEMORY_FENCE	658	#ifndef ECB_MEMORY_FENCE
605	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	659	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
606	#if __i386 || __i386__	660	#if __i386 || __i386__
607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	662	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	663	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	664	#elif ECB_GCC_AMD64
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
612	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	666	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
613	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	667	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
614	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	668	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	669	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		670	#elif defined __ARM_ARCH_2__ \
		671	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
		672	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
		673	|| defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
		674	|| defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
		675	|| defined __ARM_ARCH_5TEJ__
		676	/* 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__ \	677	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
617	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	678	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		679	|| defined __ARM_ARCH_6T2__
618	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	680	#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__ \	681	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
620	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	682	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	683	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
622	#elif __sparc || __sparc__	684	#elif __aarch64__
		685	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
		686	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")	687	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
624	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	688	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
625	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	689	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
626	#elif defined __s390__ || defined __s390x__	690	#elif defined __s390__ || defined __s390x__
627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	691	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
…		…
648		712
649	#ifndef ECB_MEMORY_FENCE	713	#ifndef ECB_MEMORY_FENCE
650	#if ECB_GCC_VERSION(4,7)	714	#if ECB_GCC_VERSION(4,7)
651	/* see comment below (stdatomic.h) about the C11 memory model. */	715	/* see comment below (stdatomic.h) about the C11 memory model. */
652	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	716	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		717	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		718	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
653		719
654	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	720	#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.	721	/* see comment below (stdatomic.h) about the C11 memory model. */
660	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	722	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661	*/	723	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		724	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
662		725
663	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	726	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
664	#define ECB_MEMORY_FENCE __sync_synchronize ()	727	#define ECB_MEMORY_FENCE __sync_synchronize ()
		728	#elif _MSC_VER >= 1500 /* VC++ 2008 */
		729	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		730	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		731	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		732	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		733	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
665	#elif _MSC_VER >= 1400 /* VC++ 2005 */	734	#elif _MSC_VER >= 1400 /* VC++ 2005 */
666	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	735	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
667	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	736	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
668	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	737	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
669	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	738	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
689	/* any fence other than seq_cst, which isn't very efficient for us. */	758	/* 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 */	759	/* 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 */	760	/* for most usages, or gcc and clang have a bug */
692	/* I *currently* lean towards the latter, and inefficiently implement */	761	/* I *currently* lean towards the latter, and inefficiently implement */
693	/* all three of ecb's fences as a seq_cst fence */	762	/* all three of ecb's fences as a seq_cst fence */
		763	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		764	/* for all __atomic_thread_fence's except seq_cst */
694	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	765	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
695	#endif	766	#endif
696	#endif	767	#endif
697		768
698	#ifndef ECB_MEMORY_FENCE	769	#ifndef ECB_MEMORY_FENCE
…		…
721	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	792	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
722	#endif	793	#endif
723		794
724	/*****************************************************************************/	795	/*****************************************************************************/
725		796
726	#if __cplusplus	797	#if ECB_CPP
727	#define ecb_inline static inline	798	#define ecb_inline static inline
728	#elif ECB_GCC_VERSION(2,5)	799	#elif ECB_GCC_VERSION(2,5)
729	#define ecb_inline static __inline__	800	#define ecb_inline static __inline__
730	#elif ECB_C99	801	#elif ECB_C99
731	#define ecb_inline static inline	802	#define ecb_inline static inline
…		…
745		816
746	#define ECB_CONCAT_(a, b) a ## b	817	#define ECB_CONCAT_(a, b) a ## b
747	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	818	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
748	#define ECB_STRINGIFY_(a) # a	819	#define ECB_STRINGIFY_(a) # a
749	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	820	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		821	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
750		822
751	#define ecb_function_ ecb_inline	823	#define ecb_function_ ecb_inline
752		824
753	#if ECB_GCC_VERSION(3,1)	825	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
754	#define ecb_attribute(attrlist) __attribute__(attrlist)	826	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		827	#else
		828	#define ecb_attribute(attrlist)
		829	#endif
		830
		831	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
755	#define ecb_is_constant(expr) __builtin_constant_p (expr)	832	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		833	#else
		834	/* possible C11 impl for integral types
		835	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		836	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		837
		838	#define ecb_is_constant(expr) 0
		839	#endif
		840
		841	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
756	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	842	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		843	#else
		844	#define ecb_expect(expr,value) (expr)
		845	#endif
		846
		847	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
757	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	848	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
758	#else	849	#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)	850	#define ecb_prefetch(addr,rw,locality)
763	#endif	851	#endif
764		852
765	/* no emulation for ecb_decltype */	853	/* no emulation for ecb_decltype */
766	#if ECB_GCC_VERSION(4,5)	854	#if ECB_CPP11
		855	// older implementations might have problems with decltype(x)::type, work around it
		856	template<class T> struct ecb_decltype_t { typedef T type; };
767	#define ecb_decltype(x) __decltype(x)	857	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
768	#elif ECB_GCC_VERSION(3,0)	858	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
769	#define ecb_decltype(x) __typeof(x)	859	#define ecb_decltype(x) __typeof__ (x)
770	#endif	860	#endif
771		861
		862	#if _MSC_VER >= 1300
		863	#define ecb_deprecated __declspec (deprecated)
		864	#else
		865	#define ecb_deprecated ecb_attribute ((__deprecated__))
		866	#endif
		867
		868	#if _MSC_VER >= 1500
		869	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		870	#elif ECB_GCC_VERSION(4,5)
		871	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		872	#else
		873	#define ecb_deprecated_message(msg) ecb_deprecated
		874	#endif
		875
		876	#if _MSC_VER >= 1400
		877	#define ecb_noinline __declspec (noinline)
		878	#else
772	#define ecb_noinline ecb_attribute ((__noinline__))	879	#define ecb_noinline ecb_attribute ((__noinline__))
		880	#endif
		881
773	#define ecb_unused ecb_attribute ((__unused__))	882	#define ecb_unused ecb_attribute ((__unused__))
774	#define ecb_const ecb_attribute ((__const__))	883	#define ecb_const ecb_attribute ((__const__))
775	#define ecb_pure ecb_attribute ((__pure__))	884	#define ecb_pure ecb_attribute ((__pure__))
776		885
777	#if ECB_C11	886	#if ECB_C11 || __IBMC_NORETURN
		887	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
778	#define ecb_noreturn _Noreturn	888	#define ecb_noreturn _Noreturn
		889	#elif ECB_CPP11
		890	#define ecb_noreturn [[noreturn]]
		891	#elif _MSC_VER >= 1200
		892	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		893	#define ecb_noreturn __declspec (noreturn)
779	#else	894	#else
780	#define ecb_noreturn ecb_attribute ((__noreturn__))	895	#define ecb_noreturn ecb_attribute ((__noreturn__))
781	#endif	896	#endif
782		897
783	#if ECB_GCC_VERSION(4,3)	898	#if ECB_GCC_VERSION(4,3)
…		…
798	/* for compatibility to the rest of the world */	913	/* for compatibility to the rest of the world */
799	#define ecb_likely(expr) ecb_expect_true (expr)	914	#define ecb_likely(expr) ecb_expect_true (expr)
800	#define ecb_unlikely(expr) ecb_expect_false (expr)	915	#define ecb_unlikely(expr) ecb_expect_false (expr)
801		916
802	/* count trailing zero bits and count # of one bits */	917	/* count trailing zero bits and count # of one bits */
803	#if ECB_GCC_VERSION(3,4)	918	#if ECB_GCC_VERSION(3,4) \
		919	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		920	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		921	&& ECB_CLANG_BUILTIN(__builtin_popcount))
804	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	922	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
805	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	923	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
806	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	924	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
807	#define ecb_ctz32(x) __builtin_ctz (x)	925	#define ecb_ctz32(x) __builtin_ctz (x)
808	#define ecb_ctz64(x) __builtin_ctzll (x)	926	#define ecb_ctz64(x) __builtin_ctzll (x)
809	#define ecb_popcount32(x) __builtin_popcount (x)	927	#define ecb_popcount32(x) __builtin_popcount (x)
810	/* no popcountll */	928	/* no popcountll */
811	#else	929	#else
812	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	930	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
813	ecb_function_ int	931	ecb_function_ ecb_const int
814	ecb_ctz32 (uint32_t x)	932	ecb_ctz32 (uint32_t x)
815	{	933	{
		934	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		935	unsigned long r;
		936	_BitScanForward (&r, x);
		937	return (int)r;
		938	#else
816	int r = 0;	939	int r = 0;
817		940
818	x &= ~x + 1; /* this isolates the lowest bit */	941	x &= ~x + 1; /* this isolates the lowest bit */
819		942
820	#if ECB_branchless_on_i386	943	#if ECB_branchless_on_i386
…		…
830	if (x & 0xff00ff00) r += 8;	953	if (x & 0xff00ff00) r += 8;
831	if (x & 0xffff0000) r += 16;	954	if (x & 0xffff0000) r += 16;
832	#endif	955	#endif
833		956
834	return r;	957	return r;
		958	#endif
835	}	959	}
836		960
837	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	961	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
838	ecb_function_ int	962	ecb_function_ ecb_const int
839	ecb_ctz64 (uint64_t x)	963	ecb_ctz64 (uint64_t x)
840	{	964	{
		965	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		966	unsigned long r;
		967	_BitScanForward64 (&r, x);
		968	return (int)r;
		969	#else
841	int shift = x & 0xffffffffU ? 0 : 32;	970	int shift = x & 0xffffffff ? 0 : 32;
842	return ecb_ctz32 (x >> shift) + shift;	971	return ecb_ctz32 (x >> shift) + shift;
		972	#endif
843	}	973	}
844		974
845	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	975	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
846	ecb_function_ int	976	ecb_function_ ecb_const int
847	ecb_popcount32 (uint32_t x)	977	ecb_popcount32 (uint32_t x)
848	{	978	{
849	x -= (x >> 1) & 0x55555555;	979	x -= (x >> 1) & 0x55555555;
850	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	980	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
851	x = ((x >> 4) + x) & 0x0f0f0f0f;	981	x = ((x >> 4) + x) & 0x0f0f0f0f;
852	x *= 0x01010101;	982	x *= 0x01010101;
853		983
854	return x >> 24;	984	return x >> 24;
855	}	985	}
856		986
857	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	987	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
858	ecb_function_ int ecb_ld32 (uint32_t x)	988	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
859	{	989	{
		990	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		991	unsigned long r;
		992	_BitScanReverse (&r, x);
		993	return (int)r;
		994	#else
860	int r = 0;	995	int r = 0;
861		996
862	if (x >> 16) { x >>= 16; r += 16; }	997	if (x >> 16) { x >>= 16; r += 16; }
863	if (x >> 8) { x >>= 8; r += 8; }	998	if (x >> 8) { x >>= 8; r += 8; }
864	if (x >> 4) { x >>= 4; r += 4; }	999	if (x >> 4) { x >>= 4; r += 4; }
865	if (x >> 2) { x >>= 2; r += 2; }	1000	if (x >> 2) { x >>= 2; r += 2; }
866	if (x >> 1) { r += 1; }	1001	if (x >> 1) { r += 1; }
867		1002
868	return r;	1003	return r;
		1004	#endif
869	}	1005	}
870		1006
871	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1007	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
872	ecb_function_ int ecb_ld64 (uint64_t x)	1008	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
873	{	1009	{
		1010	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1011	unsigned long r;
		1012	_BitScanReverse64 (&r, x);
		1013	return (int)r;
		1014	#else
874	int r = 0;	1015	int r = 0;
875		1016
876	if (x >> 32) { x >>= 32; r += 32; }	1017	if (x >> 32) { x >>= 32; r += 32; }
877		1018
878	return r + ecb_ld32 (x);	1019	return r + ecb_ld32 (x);
		1020	#endif
879	}	1021	}
880	#endif	1022	#endif
881		1023
882	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	1024	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)); }	1025	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;	1026	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)); }	1027	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
886		1028
887	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1029	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
888	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1030	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
889	{	1031	{
890	return ( (x * 0x0802U & 0x22110U)	1032	return ( (x * 0x0802U & 0x22110U)
891	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1033	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
892	}	1034	}
893		1035
894	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1036	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
895	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1037	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
896	{	1038	{
897	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1039	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
898	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1040	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
899	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1041	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
900	x = ( x >> 8 ) | ( x << 8);	1042	x = ( x >> 8 ) | ( x << 8);
901		1043
902	return x;	1044	return x;
903	}	1045	}
904		1046
905	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1047	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
906	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1048	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
907	{	1049	{
908	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1050	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
909	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1051	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
910	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1052	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
911	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1053	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
914	return x;	1056	return x;
915	}	1057	}
916		1058
917	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1059	/* popcount64 is only available on 64 bit cpus as gcc builtin */
918	/* so for this version we are lazy */	1060	/* so for this version we are lazy */
919	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1061	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
920	ecb_function_ int	1062	ecb_function_ ecb_const int
921	ecb_popcount64 (uint64_t x)	1063	ecb_popcount64 (uint64_t x)
922	{	1064	{
923	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1065	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
924	}	1066	}
925		1067
926	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1068	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;	1069	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;	1070	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;	1071	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;	1072	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;	1073	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;	1074	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;	1075	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
934		1076
935	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1077	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); }	1078	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); }	1079	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); }	1080	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); }	1081	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); }	1082	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); }	1083	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); }	1084	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
943		1085
944	#if ECB_GCC_VERSION(4,3)	1086	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
		1087	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
		1088	#define ecb_bswap16(x) __builtin_bswap16 (x)
		1089	#else
945	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1090	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1091	#endif
946	#define ecb_bswap32(x) __builtin_bswap32 (x)	1092	#define ecb_bswap32(x) __builtin_bswap32 (x)
947	#define ecb_bswap64(x) __builtin_bswap64 (x)	1093	#define ecb_bswap64(x) __builtin_bswap64 (x)
		1094	#elif _MSC_VER
		1095	#include <stdlib.h>
		1096	#define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
		1097	#define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
		1098	#define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
948	#else	1099	#else
949	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1100	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
950	ecb_function_ uint16_t	1101	ecb_function_ ecb_const uint16_t
951	ecb_bswap16 (uint16_t x)	1102	ecb_bswap16 (uint16_t x)
952	{	1103	{
953	return ecb_rotl16 (x, 8);	1104	return ecb_rotl16 (x, 8);
954	}	1105	}
955		1106
956	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1107	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
957	ecb_function_ uint32_t	1108	ecb_function_ ecb_const uint32_t
958	ecb_bswap32 (uint32_t x)	1109	ecb_bswap32 (uint32_t x)
959	{	1110	{
960	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1111	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
961	}	1112	}
962		1113
963	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1114	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
964	ecb_function_ uint64_t	1115	ecb_function_ ecb_const uint64_t
965	ecb_bswap64 (uint64_t x)	1116	ecb_bswap64 (uint64_t x)
966	{	1117	{
967	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1118	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
968	}	1119	}
969	#endif	1120	#endif
970		1121
971	#if ECB_GCC_VERSION(4,5)	1122	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
972	#define ecb_unreachable() __builtin_unreachable ()	1123	#define ecb_unreachable() __builtin_unreachable ()
973	#else	1124	#else
974	/* this seems to work fine, but gcc always emits a warning for it :/ */	1125	/* this seems to work fine, but gcc always emits a warning for it :/ */
975	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1126	ecb_inline ecb_noreturn void ecb_unreachable (void);
976	ecb_inline void ecb_unreachable (void) { }	1127	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
977	#endif	1128	#endif
978		1129
979	/* try to tell the compiler that some condition is definitely true */	1130	/* try to tell the compiler that some condition is definitely true */
980	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1131	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
981		1132
982	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1133	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
983	ecb_inline unsigned char	1134	ecb_inline ecb_const uint32_t
984	ecb_byteorder_helper (void)	1135	ecb_byteorder_helper (void)
985	{	1136	{
986	/* the union code still generates code under pressure in gcc, */	1137	/* the union code still generates code under pressure in gcc, */
987	/* but less than using pointers, and always seems to */	1138	/* but less than using pointers, and always seems to */
988	/* successfully return a constant. */	1139	/* successfully return a constant. */
989	/* the reason why we have this horrible preprocessor mess */	1140	/* the reason why we have this horrible preprocessor mess */
990	/* is to avoid it in all cases, at least on common architectures */	1141	/* is to avoid it in all cases, at least on common architectures */
991	/* or when using a recent enough gcc version (>= 4.6) */	1142	/* or when using a recent enough gcc version (>= 4.6) */
992	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
993	return 0x44;
994	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__	1143	#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
		1144	|| ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
		1145	#define ECB_LITTLE_ENDIAN 1
995	return 0x44;	1146	return 0x44332211;
996	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__	1147	#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
		1148	|| ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
		1149	#define ECB_BIG_ENDIAN 1
997	return 0x11;	1150	return 0x11223344;
998	#else	1151	#else
999	union	1152	union
1000	{	1153	{
		1154	uint8_t c[4];
1001	uint32_t i;	1155	uint32_t u;
1002	uint8_t c;
1003	} u = { 0x11223344 };	1156	} u = { 0x11, 0x22, 0x33, 0x44 };
1004	return u.c;	1157	return u.u;
1005	#endif	1158	#endif
1006	}	1159	}
1007		1160
1008	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1161	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1009	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1162	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1010	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1163	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1011	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1164	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1012		1165
1013	#if ECB_GCC_VERSION(3,0) || ECB_C99	1166	#if ECB_GCC_VERSION(3,0) || ECB_C99
1014	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1167	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1015	#else	1168	#else
1016	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1169	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1017	#endif	1170	#endif
1018		1171
1019	#if __cplusplus	1172	#if ECB_CPP
1020	template<typename T>	1173	template<typename T>
1021	static inline T ecb_div_rd (T val, T div)	1174	static inline T ecb_div_rd (T val, T div)
1022	{	1175	{
1023	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1176	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1024	}	1177	}
…		…
1041	}	1194	}
1042	#else	1195	#else
1043	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1196	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1044	#endif	1197	#endif
1045		1198
		1199	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1200	ecb_function_ ecb_const uint32_t
		1201	ecb_binary16_to_binary32 (uint32_t x)
		1202	{
		1203	unsigned int s = (x & 0x8000) << (31 - 15);
		1204	int e = (x >> 10) & 0x001f;
		1205	unsigned int m = x & 0x03ff;
		1206
		1207	if (ecb_expect_false (e == 31))
		1208	/* infinity or NaN */
		1209	e = 255 - (127 - 15);
		1210	else if (ecb_expect_false (!e))
		1211	{
		1212	if (ecb_expect_true (!m))
		1213	/* zero, handled by code below by forcing e to 0 */
		1214	e = 0 - (127 - 15);
		1215	else
		1216	{
		1217	/* subnormal, renormalise */
		1218	unsigned int s = 10 - ecb_ld32 (m);
		1219
		1220	m = (m << s) & 0x3ff; /* mask implicit bit */
		1221	e -= s - 1;
		1222	}
		1223	}
		1224
		1225	/* e and m now are normalised, or zero, (or inf or nan) */
		1226	e += 127 - 15;
		1227
		1228	return s | (e << 23) | (m << (23 - 10));
		1229	}
		1230
		1231	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1232	ecb_function_ ecb_const uint16_t
		1233	ecb_binary32_to_binary16 (uint32_t x)
		1234	{
		1235	unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
		1236	unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
		1237	unsigned int m = x & 0x007fffff;
		1238
		1239	x &= 0x7fffffff;
		1240
		1241	/* if it's within range of binary16 normals, use fast path */
		1242	if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
		1243	{
		1244	/* mantissa round-to-even */
		1245	m += 0x00000fff + ((m >> (23 - 10)) & 1);
		1246
		1247	/* handle overflow */
		1248	if (ecb_expect_false (m >= 0x00800000))
		1249	{
		1250	m >>= 1;
		1251	e += 1;
		1252	}
		1253
		1254	return s | (e << 10) | (m >> (23 - 10));
		1255	}
		1256
		1257	/* handle large numbers and infinity */
		1258	if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
		1259	return s | 0x7c00;
		1260
		1261	/* handle zero, subnormals and small numbers */
		1262	if (ecb_expect_true (x < 0x38800000))
		1263	{
		1264	/* zero */
		1265	if (ecb_expect_true (!x))
		1266	return s;
		1267
		1268	/* handle subnormals */
		1269
		1270	/* too small, will be zero */
		1271	if (e < (14 - 24)) /* might not be sharp, but is good enough */
		1272	return s;
		1273
		1274	m |= 0x00800000; /* make implicit bit explicit */
		1275
		1276	/* very tricky - we need to round to the nearest e (+10) bit value */
		1277	{
		1278	unsigned int bits = 14 - e;
		1279	unsigned int half = (1 << (bits - 1)) - 1;
		1280	unsigned int even = (m >> bits) & 1;
		1281
		1282	/* if this overflows, we will end up with a normalised number */
		1283	m = (m + half + even) >> bits;
		1284	}
		1285
		1286	return s | m;
		1287	}
		1288
		1289	/* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
		1290	m >>= 13;
		1291
		1292	return s | 0x7c00 | m | !m;
		1293	}
		1294
1046	/*******************************************************************************/	1295	/*******************************************************************************/
1047	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1296	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1048		1297
1049	/* basically, everything uses "ieee pure-endian" floating point numbers */	1298	/* basically, everything uses "ieee pure-endian" floating point numbers */
1050	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1299	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1051	#if 0 \	1300	#if 0 \
1052	|| __i386 || __i386__ \	1301	|| __i386 || __i386__ \
1053	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1302	|| ECB_GCC_AMD64 \
1054	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1303	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1055	|| defined __arm__ && defined __ARM_EABI__ \
1056	|| defined __s390__ || defined __s390x__ \	1304	|| defined __s390__ || defined __s390x__ \
1057	|| defined __mips__ \	1305	|| defined __mips__ \
1058	|| defined __alpha__ \	1306	|| defined __alpha__ \
1059	|| defined __hppa__ \	1307	|| defined __hppa__ \
1060	|| defined __ia64__ \	1308	|| defined __ia64__ \
1061	|| defined __m68k__ \	1309	|| defined __m68k__ \
1062	|| defined __m88k__ \	1310	|| defined __m88k__ \
1063	|| defined __sh__ \	1311	|| defined __sh__ \
1064	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64	1312	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1313	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1314	|| defined __aarch64__
1065	#define ECB_STDFP 1	1315	#define ECB_STDFP 1
1066	#include <string.h> /* for memcpy */	1316	#include <string.h> /* for memcpy */
1067	#else	1317	#else
1068	#define ECB_STDFP 0	1318	#define ECB_STDFP 0
1069	#endif	1319	#endif
1070		1320
1071	#ifndef ECB_NO_LIBM	1321	#ifndef ECB_NO_LIBM
1072		1322
1073	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */	1323	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1074		1324
		1325	/* only the oldest of old doesn't have this one. solaris. */
		1326	#ifdef INFINITY
		1327	#define ECB_INFINITY INFINITY
		1328	#else
		1329	#define ECB_INFINITY HUGE_VAL
		1330	#endif
		1331
1075	#ifdef NEN	1332	#ifdef NAN
1076	#define ECB_NAN NAN	1333	#define ECB_NAN NAN
1077	#else	1334	#else
1078	#define ECB_NAN INFINITY	1335	#define ECB_NAN ECB_INFINITY
1079	#endif	1336	#endif
1080		1337
1081	/* converts an ieee half/binary16 to a float */	1338	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1082	ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;	1339	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
1083	ecb_function_ float	1340	#define ecb_frexpf(x,e) frexpf ((x), (e))
1084	ecb_binary16_to_float (uint16_t x)	1341	#else
1085	{	1342	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1086	int e = (x >> 10) & 0x1f;	1343	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1087	int m = x & 0x3ff;	1344	#endif
1088	float r;
1089
1090	if (!e ) r = ldexpf (m , -24);
1091	else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1092	else if (m ) r = ECB_NAN;
1093	else r = INFINITY;
1094
1095	return x & 0x8000 ? -r : r;
1096	}
1097		1345
1098	/* convert a float to ieee single/binary32 */	1346	/* convert a float to ieee single/binary32 */
1099	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1347	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1100	ecb_function_ uint32_t	1348	ecb_function_ ecb_const uint32_t
1101	ecb_float_to_binary32 (float x)	1349	ecb_float_to_binary32 (float x)
1102	{	1350	{
1103	uint32_t r;	1351	uint32_t r;
1104		1352
1105	#if ECB_STDFP	1353	#if ECB_STDFP
…		…
1112	if (x == 0e0f ) return 0x00000000U;	1360	if (x == 0e0f ) return 0x00000000U;
1113	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1361	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1114	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1362	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1115	if (x != x ) return 0x7fbfffffU;	1363	if (x != x ) return 0x7fbfffffU;
1116		1364
1117	m = frexpf (x, &e) * 0x1000000U;	1365	m = ecb_frexpf (x, &e) * 0x1000000U;
1118		1366
1119	r = m & 0x80000000U;	1367	r = m & 0x80000000U;
1120		1368
1121	if (r)	1369	if (r)
1122	m = -m;	1370	m = -m;
…		…
1134		1382
1135	return r;	1383	return r;
1136	}	1384	}
1137		1385
1138	/* converts an ieee single/binary32 to a float */	1386	/* converts an ieee single/binary32 to a float */
1139	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1387	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1140	ecb_function_ float	1388	ecb_function_ ecb_const float
1141	ecb_binary32_to_float (uint32_t x)	1389	ecb_binary32_to_float (uint32_t x)
1142	{	1390	{
1143	float r;	1391	float r;
1144		1392
1145	#if ECB_STDFP	1393	#if ECB_STDFP
…		…
1155	x |= 0x800000U;	1403	x |= 0x800000U;
1156	else	1404	else
1157	e = 1;	1405	e = 1;
1158		1406
1159	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */	1407	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1160	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1408	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1161		1409
1162	r = neg ? -r : r;	1410	r = neg ? -r : r;
1163	#endif	1411	#endif
1164		1412
1165	return r;	1413	return r;
1166	}	1414	}
1167		1415
1168	/* convert a double to ieee double/binary64 */	1416	/* convert a double to ieee double/binary64 */
1169	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1417	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1170	ecb_function_ uint64_t	1418	ecb_function_ ecb_const uint64_t
1171	ecb_double_to_binary64 (double x)	1419	ecb_double_to_binary64 (double x)
1172	{	1420	{
1173	uint64_t r;	1421	uint64_t r;
1174		1422
1175	#if ECB_STDFP	1423	#if ECB_STDFP
…		…
1204		1452
1205	return r;	1453	return r;
1206	}	1454	}
1207		1455
1208	/* converts an ieee double/binary64 to a double */	1456	/* converts an ieee double/binary64 to a double */
1209	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1457	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1210	ecb_function_ double	1458	ecb_function_ ecb_const double
1211	ecb_binary64_to_double (uint64_t x)	1459	ecb_binary64_to_double (uint64_t x)
1212	{	1460	{
1213	double r;	1461	double r;
1214		1462
1215	#if ECB_STDFP	1463	#if ECB_STDFP
…		…
1231		1479
1232	r = neg ? -r : r;	1480	r = neg ? -r : r;
1233	#endif	1481	#endif
1234		1482
1235	return r;	1483	return r;
		1484	}
		1485
		1486	/* convert a float to ieee half/binary16 */
		1487	ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
		1488	ecb_function_ ecb_const uint16_t
		1489	ecb_float_to_binary16 (float x)
		1490	{
		1491	return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
		1492	}
		1493
		1494	/* convert an ieee half/binary16 to float */
		1495	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1496	ecb_function_ ecb_const float
		1497	ecb_binary16_to_float (uint16_t x)
		1498	{
		1499	return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1236	}	1500	}
1237		1501
1238	#endif	1502	#endif
1239		1503
1240	#endif	1504	#endif
…		…
1265	#define inline_size ecb_inline	1529	#define inline_size ecb_inline
1266		1530
1267	#if EV_FEATURE_CODE	1531	#if EV_FEATURE_CODE
1268	# define inline_speed ecb_inline	1532	# define inline_speed ecb_inline
1269	#else	1533	#else
1270	# define inline_speed static noinline	1534	# define inline_speed noinline static
1271	#endif	1535	#endif
1272		1536
1273	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1537	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1274		1538
1275	#if EV_MINPRI == EV_MAXPRI	1539	#if EV_MINPRI == EV_MAXPRI
…		…
1322	#else	1586	#else
1323		1587
1324	#include <float.h>	1588	#include <float.h>
1325		1589
1326	/* a floor() replacement function, should be independent of ev_tstamp type */	1590	/* a floor() replacement function, should be independent of ev_tstamp type */
		1591	noinline
1327	static ev_tstamp noinline	1592	static ev_tstamp
1328	ev_floor (ev_tstamp v)	1593	ev_floor (ev_tstamp v)
1329	{	1594	{
1330	/* the choice of shift factor is not terribly important */	1595	/* the choice of shift factor is not terribly important */
1331	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1596	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1332	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1597	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
…		…
1364		1629
1365	#ifdef __linux	1630	#ifdef __linux
1366	# include <sys/utsname.h>	1631	# include <sys/utsname.h>
1367	#endif	1632	#endif
1368		1633
1369	static unsigned int noinline ecb_cold	1634	noinline ecb_cold
		1635	static unsigned int
1370	ev_linux_version (void)	1636	ev_linux_version (void)
1371	{	1637	{
1372	#ifdef __linux	1638	#ifdef __linux
1373	unsigned int v = 0;	1639	unsigned int v = 0;
1374	struct utsname buf;	1640	struct utsname buf;
…		…
1403	}	1669	}
1404		1670
1405	/*****************************************************************************/	1671	/*****************************************************************************/
1406		1672
1407	#if EV_AVOID_STDIO	1673	#if EV_AVOID_STDIO
1408	static void noinline ecb_cold	1674	noinline ecb_cold
		1675	static void
1409	ev_printerr (const char *msg)	1676	ev_printerr (const char *msg)
1410	{	1677	{
1411	write (STDERR_FILENO, msg, strlen (msg));	1678	write (STDERR_FILENO, msg, strlen (msg));
1412	}	1679	}
1413	#endif	1680	#endif
1414		1681
1415	static void (*syserr_cb)(const char *msg) EV_THROW;	1682	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1416		1683
1417	void ecb_cold	1684	ecb_cold
		1685	void
1418	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1686	ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1419	{	1687	{
1420	syserr_cb = cb;	1688	syserr_cb = cb;
1421	}	1689	}
1422		1690
1423	static void noinline ecb_cold	1691	noinline ecb_cold
		1692	static void
1424	ev_syserr (const char *msg)	1693	ev_syserr (const char *msg)
1425	{	1694	{
1426	if (!msg)	1695	if (!msg)
1427	msg = "(libev) system error";	1696	msg = "(libev) system error";
1428		1697
…		…
1441	abort ();	1710	abort ();
1442	}	1711	}
1443	}	1712	}
1444		1713
1445	static void *	1714	static void *
1446	ev_realloc_emul (void *ptr, long size) EV_THROW	1715	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1447	{	1716	{
1448	/* some systems, notably openbsd and darwin, fail to properly	1717	/* some systems, notably openbsd and darwin, fail to properly
1449	* implement realloc (x, 0) (as required by both ansi c-89 and	1718	* implement realloc (x, 0) (as required by both ansi c-89 and
1450	* the single unix specification, so work around them here.	1719	* the single unix specification, so work around them here.
1451	* recently, also (at least) fedora and debian started breaking it,	1720	* recently, also (at least) fedora and debian started breaking it,
…		…
1457		1726
1458	free (ptr);	1727	free (ptr);
1459	return 0;	1728	return 0;
1460	}	1729	}
1461		1730
1462	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1731	static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1463		1732
1464	void ecb_cold	1733	ecb_cold
		1734	void
1465	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	1735	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1466	{	1736	{
1467	alloc = cb;	1737	alloc = cb;
1468	}	1738	}
1469		1739
1470	inline_speed void *	1740	inline_speed void *
…		…
1587		1857
1588	/*****************************************************************************/	1858	/*****************************************************************************/
1589		1859
1590	#ifndef EV_HAVE_EV_TIME	1860	#ifndef EV_HAVE_EV_TIME
1591	ev_tstamp	1861	ev_tstamp
1592	ev_time (void) EV_THROW	1862	ev_time (void) EV_NOEXCEPT
1593	{	1863	{
1594	#if EV_USE_REALTIME	1864	#if EV_USE_REALTIME
1595	if (expect_true (have_realtime))	1865	if (expect_true (have_realtime))
1596	{	1866	{
1597	struct timespec ts;	1867	struct timespec ts;
…		…
1621	return ev_time ();	1891	return ev_time ();
1622	}	1892	}
1623		1893
1624	#if EV_MULTIPLICITY	1894	#if EV_MULTIPLICITY
1625	ev_tstamp	1895	ev_tstamp
1626	ev_now (EV_P) EV_THROW	1896	ev_now (EV_P) EV_NOEXCEPT
1627	{	1897	{
1628	return ev_rt_now;	1898	return ev_rt_now;
1629	}	1899	}
1630	#endif	1900	#endif
1631		1901
1632	void	1902	void
1633	ev_sleep (ev_tstamp delay) EV_THROW	1903	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1634	{	1904	{
1635	if (delay > 0.)	1905	if (delay > 0.)
1636	{	1906	{
1637	#if EV_USE_NANOSLEEP	1907	#if EV_USE_NANOSLEEP
1638	struct timespec ts;	1908	struct timespec ts;
1639		1909
1640	EV_TS_SET (ts, delay);	1910	EV_TS_SET (ts, delay);
1641	nanosleep (&ts, 0);	1911	nanosleep (&ts, 0);
1642	#elif defined _WIN32	1912	#elif defined _WIN32
		1913	/* maybe this should round up, as ms is very low resolution */
		1914	/* compared to select (µs) or nanosleep (ns) */
1643	Sleep ((unsigned long)(delay * 1e3));	1915	Sleep ((unsigned long)(delay * 1e3));
1644	#else	1916	#else
1645	struct timeval tv;	1917	struct timeval tv;
1646		1918
1647	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1919	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1678	}	1950	}
1679		1951
1680	return ncur;	1952	return ncur;
1681	}	1953	}
1682		1954
1683	static void * noinline ecb_cold	1955	noinline ecb_cold
		1956	static void *
1684	array_realloc (int elem, void *base, int *cur, int cnt)	1957	array_realloc (int elem, void *base, int *cur, int cnt)
1685	{	1958	{
1686	*cur = array_nextsize (elem, *cur, cnt);	1959	*cur = array_nextsize (elem, *cur, cnt);
1687	return ev_realloc (base, elem * *cur);	1960	return ev_realloc (base, elem * *cur);
1688	}	1961	}
…		…
1691	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1964	memset ((void *)(base), 0, sizeof (*(base)) * (count))
1692		1965
1693	#define array_needsize(type,base,cur,cnt,init) \	1966	#define array_needsize(type,base,cur,cnt,init) \
1694	if (expect_false ((cnt) > (cur))) \	1967	if (expect_false ((cnt) > (cur))) \
1695	{ \	1968	{ \
1696	int ecb_unused ocur_ = (cur); \	1969	ecb_unused int ocur_ = (cur); \
1697	(base) = (type *)array_realloc \	1970	(base) = (type *)array_realloc \
1698	(sizeof (type), (base), &(cur), (cnt)); \	1971	(sizeof (type), (base), &(cur), (cnt)); \
1699	init ((base) + (ocur_), (cur) - ocur_); \	1972	init ((base) + (ocur_), (cur) - ocur_); \
1700	}	1973	}
1701		1974
…		…
1713	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	1986	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1714		1987
1715	/*****************************************************************************/	1988	/*****************************************************************************/
1716		1989
1717	/* dummy callback for pending events */	1990	/* dummy callback for pending events */
1718	static void noinline	1991	noinline
		1992	static void
1719	pendingcb (EV_P_ ev_prepare *w, int revents)	1993	pendingcb (EV_P_ ev_prepare *w, int revents)
1720	{	1994	{
1721	}	1995	}
1722		1996
1723	void noinline	1997	noinline
		1998	void
1724	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	1999	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1725	{	2000	{
1726	W w_ = (W)w;	2001	W w_ = (W)w;
1727	int pri = ABSPRI (w_);	2002	int pri = ABSPRI (w_);
1728		2003
1729	if (expect_false (w_->pending))	2004	if (expect_false (w_->pending))
…		…
1790	if (expect_true (!anfd->reify))	2065	if (expect_true (!anfd->reify))
1791	fd_event_nocheck (EV_A_ fd, revents);	2066	fd_event_nocheck (EV_A_ fd, revents);
1792	}	2067	}
1793		2068
1794	void	2069	void
1795	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW	2070	ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1796	{	2071	{
1797	if (fd >= 0 && fd < anfdmax)	2072	if (fd >= 0 && fd < anfdmax)
1798	fd_event_nocheck (EV_A_ fd, revents);	2073	fd_event_nocheck (EV_A_ fd, revents);
1799	}	2074	}
1800		2075
…		…
1858		2133
1859	fdchangecnt = 0;	2134	fdchangecnt = 0;
1860	}	2135	}
1861		2136
1862	/* something about the given fd changed */	2137	/* something about the given fd changed */
1863	inline_size void	2138	inline_size
		2139	void
1864	fd_change (EV_P_ int fd, int flags)	2140	fd_change (EV_P_ int fd, int flags)
1865	{	2141	{
1866	unsigned char reify = anfds [fd].reify;	2142	unsigned char reify = anfds [fd].reify;
1867	anfds [fd].reify |= flags;	2143	anfds [fd].reify |= flags;
1868		2144
…		…
1873	fdchanges [fdchangecnt - 1] = fd;	2149	fdchanges [fdchangecnt - 1] = fd;
1874	}	2150	}
1875	}	2151	}
1876		2152
1877	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2153	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1878	inline_speed void ecb_cold	2154	inline_speed ecb_cold void
1879	fd_kill (EV_P_ int fd)	2155	fd_kill (EV_P_ int fd)
1880	{	2156	{
1881	ev_io *w;	2157	ev_io *w;
1882		2158
1883	while ((w = (ev_io *)anfds [fd].head))	2159	while ((w = (ev_io *)anfds [fd].head))
…		…
1886	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	2162	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1887	}	2163	}
1888	}	2164	}
1889		2165
1890	/* check whether the given fd is actually valid, for error recovery */	2166	/* check whether the given fd is actually valid, for error recovery */
1891	inline_size int ecb_cold	2167	inline_size ecb_cold int
1892	fd_valid (int fd)	2168	fd_valid (int fd)
1893	{	2169	{
1894	#ifdef _WIN32	2170	#ifdef _WIN32
1895	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2171	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1896	#else	2172	#else
1897	return fcntl (fd, F_GETFD) != -1;	2173	return fcntl (fd, F_GETFD) != -1;
1898	#endif	2174	#endif
1899	}	2175	}
1900		2176
1901	/* called on EBADF to verify fds */	2177	/* called on EBADF to verify fds */
1902	static void noinline ecb_cold	2178	noinline ecb_cold
		2179	static void
1903	fd_ebadf (EV_P)	2180	fd_ebadf (EV_P)
1904	{	2181	{
1905	int fd;	2182	int fd;
1906		2183
1907	for (fd = 0; fd < anfdmax; ++fd)	2184	for (fd = 0; fd < anfdmax; ++fd)
…		…
1909	if (!fd_valid (fd) && errno == EBADF)	2186	if (!fd_valid (fd) && errno == EBADF)
1910	fd_kill (EV_A_ fd);	2187	fd_kill (EV_A_ fd);
1911	}	2188	}
1912		2189
1913	/* called on ENOMEM in select/poll to kill some fds and retry */	2190	/* called on ENOMEM in select/poll to kill some fds and retry */
1914	static void noinline ecb_cold	2191	noinline ecb_cold
		2192	static void
1915	fd_enomem (EV_P)	2193	fd_enomem (EV_P)
1916	{	2194	{
1917	int fd;	2195	int fd;
1918		2196
1919	for (fd = anfdmax; fd--; )	2197	for (fd = anfdmax; fd--; )
…		…
1923	break;	2201	break;
1924	}	2202	}
1925	}	2203	}
1926		2204
1927	/* usually called after fork if backend needs to re-arm all fds from scratch */	2205	/* usually called after fork if backend needs to re-arm all fds from scratch */
1928	static void noinline	2206	noinline
		2207	static void
1929	fd_rearm_all (EV_P)	2208	fd_rearm_all (EV_P)
1930	{	2209	{
1931	int fd;	2210	int fd;
1932		2211
1933	for (fd = 0; fd < anfdmax; ++fd)	2212	for (fd = 0; fd < anfdmax; ++fd)
…		…
2114		2393
2115	/*****************************************************************************/	2394	/*****************************************************************************/
2116		2395
2117	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2396	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2118		2397
2119	static void noinline ecb_cold	2398	noinline ecb_cold
		2399	static void
2120	evpipe_init (EV_P)	2400	evpipe_init (EV_P)
2121	{	2401	{
2122	if (!ev_is_active (&pipe_w))	2402	if (!ev_is_active (&pipe_w))
2123	{	2403	{
2124	int fds [2];	2404	int fds [2];
…		…
2195	#endif	2475	#endif
2196	{	2476	{
2197	#ifdef _WIN32	2477	#ifdef _WIN32
2198	WSABUF buf;	2478	WSABUF buf;
2199	DWORD sent;	2479	DWORD sent;
2200	buf.buf = &buf;	2480	buf.buf = (char *)&buf;
2201	buf.len = 1;	2481	buf.len = 1;
2202	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);	2482	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2203	#else	2483	#else
2204	write (evpipe [1], &(evpipe [1]), 1);	2484	write (evpipe [1], &(evpipe [1]), 1);
2205	#endif	2485	#endif
…		…
2277	}	2557	}
2278		2558
2279	/*****************************************************************************/	2559	/*****************************************************************************/
2280		2560
2281	void	2561	void
2282	ev_feed_signal (int signum) EV_THROW	2562	ev_feed_signal (int signum) EV_NOEXCEPT
2283	{	2563	{
2284	#if EV_MULTIPLICITY	2564	#if EV_MULTIPLICITY
2285	EV_P;	2565	EV_P;
2286	ECB_MEMORY_FENCE_ACQUIRE;	2566	ECB_MEMORY_FENCE_ACQUIRE;
2287	EV_A = signals [signum - 1].loop;	2567	EV_A = signals [signum - 1].loop;
…		…
2302	#endif	2582	#endif
2303		2583
2304	ev_feed_signal (signum);	2584	ev_feed_signal (signum);
2305	}	2585	}
2306		2586
2307	void noinline	2587	noinline
		2588	void
2308	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2589	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2309	{	2590	{
2310	WL w;	2591	WL w;
2311		2592
2312	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2593	if (expect_false (signum <= 0 || signum >= EV_NSIG))
2313	return;	2594	return;
…		…
2429	#endif	2710	#endif
2430	#if EV_USE_SELECT	2711	#if EV_USE_SELECT
2431	# include "ev_select.c"	2712	# include "ev_select.c"
2432	#endif	2713	#endif
2433		2714
2434	int ecb_cold	2715	ecb_cold int
2435	ev_version_major (void) EV_THROW	2716	ev_version_major (void) EV_NOEXCEPT
2436	{	2717	{
2437	return EV_VERSION_MAJOR;	2718	return EV_VERSION_MAJOR;
2438	}	2719	}
2439		2720
2440	int ecb_cold	2721	ecb_cold int
2441	ev_version_minor (void) EV_THROW	2722	ev_version_minor (void) EV_NOEXCEPT
2442	{	2723	{
2443	return EV_VERSION_MINOR;	2724	return EV_VERSION_MINOR;
2444	}	2725	}
2445		2726
2446	/* return true if we are running with elevated privileges and should ignore env variables */	2727	/* return true if we are running with elevated privileges and should ignore env variables */
2447	int inline_size ecb_cold	2728	inline_size ecb_cold int
2448	enable_secure (void)	2729	enable_secure (void)
2449	{	2730	{
2450	#ifdef _WIN32	2731	#ifdef _WIN32
2451	return 0;	2732	return 0;
2452	#else	2733	#else
2453	return getuid () != geteuid ()	2734	return getuid () != geteuid ()
2454	|| getgid () != getegid ();	2735	|| getgid () != getegid ();
2455	#endif	2736	#endif
2456	}	2737	}
2457		2738
2458	unsigned int ecb_cold	2739	ecb_cold
		2740	unsigned int
2459	ev_supported_backends (void) EV_THROW	2741	ev_supported_backends (void) EV_NOEXCEPT
2460	{	2742	{
2461	unsigned int flags = 0;	2743	unsigned int flags = 0;
2462		2744
2463	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2745	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2464	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2746	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2467	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2749	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2468		2750
2469	return flags;	2751	return flags;
2470	}	2752	}
2471		2753
2472	unsigned int ecb_cold	2754	ecb_cold
		2755	unsigned int
2473	ev_recommended_backends (void) EV_THROW	2756	ev_recommended_backends (void) EV_NOEXCEPT
2474	{	2757	{
2475	unsigned int flags = ev_supported_backends ();	2758	unsigned int flags = ev_supported_backends ();
2476		2759
2477	#ifndef __NetBSD__	2760	#ifndef __NetBSD__
2478	/* kqueue is borked on everything but netbsd apparently */	2761	/* kqueue is borked on everything but netbsd apparently */
…		…
2489	#endif	2772	#endif
2490		2773
2491	return flags;	2774	return flags;
2492	}	2775	}
2493		2776
2494	unsigned int ecb_cold	2777	ecb_cold
		2778	unsigned int
2495	ev_embeddable_backends (void) EV_THROW	2779	ev_embeddable_backends (void) EV_NOEXCEPT
2496	{	2780	{
2497	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2781	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2498		2782
2499	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2783	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2500	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2784	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2502		2786
2503	return flags;	2787	return flags;
2504	}	2788	}
2505		2789
2506	unsigned int	2790	unsigned int
2507	ev_backend (EV_P) EV_THROW	2791	ev_backend (EV_P) EV_NOEXCEPT
2508	{	2792	{
2509	return backend;	2793	return backend;
2510	}	2794	}
2511		2795
2512	#if EV_FEATURE_API	2796	#if EV_FEATURE_API
2513	unsigned int	2797	unsigned int
2514	ev_iteration (EV_P) EV_THROW	2798	ev_iteration (EV_P) EV_NOEXCEPT
2515	{	2799	{
2516	return loop_count;	2800	return loop_count;
2517	}	2801	}
2518		2802
2519	unsigned int	2803	unsigned int
2520	ev_depth (EV_P) EV_THROW	2804	ev_depth (EV_P) EV_NOEXCEPT
2521	{	2805	{
2522	return loop_depth;	2806	return loop_depth;
2523	}	2807	}
2524		2808
2525	void	2809	void
2526	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2810	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2527	{	2811	{
2528	io_blocktime = interval;	2812	io_blocktime = interval;
2529	}	2813	}
2530		2814
2531	void	2815	void
2532	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2816	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2533	{	2817	{
2534	timeout_blocktime = interval;	2818	timeout_blocktime = interval;
2535	}	2819	}
2536		2820
2537	void	2821	void
2538	ev_set_userdata (EV_P_ void *data) EV_THROW	2822	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2539	{	2823	{
2540	userdata = data;	2824	userdata = data;
2541	}	2825	}
2542		2826
2543	void *	2827	void *
2544	ev_userdata (EV_P) EV_THROW	2828	ev_userdata (EV_P) EV_NOEXCEPT
2545	{	2829	{
2546	return userdata;	2830	return userdata;
2547	}	2831	}
2548		2832
2549	void	2833	void
2550	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW	2834	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2551	{	2835	{
2552	invoke_cb = invoke_pending_cb;	2836	invoke_cb = invoke_pending_cb;
2553	}	2837	}
2554		2838
2555	void	2839	void
2556	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW	2840	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2557	{	2841	{
2558	release_cb = release;	2842	release_cb = release;
2559	acquire_cb = acquire;	2843	acquire_cb = acquire;
2560	}	2844	}
2561	#endif	2845	#endif
2562		2846
2563	/* initialise a loop structure, must be zero-initialised */	2847	/* initialise a loop structure, must be zero-initialised */
2564	static void noinline ecb_cold	2848	noinline ecb_cold
		2849	static void
2565	loop_init (EV_P_ unsigned int flags) EV_THROW	2850	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2566	{	2851	{
2567	if (!backend)	2852	if (!backend)
2568	{	2853	{
2569	origflags = flags;	2854	origflags = flags;
2570		2855
…		…
2656	#endif	2941	#endif
2657	}	2942	}
2658	}	2943	}
2659		2944
2660	/* free up a loop structure */	2945	/* free up a loop structure */
2661	void ecb_cold	2946	ecb_cold
		2947	void
2662	ev_loop_destroy (EV_P)	2948	ev_loop_destroy (EV_P)
2663	{	2949	{
2664	int i;	2950	int i;
2665		2951
2666	#if EV_MULTIPLICITY	2952	#if EV_MULTIPLICITY
…		…
2787	#if EV_USE_INOTIFY	3073	#if EV_USE_INOTIFY
2788	infy_fork (EV_A);	3074	infy_fork (EV_A);
2789	#endif	3075	#endif
2790		3076
2791	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3077	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2792	if (ev_is_active (&pipe_w))	3078	if (ev_is_active (&pipe_w) && postfork != 2)
2793	{	3079	{
2794	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3080	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2795		3081
2796	ev_ref (EV_A);	3082	ev_ref (EV_A);
2797	ev_io_stop (EV_A_ &pipe_w);	3083	ev_io_stop (EV_A_ &pipe_w);
…		…
2808	postfork = 0;	3094	postfork = 0;
2809	}	3095	}
2810		3096
2811	#if EV_MULTIPLICITY	3097	#if EV_MULTIPLICITY
2812		3098
		3099	ecb_cold
2813	struct ev_loop * ecb_cold	3100	struct ev_loop *
2814	ev_loop_new (unsigned int flags) EV_THROW	3101	ev_loop_new (unsigned int flags) EV_NOEXCEPT
2815	{	3102	{
2816	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3103	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2817		3104
2818	memset (EV_A, 0, sizeof (struct ev_loop));	3105	memset (EV_A, 0, sizeof (struct ev_loop));
2819	loop_init (EV_A_ flags);	3106	loop_init (EV_A_ flags);
…		…
2826	}	3113	}
2827		3114
2828	#endif /* multiplicity */	3115	#endif /* multiplicity */
2829		3116
2830	#if EV_VERIFY	3117	#if EV_VERIFY
2831	static void noinline ecb_cold	3118	noinline ecb_cold
		3119	static void
2832	verify_watcher (EV_P_ W w)	3120	verify_watcher (EV_P_ W w)
2833	{	3121	{
2834	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3122	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2835		3123
2836	if (w->pending)	3124	if (w->pending)
2837	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3125	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2838	}	3126	}
2839		3127
2840	static void noinline ecb_cold	3128	noinline ecb_cold
		3129	static void
2841	verify_heap (EV_P_ ANHE *heap, int N)	3130	verify_heap (EV_P_ ANHE *heap, int N)
2842	{	3131	{
2843	int i;	3132	int i;
2844		3133
2845	for (i = HEAP0; i < N + HEAP0; ++i)	3134	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2850		3139
2851	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3140	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2852	}	3141	}
2853	}	3142	}
2854		3143
2855	static void noinline ecb_cold	3144	noinline ecb_cold
		3145	static void
2856	array_verify (EV_P_ W *ws, int cnt)	3146	array_verify (EV_P_ W *ws, int cnt)
2857	{	3147	{
2858	while (cnt--)	3148	while (cnt--)
2859	{	3149	{
2860	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3150	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2863	}	3153	}
2864	#endif	3154	#endif
2865		3155
2866	#if EV_FEATURE_API	3156	#if EV_FEATURE_API
2867	void ecb_cold	3157	void ecb_cold
2868	ev_verify (EV_P) EV_THROW	3158	ev_verify (EV_P) EV_NOEXCEPT
2869	{	3159	{
2870	#if EV_VERIFY	3160	#if EV_VERIFY
2871	int i;	3161	int i;
2872	WL w, w2;	3162	WL w, w2;
2873		3163
…		…
2949	#endif	3239	#endif
2950	}	3240	}
2951	#endif	3241	#endif
2952		3242
2953	#if EV_MULTIPLICITY	3243	#if EV_MULTIPLICITY
		3244	ecb_cold
2954	struct ev_loop * ecb_cold	3245	struct ev_loop *
2955	#else	3246	#else
2956	int	3247	int
2957	#endif	3248	#endif
2958	ev_default_loop (unsigned int flags) EV_THROW	3249	ev_default_loop (unsigned int flags) EV_NOEXCEPT
2959	{	3250	{
2960	if (!ev_default_loop_ptr)	3251	if (!ev_default_loop_ptr)
2961	{	3252	{
2962	#if EV_MULTIPLICITY	3253	#if EV_MULTIPLICITY
2963	EV_P = ev_default_loop_ptr = &default_loop_struct;	3254	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2982		3273
2983	return ev_default_loop_ptr;	3274	return ev_default_loop_ptr;
2984	}	3275	}
2985		3276
2986	void	3277	void
2987	ev_loop_fork (EV_P) EV_THROW	3278	ev_loop_fork (EV_P) EV_NOEXCEPT
2988	{	3279	{
2989	postfork = 1;	3280	postfork = 1;
2990	}	3281	}
2991		3282
2992	/*****************************************************************************/	3283	/*****************************************************************************/
…		…
2996	{	3287	{
2997	EV_CB_INVOKE ((W)w, revents);	3288	EV_CB_INVOKE ((W)w, revents);
2998	}	3289	}
2999		3290
3000	unsigned int	3291	unsigned int
3001	ev_pending_count (EV_P) EV_THROW	3292	ev_pending_count (EV_P) EV_NOEXCEPT
3002	{	3293	{
3003	int pri;	3294	int pri;
3004	unsigned int count = 0;	3295	unsigned int count = 0;
3005		3296
3006	for (pri = NUMPRI; pri--; )	3297	for (pri = NUMPRI; pri--; )
3007	count += pendingcnt [pri];	3298	count += pendingcnt [pri];
3008		3299
3009	return count;	3300	return count;
3010	}	3301	}
3011		3302
3012	void noinline	3303	noinline
		3304	void
3013	ev_invoke_pending (EV_P)	3305	ev_invoke_pending (EV_P)
3014	{	3306	{
3015	pendingpri = NUMPRI;	3307	pendingpri = NUMPRI;
3016		3308
3017	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3309	do
3018	{	3310	{
3019	--pendingpri;	3311	--pendingpri;
3020		3312
		3313	/* pendingpri possibly gets modified in the inner loop */
3021	while (pendingcnt [pendingpri])	3314	while (pendingcnt [pendingpri])
3022	{	3315	{
3023	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3316	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3024		3317
3025	p->w->pending = 0;	3318	p->w->pending = 0;
3026	EV_CB_INVOKE (p->w, p->events);	3319	EV_CB_INVOKE (p->w, p->events);
3027	EV_FREQUENT_CHECK;	3320	EV_FREQUENT_CHECK;
3028	}	3321	}
3029	}	3322	}
		3323	while (pendingpri);
3030	}	3324	}
3031		3325
3032	#if EV_IDLE_ENABLE	3326	#if EV_IDLE_ENABLE
3033	/* make idle watchers pending. this handles the "call-idle */	3327	/* make idle watchers pending. this handles the "call-idle */
3034	/* only when higher priorities are idle" logic */	3328	/* only when higher priorities are idle" logic */
…		…
3092	}	3386	}
3093	}	3387	}
3094		3388
3095	#if EV_PERIODIC_ENABLE	3389	#if EV_PERIODIC_ENABLE
3096		3390
3097	static void noinline	3391	noinline
		3392	static void
3098	periodic_recalc (EV_P_ ev_periodic *w)	3393	periodic_recalc (EV_P_ ev_periodic *w)
3099	{	3394	{
3100	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3395	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3101	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3396	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3102		3397
…		…
3160	}	3455	}
3161	}	3456	}
3162		3457
3163	/* simply recalculate all periodics */	3458	/* simply recalculate all periodics */
3164	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3459	/* TODO: maybe ensure that at least one event happens when jumping forward? */
3165	static void noinline ecb_cold	3460	noinline ecb_cold
		3461	static void
3166	periodics_reschedule (EV_P)	3462	periodics_reschedule (EV_P)
3167	{	3463	{
3168	int i;	3464	int i;
3169		3465
3170	/* adjust periodics after time jump */	3466	/* adjust periodics after time jump */
…		…
3183	reheap (periodics, periodiccnt);	3479	reheap (periodics, periodiccnt);
3184	}	3480	}
3185	#endif	3481	#endif
3186		3482
3187	/* adjust all timers by a given offset */	3483	/* adjust all timers by a given offset */
3188	static void noinline ecb_cold	3484	noinline ecb_cold
		3485	static void
3189	timers_reschedule (EV_P_ ev_tstamp adjust)	3486	timers_reschedule (EV_P_ ev_tstamp adjust)
3190	{	3487	{
3191	int i;	3488	int i;
3192		3489
3193	for (i = 0; i < timercnt; ++i)	3490	for (i = 0; i < timercnt; ++i)
…		…
3440		3737
3441	return activecnt;	3738	return activecnt;
3442	}	3739	}
3443		3740
3444	void	3741	void
3445	ev_break (EV_P_ int how) EV_THROW	3742	ev_break (EV_P_ int how) EV_NOEXCEPT
3446	{	3743	{
3447	loop_done = how;	3744	loop_done = how;
3448	}	3745	}
3449		3746
3450	void	3747	void
3451	ev_ref (EV_P) EV_THROW	3748	ev_ref (EV_P) EV_NOEXCEPT
3452	{	3749	{
3453	++activecnt;	3750	++activecnt;
3454	}	3751	}
3455		3752
3456	void	3753	void
3457	ev_unref (EV_P) EV_THROW	3754	ev_unref (EV_P) EV_NOEXCEPT
3458	{	3755	{
3459	--activecnt;	3756	--activecnt;
3460	}	3757	}
3461		3758
3462	void	3759	void
3463	ev_now_update (EV_P) EV_THROW	3760	ev_now_update (EV_P) EV_NOEXCEPT
3464	{	3761	{
3465	time_update (EV_A_ 1e100);	3762	time_update (EV_A_ 1e100);
3466	}	3763	}
3467		3764
3468	void	3765	void
3469	ev_suspend (EV_P) EV_THROW	3766	ev_suspend (EV_P) EV_NOEXCEPT
3470	{	3767	{
3471	ev_now_update (EV_A);	3768	ev_now_update (EV_A);
3472	}	3769	}
3473		3770
3474	void	3771	void
3475	ev_resume (EV_P) EV_THROW	3772	ev_resume (EV_P) EV_NOEXCEPT
3476	{	3773	{
3477	ev_tstamp mn_prev = mn_now;	3774	ev_tstamp mn_prev = mn_now;
3478		3775
3479	ev_now_update (EV_A);	3776	ev_now_update (EV_A);
3480	timers_reschedule (EV_A_ mn_now - mn_prev);	3777	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3519	w->pending = 0;	3816	w->pending = 0;
3520	}	3817	}
3521	}	3818	}
3522		3819
3523	int	3820	int
3524	ev_clear_pending (EV_P_ void *w) EV_THROW	3821	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3525	{	3822	{
3526	W w_ = (W)w;	3823	W w_ = (W)w;
3527	int pending = w_->pending;	3824	int pending = w_->pending;
3528		3825
3529	if (expect_true (pending))	3826	if (expect_true (pending))
…		…
3561	w->active = 0;	3858	w->active = 0;
3562	}	3859	}
3563		3860
3564	/*****************************************************************************/	3861	/*****************************************************************************/
3565		3862
3566	void noinline	3863	noinline
		3864	void
3567	ev_io_start (EV_P_ ev_io *w) EV_THROW	3865	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3568	{	3866	{
3569	int fd = w->fd;	3867	int fd = w->fd;
3570		3868
3571	if (expect_false (ev_is_active (w)))	3869	if (expect_false (ev_is_active (w)))
3572	return;	3870	return;
…		…
3587	w->events &= ~EV__IOFDSET;	3885	w->events &= ~EV__IOFDSET;
3588		3886
3589	EV_FREQUENT_CHECK;	3887	EV_FREQUENT_CHECK;
3590	}	3888	}
3591		3889
3592	void noinline	3890	noinline
		3891	void
3593	ev_io_stop (EV_P_ ev_io *w) EV_THROW	3892	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3594	{	3893	{
3595	clear_pending (EV_A_ (W)w);	3894	clear_pending (EV_A_ (W)w);
3596	if (expect_false (!ev_is_active (w)))	3895	if (expect_false (!ev_is_active (w)))
3597	return;	3896	return;
3598		3897
…		…
3606	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	3905	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3607		3906
3608	EV_FREQUENT_CHECK;	3907	EV_FREQUENT_CHECK;
3609	}	3908	}
3610		3909
3611	void noinline	3910	noinline
		3911	void
3612	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	3912	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3613	{	3913	{
3614	if (expect_false (ev_is_active (w)))	3914	if (expect_false (ev_is_active (w)))
3615	return;	3915	return;
3616		3916
3617	ev_at (w) += mn_now;	3917	ev_at (w) += mn_now;
…		…
3630	EV_FREQUENT_CHECK;	3930	EV_FREQUENT_CHECK;
3631		3931
3632	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3932	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3633	}	3933	}
3634		3934
3635	void noinline	3935	noinline
		3936	void
3636	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	3937	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3637	{	3938	{
3638	clear_pending (EV_A_ (W)w);	3939	clear_pending (EV_A_ (W)w);
3639	if (expect_false (!ev_is_active (w)))	3940	if (expect_false (!ev_is_active (w)))
3640	return;	3941	return;
3641		3942
…		…
3660	ev_stop (EV_A_ (W)w);	3961	ev_stop (EV_A_ (W)w);
3661		3962
3662	EV_FREQUENT_CHECK;	3963	EV_FREQUENT_CHECK;
3663	}	3964	}
3664		3965
3665	void noinline	3966	noinline
		3967	void
3666	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	3968	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3667	{	3969	{
3668	EV_FREQUENT_CHECK;	3970	EV_FREQUENT_CHECK;
3669		3971
3670	clear_pending (EV_A_ (W)w);	3972	clear_pending (EV_A_ (W)w);
3671		3973
…		…
3688		3990
3689	EV_FREQUENT_CHECK;	3991	EV_FREQUENT_CHECK;
3690	}	3992	}
3691		3993
3692	ev_tstamp	3994	ev_tstamp
3693	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW	3995	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3694	{	3996	{
3695	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3997	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3696	}	3998	}
3697		3999
3698	#if EV_PERIODIC_ENABLE	4000	#if EV_PERIODIC_ENABLE
3699	void noinline	4001	noinline
		4002	void
3700	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4003	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3701	{	4004	{
3702	if (expect_false (ev_is_active (w)))	4005	if (expect_false (ev_is_active (w)))
3703	return;	4006	return;
3704		4007
3705	if (w->reschedule_cb)	4008	if (w->reschedule_cb)
…		…
3724	EV_FREQUENT_CHECK;	4027	EV_FREQUENT_CHECK;
3725		4028
3726	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4029	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3727	}	4030	}
3728		4031
3729	void noinline	4032	noinline
		4033	void
3730	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4034	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3731	{	4035	{
3732	clear_pending (EV_A_ (W)w);	4036	clear_pending (EV_A_ (W)w);
3733	if (expect_false (!ev_is_active (w)))	4037	if (expect_false (!ev_is_active (w)))
3734	return;	4038	return;
3735		4039
…		…
3752	ev_stop (EV_A_ (W)w);	4056	ev_stop (EV_A_ (W)w);
3753		4057
3754	EV_FREQUENT_CHECK;	4058	EV_FREQUENT_CHECK;
3755	}	4059	}
3756		4060
3757	void noinline	4061	noinline
		4062	void
3758	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4063	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3759	{	4064	{
3760	/* TODO: use adjustheap and recalculation */	4065	/* TODO: use adjustheap and recalculation */
3761	ev_periodic_stop (EV_A_ w);	4066	ev_periodic_stop (EV_A_ w);
3762	ev_periodic_start (EV_A_ w);	4067	ev_periodic_start (EV_A_ w);
3763	}	4068	}
…		…
3767	# define SA_RESTART 0	4072	# define SA_RESTART 0
3768	#endif	4073	#endif
3769		4074
3770	#if EV_SIGNAL_ENABLE	4075	#if EV_SIGNAL_ENABLE
3771		4076
3772	void noinline	4077	noinline
		4078	void
3773	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4079	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3774	{	4080	{
3775	if (expect_false (ev_is_active (w)))	4081	if (expect_false (ev_is_active (w)))
3776	return;	4082	return;
3777		4083
3778	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	4084	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3849	}	4155	}
3850		4156
3851	EV_FREQUENT_CHECK;	4157	EV_FREQUENT_CHECK;
3852	}	4158	}
3853		4159
3854	void noinline	4160	noinline
		4161	void
3855	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4162	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3856	{	4163	{
3857	clear_pending (EV_A_ (W)w);	4164	clear_pending (EV_A_ (W)w);
3858	if (expect_false (!ev_is_active (w)))	4165	if (expect_false (!ev_is_active (w)))
3859	return;	4166	return;
3860		4167
…		…
3891	#endif	4198	#endif
3892		4199
3893	#if EV_CHILD_ENABLE	4200	#if EV_CHILD_ENABLE
3894		4201
3895	void	4202	void
3896	ev_child_start (EV_P_ ev_child *w) EV_THROW	4203	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3897	{	4204	{
3898	#if EV_MULTIPLICITY	4205	#if EV_MULTIPLICITY
3899	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	4206	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3900	#endif	4207	#endif
3901	if (expect_false (ev_is_active (w)))	4208	if (expect_false (ev_is_active (w)))
…		…
3908		4215
3909	EV_FREQUENT_CHECK;	4216	EV_FREQUENT_CHECK;
3910	}	4217	}
3911		4218
3912	void	4219	void
3913	ev_child_stop (EV_P_ ev_child *w) EV_THROW	4220	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3914	{	4221	{
3915	clear_pending (EV_A_ (W)w);	4222	clear_pending (EV_A_ (W)w);
3916	if (expect_false (!ev_is_active (w)))	4223	if (expect_false (!ev_is_active (w)))
3917	return;	4224	return;
3918		4225
…		…
3935		4242
3936	#define DEF_STAT_INTERVAL 5.0074891	4243	#define DEF_STAT_INTERVAL 5.0074891
3937	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4244	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3938	#define MIN_STAT_INTERVAL 0.1074891	4245	#define MIN_STAT_INTERVAL 0.1074891
3939		4246
3940	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4247	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3941		4248
3942	#if EV_USE_INOTIFY	4249	#if EV_USE_INOTIFY
3943		4250
3944	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4251	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3945	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4252	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3946		4253
3947	static void noinline	4254	noinline
		4255	static void
3948	infy_add (EV_P_ ev_stat *w)	4256	infy_add (EV_P_ ev_stat *w)
3949	{	4257	{
3950	w->wd = inotify_add_watch (fs_fd, w->path,	4258	w->wd = inotify_add_watch (fs_fd, w->path,
3951	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4259	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3952	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4260	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
4016	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4324	if (ev_is_active (&w->timer)) ev_ref (EV_A);
4017	ev_timer_again (EV_A_ &w->timer);	4325	ev_timer_again (EV_A_ &w->timer);
4018	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4326	if (ev_is_active (&w->timer)) ev_unref (EV_A);
4019	}	4327	}
4020		4328
4021	static void noinline	4329	noinline
		4330	static void
4022	infy_del (EV_P_ ev_stat *w)	4331	infy_del (EV_P_ ev_stat *w)
4023	{	4332	{
4024	int slot;	4333	int slot;
4025	int wd = w->wd;	4334	int wd = w->wd;
4026		4335
…		…
4033		4342
4034	/* remove this watcher, if others are watching it, they will rearm */	4343	/* remove this watcher, if others are watching it, they will rearm */
4035	inotify_rm_watch (fs_fd, wd);	4344	inotify_rm_watch (fs_fd, wd);
4036	}	4345	}
4037		4346
4038	static void noinline	4347	noinline
		4348	static void
4039	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4349	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4040	{	4350	{
4041	if (slot < 0)	4351	if (slot < 0)
4042	/* overflow, need to check for all hash slots */	4352	/* overflow, need to check for all hash slots */
4043	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4353	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4079	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4389	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4080	ofs += sizeof (struct inotify_event) + ev->len;	4390	ofs += sizeof (struct inotify_event) + ev->len;
4081	}	4391	}
4082	}	4392	}
4083		4393
4084	inline_size void ecb_cold	4394	inline_size ecb_cold
		4395	void
4085	ev_check_2625 (EV_P)	4396	ev_check_2625 (EV_P)
4086	{	4397	{
4087	/* kernels < 2.6.25 are borked	4398	/* kernels < 2.6.25 are borked
4088	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4399	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4089	*/	4400	*/
…		…
4179	#else	4490	#else
4180	# define EV_LSTAT(p,b) lstat (p, b)	4491	# define EV_LSTAT(p,b) lstat (p, b)
4181	#endif	4492	#endif
4182		4493
4183	void	4494	void
4184	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW	4495	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4185	{	4496	{
4186	if (lstat (w->path, &w->attr) < 0)	4497	if (lstat (w->path, &w->attr) < 0)
4187	w->attr.st_nlink = 0;	4498	w->attr.st_nlink = 0;
4188	else if (!w->attr.st_nlink)	4499	else if (!w->attr.st_nlink)
4189	w->attr.st_nlink = 1;	4500	w->attr.st_nlink = 1;
4190	}	4501	}
4191		4502
4192	static void noinline	4503	noinline
		4504	static void
4193	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4505	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4194	{	4506	{
4195	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4507	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4196		4508
4197	ev_statdata prev = w->attr;	4509	ev_statdata prev = w->attr;
…		…
4228	ev_feed_event (EV_A_ w, EV_STAT);	4540	ev_feed_event (EV_A_ w, EV_STAT);
4229	}	4541	}
4230	}	4542	}
4231		4543
4232	void	4544	void
4233	ev_stat_start (EV_P_ ev_stat *w) EV_THROW	4545	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4234	{	4546	{
4235	if (expect_false (ev_is_active (w)))	4547	if (expect_false (ev_is_active (w)))
4236	return;	4548	return;
4237		4549
4238	ev_stat_stat (EV_A_ w);	4550	ev_stat_stat (EV_A_ w);
…		…
4259		4571
4260	EV_FREQUENT_CHECK;	4572	EV_FREQUENT_CHECK;
4261	}	4573	}
4262		4574
4263	void	4575	void
4264	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW	4576	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4265	{	4577	{
4266	clear_pending (EV_A_ (W)w);	4578	clear_pending (EV_A_ (W)w);
4267	if (expect_false (!ev_is_active (w)))	4579	if (expect_false (!ev_is_active (w)))
4268	return;	4580	return;
4269		4581
…		…
4285	}	4597	}
4286	#endif	4598	#endif
4287		4599
4288	#if EV_IDLE_ENABLE	4600	#if EV_IDLE_ENABLE
4289	void	4601	void
4290	ev_idle_start (EV_P_ ev_idle *w) EV_THROW	4602	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4291	{	4603	{
4292	if (expect_false (ev_is_active (w)))	4604	if (expect_false (ev_is_active (w)))
4293	return;	4605	return;
4294		4606
4295	pri_adjust (EV_A_ (W)w);	4607	pri_adjust (EV_A_ (W)w);
…		…
4308		4620
4309	EV_FREQUENT_CHECK;	4621	EV_FREQUENT_CHECK;
4310	}	4622	}
4311		4623
4312	void	4624	void
4313	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW	4625	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4314	{	4626	{
4315	clear_pending (EV_A_ (W)w);	4627	clear_pending (EV_A_ (W)w);
4316	if (expect_false (!ev_is_active (w)))	4628	if (expect_false (!ev_is_active (w)))
4317	return;	4629	return;
4318		4630
…		…
4332	}	4644	}
4333	#endif	4645	#endif
4334		4646
4335	#if EV_PREPARE_ENABLE	4647	#if EV_PREPARE_ENABLE
4336	void	4648	void
4337	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW	4649	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4338	{	4650	{
4339	if (expect_false (ev_is_active (w)))	4651	if (expect_false (ev_is_active (w)))
4340	return;	4652	return;
4341		4653
4342	EV_FREQUENT_CHECK;	4654	EV_FREQUENT_CHECK;
…		…
4347		4659
4348	EV_FREQUENT_CHECK;	4660	EV_FREQUENT_CHECK;
4349	}	4661	}
4350		4662
4351	void	4663	void
4352	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW	4664	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4353	{	4665	{
4354	clear_pending (EV_A_ (W)w);	4666	clear_pending (EV_A_ (W)w);
4355	if (expect_false (!ev_is_active (w)))	4667	if (expect_false (!ev_is_active (w)))
4356	return;	4668	return;
4357		4669
…		…
4370	}	4682	}
4371	#endif	4683	#endif
4372		4684
4373	#if EV_CHECK_ENABLE	4685	#if EV_CHECK_ENABLE
4374	void	4686	void
4375	ev_check_start (EV_P_ ev_check *w) EV_THROW	4687	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4376	{	4688	{
4377	if (expect_false (ev_is_active (w)))	4689	if (expect_false (ev_is_active (w)))
4378	return;	4690	return;
4379		4691
4380	EV_FREQUENT_CHECK;	4692	EV_FREQUENT_CHECK;
…		…
4385		4697
4386	EV_FREQUENT_CHECK;	4698	EV_FREQUENT_CHECK;
4387	}	4699	}
4388		4700
4389	void	4701	void
4390	ev_check_stop (EV_P_ ev_check *w) EV_THROW	4702	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4391	{	4703	{
4392	clear_pending (EV_A_ (W)w);	4704	clear_pending (EV_A_ (W)w);
4393	if (expect_false (!ev_is_active (w)))	4705	if (expect_false (!ev_is_active (w)))
4394	return;	4706	return;
4395		4707
…		…
4407	EV_FREQUENT_CHECK;	4719	EV_FREQUENT_CHECK;
4408	}	4720	}
4409	#endif	4721	#endif
4410		4722
4411	#if EV_EMBED_ENABLE	4723	#if EV_EMBED_ENABLE
4412	void noinline	4724	noinline
		4725	void
4413	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4726	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4414	{	4727	{
4415	ev_run (w->other, EVRUN_NOWAIT);	4728	ev_run (w->other, EVRUN_NOWAIT);
4416	}	4729	}
4417		4730
4418	static void	4731	static void
…		…
4466	ev_idle_stop (EV_A_ idle);	4779	ev_idle_stop (EV_A_ idle);
4467	}	4780	}
4468	#endif	4781	#endif
4469		4782
4470	void	4783	void
4471	ev_embed_start (EV_P_ ev_embed *w) EV_THROW	4784	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4472	{	4785	{
4473	if (expect_false (ev_is_active (w)))	4786	if (expect_false (ev_is_active (w)))
4474	return;	4787	return;
4475		4788
4476	{	4789	{
…		…
4497		4810
4498	EV_FREQUENT_CHECK;	4811	EV_FREQUENT_CHECK;
4499	}	4812	}
4500		4813
4501	void	4814	void
4502	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW	4815	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4503	{	4816	{
4504	clear_pending (EV_A_ (W)w);	4817	clear_pending (EV_A_ (W)w);
4505	if (expect_false (!ev_is_active (w)))	4818	if (expect_false (!ev_is_active (w)))
4506	return;	4819	return;
4507		4820
…		…
4517	}	4830	}
4518	#endif	4831	#endif
4519		4832
4520	#if EV_FORK_ENABLE	4833	#if EV_FORK_ENABLE
4521	void	4834	void
4522	ev_fork_start (EV_P_ ev_fork *w) EV_THROW	4835	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4523	{	4836	{
4524	if (expect_false (ev_is_active (w)))	4837	if (expect_false (ev_is_active (w)))
4525	return;	4838	return;
4526		4839
4527	EV_FREQUENT_CHECK;	4840	EV_FREQUENT_CHECK;
…		…
4532		4845
4533	EV_FREQUENT_CHECK;	4846	EV_FREQUENT_CHECK;
4534	}	4847	}
4535		4848
4536	void	4849	void
4537	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW	4850	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4538	{	4851	{
4539	clear_pending (EV_A_ (W)w);	4852	clear_pending (EV_A_ (W)w);
4540	if (expect_false (!ev_is_active (w)))	4853	if (expect_false (!ev_is_active (w)))
4541	return;	4854	return;
4542		4855
…		…
4555	}	4868	}
4556	#endif	4869	#endif
4557		4870
4558	#if EV_CLEANUP_ENABLE	4871	#if EV_CLEANUP_ENABLE
4559	void	4872	void
4560	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW	4873	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4561	{	4874	{
4562	if (expect_false (ev_is_active (w)))	4875	if (expect_false (ev_is_active (w)))
4563	return;	4876	return;
4564		4877
4565	EV_FREQUENT_CHECK;	4878	EV_FREQUENT_CHECK;
…		…
4572	ev_unref (EV_A);	4885	ev_unref (EV_A);
4573	EV_FREQUENT_CHECK;	4886	EV_FREQUENT_CHECK;
4574	}	4887	}
4575		4888
4576	void	4889	void
4577	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW	4890	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4578	{	4891	{
4579	clear_pending (EV_A_ (W)w);	4892	clear_pending (EV_A_ (W)w);
4580	if (expect_false (!ev_is_active (w)))	4893	if (expect_false (!ev_is_active (w)))
4581	return;	4894	return;
4582		4895
…		…
4596	}	4909	}
4597	#endif	4910	#endif
4598		4911
4599	#if EV_ASYNC_ENABLE	4912	#if EV_ASYNC_ENABLE
4600	void	4913	void
4601	ev_async_start (EV_P_ ev_async *w) EV_THROW	4914	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4602	{	4915	{
4603	if (expect_false (ev_is_active (w)))	4916	if (expect_false (ev_is_active (w)))
4604	return;	4917	return;
4605		4918
4606	w->sent = 0;	4919	w->sent = 0;
…		…
4615		4928
4616	EV_FREQUENT_CHECK;	4929	EV_FREQUENT_CHECK;
4617	}	4930	}
4618		4931
4619	void	4932	void
4620	ev_async_stop (EV_P_ ev_async *w) EV_THROW	4933	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4621	{	4934	{
4622	clear_pending (EV_A_ (W)w);	4935	clear_pending (EV_A_ (W)w);
4623	if (expect_false (!ev_is_active (w)))	4936	if (expect_false (!ev_is_active (w)))
4624	return;	4937	return;
4625		4938
…		…
4636		4949
4637	EV_FREQUENT_CHECK;	4950	EV_FREQUENT_CHECK;
4638	}	4951	}
4639		4952
4640	void	4953	void
4641	ev_async_send (EV_P_ ev_async *w) EV_THROW	4954	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4642	{	4955	{
4643	w->sent = 1;	4956	w->sent = 1;
4644	evpipe_write (EV_A_ &async_pending);	4957	evpipe_write (EV_A_ &async_pending);
4645	}	4958	}
4646	#endif	4959	#endif
…		…
4683		4996
4684	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	4997	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4685	}	4998	}
4686		4999
4687	void	5000	void
4688	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW	5001	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4689	{	5002	{
4690	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	5003	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4691		5004
4692	if (expect_false (!once))	5005	if (expect_false (!once))
4693	{	5006	{
…		…
4714	}	5027	}
4715		5028
4716	/*****************************************************************************/	5029	/*****************************************************************************/
4717		5030
4718	#if EV_WALK_ENABLE	5031	#if EV_WALK_ENABLE
4719	void ecb_cold	5032	ecb_cold
		5033	void
4720	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5034	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4721	{	5035	{
4722	int i, j;	5036	int i, j;
4723	ev_watcher_list *wl, *wn;	5037	ev_watcher_list *wl, *wn;
4724		5038
4725	if (types & (EV_IO | EV_EMBED))	5039	if (types & (EV_IO | EV_EMBED))

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