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Comparing libev/ev.c (file contents):
Revision 1.451 by root, Tue Jan 22 05:18:28 2013 UTC vs.
Revision 1.488 by root, Fri Dec 21 06:57:09 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) 2007-2018 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
…		…
241	#elif defined SIGARRAYSIZE	243	#elif defined SIGARRAYSIZE
242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	244	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243	#elif defined _sys_nsig	245	#elif defined _sys_nsig
244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	246	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245	#else	247	#else
246	# error "unable to find value for NSIG, please report"	248	# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247	/* to make it compile regardless, just remove the above line, */
248	/* but consider reporting it, too! :) */
249	# define EV_NSIG 65
250	#endif	249	#endif
251		250
252	#ifndef EV_USE_FLOOR	251	#ifndef EV_USE_FLOOR
253	# define EV_USE_FLOOR 0	252	# define EV_USE_FLOOR 0
254	#endif	253	#endif
255		254
256	#ifndef EV_USE_CLOCK_SYSCALL	255	#ifndef EV_USE_CLOCK_SYSCALL
257	# if __linux && __GLIBC__ >= 2	256	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	257	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259	# else	258	# else
260	# define EV_USE_CLOCK_SYSCALL 0	259	# define EV_USE_CLOCK_SYSCALL 0
		260	# endif
		261	#endif
		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
261	# endif	269	# endif
262	#endif	270	#endif
263		271
264	#ifndef EV_USE_MONOTONIC	272	#ifndef EV_USE_MONOTONIC
265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0	273	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
…		…
355	# define EV_USE_4HEAP EV_FEATURE_DATA	363	# define EV_USE_4HEAP EV_FEATURE_DATA
356	#endif	364	#endif
357		365
358	#ifndef EV_HEAP_CACHE_AT	366	#ifndef EV_HEAP_CACHE_AT
359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	367	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
		368	#endif
		369
		370	#ifdef __ANDROID__
		371	/* supposedly, android doesn't typedef fd_mask */
		372	# undef EV_USE_SELECT
		373	# define EV_USE_SELECT 0
		374	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		375	# undef EV_USE_CLOCK_SYSCALL
		376	# define EV_USE_CLOCK_SYSCALL 0
		377	#endif
		378
		379	/* aix's poll.h seems to cause lots of trouble */
		380	#ifdef _AIX
		381	/* AIX has a completely broken poll.h header */
		382	# undef EV_USE_POLL
		383	# define EV_USE_POLL 0
360	#endif	384	#endif
361		385
362	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	386	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
363	/* which makes programs even slower. might work on other unices, too. */	387	/* which makes programs even slower. might work on other unices, too. */
364	#if EV_USE_CLOCK_SYSCALL	388	#if EV_USE_CLOCK_SYSCALL
…		…
372	# define EV_USE_CLOCK_SYSCALL 0	396	# define EV_USE_CLOCK_SYSCALL 0
373	# endif	397	# endif
374	#endif	398	#endif
375		399
376	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	400	/* this block fixes any misconfiguration where we know we run into trouble otherwise */
377
378	#ifdef _AIX
379	/* AIX has a completely broken poll.h header */
380	# undef EV_USE_POLL
381	# define EV_USE_POLL 0
382	#endif
383		401
384	#ifndef CLOCK_MONOTONIC	402	#ifndef CLOCK_MONOTONIC
385	# undef EV_USE_MONOTONIC	403	# undef EV_USE_MONOTONIC
386	# define EV_USE_MONOTONIC 0	404	# define EV_USE_MONOTONIC 0
387	#endif	405	#endif
…		…
475	/* 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 */
476	/* ECB.H BEGIN */	494	/* ECB.H BEGIN */
477	/*	495	/*
478	* libecb - http://software.schmorp.de/pkg/libecb	496	* libecb - http://software.schmorp.de/pkg/libecb
479	*	497	*
480	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	498	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481	* Copyright (©) 2011 Emanuele Giaquinta	499	* Copyright (©) 2011 Emanuele Giaquinta
482	* All rights reserved.	500	* All rights reserved.
483	*	501	*
484	* 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-
485	* tion, are permitted provided that the following conditions are met:	503	* tion, are permitted provided that the following conditions are met:
…		…
499	* 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;
500	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	518	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	519	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502	* 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
503	* 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.
504	*/	533	*/
505		534
506	#ifndef ECB_H	535	#ifndef ECB_H
507	#define ECB_H	536	#define ECB_H
508		537
509	/* 16 bits major, 16 bits minor */	538	/* 16 bits major, 16 bits minor */
510	#define ECB_VERSION 0x00010002	539	#define ECB_VERSION 0x00010005
511		540
512	#ifdef _WIN32	541	#ifdef _WIN32
513	typedef signed char int8_t;	542	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	543	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	544	typedef signed short int16_t;
…		…
532	typedef uint32_t uintptr_t;	561	typedef uint32_t uintptr_t;
533	typedef int32_t intptr_t;	562	typedef int32_t intptr_t;
534	#endif	563	#endif
535	#else	564	#else
536	#include <inttypes.h>	565	#include <inttypes.h>
537	#if UINTMAX_MAX > 0xffffffffU	566	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
538	#define ECB_PTRSIZE 8	567	#define ECB_PTRSIZE 8
539	#else	568	#else
540	#define ECB_PTRSIZE 4	569	#define ECB_PTRSIZE 4
		570	#endif
		571	#endif
		572
		573	#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
		574	#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
		575
		576	/* work around x32 idiocy by defining proper macros */
		577	#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
		578	#if _ILP32
		579	#define ECB_AMD64_X32 1
		580	#else
		581	#define ECB_AMD64 1
541	#endif	582	#endif
542	#endif	583	#endif
543		584
544	/* many compilers define _GNUC_ to some versions but then only implement	585	/* many compilers define _GNUC_ to some versions but then only implement
545	* what their idiot authors think are the "more important" extensions,	586	* what their idiot authors think are the "more important" extensions,
546	* causing enormous grief in return for some better fake benchmark numbers.	587	* causing enormous grief in return for some better fake benchmark numbers.
547	* or so.	588	* or so.
548	* 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
549	* 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.
550	*/	591	*/
551	#ifndef ECB_GCC_VERSION
552	#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__
553	#define ECB_GCC_VERSION(major,minor) 0	593	#define ECB_GCC_VERSION(major,minor) 0
554	#else	594	#else
555	#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)))
556	#endif	596	#endif
557	#endif
558		597
559	#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)))
560	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	599
561	#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
562	#define ECB_CPP (__cplusplus+0)	612	#define ECB_CPP (__cplusplus+0)
563	#define ECB_CPP11 (__cplusplus >= 201103L)	613	#define ECB_CPP11 (__cplusplus >= 201103L)
		614	#define ECB_CPP14 (__cplusplus >= 201402L)
		615	#define ECB_CPP17 (__cplusplus >= 201703L)
		616
		617	#if ECB_CPP
		618	#define ECB_C 0
		619	#define ECB_STDC_VERSION 0
		620	#else
		621	#define ECB_C 1
		622	#define ECB_STDC_VERSION __STDC_VERSION__
		623	#endif
		624
		625	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		626	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		627	#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
564		628
565	#if ECB_CPP	629	#if ECB_CPP
566	#define ECB_EXTERN_C extern "C"	630	#define ECB_EXTERN_C extern "C"
567	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	631	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
568	#define ECB_EXTERN_C_END }	632	#define ECB_EXTERN_C_END }
…		…
581	#define ECB_NO_SMP 1	645	#define ECB_NO_SMP 1
582	#endif	646	#endif
583		647
584	#if ECB_NO_SMP	648	#if ECB_NO_SMP
585	#define ECB_MEMORY_FENCE do { } while (0)	649	#define ECB_MEMORY_FENCE do { } while (0)
		650	#endif
		651
		652	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
		653	#if __xlC__ && ECB_CPP
		654	#include <builtins.h>
		655	#endif
		656
		657	#if 1400 <= _MSC_VER
		658	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
586	#endif	659	#endif
587		660
588	#ifndef ECB_MEMORY_FENCE	661	#ifndef ECB_MEMORY_FENCE
589	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	662	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
590	#if __i386 || __i386__	663	#if __i386 || __i386__
591	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	664	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
592	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	665	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
593	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	666	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
594	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	667	#elif ECB_GCC_AMD64
595	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	668	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
596	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	669	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
597	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	670	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
598	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	671	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
599	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	672	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		673	#elif defined __ARM_ARCH_2__ \
		674	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
		675	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
		676	|| defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
		677	|| defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
		678	|| defined __ARM_ARCH_5TEJ__
		679	/* should not need any, unless running old code on newer cpu - arm doesn't support that */
600	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	680	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
601	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	681	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		682	|| defined __ARM_ARCH_6T2__
602	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	683	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
603	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \	684	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
604	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	685	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
605	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	686	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
606	#elif __sparc || __sparc__	687	#elif __aarch64__
		688	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
		689	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
607	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")	690	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
608	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	691	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	692	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
610	#elif defined __s390__ || defined __s390x__	693	#elif defined __s390__ || defined __s390x__
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	694	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
612	#elif defined __mips__	695	#elif defined __mips__
		696	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		697	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
613	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	698	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
614	#elif defined __alpha__	699	#elif defined __alpha__
615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")	700	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
616	#elif defined __hppa__	701	#elif defined __hppa__
617	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")	702	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
618	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	703	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
619	#elif defined __ia64__	704	#elif defined __ia64__
620	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")	705	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		706	#elif defined __m68k__
		707	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		708	#elif defined __m88k__
		709	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		710	#elif defined __sh__
		711	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
621	#endif	712	#endif
622	#endif	713	#endif
623	#endif	714	#endif
624		715
625	#ifndef ECB_MEMORY_FENCE	716	#ifndef ECB_MEMORY_FENCE
626	#if ECB_GCC_VERSION(4,7)	717	#if ECB_GCC_VERSION(4,7)
627	/* see comment below (stdatomic.h) about the C11 memory model. */	718	/* see comment below (stdatomic.h) about the C11 memory model. */
628	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	719	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		720	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		721	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
629		722
630	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	723	#elif ECB_CLANG_EXTENSION(c_atomic)
631	* without risking compile time errors with other compilers. We *could*
632	* define our own ecb_clang_has_feature, but I just can't be bothered to work
633	* around this shit time and again.
634	* #elif defined __clang && __has_feature (cxx_atomic)
635	* // see comment below (stdatomic.h) about the C11 memory model.	724	/* see comment below (stdatomic.h) about the C11 memory model. */
636	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	725	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
637	*/	726	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		727	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
638		728
639	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	729	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
640	#define ECB_MEMORY_FENCE __sync_synchronize ()	730	#define ECB_MEMORY_FENCE __sync_synchronize ()
		731	#elif _MSC_VER >= 1500 /* VC++ 2008 */
		732	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		733	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		734	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		735	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		736	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
641	#elif _MSC_VER >= 1400 /* VC++ 2005 */	737	#elif _MSC_VER >= 1400 /* VC++ 2005 */
642	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	738	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
643	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	739	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
644	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	740	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
645	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	741	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
665	/* any fence other than seq_cst, which isn't very efficient for us. */	761	/* any fence other than seq_cst, which isn't very efficient for us. */
666	/* Why that is, we don't know - either the C11 memory model is quite useless */	762	/* Why that is, we don't know - either the C11 memory model is quite useless */
667	/* for most usages, or gcc and clang have a bug */	763	/* for most usages, or gcc and clang have a bug */
668	/* I *currently* lean towards the latter, and inefficiently implement */	764	/* I *currently* lean towards the latter, and inefficiently implement */
669	/* all three of ecb's fences as a seq_cst fence */	765	/* all three of ecb's fences as a seq_cst fence */
		766	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		767	/* for all __atomic_thread_fence's except seq_cst */
670	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	768	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
671	#endif	769	#endif
672	#endif	770	#endif
673		771
674	#ifndef ECB_MEMORY_FENCE	772	#ifndef ECB_MEMORY_FENCE
…		…
697	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	795	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
698	#endif	796	#endif
699		797
700	/*****************************************************************************/	798	/*****************************************************************************/
701		799
702	#if __cplusplus	800	#if ECB_CPP
703	#define ecb_inline static inline	801	#define ecb_inline static inline
704	#elif ECB_GCC_VERSION(2,5)	802	#elif ECB_GCC_VERSION(2,5)
705	#define ecb_inline static __inline__	803	#define ecb_inline static __inline__
706	#elif ECB_C99	804	#elif ECB_C99
707	#define ecb_inline static inline	805	#define ecb_inline static inline
…		…
721		819
722	#define ECB_CONCAT_(a, b) a ## b	820	#define ECB_CONCAT_(a, b) a ## b
723	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	821	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
724	#define ECB_STRINGIFY_(a) # a	822	#define ECB_STRINGIFY_(a) # a
725	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	823	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		824	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
726		825
727	#define ecb_function_ ecb_inline	826	#define ecb_function_ ecb_inline
728		827
729	#if ECB_GCC_VERSION(3,1)	828	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
730	#define ecb_attribute(attrlist) __attribute__(attrlist)	829	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		830	#else
		831	#define ecb_attribute(attrlist)
		832	#endif
		833
		834	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
731	#define ecb_is_constant(expr) __builtin_constant_p (expr)	835	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		836	#else
		837	/* possible C11 impl for integral types
		838	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		839	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		840
		841	#define ecb_is_constant(expr) 0
		842	#endif
		843
		844	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
732	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	845	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		846	#else
		847	#define ecb_expect(expr,value) (expr)
		848	#endif
		849
		850	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
733	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	851	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
734	#else	852	#else
735	#define ecb_attribute(attrlist)
736	#define ecb_is_constant(expr) 0
737	#define ecb_expect(expr,value) (expr)
738	#define ecb_prefetch(addr,rw,locality)	853	#define ecb_prefetch(addr,rw,locality)
739	#endif	854	#endif
740		855
741	/* no emulation for ecb_decltype */	856	/* no emulation for ecb_decltype */
742	#if ECB_GCC_VERSION(4,5)	857	#if ECB_CPP11
		858	// older implementations might have problems with decltype(x)::type, work around it
		859	template<class T> struct ecb_decltype_t { typedef T type; };
743	#define ecb_decltype(x) __decltype(x)	860	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
744	#elif ECB_GCC_VERSION(3,0)	861	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
745	#define ecb_decltype(x) __typeof(x)	862	#define ecb_decltype(x) __typeof__ (x)
746	#endif	863	#endif
747		864
		865	#if _MSC_VER >= 1300
		866	#define ecb_deprecated __declspec (deprecated)
		867	#else
		868	#define ecb_deprecated ecb_attribute ((__deprecated__))
		869	#endif
		870
		871	#if _MSC_VER >= 1500
		872	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		873	#elif ECB_GCC_VERSION(4,5)
		874	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		875	#else
		876	#define ecb_deprecated_message(msg) ecb_deprecated
		877	#endif
		878
		879	#if _MSC_VER >= 1400
		880	#define ecb_noinline __declspec (noinline)
		881	#else
748	#define ecb_noinline ecb_attribute ((__noinline__))	882	#define ecb_noinline ecb_attribute ((__noinline__))
		883	#endif
		884
749	#define ecb_unused ecb_attribute ((__unused__))	885	#define ecb_unused ecb_attribute ((__unused__))
750	#define ecb_const ecb_attribute ((__const__))	886	#define ecb_const ecb_attribute ((__const__))
751	#define ecb_pure ecb_attribute ((__pure__))	887	#define ecb_pure ecb_attribute ((__pure__))
752		888
753	#if ECB_C11	889	#if ECB_C11 || __IBMC_NORETURN
		890	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
754	#define ecb_noreturn _Noreturn	891	#define ecb_noreturn _Noreturn
		892	#elif ECB_CPP11
		893	#define ecb_noreturn [[noreturn]]
		894	#elif _MSC_VER >= 1200
		895	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		896	#define ecb_noreturn __declspec (noreturn)
755	#else	897	#else
756	#define ecb_noreturn ecb_attribute ((__noreturn__))	898	#define ecb_noreturn ecb_attribute ((__noreturn__))
757	#endif	899	#endif
758		900
759	#if ECB_GCC_VERSION(4,3)	901	#if ECB_GCC_VERSION(4,3)
…		…
774	/* for compatibility to the rest of the world */	916	/* for compatibility to the rest of the world */
775	#define ecb_likely(expr) ecb_expect_true (expr)	917	#define ecb_likely(expr) ecb_expect_true (expr)
776	#define ecb_unlikely(expr) ecb_expect_false (expr)	918	#define ecb_unlikely(expr) ecb_expect_false (expr)
777		919
778	/* count trailing zero bits and count # of one bits */	920	/* count trailing zero bits and count # of one bits */
779	#if ECB_GCC_VERSION(3,4)	921	#if ECB_GCC_VERSION(3,4) \
		922	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		923	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		924	&& ECB_CLANG_BUILTIN(__builtin_popcount))
780	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	925	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
781	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	926	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
782	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	927	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
783	#define ecb_ctz32(x) __builtin_ctz (x)	928	#define ecb_ctz32(x) __builtin_ctz (x)
784	#define ecb_ctz64(x) __builtin_ctzll (x)	929	#define ecb_ctz64(x) __builtin_ctzll (x)
785	#define ecb_popcount32(x) __builtin_popcount (x)	930	#define ecb_popcount32(x) __builtin_popcount (x)
786	/* no popcountll */	931	/* no popcountll */
787	#else	932	#else
788	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	933	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
789	ecb_function_ int	934	ecb_function_ ecb_const int
790	ecb_ctz32 (uint32_t x)	935	ecb_ctz32 (uint32_t x)
791	{	936	{
		937	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		938	unsigned long r;
		939	_BitScanForward (&r, x);
		940	return (int)r;
		941	#else
792	int r = 0;	942	int r = 0;
793		943
794	x &= ~x + 1; /* this isolates the lowest bit */	944	x &= ~x + 1; /* this isolates the lowest bit */
795		945
796	#if ECB_branchless_on_i386	946	#if ECB_branchless_on_i386
…		…
806	if (x & 0xff00ff00) r += 8;	956	if (x & 0xff00ff00) r += 8;
807	if (x & 0xffff0000) r += 16;	957	if (x & 0xffff0000) r += 16;
808	#endif	958	#endif
809		959
810	return r;	960	return r;
		961	#endif
811	}	962	}
812		963
813	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	964	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
814	ecb_function_ int	965	ecb_function_ ecb_const int
815	ecb_ctz64 (uint64_t x)	966	ecb_ctz64 (uint64_t x)
816	{	967	{
		968	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		969	unsigned long r;
		970	_BitScanForward64 (&r, x);
		971	return (int)r;
		972	#else
817	int shift = x & 0xffffffffU ? 0 : 32;	973	int shift = x & 0xffffffff ? 0 : 32;
818	return ecb_ctz32 (x >> shift) + shift;	974	return ecb_ctz32 (x >> shift) + shift;
		975	#endif
819	}	976	}
820		977
821	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	978	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
822	ecb_function_ int	979	ecb_function_ ecb_const int
823	ecb_popcount32 (uint32_t x)	980	ecb_popcount32 (uint32_t x)
824	{	981	{
825	x -= (x >> 1) & 0x55555555;	982	x -= (x >> 1) & 0x55555555;
826	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	983	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
827	x = ((x >> 4) + x) & 0x0f0f0f0f;	984	x = ((x >> 4) + x) & 0x0f0f0f0f;
828	x *= 0x01010101;	985	x *= 0x01010101;
829		986
830	return x >> 24;	987	return x >> 24;
831	}	988	}
832		989
833	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	990	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
834	ecb_function_ int ecb_ld32 (uint32_t x)	991	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
835	{	992	{
		993	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		994	unsigned long r;
		995	_BitScanReverse (&r, x);
		996	return (int)r;
		997	#else
836	int r = 0;	998	int r = 0;
837		999
838	if (x >> 16) { x >>= 16; r += 16; }	1000	if (x >> 16) { x >>= 16; r += 16; }
839	if (x >> 8) { x >>= 8; r += 8; }	1001	if (x >> 8) { x >>= 8; r += 8; }
840	if (x >> 4) { x >>= 4; r += 4; }	1002	if (x >> 4) { x >>= 4; r += 4; }
841	if (x >> 2) { x >>= 2; r += 2; }	1003	if (x >> 2) { x >>= 2; r += 2; }
842	if (x >> 1) { r += 1; }	1004	if (x >> 1) { r += 1; }
843		1005
844	return r;	1006	return r;
		1007	#endif
845	}	1008	}
846		1009
847	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1010	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
848	ecb_function_ int ecb_ld64 (uint64_t x)	1011	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
849	{	1012	{
		1013	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1014	unsigned long r;
		1015	_BitScanReverse64 (&r, x);
		1016	return (int)r;
		1017	#else
850	int r = 0;	1018	int r = 0;
851		1019
852	if (x >> 32) { x >>= 32; r += 32; }	1020	if (x >> 32) { x >>= 32; r += 32; }
853		1021
854	return r + ecb_ld32 (x);	1022	return r + ecb_ld32 (x);
		1023	#endif
855	}	1024	}
856	#endif	1025	#endif
857		1026
858	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	1027	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
859	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	1028	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
860	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	1029	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
861	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	1030	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
862		1031
863	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1032	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
864	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1033	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
865	{	1034	{
866	return ( (x * 0x0802U & 0x22110U)	1035	return ( (x * 0x0802U & 0x22110U)
867	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1036	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
868	}	1037	}
869		1038
870	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1039	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
871	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1040	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
872	{	1041	{
873	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1042	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
874	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1043	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
875	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1044	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
876	x = ( x >> 8 ) | ( x << 8);	1045	x = ( x >> 8 ) | ( x << 8);
877		1046
878	return x;	1047	return x;
879	}	1048	}
880		1049
881	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1050	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
882	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1051	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
883	{	1052	{
884	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1053	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
885	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1054	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
886	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1055	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
887	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1056	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
890	return x;	1059	return x;
891	}	1060	}
892		1061
893	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1062	/* popcount64 is only available on 64 bit cpus as gcc builtin */
894	/* so for this version we are lazy */	1063	/* so for this version we are lazy */
895	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1064	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
896	ecb_function_ int	1065	ecb_function_ ecb_const int
897	ecb_popcount64 (uint64_t x)	1066	ecb_popcount64 (uint64_t x)
898	{	1067	{
899	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1068	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
900	}	1069	}
901		1070
902	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1071	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
903	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1072	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
904	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1073	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
905	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1074	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
906	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1075	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
907	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1076	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
908	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1077	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
909	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1078	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
910		1079
911	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1080	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
912	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }	1081	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
913	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }	1082	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
914	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }	1083	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
915	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1084	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
916	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1085	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
917	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1086	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
918	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1087	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
919		1088
920	#if ECB_GCC_VERSION(4,3)	1089	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
		1090	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
		1091	#define ecb_bswap16(x) __builtin_bswap16 (x)
		1092	#else
921	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1093	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1094	#endif
922	#define ecb_bswap32(x) __builtin_bswap32 (x)	1095	#define ecb_bswap32(x) __builtin_bswap32 (x)
923	#define ecb_bswap64(x) __builtin_bswap64 (x)	1096	#define ecb_bswap64(x) __builtin_bswap64 (x)
		1097	#elif _MSC_VER
		1098	#include <stdlib.h>
		1099	#define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
		1100	#define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
		1101	#define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
924	#else	1102	#else
925	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1103	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
926	ecb_function_ uint16_t	1104	ecb_function_ ecb_const uint16_t
927	ecb_bswap16 (uint16_t x)	1105	ecb_bswap16 (uint16_t x)
928	{	1106	{
929	return ecb_rotl16 (x, 8);	1107	return ecb_rotl16 (x, 8);
930	}	1108	}
931		1109
932	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1110	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
933	ecb_function_ uint32_t	1111	ecb_function_ ecb_const uint32_t
934	ecb_bswap32 (uint32_t x)	1112	ecb_bswap32 (uint32_t x)
935	{	1113	{
936	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1114	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
937	}	1115	}
938		1116
939	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1117	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
940	ecb_function_ uint64_t	1118	ecb_function_ ecb_const uint64_t
941	ecb_bswap64 (uint64_t x)	1119	ecb_bswap64 (uint64_t x)
942	{	1120	{
943	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1121	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
944	}	1122	}
945	#endif	1123	#endif
946		1124
947	#if ECB_GCC_VERSION(4,5)	1125	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
948	#define ecb_unreachable() __builtin_unreachable ()	1126	#define ecb_unreachable() __builtin_unreachable ()
949	#else	1127	#else
950	/* this seems to work fine, but gcc always emits a warning for it :/ */	1128	/* this seems to work fine, but gcc always emits a warning for it :/ */
951	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1129	ecb_inline ecb_noreturn void ecb_unreachable (void);
952	ecb_inline void ecb_unreachable (void) { }	1130	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
953	#endif	1131	#endif
954		1132
955	/* try to tell the compiler that some condition is definitely true */	1133	/* try to tell the compiler that some condition is definitely true */
956	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1134	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
957		1135
958	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1136	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
959	ecb_inline unsigned char	1137	ecb_inline ecb_const uint32_t
960	ecb_byteorder_helper (void)	1138	ecb_byteorder_helper (void)
961	{	1139	{
962	/* the union code still generates code under pressure in gcc, */	1140	/* the union code still generates code under pressure in gcc, */
963	/* but less than using pointers, and always seems to */	1141	/* but less than using pointers, and always seems to */
964	/* successfully return a constant. */	1142	/* successfully return a constant. */
965	/* the reason why we have this horrible preprocessor mess */	1143	/* the reason why we have this horrible preprocessor mess */
966	/* is to avoid it in all cases, at least on common architectures */	1144	/* is to avoid it in all cases, at least on common architectures */
967	/* or when using a recent enough gcc version (>= 4.6) */	1145	/* or when using a recent enough gcc version (>= 4.6) */
968	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
969	return 0x44;
970	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__	1146	#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
		1147	|| ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
		1148	#define ECB_LITTLE_ENDIAN 1
971	return 0x44;	1149	return 0x44332211;
972	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__	1150	#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
		1151	|| ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
		1152	#define ECB_BIG_ENDIAN 1
973	return 0x11;	1153	return 0x11223344;
974	#else	1154	#else
975	union	1155	union
976	{	1156	{
		1157	uint8_t c[4];
977	uint32_t i;	1158	uint32_t u;
978	uint8_t c;
979	} u = { 0x11223344 };	1159	} u = { 0x11, 0x22, 0x33, 0x44 };
980	return u.c;	1160	return u.u;
981	#endif	1161	#endif
982	}	1162	}
983		1163
984	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1164	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
985	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1165	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
986	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1166	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
987	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1167	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
988		1168
989	#if ECB_GCC_VERSION(3,0) || ECB_C99	1169	#if ECB_GCC_VERSION(3,0) || ECB_C99
990	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1170	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
991	#else	1171	#else
992	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1172	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
993	#endif	1173	#endif
994		1174
995	#if __cplusplus	1175	#if ECB_CPP
996	template<typename T>	1176	template<typename T>
997	static inline T ecb_div_rd (T val, T div)	1177	static inline T ecb_div_rd (T val, T div)
998	{	1178	{
999	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1179	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1000	}	1180	}
…		…
1017	}	1197	}
1018	#else	1198	#else
1019	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1199	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1020	#endif	1200	#endif
1021		1201
		1202	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1203	ecb_function_ ecb_const uint32_t
		1204	ecb_binary16_to_binary32 (uint32_t x)
		1205	{
		1206	unsigned int s = (x & 0x8000) << (31 - 15);
		1207	int e = (x >> 10) & 0x001f;
		1208	unsigned int m = x & 0x03ff;
		1209
		1210	if (ecb_expect_false (e == 31))
		1211	/* infinity or NaN */
		1212	e = 255 - (127 - 15);
		1213	else if (ecb_expect_false (!e))
		1214	{
		1215	if (ecb_expect_true (!m))
		1216	/* zero, handled by code below by forcing e to 0 */
		1217	e = 0 - (127 - 15);
		1218	else
		1219	{
		1220	/* subnormal, renormalise */
		1221	unsigned int s = 10 - ecb_ld32 (m);
		1222
		1223	m = (m << s) & 0x3ff; /* mask implicit bit */
		1224	e -= s - 1;
		1225	}
		1226	}
		1227
		1228	/* e and m now are normalised, or zero, (or inf or nan) */
		1229	e += 127 - 15;
		1230
		1231	return s | (e << 23) | (m << (23 - 10));
		1232	}
		1233
		1234	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1235	ecb_function_ ecb_const uint16_t
		1236	ecb_binary32_to_binary16 (uint32_t x)
		1237	{
		1238	unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
		1239	unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
		1240	unsigned int m = x & 0x007fffff;
		1241
		1242	x &= 0x7fffffff;
		1243
		1244	/* if it's within range of binary16 normals, use fast path */
		1245	if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
		1246	{
		1247	/* mantissa round-to-even */
		1248	m += 0x00000fff + ((m >> (23 - 10)) & 1);
		1249
		1250	/* handle overflow */
		1251	if (ecb_expect_false (m >= 0x00800000))
		1252	{
		1253	m >>= 1;
		1254	e += 1;
		1255	}
		1256
		1257	return s | (e << 10) | (m >> (23 - 10));
		1258	}
		1259
		1260	/* handle large numbers and infinity */
		1261	if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
		1262	return s | 0x7c00;
		1263
		1264	/* handle zero, subnormals and small numbers */
		1265	if (ecb_expect_true (x < 0x38800000))
		1266	{
		1267	/* zero */
		1268	if (ecb_expect_true (!x))
		1269	return s;
		1270
		1271	/* handle subnormals */
		1272
		1273	/* too small, will be zero */
		1274	if (e < (14 - 24)) /* might not be sharp, but is good enough */
		1275	return s;
		1276
		1277	m |= 0x00800000; /* make implicit bit explicit */
		1278
		1279	/* very tricky - we need to round to the nearest e (+10) bit value */
		1280	{
		1281	unsigned int bits = 14 - e;
		1282	unsigned int half = (1 << (bits - 1)) - 1;
		1283	unsigned int even = (m >> bits) & 1;
		1284
		1285	/* if this overflows, we will end up with a normalised number */
		1286	m = (m + half + even) >> bits;
		1287	}
		1288
		1289	return s | m;
		1290	}
		1291
		1292	/* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
		1293	m >>= 13;
		1294
		1295	return s | 0x7c00 | m | !m;
		1296	}
		1297
1022	/*******************************************************************************/	1298	/*******************************************************************************/
1023	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1299	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1024		1300
1025	/* basically, everything uses "ieee pure-endian" floating point numbers */	1301	/* basically, everything uses "ieee pure-endian" floating point numbers */
1026	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1302	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1027	#if 0 \	1303	#if 0 \
1028	|| __i386 || __i386__ \	1304	|| __i386 || __i386__ \
1029	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1305	|| ECB_GCC_AMD64 \
1030	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1306	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1031	|| defined __arm__ && defined __ARM_EABI__ \
1032	|| defined __s390__ || defined __s390x__ \	1307	|| defined __s390__ || defined __s390x__ \
1033	|| defined __mips__ \	1308	|| defined __mips__ \
1034	|| defined __alpha__ \	1309	|| defined __alpha__ \
1035	|| defined __hppa__ \	1310	|| defined __hppa__ \
1036	|| defined __ia64__ \	1311	|| defined __ia64__ \
		1312	|| defined __m68k__ \
		1313	|| defined __m88k__ \
		1314	|| defined __sh__ \
1037	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64	1315	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1316	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1317	|| defined __aarch64__
1038	#define ECB_STDFP 1	1318	#define ECB_STDFP 1
1039	#include <string.h> /* for memcpy */	1319	#include <string.h> /* for memcpy */
1040	#else	1320	#else
1041	#define ECB_STDFP 0	1321	#define ECB_STDFP 0
1042	#include <math.h> /* for frexp*, ldexp* */
1043	#endif	1322	#endif
1044		1323
1045	#ifndef ECB_NO_LIBM	1324	#ifndef ECB_NO_LIBM
1046		1325
		1326	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1327
		1328	/* only the oldest of old doesn't have this one. solaris. */
		1329	#ifdef INFINITY
		1330	#define ECB_INFINITY INFINITY
		1331	#else
		1332	#define ECB_INFINITY HUGE_VAL
		1333	#endif
		1334
		1335	#ifdef NAN
		1336	#define ECB_NAN NAN
		1337	#else
		1338	#define ECB_NAN ECB_INFINITY
		1339	#endif
		1340
		1341	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
		1342	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
		1343	#define ecb_frexpf(x,e) frexpf ((x), (e))
		1344	#else
		1345	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
		1346	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
		1347	#endif
		1348
1047	/* convert a float to ieee single/binary32 */	1349	/* convert a float to ieee single/binary32 */
1048	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1350	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1049	ecb_function_ uint32_t	1351	ecb_function_ ecb_const uint32_t
1050	ecb_float_to_binary32 (float x)	1352	ecb_float_to_binary32 (float x)
1051	{	1353	{
1052	uint32_t r;	1354	uint32_t r;
1053		1355
1054	#if ECB_STDFP	1356	#if ECB_STDFP
…		…
1061	if (x == 0e0f ) return 0x00000000U;	1363	if (x == 0e0f ) return 0x00000000U;
1062	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1364	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1063	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1365	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1064	if (x != x ) return 0x7fbfffffU;	1366	if (x != x ) return 0x7fbfffffU;
1065		1367
1066	m = frexpf (x, &e) * 0x1000000U;	1368	m = ecb_frexpf (x, &e) * 0x1000000U;
1067		1369
1068	r = m & 0x80000000U;	1370	r = m & 0x80000000U;
1069		1371
1070	if (r)	1372	if (r)
1071	m = -m;	1373	m = -m;
…		…
1083		1385
1084	return r;	1386	return r;
1085	}	1387	}
1086		1388
1087	/* converts an ieee single/binary32 to a float */	1389	/* converts an ieee single/binary32 to a float */
1088	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1390	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1089	ecb_function_ float	1391	ecb_function_ ecb_const float
1090	ecb_binary32_to_float (uint32_t x)	1392	ecb_binary32_to_float (uint32_t x)
1091	{	1393	{
1092	float r;	1394	float r;
1093		1395
1094	#if ECB_STDFP	1396	#if ECB_STDFP
…		…
1104	x |= 0x800000U;	1406	x |= 0x800000U;
1105	else	1407	else
1106	e = 1;	1408	e = 1;
1107		1409
1108	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */	1410	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1109	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1411	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1110		1412
1111	r = neg ? -r : r;	1413	r = neg ? -r : r;
1112	#endif	1414	#endif
1113		1415
1114	return r;	1416	return r;
1115	}	1417	}
1116		1418
1117	/* convert a double to ieee double/binary64 */	1419	/* convert a double to ieee double/binary64 */
1118	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1420	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1119	ecb_function_ uint64_t	1421	ecb_function_ ecb_const uint64_t
1120	ecb_double_to_binary64 (double x)	1422	ecb_double_to_binary64 (double x)
1121	{	1423	{
1122	uint64_t r;	1424	uint64_t r;
1123		1425
1124	#if ECB_STDFP	1426	#if ECB_STDFP
…		…
1153		1455
1154	return r;	1456	return r;
1155	}	1457	}
1156		1458
1157	/* converts an ieee double/binary64 to a double */	1459	/* converts an ieee double/binary64 to a double */
1158	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1460	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1159	ecb_function_ double	1461	ecb_function_ ecb_const double
1160	ecb_binary64_to_double (uint64_t x)	1462	ecb_binary64_to_double (uint64_t x)
1161	{	1463	{
1162	double r;	1464	double r;
1163		1465
1164	#if ECB_STDFP	1466	#if ECB_STDFP
…		…
1180		1482
1181	r = neg ? -r : r;	1483	r = neg ? -r : r;
1182	#endif	1484	#endif
1183		1485
1184	return r;	1486	return r;
		1487	}
		1488
		1489	/* convert a float to ieee half/binary16 */
		1490	ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
		1491	ecb_function_ ecb_const uint16_t
		1492	ecb_float_to_binary16 (float x)
		1493	{
		1494	return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
		1495	}
		1496
		1497	/* convert an ieee half/binary16 to float */
		1498	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1499	ecb_function_ ecb_const float
		1500	ecb_binary16_to_float (uint16_t x)
		1501	{
		1502	return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1185	}	1503	}
1186		1504
1187	#endif	1505	#endif
1188		1506
1189	#endif	1507	#endif
…		…
1214	#define inline_size ecb_inline	1532	#define inline_size ecb_inline
1215		1533
1216	#if EV_FEATURE_CODE	1534	#if EV_FEATURE_CODE
1217	# define inline_speed ecb_inline	1535	# define inline_speed ecb_inline
1218	#else	1536	#else
1219	# define inline_speed static noinline	1537	# define inline_speed noinline static
1220	#endif	1538	#endif
1221		1539
1222	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1540	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1223		1541
1224	#if EV_MINPRI == EV_MAXPRI	1542	#if EV_MINPRI == EV_MAXPRI
…		…
1271	#else	1589	#else
1272		1590
1273	#include <float.h>	1591	#include <float.h>
1274		1592
1275	/* a floor() replacement function, should be independent of ev_tstamp type */	1593	/* a floor() replacement function, should be independent of ev_tstamp type */
		1594	noinline
1276	static ev_tstamp noinline	1595	static ev_tstamp
1277	ev_floor (ev_tstamp v)	1596	ev_floor (ev_tstamp v)
1278	{	1597	{
1279	/* the choice of shift factor is not terribly important */	1598	/* the choice of shift factor is not terribly important */
1280	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1599	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1281	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1600	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
…		…
1313		1632
1314	#ifdef __linux	1633	#ifdef __linux
1315	# include <sys/utsname.h>	1634	# include <sys/utsname.h>
1316	#endif	1635	#endif
1317		1636
1318	static unsigned int noinline ecb_cold	1637	noinline ecb_cold
		1638	static unsigned int
1319	ev_linux_version (void)	1639	ev_linux_version (void)
1320	{	1640	{
1321	#ifdef __linux	1641	#ifdef __linux
1322	unsigned int v = 0;	1642	unsigned int v = 0;
1323	struct utsname buf;	1643	struct utsname buf;
…		…
1352	}	1672	}
1353		1673
1354	/*****************************************************************************/	1674	/*****************************************************************************/
1355		1675
1356	#if EV_AVOID_STDIO	1676	#if EV_AVOID_STDIO
1357	static void noinline ecb_cold	1677	noinline ecb_cold
		1678	static void
1358	ev_printerr (const char *msg)	1679	ev_printerr (const char *msg)
1359	{	1680	{
1360	write (STDERR_FILENO, msg, strlen (msg));	1681	write (STDERR_FILENO, msg, strlen (msg));
1361	}	1682	}
1362	#endif	1683	#endif
1363		1684
1364	static void (*syserr_cb)(const char *msg) EV_THROW;	1685	static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1365		1686
1366	void ecb_cold	1687	ecb_cold
		1688	void
1367	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1689	ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1368	{	1690	{
1369	syserr_cb = cb;	1691	syserr_cb = cb;
1370	}	1692	}
1371		1693
1372	static void noinline ecb_cold	1694	noinline ecb_cold
		1695	static void
1373	ev_syserr (const char *msg)	1696	ev_syserr (const char *msg)
1374	{	1697	{
1375	if (!msg)	1698	if (!msg)
1376	msg = "(libev) system error";	1699	msg = "(libev) system error";
1377		1700
…		…
1390	abort ();	1713	abort ();
1391	}	1714	}
1392	}	1715	}
1393		1716
1394	static void *	1717	static void *
1395	ev_realloc_emul (void *ptr, long size) EV_THROW	1718	ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1396	{	1719	{
1397	/* some systems, notably openbsd and darwin, fail to properly	1720	/* some systems, notably openbsd and darwin, fail to properly
1398	* implement realloc (x, 0) (as required by both ansi c-89 and	1721	* implement realloc (x, 0) (as required by both ansi c-89 and
1399	* the single unix specification, so work around them here.	1722	* the single unix specification, so work around them here.
1400	* recently, also (at least) fedora and debian started breaking it,	1723	* recently, also (at least) fedora and debian started breaking it,
…		…
1406		1729
1407	free (ptr);	1730	free (ptr);
1408	return 0;	1731	return 0;
1409	}	1732	}
1410		1733
1411	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1734	static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1412		1735
1413	void ecb_cold	1736	ecb_cold
		1737	void
1414	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	1738	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1415	{	1739	{
1416	alloc = cb;	1740	alloc = cb;
1417	}	1741	}
1418		1742
1419	inline_speed void *	1743	inline_speed void *
…		…
1536		1860
1537	/*****************************************************************************/	1861	/*****************************************************************************/
1538		1862
1539	#ifndef EV_HAVE_EV_TIME	1863	#ifndef EV_HAVE_EV_TIME
1540	ev_tstamp	1864	ev_tstamp
1541	ev_time (void) EV_THROW	1865	ev_time (void) EV_NOEXCEPT
1542	{	1866	{
1543	#if EV_USE_REALTIME	1867	#if EV_USE_REALTIME
1544	if (expect_true (have_realtime))	1868	if (expect_true (have_realtime))
1545	{	1869	{
1546	struct timespec ts;	1870	struct timespec ts;
…		…
1570	return ev_time ();	1894	return ev_time ();
1571	}	1895	}
1572		1896
1573	#if EV_MULTIPLICITY	1897	#if EV_MULTIPLICITY
1574	ev_tstamp	1898	ev_tstamp
1575	ev_now (EV_P) EV_THROW	1899	ev_now (EV_P) EV_NOEXCEPT
1576	{	1900	{
1577	return ev_rt_now;	1901	return ev_rt_now;
1578	}	1902	}
1579	#endif	1903	#endif
1580		1904
1581	void	1905	void
1582	ev_sleep (ev_tstamp delay) EV_THROW	1906	ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1583	{	1907	{
1584	if (delay > 0.)	1908	if (delay > 0.)
1585	{	1909	{
1586	#if EV_USE_NANOSLEEP	1910	#if EV_USE_NANOSLEEP
1587	struct timespec ts;	1911	struct timespec ts;
1588		1912
1589	EV_TS_SET (ts, delay);	1913	EV_TS_SET (ts, delay);
1590	nanosleep (&ts, 0);	1914	nanosleep (&ts, 0);
1591	#elif defined _WIN32	1915	#elif defined _WIN32
		1916	/* maybe this should round up, as ms is very low resolution */
		1917	/* compared to select (µs) or nanosleep (ns) */
1592	Sleep ((unsigned long)(delay * 1e3));	1918	Sleep ((unsigned long)(delay * 1e3));
1593	#else	1919	#else
1594	struct timeval tv;	1920	struct timeval tv;
1595		1921
1596	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1922	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1627	}	1953	}
1628		1954
1629	return ncur;	1955	return ncur;
1630	}	1956	}
1631		1957
1632	static void * noinline ecb_cold	1958	noinline ecb_cold
		1959	static void *
1633	array_realloc (int elem, void *base, int *cur, int cnt)	1960	array_realloc (int elem, void *base, int *cur, int cnt)
1634	{	1961	{
1635	*cur = array_nextsize (elem, *cur, cnt);	1962	*cur = array_nextsize (elem, *cur, cnt);
1636	return ev_realloc (base, elem * *cur);	1963	return ev_realloc (base, elem * *cur);
1637	}	1964	}
…		…
1640	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1967	memset ((void *)(base), 0, sizeof (*(base)) * (count))
1641		1968
1642	#define array_needsize(type,base,cur,cnt,init) \	1969	#define array_needsize(type,base,cur,cnt,init) \
1643	if (expect_false ((cnt) > (cur))) \	1970	if (expect_false ((cnt) > (cur))) \
1644	{ \	1971	{ \
1645	int ecb_unused ocur_ = (cur); \	1972	ecb_unused int ocur_ = (cur); \
1646	(base) = (type *)array_realloc \	1973	(base) = (type *)array_realloc \
1647	(sizeof (type), (base), &(cur), (cnt)); \	1974	(sizeof (type), (base), &(cur), (cnt)); \
1648	init ((base) + (ocur_), (cur) - ocur_); \	1975	init ((base) + (ocur_), (cur) - ocur_); \
1649	}	1976	}
1650		1977
…		…
1662	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	1989	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1663		1990
1664	/*****************************************************************************/	1991	/*****************************************************************************/
1665		1992
1666	/* dummy callback for pending events */	1993	/* dummy callback for pending events */
1667	static void noinline	1994	noinline
		1995	static void
1668	pendingcb (EV_P_ ev_prepare *w, int revents)	1996	pendingcb (EV_P_ ev_prepare *w, int revents)
1669	{	1997	{
1670	}	1998	}
1671		1999
1672	void noinline	2000	noinline
		2001	void
1673	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	2002	ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1674	{	2003	{
1675	W w_ = (W)w;	2004	W w_ = (W)w;
1676	int pri = ABSPRI (w_);	2005	int pri = ABSPRI (w_);
1677		2006
1678	if (expect_false (w_->pending))	2007	if (expect_false (w_->pending))
…		…
1739	if (expect_true (!anfd->reify))	2068	if (expect_true (!anfd->reify))
1740	fd_event_nocheck (EV_A_ fd, revents);	2069	fd_event_nocheck (EV_A_ fd, revents);
1741	}	2070	}
1742		2071
1743	void	2072	void
1744	ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW	2073	ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1745	{	2074	{
1746	if (fd >= 0 && fd < anfdmax)	2075	if (fd >= 0 && fd < anfdmax)
1747	fd_event_nocheck (EV_A_ fd, revents);	2076	fd_event_nocheck (EV_A_ fd, revents);
1748	}	2077	}
1749		2078
…		…
1807		2136
1808	fdchangecnt = 0;	2137	fdchangecnt = 0;
1809	}	2138	}
1810		2139
1811	/* something about the given fd changed */	2140	/* something about the given fd changed */
1812	inline_size void	2141	inline_size
		2142	void
1813	fd_change (EV_P_ int fd, int flags)	2143	fd_change (EV_P_ int fd, int flags)
1814	{	2144	{
1815	unsigned char reify = anfds [fd].reify;	2145	unsigned char reify = anfds [fd].reify;
1816	anfds [fd].reify |= flags;	2146	anfds [fd].reify |= flags;
1817		2147
…		…
1822	fdchanges [fdchangecnt - 1] = fd;	2152	fdchanges [fdchangecnt - 1] = fd;
1823	}	2153	}
1824	}	2154	}
1825		2155
1826	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2156	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1827	inline_speed void ecb_cold	2157	inline_speed ecb_cold void
1828	fd_kill (EV_P_ int fd)	2158	fd_kill (EV_P_ int fd)
1829	{	2159	{
1830	ev_io *w;	2160	ev_io *w;
1831		2161
1832	while ((w = (ev_io *)anfds [fd].head))	2162	while ((w = (ev_io *)anfds [fd].head))
…		…
1835	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	2165	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1836	}	2166	}
1837	}	2167	}
1838		2168
1839	/* check whether the given fd is actually valid, for error recovery */	2169	/* check whether the given fd is actually valid, for error recovery */
1840	inline_size int ecb_cold	2170	inline_size ecb_cold int
1841	fd_valid (int fd)	2171	fd_valid (int fd)
1842	{	2172	{
1843	#ifdef _WIN32	2173	#ifdef _WIN32
1844	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2174	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1845	#else	2175	#else
1846	return fcntl (fd, F_GETFD) != -1;	2176	return fcntl (fd, F_GETFD) != -1;
1847	#endif	2177	#endif
1848	}	2178	}
1849		2179
1850	/* called on EBADF to verify fds */	2180	/* called on EBADF to verify fds */
1851	static void noinline ecb_cold	2181	noinline ecb_cold
		2182	static void
1852	fd_ebadf (EV_P)	2183	fd_ebadf (EV_P)
1853	{	2184	{
1854	int fd;	2185	int fd;
1855		2186
1856	for (fd = 0; fd < anfdmax; ++fd)	2187	for (fd = 0; fd < anfdmax; ++fd)
…		…
1858	if (!fd_valid (fd) && errno == EBADF)	2189	if (!fd_valid (fd) && errno == EBADF)
1859	fd_kill (EV_A_ fd);	2190	fd_kill (EV_A_ fd);
1860	}	2191	}
1861		2192
1862	/* called on ENOMEM in select/poll to kill some fds and retry */	2193	/* called on ENOMEM in select/poll to kill some fds and retry */
1863	static void noinline ecb_cold	2194	noinline ecb_cold
		2195	static void
1864	fd_enomem (EV_P)	2196	fd_enomem (EV_P)
1865	{	2197	{
1866	int fd;	2198	int fd;
1867		2199
1868	for (fd = anfdmax; fd--; )	2200	for (fd = anfdmax; fd--; )
…		…
1872	break;	2204	break;
1873	}	2205	}
1874	}	2206	}
1875		2207
1876	/* usually called after fork if backend needs to re-arm all fds from scratch */	2208	/* usually called after fork if backend needs to re-arm all fds from scratch */
1877	static void noinline	2209	noinline
		2210	static void
1878	fd_rearm_all (EV_P)	2211	fd_rearm_all (EV_P)
1879	{	2212	{
1880	int fd;	2213	int fd;
1881		2214
1882	for (fd = 0; fd < anfdmax; ++fd)	2215	for (fd = 0; fd < anfdmax; ++fd)
…		…
2063		2396
2064	/*****************************************************************************/	2397	/*****************************************************************************/
2065		2398
2066	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2399	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2067		2400
2068	static void noinline ecb_cold	2401	noinline ecb_cold
		2402	static void
2069	evpipe_init (EV_P)	2403	evpipe_init (EV_P)
2070	{	2404	{
2071	if (!ev_is_active (&pipe_w))	2405	if (!ev_is_active (&pipe_w))
2072	{	2406	{
2073	int fds [2];	2407	int fds [2];
…		…
2084	while (pipe (fds))	2418	while (pipe (fds))
2085	ev_syserr ("(libev) error creating signal/async pipe");	2419	ev_syserr ("(libev) error creating signal/async pipe");
2086		2420
2087	fd_intern (fds [0]);	2421	fd_intern (fds [0]);
2088	}	2422	}
2089
2090	fd_intern (fds [1]);
2091		2423
2092	evpipe [0] = fds [0];	2424	evpipe [0] = fds [0];
2093		2425
2094	if (evpipe [1] < 0)	2426	if (evpipe [1] < 0)
2095	evpipe [1] = fds [1]; /* first call, set write fd */	2427	evpipe [1] = fds [1]; /* first call, set write fd */
…		…
2102		2434
2103	dup2 (fds [1], evpipe [1]);	2435	dup2 (fds [1], evpipe [1]);
2104	close (fds [1]);	2436	close (fds [1]);
2105	}	2437	}
2106		2438
		2439	fd_intern (evpipe [1]);
		2440
2107	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);	2441	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2108	ev_io_start (EV_A_ &pipe_w);	2442	ev_io_start (EV_A_ &pipe_w);
2109	ev_unref (EV_A); /* watcher should not keep loop alive */	2443	ev_unref (EV_A); /* watcher should not keep loop alive */
2110	}	2444	}
2111	}	2445	}
…		…
2144	#endif	2478	#endif
2145	{	2479	{
2146	#ifdef _WIN32	2480	#ifdef _WIN32
2147	WSABUF buf;	2481	WSABUF buf;
2148	DWORD sent;	2482	DWORD sent;
2149	buf.buf = &buf;	2483	buf.buf = (char *)&buf;
2150	buf.len = 1;	2484	buf.len = 1;
2151	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);	2485	WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2152	#else	2486	#else
2153	write (evpipe [1], &(evpipe [1]), 1);	2487	write (evpipe [1], &(evpipe [1]), 1);
2154	#endif	2488	#endif
…		…
2226	}	2560	}
2227		2561
2228	/*****************************************************************************/	2562	/*****************************************************************************/
2229		2563
2230	void	2564	void
2231	ev_feed_signal (int signum) EV_THROW	2565	ev_feed_signal (int signum) EV_NOEXCEPT
2232	{	2566	{
2233	#if EV_MULTIPLICITY	2567	#if EV_MULTIPLICITY
		2568	EV_P;
2234	ECB_MEMORY_FENCE_ACQUIRE;	2569	ECB_MEMORY_FENCE_ACQUIRE;
2235	EV_P = signals [signum - 1].loop;	2570	EV_A = signals [signum - 1].loop;
2236		2571
2237	if (!EV_A)	2572	if (!EV_A)
2238	return;	2573	return;
2239	#endif	2574	#endif
2240		2575
…		…
2250	#endif	2585	#endif
2251		2586
2252	ev_feed_signal (signum);	2587	ev_feed_signal (signum);
2253	}	2588	}
2254		2589
2255	void noinline	2590	noinline
		2591	void
2256	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2592	ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2257	{	2593	{
2258	WL w;	2594	WL w;
2259		2595
2260	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2596	if (expect_false (signum <= 0 || signum >= EV_NSIG))
2261	return;	2597	return;
…		…
2377	#endif	2713	#endif
2378	#if EV_USE_SELECT	2714	#if EV_USE_SELECT
2379	# include "ev_select.c"	2715	# include "ev_select.c"
2380	#endif	2716	#endif
2381		2717
2382	int ecb_cold	2718	ecb_cold int
2383	ev_version_major (void) EV_THROW	2719	ev_version_major (void) EV_NOEXCEPT
2384	{	2720	{
2385	return EV_VERSION_MAJOR;	2721	return EV_VERSION_MAJOR;
2386	}	2722	}
2387		2723
2388	int ecb_cold	2724	ecb_cold int
2389	ev_version_minor (void) EV_THROW	2725	ev_version_minor (void) EV_NOEXCEPT
2390	{	2726	{
2391	return EV_VERSION_MINOR;	2727	return EV_VERSION_MINOR;
2392	}	2728	}
2393		2729
2394	/* return true if we are running with elevated privileges and should ignore env variables */	2730	/* return true if we are running with elevated privileges and should ignore env variables */
2395	int inline_size ecb_cold	2731	inline_size ecb_cold int
2396	enable_secure (void)	2732	enable_secure (void)
2397	{	2733	{
2398	#ifdef _WIN32	2734	#ifdef _WIN32
2399	return 0;	2735	return 0;
2400	#else	2736	#else
2401	return getuid () != geteuid ()	2737	return getuid () != geteuid ()
2402	|| getgid () != getegid ();	2738	|| getgid () != getegid ();
2403	#endif	2739	#endif
2404	}	2740	}
2405		2741
2406	unsigned int ecb_cold	2742	ecb_cold
		2743	unsigned int
2407	ev_supported_backends (void) EV_THROW	2744	ev_supported_backends (void) EV_NOEXCEPT
2408	{	2745	{
2409	unsigned int flags = 0;	2746	unsigned int flags = 0;
2410		2747
2411	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2748	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2412	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;	2749	if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
…		…
2415	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2752	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2416		2753
2417	return flags;	2754	return flags;
2418	}	2755	}
2419		2756
2420	unsigned int ecb_cold	2757	ecb_cold
		2758	unsigned int
2421	ev_recommended_backends (void) EV_THROW	2759	ev_recommended_backends (void) EV_NOEXCEPT
2422	{	2760	{
2423	unsigned int flags = ev_supported_backends ();	2761	unsigned int flags = ev_supported_backends ();
2424		2762
2425	#ifndef __NetBSD__	2763	#ifndef __NetBSD__
2426	/* kqueue is borked on everything but netbsd apparently */	2764	/* kqueue is borked on everything but netbsd apparently */
…		…
2437	#endif	2775	#endif
2438		2776
2439	return flags;	2777	return flags;
2440	}	2778	}
2441		2779
2442	unsigned int ecb_cold	2780	ecb_cold
		2781	unsigned int
2443	ev_embeddable_backends (void) EV_THROW	2782	ev_embeddable_backends (void) EV_NOEXCEPT
2444	{	2783	{
2445	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2784	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2446		2785
2447	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2786	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2448	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */	2787	if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
…		…
2450		2789
2451	return flags;	2790	return flags;
2452	}	2791	}
2453		2792
2454	unsigned int	2793	unsigned int
2455	ev_backend (EV_P) EV_THROW	2794	ev_backend (EV_P) EV_NOEXCEPT
2456	{	2795	{
2457	return backend;	2796	return backend;
2458	}	2797	}
2459		2798
2460	#if EV_FEATURE_API	2799	#if EV_FEATURE_API
2461	unsigned int	2800	unsigned int
2462	ev_iteration (EV_P) EV_THROW	2801	ev_iteration (EV_P) EV_NOEXCEPT
2463	{	2802	{
2464	return loop_count;	2803	return loop_count;
2465	}	2804	}
2466		2805
2467	unsigned int	2806	unsigned int
2468	ev_depth (EV_P) EV_THROW	2807	ev_depth (EV_P) EV_NOEXCEPT
2469	{	2808	{
2470	return loop_depth;	2809	return loop_depth;
2471	}	2810	}
2472		2811
2473	void	2812	void
2474	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2813	ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2475	{	2814	{
2476	io_blocktime = interval;	2815	io_blocktime = interval;
2477	}	2816	}
2478		2817
2479	void	2818	void
2480	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW	2819	ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2481	{	2820	{
2482	timeout_blocktime = interval;	2821	timeout_blocktime = interval;
2483	}	2822	}
2484		2823
2485	void	2824	void
2486	ev_set_userdata (EV_P_ void *data) EV_THROW	2825	ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2487	{	2826	{
2488	userdata = data;	2827	userdata = data;
2489	}	2828	}
2490		2829
2491	void *	2830	void *
2492	ev_userdata (EV_P) EV_THROW	2831	ev_userdata (EV_P) EV_NOEXCEPT
2493	{	2832	{
2494	return userdata;	2833	return userdata;
2495	}	2834	}
2496		2835
2497	void	2836	void
2498	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW	2837	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2499	{	2838	{
2500	invoke_cb = invoke_pending_cb;	2839	invoke_cb = invoke_pending_cb;
2501	}	2840	}
2502		2841
2503	void	2842	void
2504	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW	2843	ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2505	{	2844	{
2506	release_cb = release;	2845	release_cb = release;
2507	acquire_cb = acquire;	2846	acquire_cb = acquire;
2508	}	2847	}
2509	#endif	2848	#endif
2510		2849
2511	/* initialise a loop structure, must be zero-initialised */	2850	/* initialise a loop structure, must be zero-initialised */
2512	static void noinline ecb_cold	2851	noinline ecb_cold
		2852	static void
2513	loop_init (EV_P_ unsigned int flags) EV_THROW	2853	loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2514	{	2854	{
2515	if (!backend)	2855	if (!backend)
2516	{	2856	{
2517	origflags = flags;	2857	origflags = flags;
2518		2858
…		…
2604	#endif	2944	#endif
2605	}	2945	}
2606	}	2946	}
2607		2947
2608	/* free up a loop structure */	2948	/* free up a loop structure */
2609	void ecb_cold	2949	ecb_cold
		2950	void
2610	ev_loop_destroy (EV_P)	2951	ev_loop_destroy (EV_P)
2611	{	2952	{
2612	int i;	2953	int i;
2613		2954
2614	#if EV_MULTIPLICITY	2955	#if EV_MULTIPLICITY
…		…
2735	#if EV_USE_INOTIFY	3076	#if EV_USE_INOTIFY
2736	infy_fork (EV_A);	3077	infy_fork (EV_A);
2737	#endif	3078	#endif
2738		3079
2739	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3080	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2740	if (ev_is_active (&pipe_w))	3081	if (ev_is_active (&pipe_w) && postfork != 2)
2741	{	3082	{
2742	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3083	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2743		3084
2744	ev_ref (EV_A);	3085	ev_ref (EV_A);
2745	ev_io_stop (EV_A_ &pipe_w);	3086	ev_io_stop (EV_A_ &pipe_w);
…		…
2756	postfork = 0;	3097	postfork = 0;
2757	}	3098	}
2758		3099
2759	#if EV_MULTIPLICITY	3100	#if EV_MULTIPLICITY
2760		3101
		3102	ecb_cold
2761	struct ev_loop * ecb_cold	3103	struct ev_loop *
2762	ev_loop_new (unsigned int flags) EV_THROW	3104	ev_loop_new (unsigned int flags) EV_NOEXCEPT
2763	{	3105	{
2764	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3106	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2765		3107
2766	memset (EV_A, 0, sizeof (struct ev_loop));	3108	memset (EV_A, 0, sizeof (struct ev_loop));
2767	loop_init (EV_A_ flags);	3109	loop_init (EV_A_ flags);
…		…
2774	}	3116	}
2775		3117
2776	#endif /* multiplicity */	3118	#endif /* multiplicity */
2777		3119
2778	#if EV_VERIFY	3120	#if EV_VERIFY
2779	static void noinline ecb_cold	3121	noinline ecb_cold
		3122	static void
2780	verify_watcher (EV_P_ W w)	3123	verify_watcher (EV_P_ W w)
2781	{	3124	{
2782	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3125	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2783		3126
2784	if (w->pending)	3127	if (w->pending)
2785	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3128	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2786	}	3129	}
2787		3130
2788	static void noinline ecb_cold	3131	noinline ecb_cold
		3132	static void
2789	verify_heap (EV_P_ ANHE *heap, int N)	3133	verify_heap (EV_P_ ANHE *heap, int N)
2790	{	3134	{
2791	int i;	3135	int i;
2792		3136
2793	for (i = HEAP0; i < N + HEAP0; ++i)	3137	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2798		3142
2799	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3143	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2800	}	3144	}
2801	}	3145	}
2802		3146
2803	static void noinline ecb_cold	3147	noinline ecb_cold
		3148	static void
2804	array_verify (EV_P_ W *ws, int cnt)	3149	array_verify (EV_P_ W *ws, int cnt)
2805	{	3150	{
2806	while (cnt--)	3151	while (cnt--)
2807	{	3152	{
2808	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3153	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2811	}	3156	}
2812	#endif	3157	#endif
2813		3158
2814	#if EV_FEATURE_API	3159	#if EV_FEATURE_API
2815	void ecb_cold	3160	void ecb_cold
2816	ev_verify (EV_P) EV_THROW	3161	ev_verify (EV_P) EV_NOEXCEPT
2817	{	3162	{
2818	#if EV_VERIFY	3163	#if EV_VERIFY
2819	int i;	3164	int i;
2820	WL w, w2;	3165	WL w, w2;
2821		3166
…		…
2897	#endif	3242	#endif
2898	}	3243	}
2899	#endif	3244	#endif
2900		3245
2901	#if EV_MULTIPLICITY	3246	#if EV_MULTIPLICITY
		3247	ecb_cold
2902	struct ev_loop * ecb_cold	3248	struct ev_loop *
2903	#else	3249	#else
2904	int	3250	int
2905	#endif	3251	#endif
2906	ev_default_loop (unsigned int flags) EV_THROW	3252	ev_default_loop (unsigned int flags) EV_NOEXCEPT
2907	{	3253	{
2908	if (!ev_default_loop_ptr)	3254	if (!ev_default_loop_ptr)
2909	{	3255	{
2910	#if EV_MULTIPLICITY	3256	#if EV_MULTIPLICITY
2911	EV_P = ev_default_loop_ptr = &default_loop_struct;	3257	EV_P = ev_default_loop_ptr = &default_loop_struct;
…		…
2930		3276
2931	return ev_default_loop_ptr;	3277	return ev_default_loop_ptr;
2932	}	3278	}
2933		3279
2934	void	3280	void
2935	ev_loop_fork (EV_P) EV_THROW	3281	ev_loop_fork (EV_P) EV_NOEXCEPT
2936	{	3282	{
2937	postfork = 1;	3283	postfork = 1;
2938	}	3284	}
2939		3285
2940	/*****************************************************************************/	3286	/*****************************************************************************/
…		…
2944	{	3290	{
2945	EV_CB_INVOKE ((W)w, revents);	3291	EV_CB_INVOKE ((W)w, revents);
2946	}	3292	}
2947		3293
2948	unsigned int	3294	unsigned int
2949	ev_pending_count (EV_P) EV_THROW	3295	ev_pending_count (EV_P) EV_NOEXCEPT
2950	{	3296	{
2951	int pri;	3297	int pri;
2952	unsigned int count = 0;	3298	unsigned int count = 0;
2953		3299
2954	for (pri = NUMPRI; pri--; )	3300	for (pri = NUMPRI; pri--; )
2955	count += pendingcnt [pri];	3301	count += pendingcnt [pri];
2956		3302
2957	return count;	3303	return count;
2958	}	3304	}
2959		3305
2960	void noinline	3306	noinline
		3307	void
2961	ev_invoke_pending (EV_P)	3308	ev_invoke_pending (EV_P)
2962	{	3309	{
2963	pendingpri = NUMPRI;	3310	pendingpri = NUMPRI;
2964		3311
2965	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3312	do
2966	{	3313	{
2967	--pendingpri;	3314	--pendingpri;
2968		3315
		3316	/* pendingpri possibly gets modified in the inner loop */
2969	while (pendingcnt [pendingpri])	3317	while (pendingcnt [pendingpri])
2970	{	3318	{
2971	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3319	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2972		3320
2973	p->w->pending = 0;	3321	p->w->pending = 0;
2974	EV_CB_INVOKE (p->w, p->events);	3322	EV_CB_INVOKE (p->w, p->events);
2975	EV_FREQUENT_CHECK;	3323	EV_FREQUENT_CHECK;
2976	}	3324	}
2977	}	3325	}
		3326	while (pendingpri);
2978	}	3327	}
2979		3328
2980	#if EV_IDLE_ENABLE	3329	#if EV_IDLE_ENABLE
2981	/* make idle watchers pending. this handles the "call-idle */	3330	/* make idle watchers pending. this handles the "call-idle */
2982	/* only when higher priorities are idle" logic */	3331	/* only when higher priorities are idle" logic */
…		…
3040	}	3389	}
3041	}	3390	}
3042		3391
3043	#if EV_PERIODIC_ENABLE	3392	#if EV_PERIODIC_ENABLE
3044		3393
3045	static void noinline	3394	noinline
		3395	static void
3046	periodic_recalc (EV_P_ ev_periodic *w)	3396	periodic_recalc (EV_P_ ev_periodic *w)
3047	{	3397	{
3048	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3398	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3049	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3399	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3050		3400
…		…
3108	}	3458	}
3109	}	3459	}
3110		3460
3111	/* simply recalculate all periodics */	3461	/* simply recalculate all periodics */
3112	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3462	/* TODO: maybe ensure that at least one event happens when jumping forward? */
3113	static void noinline ecb_cold	3463	noinline ecb_cold
		3464	static void
3114	periodics_reschedule (EV_P)	3465	periodics_reschedule (EV_P)
3115	{	3466	{
3116	int i;	3467	int i;
3117		3468
3118	/* adjust periodics after time jump */	3469	/* adjust periodics after time jump */
…		…
3131	reheap (periodics, periodiccnt);	3482	reheap (periodics, periodiccnt);
3132	}	3483	}
3133	#endif	3484	#endif
3134		3485
3135	/* adjust all timers by a given offset */	3486	/* adjust all timers by a given offset */
3136	static void noinline ecb_cold	3487	noinline ecb_cold
		3488	static void
3137	timers_reschedule (EV_P_ ev_tstamp adjust)	3489	timers_reschedule (EV_P_ ev_tstamp adjust)
3138	{	3490	{
3139	int i;	3491	int i;
3140		3492
3141	for (i = 0; i < timercnt; ++i)	3493	for (i = 0; i < timercnt; ++i)
…		…
3388		3740
3389	return activecnt;	3741	return activecnt;
3390	}	3742	}
3391		3743
3392	void	3744	void
3393	ev_break (EV_P_ int how) EV_THROW	3745	ev_break (EV_P_ int how) EV_NOEXCEPT
3394	{	3746	{
3395	loop_done = how;	3747	loop_done = how;
3396	}	3748	}
3397		3749
3398	void	3750	void
3399	ev_ref (EV_P) EV_THROW	3751	ev_ref (EV_P) EV_NOEXCEPT
3400	{	3752	{
3401	++activecnt;	3753	++activecnt;
3402	}	3754	}
3403		3755
3404	void	3756	void
3405	ev_unref (EV_P) EV_THROW	3757	ev_unref (EV_P) EV_NOEXCEPT
3406	{	3758	{
3407	--activecnt;	3759	--activecnt;
3408	}	3760	}
3409		3761
3410	void	3762	void
3411	ev_now_update (EV_P) EV_THROW	3763	ev_now_update (EV_P) EV_NOEXCEPT
3412	{	3764	{
3413	time_update (EV_A_ 1e100);	3765	time_update (EV_A_ 1e100);
3414	}	3766	}
3415		3767
3416	void	3768	void
3417	ev_suspend (EV_P) EV_THROW	3769	ev_suspend (EV_P) EV_NOEXCEPT
3418	{	3770	{
3419	ev_now_update (EV_A);	3771	ev_now_update (EV_A);
3420	}	3772	}
3421		3773
3422	void	3774	void
3423	ev_resume (EV_P) EV_THROW	3775	ev_resume (EV_P) EV_NOEXCEPT
3424	{	3776	{
3425	ev_tstamp mn_prev = mn_now;	3777	ev_tstamp mn_prev = mn_now;
3426		3778
3427	ev_now_update (EV_A);	3779	ev_now_update (EV_A);
3428	timers_reschedule (EV_A_ mn_now - mn_prev);	3780	timers_reschedule (EV_A_ mn_now - mn_prev);
…		…
3467	w->pending = 0;	3819	w->pending = 0;
3468	}	3820	}
3469	}	3821	}
3470		3822
3471	int	3823	int
3472	ev_clear_pending (EV_P_ void *w) EV_THROW	3824	ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3473	{	3825	{
3474	W w_ = (W)w;	3826	W w_ = (W)w;
3475	int pending = w_->pending;	3827	int pending = w_->pending;
3476		3828
3477	if (expect_true (pending))	3829	if (expect_true (pending))
…		…
3509	w->active = 0;	3861	w->active = 0;
3510	}	3862	}
3511		3863
3512	/*****************************************************************************/	3864	/*****************************************************************************/
3513		3865
3514	void noinline	3866	noinline
		3867	void
3515	ev_io_start (EV_P_ ev_io *w) EV_THROW	3868	ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3516	{	3869	{
3517	int fd = w->fd;	3870	int fd = w->fd;
3518		3871
3519	if (expect_false (ev_is_active (w)))	3872	if (expect_false (ev_is_active (w)))
3520	return;	3873	return;
…		…
3535	w->events &= ~EV__IOFDSET;	3888	w->events &= ~EV__IOFDSET;
3536		3889
3537	EV_FREQUENT_CHECK;	3890	EV_FREQUENT_CHECK;
3538	}	3891	}
3539		3892
3540	void noinline	3893	noinline
		3894	void
3541	ev_io_stop (EV_P_ ev_io *w) EV_THROW	3895	ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3542	{	3896	{
3543	clear_pending (EV_A_ (W)w);	3897	clear_pending (EV_A_ (W)w);
3544	if (expect_false (!ev_is_active (w)))	3898	if (expect_false (!ev_is_active (w)))
3545	return;	3899	return;
3546		3900
…		…
3554	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	3908	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3555		3909
3556	EV_FREQUENT_CHECK;	3910	EV_FREQUENT_CHECK;
3557	}	3911	}
3558		3912
3559	void noinline	3913	noinline
		3914	void
3560	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	3915	ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3561	{	3916	{
3562	if (expect_false (ev_is_active (w)))	3917	if (expect_false (ev_is_active (w)))
3563	return;	3918	return;
3564		3919
3565	ev_at (w) += mn_now;	3920	ev_at (w) += mn_now;
…		…
3578	EV_FREQUENT_CHECK;	3933	EV_FREQUENT_CHECK;
3579		3934
3580	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3935	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3581	}	3936	}
3582		3937
3583	void noinline	3938	noinline
		3939	void
3584	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	3940	ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3585	{	3941	{
3586	clear_pending (EV_A_ (W)w);	3942	clear_pending (EV_A_ (W)w);
3587	if (expect_false (!ev_is_active (w)))	3943	if (expect_false (!ev_is_active (w)))
3588	return;	3944	return;
3589		3945
…		…
3608	ev_stop (EV_A_ (W)w);	3964	ev_stop (EV_A_ (W)w);
3609		3965
3610	EV_FREQUENT_CHECK;	3966	EV_FREQUENT_CHECK;
3611	}	3967	}
3612		3968
3613	void noinline	3969	noinline
		3970	void
3614	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	3971	ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3615	{	3972	{
3616	EV_FREQUENT_CHECK;	3973	EV_FREQUENT_CHECK;
3617		3974
3618	clear_pending (EV_A_ (W)w);	3975	clear_pending (EV_A_ (W)w);
3619		3976
…		…
3636		3993
3637	EV_FREQUENT_CHECK;	3994	EV_FREQUENT_CHECK;
3638	}	3995	}
3639		3996
3640	ev_tstamp	3997	ev_tstamp
3641	ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW	3998	ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3642	{	3999	{
3643	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	4000	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3644	}	4001	}
3645		4002
3646	#if EV_PERIODIC_ENABLE	4003	#if EV_PERIODIC_ENABLE
3647	void noinline	4004	noinline
		4005	void
3648	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4006	ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3649	{	4007	{
3650	if (expect_false (ev_is_active (w)))	4008	if (expect_false (ev_is_active (w)))
3651	return;	4009	return;
3652		4010
3653	if (w->reschedule_cb)	4011	if (w->reschedule_cb)
…		…
3672	EV_FREQUENT_CHECK;	4030	EV_FREQUENT_CHECK;
3673		4031
3674	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4032	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3675	}	4033	}
3676		4034
3677	void noinline	4035	noinline
		4036	void
3678	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4037	ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3679	{	4038	{
3680	clear_pending (EV_A_ (W)w);	4039	clear_pending (EV_A_ (W)w);
3681	if (expect_false (!ev_is_active (w)))	4040	if (expect_false (!ev_is_active (w)))
3682	return;	4041	return;
3683		4042
…		…
3700	ev_stop (EV_A_ (W)w);	4059	ev_stop (EV_A_ (W)w);
3701		4060
3702	EV_FREQUENT_CHECK;	4061	EV_FREQUENT_CHECK;
3703	}	4062	}
3704		4063
3705	void noinline	4064	noinline
		4065	void
3706	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4066	ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3707	{	4067	{
3708	/* TODO: use adjustheap and recalculation */	4068	/* TODO: use adjustheap and recalculation */
3709	ev_periodic_stop (EV_A_ w);	4069	ev_periodic_stop (EV_A_ w);
3710	ev_periodic_start (EV_A_ w);	4070	ev_periodic_start (EV_A_ w);
3711	}	4071	}
…		…
3715	# define SA_RESTART 0	4075	# define SA_RESTART 0
3716	#endif	4076	#endif
3717		4077
3718	#if EV_SIGNAL_ENABLE	4078	#if EV_SIGNAL_ENABLE
3719		4079
3720	void noinline	4080	noinline
		4081	void
3721	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4082	ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3722	{	4083	{
3723	if (expect_false (ev_is_active (w)))	4084	if (expect_false (ev_is_active (w)))
3724	return;	4085	return;
3725		4086
3726	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));	4087	assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
…		…
3797	}	4158	}
3798		4159
3799	EV_FREQUENT_CHECK;	4160	EV_FREQUENT_CHECK;
3800	}	4161	}
3801		4162
3802	void noinline	4163	noinline
		4164	void
3803	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4165	ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3804	{	4166	{
3805	clear_pending (EV_A_ (W)w);	4167	clear_pending (EV_A_ (W)w);
3806	if (expect_false (!ev_is_active (w)))	4168	if (expect_false (!ev_is_active (w)))
3807	return;	4169	return;
3808		4170
…		…
3839	#endif	4201	#endif
3840		4202
3841	#if EV_CHILD_ENABLE	4203	#if EV_CHILD_ENABLE
3842		4204
3843	void	4205	void
3844	ev_child_start (EV_P_ ev_child *w) EV_THROW	4206	ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3845	{	4207	{
3846	#if EV_MULTIPLICITY	4208	#if EV_MULTIPLICITY
3847	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));	4209	assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3848	#endif	4210	#endif
3849	if (expect_false (ev_is_active (w)))	4211	if (expect_false (ev_is_active (w)))
…		…
3856		4218
3857	EV_FREQUENT_CHECK;	4219	EV_FREQUENT_CHECK;
3858	}	4220	}
3859		4221
3860	void	4222	void
3861	ev_child_stop (EV_P_ ev_child *w) EV_THROW	4223	ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3862	{	4224	{
3863	clear_pending (EV_A_ (W)w);	4225	clear_pending (EV_A_ (W)w);
3864	if (expect_false (!ev_is_active (w)))	4226	if (expect_false (!ev_is_active (w)))
3865	return;	4227	return;
3866		4228
…		…
3883		4245
3884	#define DEF_STAT_INTERVAL 5.0074891	4246	#define DEF_STAT_INTERVAL 5.0074891
3885	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4247	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3886	#define MIN_STAT_INTERVAL 0.1074891	4248	#define MIN_STAT_INTERVAL 0.1074891
3887		4249
3888	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4250	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3889		4251
3890	#if EV_USE_INOTIFY	4252	#if EV_USE_INOTIFY
3891		4253
3892	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4254	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3893	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4255	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3894		4256
3895	static void noinline	4257	noinline
		4258	static void
3896	infy_add (EV_P_ ev_stat *w)	4259	infy_add (EV_P_ ev_stat *w)
3897	{	4260	{
3898	w->wd = inotify_add_watch (fs_fd, w->path,	4261	w->wd = inotify_add_watch (fs_fd, w->path,
3899	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4262	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3900	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4263	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
3964	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4327	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3965	ev_timer_again (EV_A_ &w->timer);	4328	ev_timer_again (EV_A_ &w->timer);
3966	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4329	if (ev_is_active (&w->timer)) ev_unref (EV_A);
3967	}	4330	}
3968		4331
3969	static void noinline	4332	noinline
		4333	static void
3970	infy_del (EV_P_ ev_stat *w)	4334	infy_del (EV_P_ ev_stat *w)
3971	{	4335	{
3972	int slot;	4336	int slot;
3973	int wd = w->wd;	4337	int wd = w->wd;
3974		4338
…		…
3981		4345
3982	/* remove this watcher, if others are watching it, they will rearm */	4346	/* remove this watcher, if others are watching it, they will rearm */
3983	inotify_rm_watch (fs_fd, wd);	4347	inotify_rm_watch (fs_fd, wd);
3984	}	4348	}
3985		4349
3986	static void noinline	4350	noinline
		4351	static void
3987	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4352	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3988	{	4353	{
3989	if (slot < 0)	4354	if (slot < 0)
3990	/* overflow, need to check for all hash slots */	4355	/* overflow, need to check for all hash slots */
3991	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4356	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4027	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4392	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4028	ofs += sizeof (struct inotify_event) + ev->len;	4393	ofs += sizeof (struct inotify_event) + ev->len;
4029	}	4394	}
4030	}	4395	}
4031		4396
4032	inline_size void ecb_cold	4397	inline_size ecb_cold
		4398	void
4033	ev_check_2625 (EV_P)	4399	ev_check_2625 (EV_P)
4034	{	4400	{
4035	/* kernels < 2.6.25 are borked	4401	/* kernels < 2.6.25 are borked
4036	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4402	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4037	*/	4403	*/
…		…
4127	#else	4493	#else
4128	# define EV_LSTAT(p,b) lstat (p, b)	4494	# define EV_LSTAT(p,b) lstat (p, b)
4129	#endif	4495	#endif
4130		4496
4131	void	4497	void
4132	ev_stat_stat (EV_P_ ev_stat *w) EV_THROW	4498	ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4133	{	4499	{
4134	if (lstat (w->path, &w->attr) < 0)	4500	if (lstat (w->path, &w->attr) < 0)
4135	w->attr.st_nlink = 0;	4501	w->attr.st_nlink = 0;
4136	else if (!w->attr.st_nlink)	4502	else if (!w->attr.st_nlink)
4137	w->attr.st_nlink = 1;	4503	w->attr.st_nlink = 1;
4138	}	4504	}
4139		4505
4140	static void noinline	4506	noinline
		4507	static void
4141	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4508	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4142	{	4509	{
4143	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4510	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4144		4511
4145	ev_statdata prev = w->attr;	4512	ev_statdata prev = w->attr;
…		…
4176	ev_feed_event (EV_A_ w, EV_STAT);	4543	ev_feed_event (EV_A_ w, EV_STAT);
4177	}	4544	}
4178	}	4545	}
4179		4546
4180	void	4547	void
4181	ev_stat_start (EV_P_ ev_stat *w) EV_THROW	4548	ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4182	{	4549	{
4183	if (expect_false (ev_is_active (w)))	4550	if (expect_false (ev_is_active (w)))
4184	return;	4551	return;
4185		4552
4186	ev_stat_stat (EV_A_ w);	4553	ev_stat_stat (EV_A_ w);
…		…
4207		4574
4208	EV_FREQUENT_CHECK;	4575	EV_FREQUENT_CHECK;
4209	}	4576	}
4210		4577
4211	void	4578	void
4212	ev_stat_stop (EV_P_ ev_stat *w) EV_THROW	4579	ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4213	{	4580	{
4214	clear_pending (EV_A_ (W)w);	4581	clear_pending (EV_A_ (W)w);
4215	if (expect_false (!ev_is_active (w)))	4582	if (expect_false (!ev_is_active (w)))
4216	return;	4583	return;
4217		4584
…		…
4233	}	4600	}
4234	#endif	4601	#endif
4235		4602
4236	#if EV_IDLE_ENABLE	4603	#if EV_IDLE_ENABLE
4237	void	4604	void
4238	ev_idle_start (EV_P_ ev_idle *w) EV_THROW	4605	ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4239	{	4606	{
4240	if (expect_false (ev_is_active (w)))	4607	if (expect_false (ev_is_active (w)))
4241	return;	4608	return;
4242		4609
4243	pri_adjust (EV_A_ (W)w);	4610	pri_adjust (EV_A_ (W)w);
…		…
4256		4623
4257	EV_FREQUENT_CHECK;	4624	EV_FREQUENT_CHECK;
4258	}	4625	}
4259		4626
4260	void	4627	void
4261	ev_idle_stop (EV_P_ ev_idle *w) EV_THROW	4628	ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4262	{	4629	{
4263	clear_pending (EV_A_ (W)w);	4630	clear_pending (EV_A_ (W)w);
4264	if (expect_false (!ev_is_active (w)))	4631	if (expect_false (!ev_is_active (w)))
4265	return;	4632	return;
4266		4633
…		…
4280	}	4647	}
4281	#endif	4648	#endif
4282		4649
4283	#if EV_PREPARE_ENABLE	4650	#if EV_PREPARE_ENABLE
4284	void	4651	void
4285	ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW	4652	ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4286	{	4653	{
4287	if (expect_false (ev_is_active (w)))	4654	if (expect_false (ev_is_active (w)))
4288	return;	4655	return;
4289		4656
4290	EV_FREQUENT_CHECK;	4657	EV_FREQUENT_CHECK;
…		…
4295		4662
4296	EV_FREQUENT_CHECK;	4663	EV_FREQUENT_CHECK;
4297	}	4664	}
4298		4665
4299	void	4666	void
4300	ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW	4667	ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4301	{	4668	{
4302	clear_pending (EV_A_ (W)w);	4669	clear_pending (EV_A_ (W)w);
4303	if (expect_false (!ev_is_active (w)))	4670	if (expect_false (!ev_is_active (w)))
4304	return;	4671	return;
4305		4672
…		…
4318	}	4685	}
4319	#endif	4686	#endif
4320		4687
4321	#if EV_CHECK_ENABLE	4688	#if EV_CHECK_ENABLE
4322	void	4689	void
4323	ev_check_start (EV_P_ ev_check *w) EV_THROW	4690	ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4324	{	4691	{
4325	if (expect_false (ev_is_active (w)))	4692	if (expect_false (ev_is_active (w)))
4326	return;	4693	return;
4327		4694
4328	EV_FREQUENT_CHECK;	4695	EV_FREQUENT_CHECK;
…		…
4333		4700
4334	EV_FREQUENT_CHECK;	4701	EV_FREQUENT_CHECK;
4335	}	4702	}
4336		4703
4337	void	4704	void
4338	ev_check_stop (EV_P_ ev_check *w) EV_THROW	4705	ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4339	{	4706	{
4340	clear_pending (EV_A_ (W)w);	4707	clear_pending (EV_A_ (W)w);
4341	if (expect_false (!ev_is_active (w)))	4708	if (expect_false (!ev_is_active (w)))
4342	return;	4709	return;
4343		4710
…		…
4355	EV_FREQUENT_CHECK;	4722	EV_FREQUENT_CHECK;
4356	}	4723	}
4357	#endif	4724	#endif
4358		4725
4359	#if EV_EMBED_ENABLE	4726	#if EV_EMBED_ENABLE
4360	void noinline	4727	noinline
		4728	void
4361	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4729	ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4362	{	4730	{
4363	ev_run (w->other, EVRUN_NOWAIT);	4731	ev_run (w->other, EVRUN_NOWAIT);
4364	}	4732	}
4365		4733
4366	static void	4734	static void
…		…
4414	ev_idle_stop (EV_A_ idle);	4782	ev_idle_stop (EV_A_ idle);
4415	}	4783	}
4416	#endif	4784	#endif
4417		4785
4418	void	4786	void
4419	ev_embed_start (EV_P_ ev_embed *w) EV_THROW	4787	ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4420	{	4788	{
4421	if (expect_false (ev_is_active (w)))	4789	if (expect_false (ev_is_active (w)))
4422	return;	4790	return;
4423		4791
4424	{	4792	{
…		…
4445		4813
4446	EV_FREQUENT_CHECK;	4814	EV_FREQUENT_CHECK;
4447	}	4815	}
4448		4816
4449	void	4817	void
4450	ev_embed_stop (EV_P_ ev_embed *w) EV_THROW	4818	ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4451	{	4819	{
4452	clear_pending (EV_A_ (W)w);	4820	clear_pending (EV_A_ (W)w);
4453	if (expect_false (!ev_is_active (w)))	4821	if (expect_false (!ev_is_active (w)))
4454	return;	4822	return;
4455		4823
…		…
4465	}	4833	}
4466	#endif	4834	#endif
4467		4835
4468	#if EV_FORK_ENABLE	4836	#if EV_FORK_ENABLE
4469	void	4837	void
4470	ev_fork_start (EV_P_ ev_fork *w) EV_THROW	4838	ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4471	{	4839	{
4472	if (expect_false (ev_is_active (w)))	4840	if (expect_false (ev_is_active (w)))
4473	return;	4841	return;
4474		4842
4475	EV_FREQUENT_CHECK;	4843	EV_FREQUENT_CHECK;
…		…
4480		4848
4481	EV_FREQUENT_CHECK;	4849	EV_FREQUENT_CHECK;
4482	}	4850	}
4483		4851
4484	void	4852	void
4485	ev_fork_stop (EV_P_ ev_fork *w) EV_THROW	4853	ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4486	{	4854	{
4487	clear_pending (EV_A_ (W)w);	4855	clear_pending (EV_A_ (W)w);
4488	if (expect_false (!ev_is_active (w)))	4856	if (expect_false (!ev_is_active (w)))
4489	return;	4857	return;
4490		4858
…		…
4503	}	4871	}
4504	#endif	4872	#endif
4505		4873
4506	#if EV_CLEANUP_ENABLE	4874	#if EV_CLEANUP_ENABLE
4507	void	4875	void
4508	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW	4876	ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4509	{	4877	{
4510	if (expect_false (ev_is_active (w)))	4878	if (expect_false (ev_is_active (w)))
4511	return;	4879	return;
4512		4880
4513	EV_FREQUENT_CHECK;	4881	EV_FREQUENT_CHECK;
…		…
4520	ev_unref (EV_A);	4888	ev_unref (EV_A);
4521	EV_FREQUENT_CHECK;	4889	EV_FREQUENT_CHECK;
4522	}	4890	}
4523		4891
4524	void	4892	void
4525	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW	4893	ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4526	{	4894	{
4527	clear_pending (EV_A_ (W)w);	4895	clear_pending (EV_A_ (W)w);
4528	if (expect_false (!ev_is_active (w)))	4896	if (expect_false (!ev_is_active (w)))
4529	return;	4897	return;
4530		4898
…		…
4544	}	4912	}
4545	#endif	4913	#endif
4546		4914
4547	#if EV_ASYNC_ENABLE	4915	#if EV_ASYNC_ENABLE
4548	void	4916	void
4549	ev_async_start (EV_P_ ev_async *w) EV_THROW	4917	ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4550	{	4918	{
4551	if (expect_false (ev_is_active (w)))	4919	if (expect_false (ev_is_active (w)))
4552	return;	4920	return;
4553		4921
4554	w->sent = 0;	4922	w->sent = 0;
…		…
4563		4931
4564	EV_FREQUENT_CHECK;	4932	EV_FREQUENT_CHECK;
4565	}	4933	}
4566		4934
4567	void	4935	void
4568	ev_async_stop (EV_P_ ev_async *w) EV_THROW	4936	ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4569	{	4937	{
4570	clear_pending (EV_A_ (W)w);	4938	clear_pending (EV_A_ (W)w);
4571	if (expect_false (!ev_is_active (w)))	4939	if (expect_false (!ev_is_active (w)))
4572	return;	4940	return;
4573		4941
…		…
4584		4952
4585	EV_FREQUENT_CHECK;	4953	EV_FREQUENT_CHECK;
4586	}	4954	}
4587		4955
4588	void	4956	void
4589	ev_async_send (EV_P_ ev_async *w) EV_THROW	4957	ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4590	{	4958	{
4591	w->sent = 1;	4959	w->sent = 1;
4592	evpipe_write (EV_A_ &async_pending);	4960	evpipe_write (EV_A_ &async_pending);
4593	}	4961	}
4594	#endif	4962	#endif
…		…
4631		4999
4632	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));	5000	once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4633	}	5001	}
4634		5002
4635	void	5003	void
4636	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW	5004	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4637	{	5005	{
4638	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));	5006	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4639		5007
4640	if (expect_false (!once))	5008	if (expect_false (!once))
4641	{	5009	{
…		…
4662	}	5030	}
4663		5031
4664	/*****************************************************************************/	5032	/*****************************************************************************/
4665		5033
4666	#if EV_WALK_ENABLE	5034	#if EV_WALK_ENABLE
4667	void ecb_cold	5035	ecb_cold
		5036	void
4668	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5037	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4669	{	5038	{
4670	int i, j;	5039	int i, j;
4671	ev_watcher_list *wl, *wn;	5040	ev_watcher_list *wl, *wn;
4672		5041
4673	if (types & (EV_IO | EV_EMBED))	5042	if (types & (EV_IO | EV_EMBED))

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