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Comparing libev/ev.c (file contents):
Revision 1.452 by root, Mon Feb 18 03:20:29 2013 UTC vs.
Revision 1.484 by root, Tue Jul 31 05:40:58 2018 UTC

1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
…		…
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
47		47
48	#if HAVE_FLOOR	48	# if HAVE_FLOOR
49	# ifndef EV_USE_FLOOR	49	# ifndef EV_USE_FLOOR
50	# define EV_USE_FLOOR 1	50	# define EV_USE_FLOOR 1
		51	# endif
51	# endif	52	# endif
52	#endif
53		53
54	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
55	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
56	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
57	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
162	# define EV_USE_EVENTFD 0	162	# define EV_USE_EVENTFD 0
163	# endif	163	# endif
164		164
165	#endif	165	#endif
166		166
		167	/* OS X, in its infinite idiocy, actually HARDCODES
		168	* a limit of 1024 into their select. Where people have brains,
		169	* OS X engineers apparently have a vacuum. Or maybe they were
		170	* ordered to have a vacuum, or they do anything for money.
		171	* This might help. Or not.
		172	* Note that this must be defined early, as other include files
		173	* will rely on this define as well.
		174	*/
		175	#define _DARWIN_UNLIMITED_SELECT 1
		176
167	#include <stdlib.h>	177	#include <stdlib.h>
168	#include <string.h>	178	#include <string.h>
169	#include <fcntl.h>	179	#include <fcntl.h>
170	#include <stddef.h>	180	#include <stddef.h>
171		181
…		…
208	# ifndef EV_SELECT_IS_WINSOCKET	218	# ifndef EV_SELECT_IS_WINSOCKET
209	# define EV_SELECT_IS_WINSOCKET 1	219	# define EV_SELECT_IS_WINSOCKET 1
210	# endif	220	# endif
211	# undef EV_AVOID_STDIO	221	# undef EV_AVOID_STDIO
212	#endif	222	#endif
213
214	/* OS X, in its infinite idiocy, actually HARDCODES
215	* a limit of 1024 into their select. Where people have brains,
216	* OS X engineers apparently have a vacuum. Or maybe they were
217	* ordered to have a vacuum, or they do anything for money.
218	* This might help. Or not.
219	*/
220	#define _DARWIN_UNLIMITED_SELECT 1
221		223
222	/* this block tries to deduce configuration from header-defined symbols and defaults */	224	/* this block tries to deduce configuration from header-defined symbols and defaults */
223		225
224	/* try to deduce the maximum number of signals on this platform */	226	/* try to deduce the maximum number of signals on this platform */
225	#if defined EV_NSIG	227	#if defined EV_NSIG
…		…
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
…		…
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
360	#endif	368	#endif
361		369
362	#ifdef ANDROID	370	#ifdef __ANDROID__
363	/* supposedly, android doesn't typedef fd_mask */	371	/* supposedly, android doesn't typedef fd_mask */
364	# undef EV_USE_SELECT	372	# undef EV_USE_SELECT
365	# define EV_USE_SELECT 0	373	# define EV_USE_SELECT 0
366	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */	374	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
367	# undef EV_USE_CLOCK_SYSCALL	375	# undef EV_USE_CLOCK_SYSCALL
…		…
485	/* 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 */
486	/* ECB.H BEGIN */	494	/* ECB.H BEGIN */
487	/*	495	/*
488	* libecb - http://software.schmorp.de/pkg/libecb	496	* libecb - http://software.schmorp.de/pkg/libecb
489	*	497	*
490	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	498	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
491	* Copyright (©) 2011 Emanuele Giaquinta	499	* Copyright (©) 2011 Emanuele Giaquinta
492	* All rights reserved.	500	* All rights reserved.
493	*	501	*
494	* 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-
495	* tion, are permitted provided that the following conditions are met:	503	* tion, are permitted provided that the following conditions are met:
…		…
509	* 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;
510	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	518	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
511	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	519	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
512	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED	520	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
513	* 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.
514	*/	533	*/
515		534
516	#ifndef ECB_H	535	#ifndef ECB_H
517	#define ECB_H	536	#define ECB_H
518		537
519	/* 16 bits major, 16 bits minor */	538	/* 16 bits major, 16 bits minor */
520	#define ECB_VERSION 0x00010002	539	#define ECB_VERSION 0x00010005
521		540
522	#ifdef _WIN32	541	#ifdef _WIN32
523	typedef signed char int8_t;	542	typedef signed char int8_t;
524	typedef unsigned char uint8_t;	543	typedef unsigned char uint8_t;
525	typedef signed short int16_t;	544	typedef signed short int16_t;
…		…
542	typedef uint32_t uintptr_t;	561	typedef uint32_t uintptr_t;
543	typedef int32_t intptr_t;	562	typedef int32_t intptr_t;
544	#endif	563	#endif
545	#else	564	#else
546	#include <inttypes.h>	565	#include <inttypes.h>
547	#if UINTMAX_MAX > 0xffffffffU	566	#if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
548	#define ECB_PTRSIZE 8	567	#define ECB_PTRSIZE 8
549	#else	568	#else
550	#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
551	#endif	582	#endif
552	#endif	583	#endif
553		584
554	/* many compilers define _GNUC_ to some versions but then only implement	585	/* many compilers define _GNUC_ to some versions but then only implement
555	* what their idiot authors think are the "more important" extensions,	586	* what their idiot authors think are the "more important" extensions,
556	* causing enormous grief in return for some better fake benchmark numbers.	587	* causing enormous grief in return for some better fake benchmark numbers.
557	* or so.	588	* or so.
558	* 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
559	* 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.
560	*/	591	*/
561	#ifndef ECB_GCC_VERSION
562	#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__
563	#define ECB_GCC_VERSION(major,minor) 0	593	#define ECB_GCC_VERSION(major,minor) 0
564	#else	594	#else
565	#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)))
566	#endif	596	#endif
567	#endif
568		597
569	#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)))
570	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	599
571	#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
572	#define ECB_CPP (__cplusplus+0)	612	#define ECB_CPP (__cplusplus+0)
573	#define ECB_CPP11 (__cplusplus >= 201103L)	613	#define ECB_CPP11 (__cplusplus >= 201103L)
		614
		615	#if ECB_CPP
		616	#define ECB_C 0
		617	#define ECB_STDC_VERSION 0
		618	#else
		619	#define ECB_C 1
		620	#define ECB_STDC_VERSION __STDC_VERSION__
		621	#endif
		622
		623	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		624	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
574		625
575	#if ECB_CPP	626	#if ECB_CPP
576	#define ECB_EXTERN_C extern "C"	627	#define ECB_EXTERN_C extern "C"
577	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {	628	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
578	#define ECB_EXTERN_C_END }	629	#define ECB_EXTERN_C_END }
…		…
591	#define ECB_NO_SMP 1	642	#define ECB_NO_SMP 1
592	#endif	643	#endif
593		644
594	#if ECB_NO_SMP	645	#if ECB_NO_SMP
595	#define ECB_MEMORY_FENCE do { } while (0)	646	#define ECB_MEMORY_FENCE do { } while (0)
		647	#endif
		648
		649	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
		650	#if __xlC__ && ECB_CPP
		651	#include <builtins.h>
		652	#endif
		653
		654	#if 1400 <= _MSC_VER
		655	#include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
596	#endif	656	#endif
597		657
598	#ifndef ECB_MEMORY_FENCE	658	#ifndef ECB_MEMORY_FENCE
599	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110	659	#if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600	#if __i386 || __i386__	660	#if __i386 || __i386__
601	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")	661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
602	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	662	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
603	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	663	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
604	#elif __amd64 || __amd64__ || __x86_64 || __x86_64__	664	#elif ECB_GCC_AMD64
605	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")	665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
606	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")	666	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
607	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	667	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
608	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__	668	#elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
609	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	669	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		670	#elif defined __ARM_ARCH_2__ \
		671	|| defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
		672	|| defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
		673	|| defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
		674	|| defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
		675	|| defined __ARM_ARCH_5TEJ__
		676	/* should not need any, unless running old code on newer cpu - arm doesn't support that */
610	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \	677	#elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
611	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__	678	|| defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
		679	|| defined __ARM_ARCH_6T2__
612	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	680	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
613	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \	681	#elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
614	|| defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__	682	|| defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
615	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	683	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
616	#elif __sparc || __sparc__	684	#elif __aarch64__
		685	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
		686	#elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
617	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")	687	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
618	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")	688	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
619	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")	689	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
620	#elif defined __s390__ || defined __s390x__	690	#elif defined __s390__ || defined __s390x__
621	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	691	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
622	#elif defined __mips__	692	#elif defined __mips__
		693	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		694	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
623	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	695	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
624	#elif defined __alpha__	696	#elif defined __alpha__
625	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")	697	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
626	#elif defined __hppa__	698	#elif defined __hppa__
627	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")	699	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
628	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	700	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629	#elif defined __ia64__	701	#elif defined __ia64__
630	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")	702	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		703	#elif defined __m68k__
		704	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		705	#elif defined __m88k__
		706	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		707	#elif defined __sh__
		708	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
631	#endif	709	#endif
632	#endif	710	#endif
633	#endif	711	#endif
634		712
635	#ifndef ECB_MEMORY_FENCE	713	#ifndef ECB_MEMORY_FENCE
636	#if ECB_GCC_VERSION(4,7)	714	#if ECB_GCC_VERSION(4,7)
637	/* see comment below (stdatomic.h) about the C11 memory model. */	715	/* see comment below (stdatomic.h) about the C11 memory model. */
638	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	716	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
		717	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		718	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
639		719
640	/* The __has_feature syntax from clang is so misdesigned that we cannot use it	720	#elif ECB_CLANG_EXTENSION(c_atomic)
641	* without risking compile time errors with other compilers. We *could*
642	* define our own ecb_clang_has_feature, but I just can't be bothered to work
643	* around this shit time and again.
644	* #elif defined __clang && __has_feature (cxx_atomic)
645	* // see comment below (stdatomic.h) about the C11 memory model.	721	/* see comment below (stdatomic.h) about the C11 memory model. */
646	* #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	722	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
647	*/	723	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		724	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
648		725
649	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__	726	#elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
650	#define ECB_MEMORY_FENCE __sync_synchronize ()	727	#define ECB_MEMORY_FENCE __sync_synchronize ()
		728	#elif _MSC_VER >= 1500 /* VC++ 2008 */
		729	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		730	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		731	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		732	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		733	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
651	#elif _MSC_VER >= 1400 /* VC++ 2005 */	734	#elif _MSC_VER >= 1400 /* VC++ 2005 */
652	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	735	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
653	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	736	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
654	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	737	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
655	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	738	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
675	/* any fence other than seq_cst, which isn't very efficient for us. */	758	/* any fence other than seq_cst, which isn't very efficient for us. */
676	/* Why that is, we don't know - either the C11 memory model is quite useless */	759	/* Why that is, we don't know - either the C11 memory model is quite useless */
677	/* for most usages, or gcc and clang have a bug */	760	/* for most usages, or gcc and clang have a bug */
678	/* I *currently* lean towards the latter, and inefficiently implement */	761	/* I *currently* lean towards the latter, and inefficiently implement */
679	/* all three of ecb's fences as a seq_cst fence */	762	/* all three of ecb's fences as a seq_cst fence */
		763	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		764	/* for all __atomic_thread_fence's except seq_cst */
680	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	765	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
681	#endif	766	#endif
682	#endif	767	#endif
683		768
684	#ifndef ECB_MEMORY_FENCE	769	#ifndef ECB_MEMORY_FENCE
…		…
707	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	792	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
708	#endif	793	#endif
709		794
710	/*****************************************************************************/	795	/*****************************************************************************/
711		796
712	#if __cplusplus	797	#if ECB_CPP
713	#define ecb_inline static inline	798	#define ecb_inline static inline
714	#elif ECB_GCC_VERSION(2,5)	799	#elif ECB_GCC_VERSION(2,5)
715	#define ecb_inline static __inline__	800	#define ecb_inline static __inline__
716	#elif ECB_C99	801	#elif ECB_C99
717	#define ecb_inline static inline	802	#define ecb_inline static inline
…		…
731		816
732	#define ECB_CONCAT_(a, b) a ## b	817	#define ECB_CONCAT_(a, b) a ## b
733	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	818	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
734	#define ECB_STRINGIFY_(a) # a	819	#define ECB_STRINGIFY_(a) # a
735	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	820	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
		821	#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
736		822
737	#define ecb_function_ ecb_inline	823	#define ecb_function_ ecb_inline
738		824
739	#if ECB_GCC_VERSION(3,1)	825	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
740	#define ecb_attribute(attrlist) __attribute__(attrlist)	826	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		827	#else
		828	#define ecb_attribute(attrlist)
		829	#endif
		830
		831	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
741	#define ecb_is_constant(expr) __builtin_constant_p (expr)	832	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		833	#else
		834	/* possible C11 impl for integral types
		835	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		836	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
		837
		838	#define ecb_is_constant(expr) 0
		839	#endif
		840
		841	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
742	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	842	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		843	#else
		844	#define ecb_expect(expr,value) (expr)
		845	#endif
		846
		847	#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
743	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	848	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
744	#else	849	#else
745	#define ecb_attribute(attrlist)
746	#define ecb_is_constant(expr) 0
747	#define ecb_expect(expr,value) (expr)
748	#define ecb_prefetch(addr,rw,locality)	850	#define ecb_prefetch(addr,rw,locality)
749	#endif	851	#endif
750		852
751	/* no emulation for ecb_decltype */	853	/* no emulation for ecb_decltype */
752	#if ECB_GCC_VERSION(4,5)	854	#if ECB_CPP11
		855	// older implementations might have problems with decltype(x)::type, work around it
		856	template<class T> struct ecb_decltype_t { typedef T type; };
753	#define ecb_decltype(x) __decltype(x)	857	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
754	#elif ECB_GCC_VERSION(3,0)	858	#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
755	#define ecb_decltype(x) __typeof(x)	859	#define ecb_decltype(x) __typeof__ (x)
756	#endif	860	#endif
757		861
		862	#if _MSC_VER >= 1300
		863	#define ecb_deprecated __declspec (deprecated)
		864	#else
		865	#define ecb_deprecated ecb_attribute ((__deprecated__))
		866	#endif
		867
		868	#if _MSC_VER >= 1500
		869	#define ecb_deprecated_message(msg) __declspec (deprecated (msg))
		870	#elif ECB_GCC_VERSION(4,5)
		871	#define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
		872	#else
		873	#define ecb_deprecated_message(msg) ecb_deprecated
		874	#endif
		875
		876	#if _MSC_VER >= 1400
		877	#define ecb_noinline __declspec (noinline)
		878	#else
758	#define ecb_noinline ecb_attribute ((__noinline__))	879	#define ecb_noinline ecb_attribute ((__noinline__))
		880	#endif
		881
759	#define ecb_unused ecb_attribute ((__unused__))	882	#define ecb_unused ecb_attribute ((__unused__))
760	#define ecb_const ecb_attribute ((__const__))	883	#define ecb_const ecb_attribute ((__const__))
761	#define ecb_pure ecb_attribute ((__pure__))	884	#define ecb_pure ecb_attribute ((__pure__))
762		885
763	#if ECB_C11	886	#if ECB_C11 || __IBMC_NORETURN
		887	/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
764	#define ecb_noreturn _Noreturn	888	#define ecb_noreturn _Noreturn
		889	#elif ECB_CPP11
		890	#define ecb_noreturn [[noreturn]]
		891	#elif _MSC_VER >= 1200
		892	/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
		893	#define ecb_noreturn __declspec (noreturn)
765	#else	894	#else
766	#define ecb_noreturn ecb_attribute ((__noreturn__))	895	#define ecb_noreturn ecb_attribute ((__noreturn__))
767	#endif	896	#endif
768		897
769	#if ECB_GCC_VERSION(4,3)	898	#if ECB_GCC_VERSION(4,3)
…		…
784	/* for compatibility to the rest of the world */	913	/* for compatibility to the rest of the world */
785	#define ecb_likely(expr) ecb_expect_true (expr)	914	#define ecb_likely(expr) ecb_expect_true (expr)
786	#define ecb_unlikely(expr) ecb_expect_false (expr)	915	#define ecb_unlikely(expr) ecb_expect_false (expr)
787		916
788	/* count trailing zero bits and count # of one bits */	917	/* count trailing zero bits and count # of one bits */
789	#if ECB_GCC_VERSION(3,4)	918	#if ECB_GCC_VERSION(3,4) \
		919	|| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		920	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		921	&& ECB_CLANG_BUILTIN(__builtin_popcount))
790	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	922	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
791	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	923	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
792	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	924	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
793	#define ecb_ctz32(x) __builtin_ctz (x)	925	#define ecb_ctz32(x) __builtin_ctz (x)
794	#define ecb_ctz64(x) __builtin_ctzll (x)	926	#define ecb_ctz64(x) __builtin_ctzll (x)
795	#define ecb_popcount32(x) __builtin_popcount (x)	927	#define ecb_popcount32(x) __builtin_popcount (x)
796	/* no popcountll */	928	/* no popcountll */
797	#else	929	#else
798	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	930	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
799	ecb_function_ int	931	ecb_function_ ecb_const int
800	ecb_ctz32 (uint32_t x)	932	ecb_ctz32 (uint32_t x)
801	{	933	{
		934	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		935	unsigned long r;
		936	_BitScanForward (&r, x);
		937	return (int)r;
		938	#else
802	int r = 0;	939	int r = 0;
803		940
804	x &= ~x + 1; /* this isolates the lowest bit */	941	x &= ~x + 1; /* this isolates the lowest bit */
805		942
806	#if ECB_branchless_on_i386	943	#if ECB_branchless_on_i386
…		…
816	if (x & 0xff00ff00) r += 8;	953	if (x & 0xff00ff00) r += 8;
817	if (x & 0xffff0000) r += 16;	954	if (x & 0xffff0000) r += 16;
818	#endif	955	#endif
819		956
820	return r;	957	return r;
		958	#endif
821	}	959	}
822		960
823	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	961	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
824	ecb_function_ int	962	ecb_function_ ecb_const int
825	ecb_ctz64 (uint64_t x)	963	ecb_ctz64 (uint64_t x)
826	{	964	{
		965	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		966	unsigned long r;
		967	_BitScanForward64 (&r, x);
		968	return (int)r;
		969	#else
827	int shift = x & 0xffffffffU ? 0 : 32;	970	int shift = x & 0xffffffff ? 0 : 32;
828	return ecb_ctz32 (x >> shift) + shift;	971	return ecb_ctz32 (x >> shift) + shift;
		972	#endif
829	}	973	}
830		974
831	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	975	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
832	ecb_function_ int	976	ecb_function_ ecb_const int
833	ecb_popcount32 (uint32_t x)	977	ecb_popcount32 (uint32_t x)
834	{	978	{
835	x -= (x >> 1) & 0x55555555;	979	x -= (x >> 1) & 0x55555555;
836	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	980	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
837	x = ((x >> 4) + x) & 0x0f0f0f0f;	981	x = ((x >> 4) + x) & 0x0f0f0f0f;
838	x *= 0x01010101;	982	x *= 0x01010101;
839		983
840	return x >> 24;	984	return x >> 24;
841	}	985	}
842		986
843	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	987	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
844	ecb_function_ int ecb_ld32 (uint32_t x)	988	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
845	{	989	{
		990	#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
		991	unsigned long r;
		992	_BitScanReverse (&r, x);
		993	return (int)r;
		994	#else
846	int r = 0;	995	int r = 0;
847		996
848	if (x >> 16) { x >>= 16; r += 16; }	997	if (x >> 16) { x >>= 16; r += 16; }
849	if (x >> 8) { x >>= 8; r += 8; }	998	if (x >> 8) { x >>= 8; r += 8; }
850	if (x >> 4) { x >>= 4; r += 4; }	999	if (x >> 4) { x >>= 4; r += 4; }
851	if (x >> 2) { x >>= 2; r += 2; }	1000	if (x >> 2) { x >>= 2; r += 2; }
852	if (x >> 1) { r += 1; }	1001	if (x >> 1) { r += 1; }
853		1002
854	return r;	1003	return r;
		1004	#endif
855	}	1005	}
856		1006
857	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	1007	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
858	ecb_function_ int ecb_ld64 (uint64_t x)	1008	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
859	{	1009	{
		1010	#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
		1011	unsigned long r;
		1012	_BitScanReverse64 (&r, x);
		1013	return (int)r;
		1014	#else
860	int r = 0;	1015	int r = 0;
861		1016
862	if (x >> 32) { x >>= 32; r += 32; }	1017	if (x >> 32) { x >>= 32; r += 32; }
863		1018
864	return r + ecb_ld32 (x);	1019	return r + ecb_ld32 (x);
		1020	#endif
865	}	1021	}
866	#endif	1022	#endif
867		1023
868	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	1024	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
869	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	1025	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
870	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	1026	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
871	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	1027	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
872		1028
873	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	1029	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
874	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	1030	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
875	{	1031	{
876	return ( (x * 0x0802U & 0x22110U)	1032	return ( (x * 0x0802U & 0x22110U)
877	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	1033	| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
878	}	1034	}
879		1035
880	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	1036	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
881	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	1037	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
882	{	1038	{
883	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);	1039	x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
884	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);	1040	x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
885	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);	1041	x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
886	x = ( x >> 8 ) | ( x << 8);	1042	x = ( x >> 8 ) | ( x << 8);
887		1043
888	return x;	1044	return x;
889	}	1045	}
890		1046
891	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	1047	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
892	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	1048	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
893	{	1049	{
894	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);	1050	x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
895	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);	1051	x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
896	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);	1052	x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
897	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);	1053	x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
…		…
900	return x;	1056	return x;
901	}	1057	}
902		1058
903	/* popcount64 is only available on 64 bit cpus as gcc builtin */	1059	/* popcount64 is only available on 64 bit cpus as gcc builtin */
904	/* so for this version we are lazy */	1060	/* so for this version we are lazy */
905	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	1061	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
906	ecb_function_ int	1062	ecb_function_ ecb_const int
907	ecb_popcount64 (uint64_t x)	1063	ecb_popcount64 (uint64_t x)
908	{	1064	{
909	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1065	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
910	}	1066	}
911		1067
912	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1068	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
913	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1069	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
914	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1070	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
915	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1071	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
916	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1072	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
917	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1073	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
918	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1074	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
919	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1075	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
920		1076
921	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }	1077	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
922	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }	1078	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
923	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }	1079	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
924	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }	1080	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
925	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }	1081	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
926	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }	1082	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
927	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }	1083	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
928	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }	1084	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
929		1085
930	#if ECB_GCC_VERSION(4,3)	1086	#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
		1087	#if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
		1088	#define ecb_bswap16(x) __builtin_bswap16 (x)
		1089	#else
931	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1090	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		1091	#endif
932	#define ecb_bswap32(x) __builtin_bswap32 (x)	1092	#define ecb_bswap32(x) __builtin_bswap32 (x)
933	#define ecb_bswap64(x) __builtin_bswap64 (x)	1093	#define ecb_bswap64(x) __builtin_bswap64 (x)
		1094	#elif _MSC_VER
		1095	#include <stdlib.h>
		1096	#define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
		1097	#define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
		1098	#define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
934	#else	1099	#else
935	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1100	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
936	ecb_function_ uint16_t	1101	ecb_function_ ecb_const uint16_t
937	ecb_bswap16 (uint16_t x)	1102	ecb_bswap16 (uint16_t x)
938	{	1103	{
939	return ecb_rotl16 (x, 8);	1104	return ecb_rotl16 (x, 8);
940	}	1105	}
941		1106
942	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1107	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
943	ecb_function_ uint32_t	1108	ecb_function_ ecb_const uint32_t
944	ecb_bswap32 (uint32_t x)	1109	ecb_bswap32 (uint32_t x)
945	{	1110	{
946	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);	1111	return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
947	}	1112	}
948		1113
949	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1114	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
950	ecb_function_ uint64_t	1115	ecb_function_ ecb_const uint64_t
951	ecb_bswap64 (uint64_t x)	1116	ecb_bswap64 (uint64_t x)
952	{	1117	{
953	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);	1118	return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
954	}	1119	}
955	#endif	1120	#endif
956		1121
957	#if ECB_GCC_VERSION(4,5)	1122	#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
958	#define ecb_unreachable() __builtin_unreachable ()	1123	#define ecb_unreachable() __builtin_unreachable ()
959	#else	1124	#else
960	/* this seems to work fine, but gcc always emits a warning for it :/ */	1125	/* this seems to work fine, but gcc always emits a warning for it :/ */
961	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1126	ecb_inline ecb_noreturn void ecb_unreachable (void);
962	ecb_inline void ecb_unreachable (void) { }	1127	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
963	#endif	1128	#endif
964		1129
965	/* try to tell the compiler that some condition is definitely true */	1130	/* try to tell the compiler that some condition is definitely true */
966	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0	1131	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
967		1132
968	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1133	ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
969	ecb_inline unsigned char	1134	ecb_inline ecb_const uint32_t
970	ecb_byteorder_helper (void)	1135	ecb_byteorder_helper (void)
971	{	1136	{
972	/* the union code still generates code under pressure in gcc, */	1137	/* the union code still generates code under pressure in gcc, */
973	/* but less than using pointers, and always seems to */	1138	/* but less than using pointers, and always seems to */
974	/* successfully return a constant. */	1139	/* successfully return a constant. */
975	/* the reason why we have this horrible preprocessor mess */	1140	/* the reason why we have this horrible preprocessor mess */
976	/* is to avoid it in all cases, at least on common architectures */	1141	/* is to avoid it in all cases, at least on common architectures */
977	/* or when using a recent enough gcc version (>= 4.6) */	1142	/* or when using a recent enough gcc version (>= 4.6) */
978	#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
979	return 0x44;
980	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__	1143	#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
		1144	|| ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
		1145	#define ECB_LITTLE_ENDIAN 1
981	return 0x44;	1146	return 0x44332211;
982	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__	1147	#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
		1148	|| ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
		1149	#define ECB_BIG_ENDIAN 1
983	return 0x11;	1150	return 0x11223344;
984	#else	1151	#else
985	union	1152	union
986	{	1153	{
		1154	uint8_t c[4];
987	uint32_t i;	1155	uint32_t u;
988	uint8_t c;
989	} u = { 0x11223344 };	1156	} u = { 0x11, 0x22, 0x33, 0x44 };
990	return u.c;	1157	return u.u;
991	#endif	1158	#endif
992	}	1159	}
993		1160
994	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1161	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
995	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1162	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
996	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1163	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
997	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1164	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
998		1165
999	#if ECB_GCC_VERSION(3,0) || ECB_C99	1166	#if ECB_GCC_VERSION(3,0) || ECB_C99
1000	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1167	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1001	#else	1168	#else
1002	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1169	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1003	#endif	1170	#endif
1004		1171
1005	#if __cplusplus	1172	#if ECB_CPP
1006	template<typename T>	1173	template<typename T>
1007	static inline T ecb_div_rd (T val, T div)	1174	static inline T ecb_div_rd (T val, T div)
1008	{	1175	{
1009	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1176	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1010	}	1177	}
…		…
1027	}	1194	}
1028	#else	1195	#else
1029	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1196	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1030	#endif	1197	#endif
1031		1198
		1199	ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
		1200	ecb_function_ ecb_const uint32_t
		1201	ecb_binary16_to_binary32 (uint32_t x)
		1202	{
		1203	unsigned int s = (x & 0x8000) << (31 - 15);
		1204	int e = (x >> 10) & 0x001f;
		1205	unsigned int m = x & 0x03ff;
		1206
		1207	if (ecb_expect_false (e == 31))
		1208	/* infinity or NaN */
		1209	e = 255 - (127 - 15);
		1210	else if (ecb_expect_false (!e))
		1211	{
		1212	if (ecb_expect_true (!m))
		1213	/* zero, handled by code below by forcing e to 0 */
		1214	e = 0 - (127 - 15);
		1215	else
		1216	{
		1217	/* subnormal, renormalise */
		1218	unsigned int s = 10 - ecb_ld32 (m);
		1219
		1220	m = (m << s) & 0x3ff; /* mask implicit bit */
		1221	e -= s - 1;
		1222	}
		1223	}
		1224
		1225	/* e and m now are normalised, or zero, (or inf or nan) */
		1226	e += 127 - 15;
		1227
		1228	return s | (e << 23) | (m << (23 - 10));
		1229	}
		1230
		1231	ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
		1232	ecb_function_ ecb_const uint16_t
		1233	ecb_binary32_to_binary16 (uint32_t x)
		1234	{
		1235	unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
		1236	unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
		1237	unsigned int m = x & 0x007fffff;
		1238
		1239	x &= 0x7fffffff;
		1240
		1241	/* if it's within range of binary16 normals, use fast path */
		1242	if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
		1243	{
		1244	/* mantissa round-to-even */
		1245	m += 0x00000fff + ((m >> (23 - 10)) & 1);
		1246
		1247	/* handle overflow */
		1248	if (ecb_expect_false (m >= 0x00800000))
		1249	{
		1250	m >>= 1;
		1251	e += 1;
		1252	}
		1253
		1254	return s | (e << 10) | (m >> (23 - 10));
		1255	}
		1256
		1257	/* handle large numbers and infinity */
		1258	if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
		1259	return s | 0x7c00;
		1260
		1261	/* handle zero, subnormals and small numbers */
		1262	if (ecb_expect_true (x < 0x38800000))
		1263	{
		1264	/* zero */
		1265	if (ecb_expect_true (!x))
		1266	return s;
		1267
		1268	/* handle subnormals */
		1269
		1270	/* too small, will be zero */
		1271	if (e < (14 - 24)) /* might not be sharp, but is good enough */
		1272	return s;
		1273
		1274	m |= 0x00800000; /* make implicit bit explicit */
		1275
		1276	/* very tricky - we need to round to the nearest e (+10) bit value */
		1277	{
		1278	unsigned int bits = 14 - e;
		1279	unsigned int half = (1 << (bits - 1)) - 1;
		1280	unsigned int even = (m >> bits) & 1;
		1281
		1282	/* if this overflows, we will end up with a normalised number */
		1283	m = (m + half + even) >> bits;
		1284	}
		1285
		1286	return s | m;
		1287	}
		1288
		1289	/* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
		1290	m >>= 13;
		1291
		1292	return s | 0x7c00 | m | !m;
		1293	}
		1294
1032	/*******************************************************************************/	1295	/*******************************************************************************/
1033	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */	1296	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1034		1297
1035	/* basically, everything uses "ieee pure-endian" floating point numbers */	1298	/* basically, everything uses "ieee pure-endian" floating point numbers */
1036	/* the only noteworthy exception is ancient armle, which uses order 43218765 */	1299	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1037	#if 0 \	1300	#if 0 \
1038	|| __i386 || __i386__ \	1301	|| __i386 || __i386__ \
1039	|| __amd64 || __amd64__ || __x86_64 || __x86_64__ \	1302	|| ECB_GCC_AMD64 \
1040	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \	1303	|| __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1041	|| defined __arm__ && defined __ARM_EABI__ \
1042	|| defined __s390__ || defined __s390x__ \	1304	|| defined __s390__ || defined __s390x__ \
1043	|| defined __mips__ \	1305	|| defined __mips__ \
1044	|| defined __alpha__ \	1306	|| defined __alpha__ \
1045	|| defined __hppa__ \	1307	|| defined __hppa__ \
1046	|| defined __ia64__ \	1308	|| defined __ia64__ \
		1309	|| defined __m68k__ \
		1310	|| defined __m88k__ \
		1311	|| defined __sh__ \
1047	|| defined _M_IX86 || defined _M_AMD64 || defined _M_IA64	1312	|| defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
		1313	|| (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
		1314	|| defined __aarch64__
1048	#define ECB_STDFP 1	1315	#define ECB_STDFP 1
1049	#include <string.h> /* for memcpy */	1316	#include <string.h> /* for memcpy */
1050	#else	1317	#else
1051	#define ECB_STDFP 0	1318	#define ECB_STDFP 0
1052	#include <math.h> /* for frexp*, ldexp* */
1053	#endif	1319	#endif
1054		1320
1055	#ifndef ECB_NO_LIBM	1321	#ifndef ECB_NO_LIBM
1056		1322
		1323	#include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
		1324
		1325	/* only the oldest of old doesn't have this one. solaris. */
		1326	#ifdef INFINITY
		1327	#define ECB_INFINITY INFINITY
		1328	#else
		1329	#define ECB_INFINITY HUGE_VAL
		1330	#endif
		1331
		1332	#ifdef NAN
		1333	#define ECB_NAN NAN
		1334	#else
		1335	#define ECB_NAN ECB_INFINITY
		1336	#endif
		1337
		1338	#if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
		1339	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
		1340	#define ecb_frexpf(x,e) frexpf ((x), (e))
		1341	#else
		1342	#define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
		1343	#define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
		1344	#endif
		1345
1057	/* convert a float to ieee single/binary32 */	1346	/* convert a float to ieee single/binary32 */
1058	ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;	1347	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1059	ecb_function_ uint32_t	1348	ecb_function_ ecb_const uint32_t
1060	ecb_float_to_binary32 (float x)	1349	ecb_float_to_binary32 (float x)
1061	{	1350	{
1062	uint32_t r;	1351	uint32_t r;
1063		1352
1064	#if ECB_STDFP	1353	#if ECB_STDFP
…		…
1071	if (x == 0e0f ) return 0x00000000U;	1360	if (x == 0e0f ) return 0x00000000U;
1072	if (x > +3.40282346638528860e+38f) return 0x7f800000U;	1361	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1073	if (x < -3.40282346638528860e+38f) return 0xff800000U;	1362	if (x < -3.40282346638528860e+38f) return 0xff800000U;
1074	if (x != x ) return 0x7fbfffffU;	1363	if (x != x ) return 0x7fbfffffU;
1075		1364
1076	m = frexpf (x, &e) * 0x1000000U;	1365	m = ecb_frexpf (x, &e) * 0x1000000U;
1077		1366
1078	r = m & 0x80000000U;	1367	r = m & 0x80000000U;
1079		1368
1080	if (r)	1369	if (r)
1081	m = -m;	1370	m = -m;
…		…
1093		1382
1094	return r;	1383	return r;
1095	}	1384	}
1096		1385
1097	/* converts an ieee single/binary32 to a float */	1386	/* converts an ieee single/binary32 to a float */
1098	ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;	1387	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1099	ecb_function_ float	1388	ecb_function_ ecb_const float
1100	ecb_binary32_to_float (uint32_t x)	1389	ecb_binary32_to_float (uint32_t x)
1101	{	1390	{
1102	float r;	1391	float r;
1103		1392
1104	#if ECB_STDFP	1393	#if ECB_STDFP
…		…
1114	x |= 0x800000U;	1403	x |= 0x800000U;
1115	else	1404	else
1116	e = 1;	1405	e = 1;
1117		1406
1118	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */	1407	/* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1119	r = ldexpf (x * (0.5f / 0x800000U), e - 126);	1408	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1120		1409
1121	r = neg ? -r : r;	1410	r = neg ? -r : r;
1122	#endif	1411	#endif
1123		1412
1124	return r;	1413	return r;
1125	}	1414	}
1126		1415
1127	/* convert a double to ieee double/binary64 */	1416	/* convert a double to ieee double/binary64 */
1128	ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;	1417	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1129	ecb_function_ uint64_t	1418	ecb_function_ ecb_const uint64_t
1130	ecb_double_to_binary64 (double x)	1419	ecb_double_to_binary64 (double x)
1131	{	1420	{
1132	uint64_t r;	1421	uint64_t r;
1133		1422
1134	#if ECB_STDFP	1423	#if ECB_STDFP
…		…
1163		1452
1164	return r;	1453	return r;
1165	}	1454	}
1166		1455
1167	/* converts an ieee double/binary64 to a double */	1456	/* converts an ieee double/binary64 to a double */
1168	ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;	1457	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1169	ecb_function_ double	1458	ecb_function_ ecb_const double
1170	ecb_binary64_to_double (uint64_t x)	1459	ecb_binary64_to_double (uint64_t x)
1171	{	1460	{
1172	double r;	1461	double r;
1173		1462
1174	#if ECB_STDFP	1463	#if ECB_STDFP
…		…
1190		1479
1191	r = neg ? -r : r;	1480	r = neg ? -r : r;
1192	#endif	1481	#endif
1193		1482
1194	return r;	1483	return r;
		1484	}
		1485
		1486	/* convert a float to ieee half/binary16 */
		1487	ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
		1488	ecb_function_ ecb_const uint16_t
		1489	ecb_float_to_binary16 (float x)
		1490	{
		1491	return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
		1492	}
		1493
		1494	/* convert an ieee half/binary16 to float */
		1495	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1496	ecb_function_ ecb_const float
		1497	ecb_binary16_to_float (uint16_t x)
		1498	{
		1499	return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1195	}	1500	}
1196		1501
1197	#endif	1502	#endif
1198		1503
1199	#endif	1504	#endif
…		…
1224	#define inline_size ecb_inline	1529	#define inline_size ecb_inline
1225		1530
1226	#if EV_FEATURE_CODE	1531	#if EV_FEATURE_CODE
1227	# define inline_speed ecb_inline	1532	# define inline_speed ecb_inline
1228	#else	1533	#else
1229	# define inline_speed static noinline	1534	# define inline_speed noinline static
1230	#endif	1535	#endif
1231		1536
1232	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	1537	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1233		1538
1234	#if EV_MINPRI == EV_MAXPRI	1539	#if EV_MINPRI == EV_MAXPRI
…		…
1281	#else	1586	#else
1282		1587
1283	#include <float.h>	1588	#include <float.h>
1284		1589
1285	/* a floor() replacement function, should be independent of ev_tstamp type */	1590	/* a floor() replacement function, should be independent of ev_tstamp type */
		1591	noinline
1286	static ev_tstamp noinline	1592	static ev_tstamp
1287	ev_floor (ev_tstamp v)	1593	ev_floor (ev_tstamp v)
1288	{	1594	{
1289	/* the choice of shift factor is not terribly important */	1595	/* the choice of shift factor is not terribly important */
1290	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */	1596	#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1291	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;	1597	const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
…		…
1323		1629
1324	#ifdef __linux	1630	#ifdef __linux
1325	# include <sys/utsname.h>	1631	# include <sys/utsname.h>
1326	#endif	1632	#endif
1327		1633
1328	static unsigned int noinline ecb_cold	1634	noinline ecb_cold
		1635	static unsigned int
1329	ev_linux_version (void)	1636	ev_linux_version (void)
1330	{	1637	{
1331	#ifdef __linux	1638	#ifdef __linux
1332	unsigned int v = 0;	1639	unsigned int v = 0;
1333	struct utsname buf;	1640	struct utsname buf;
…		…
1362	}	1669	}
1363		1670
1364	/*****************************************************************************/	1671	/*****************************************************************************/
1365		1672
1366	#if EV_AVOID_STDIO	1673	#if EV_AVOID_STDIO
1367	static void noinline ecb_cold	1674	noinline ecb_cold
		1675	static void
1368	ev_printerr (const char *msg)	1676	ev_printerr (const char *msg)
1369	{	1677	{
1370	write (STDERR_FILENO, msg, strlen (msg));	1678	write (STDERR_FILENO, msg, strlen (msg));
1371	}	1679	}
1372	#endif	1680	#endif
1373		1681
1374	static void (*syserr_cb)(const char *msg) EV_THROW;	1682	static void (*syserr_cb)(const char *msg) EV_THROW;
1375		1683
1376	void ecb_cold	1684	ecb_cold
		1685	void
1377	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW	1686	ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1378	{	1687	{
1379	syserr_cb = cb;	1688	syserr_cb = cb;
1380	}	1689	}
1381		1690
1382	static void noinline ecb_cold	1691	noinline ecb_cold
		1692	static void
1383	ev_syserr (const char *msg)	1693	ev_syserr (const char *msg)
1384	{	1694	{
1385	if (!msg)	1695	if (!msg)
1386	msg = "(libev) system error";	1696	msg = "(libev) system error";
1387		1697
…		…
1418	return 0;	1728	return 0;
1419	}	1729	}
1420		1730
1421	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1731	static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1422		1732
1423	void ecb_cold	1733	ecb_cold
		1734	void
1424	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW	1735	ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1425	{	1736	{
1426	alloc = cb;	1737	alloc = cb;
1427	}	1738	}
1428		1739
…		…
1597	struct timespec ts;	1908	struct timespec ts;
1598		1909
1599	EV_TS_SET (ts, delay);	1910	EV_TS_SET (ts, delay);
1600	nanosleep (&ts, 0);	1911	nanosleep (&ts, 0);
1601	#elif defined _WIN32	1912	#elif defined _WIN32
		1913	/* maybe this should round up, as ms is very low resolution */
		1914	/* compared to select (µs) or nanosleep (ns) */
1602	Sleep ((unsigned long)(delay * 1e3));	1915	Sleep ((unsigned long)(delay * 1e3));
1603	#else	1916	#else
1604	struct timeval tv;	1917	struct timeval tv;
1605		1918
1606	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */	1919	/* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
…		…
1637	}	1950	}
1638		1951
1639	return ncur;	1952	return ncur;
1640	}	1953	}
1641		1954
1642	static void * noinline ecb_cold	1955	noinline ecb_cold
		1956	static void *
1643	array_realloc (int elem, void *base, int *cur, int cnt)	1957	array_realloc (int elem, void *base, int *cur, int cnt)
1644	{	1958	{
1645	*cur = array_nextsize (elem, *cur, cnt);	1959	*cur = array_nextsize (elem, *cur, cnt);
1646	return ev_realloc (base, elem * *cur);	1960	return ev_realloc (base, elem * *cur);
1647	}	1961	}
…		…
1650	memset ((void *)(base), 0, sizeof (*(base)) * (count))	1964	memset ((void *)(base), 0, sizeof (*(base)) * (count))
1651		1965
1652	#define array_needsize(type,base,cur,cnt,init) \	1966	#define array_needsize(type,base,cur,cnt,init) \
1653	if (expect_false ((cnt) > (cur))) \	1967	if (expect_false ((cnt) > (cur))) \
1654	{ \	1968	{ \
1655	int ecb_unused ocur_ = (cur); \	1969	ecb_unused int ocur_ = (cur); \
1656	(base) = (type *)array_realloc \	1970	(base) = (type *)array_realloc \
1657	(sizeof (type), (base), &(cur), (cnt)); \	1971	(sizeof (type), (base), &(cur), (cnt)); \
1658	init ((base) + (ocur_), (cur) - ocur_); \	1972	init ((base) + (ocur_), (cur) - ocur_); \
1659	}	1973	}
1660		1974
…		…
1672	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0	1986	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1673		1987
1674	/*****************************************************************************/	1988	/*****************************************************************************/
1675		1989
1676	/* dummy callback for pending events */	1990	/* dummy callback for pending events */
1677	static void noinline	1991	noinline
		1992	static void
1678	pendingcb (EV_P_ ev_prepare *w, int revents)	1993	pendingcb (EV_P_ ev_prepare *w, int revents)
1679	{	1994	{
1680	}	1995	}
1681		1996
1682	void noinline	1997	noinline
		1998	void
1683	ev_feed_event (EV_P_ void *w, int revents) EV_THROW	1999	ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1684	{	2000	{
1685	W w_ = (W)w;	2001	W w_ = (W)w;
1686	int pri = ABSPRI (w_);	2002	int pri = ABSPRI (w_);
1687		2003
…		…
1817		2133
1818	fdchangecnt = 0;	2134	fdchangecnt = 0;
1819	}	2135	}
1820		2136
1821	/* something about the given fd changed */	2137	/* something about the given fd changed */
1822	inline_size void	2138	inline_size
		2139	void
1823	fd_change (EV_P_ int fd, int flags)	2140	fd_change (EV_P_ int fd, int flags)
1824	{	2141	{
1825	unsigned char reify = anfds [fd].reify;	2142	unsigned char reify = anfds [fd].reify;
1826	anfds [fd].reify |= flags;	2143	anfds [fd].reify |= flags;
1827		2144
…		…
1832	fdchanges [fdchangecnt - 1] = fd;	2149	fdchanges [fdchangecnt - 1] = fd;
1833	}	2150	}
1834	}	2151	}
1835		2152
1836	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */	2153	/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1837	inline_speed void ecb_cold	2154	inline_speed ecb_cold void
1838	fd_kill (EV_P_ int fd)	2155	fd_kill (EV_P_ int fd)
1839	{	2156	{
1840	ev_io *w;	2157	ev_io *w;
1841		2158
1842	while ((w = (ev_io *)anfds [fd].head))	2159	while ((w = (ev_io *)anfds [fd].head))
…		…
1845	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	2162	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1846	}	2163	}
1847	}	2164	}
1848		2165
1849	/* check whether the given fd is actually valid, for error recovery */	2166	/* check whether the given fd is actually valid, for error recovery */
1850	inline_size int ecb_cold	2167	inline_size ecb_cold int
1851	fd_valid (int fd)	2168	fd_valid (int fd)
1852	{	2169	{
1853	#ifdef _WIN32	2170	#ifdef _WIN32
1854	return EV_FD_TO_WIN32_HANDLE (fd) != -1;	2171	return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1855	#else	2172	#else
1856	return fcntl (fd, F_GETFD) != -1;	2173	return fcntl (fd, F_GETFD) != -1;
1857	#endif	2174	#endif
1858	}	2175	}
1859		2176
1860	/* called on EBADF to verify fds */	2177	/* called on EBADF to verify fds */
1861	static void noinline ecb_cold	2178	noinline ecb_cold
		2179	static void
1862	fd_ebadf (EV_P)	2180	fd_ebadf (EV_P)
1863	{	2181	{
1864	int fd;	2182	int fd;
1865		2183
1866	for (fd = 0; fd < anfdmax; ++fd)	2184	for (fd = 0; fd < anfdmax; ++fd)
…		…
1868	if (!fd_valid (fd) && errno == EBADF)	2186	if (!fd_valid (fd) && errno == EBADF)
1869	fd_kill (EV_A_ fd);	2187	fd_kill (EV_A_ fd);
1870	}	2188	}
1871		2189
1872	/* called on ENOMEM in select/poll to kill some fds and retry */	2190	/* called on ENOMEM in select/poll to kill some fds and retry */
1873	static void noinline ecb_cold	2191	noinline ecb_cold
		2192	static void
1874	fd_enomem (EV_P)	2193	fd_enomem (EV_P)
1875	{	2194	{
1876	int fd;	2195	int fd;
1877		2196
1878	for (fd = anfdmax; fd--; )	2197	for (fd = anfdmax; fd--; )
…		…
1882	break;	2201	break;
1883	}	2202	}
1884	}	2203	}
1885		2204
1886	/* usually called after fork if backend needs to re-arm all fds from scratch */	2205	/* usually called after fork if backend needs to re-arm all fds from scratch */
1887	static void noinline	2206	noinline
		2207	static void
1888	fd_rearm_all (EV_P)	2208	fd_rearm_all (EV_P)
1889	{	2209	{
1890	int fd;	2210	int fd;
1891		2211
1892	for (fd = 0; fd < anfdmax; ++fd)	2212	for (fd = 0; fd < anfdmax; ++fd)
…		…
2073		2393
2074	/*****************************************************************************/	2394	/*****************************************************************************/
2075		2395
2076	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	2396	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2077		2397
2078	static void noinline ecb_cold	2398	noinline ecb_cold
		2399	static void
2079	evpipe_init (EV_P)	2400	evpipe_init (EV_P)
2080	{	2401	{
2081	if (!ev_is_active (&pipe_w))	2402	if (!ev_is_active (&pipe_w))
2082	{	2403	{
2083	int fds [2];	2404	int fds [2];
…		…
2094	while (pipe (fds))	2415	while (pipe (fds))
2095	ev_syserr ("(libev) error creating signal/async pipe");	2416	ev_syserr ("(libev) error creating signal/async pipe");
2096		2417
2097	fd_intern (fds [0]);	2418	fd_intern (fds [0]);
2098	}	2419	}
2099
2100	fd_intern (fds [1]);
2101		2420
2102	evpipe [0] = fds [0];	2421	evpipe [0] = fds [0];
2103		2422
2104	if (evpipe [1] < 0)	2423	if (evpipe [1] < 0)
2105	evpipe [1] = fds [1]; /* first call, set write fd */	2424	evpipe [1] = fds [1]; /* first call, set write fd */
…		…
2111	/* so must not be executed on windows */	2430	/* so must not be executed on windows */
2112		2431
2113	dup2 (fds [1], evpipe [1]);	2432	dup2 (fds [1], evpipe [1]);
2114	close (fds [1]);	2433	close (fds [1]);
2115	}	2434	}
		2435
		2436	fd_intern (evpipe [1]);
2116		2437
2117	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);	2438	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2118	ev_io_start (EV_A_ &pipe_w);	2439	ev_io_start (EV_A_ &pipe_w);
2119	ev_unref (EV_A); /* watcher should not keep loop alive */	2440	ev_unref (EV_A); /* watcher should not keep loop alive */
2120	}	2441	}
…		…
2239		2560
2240	void	2561	void
2241	ev_feed_signal (int signum) EV_THROW	2562	ev_feed_signal (int signum) EV_THROW
2242	{	2563	{
2243	#if EV_MULTIPLICITY	2564	#if EV_MULTIPLICITY
		2565	EV_P;
2244	ECB_MEMORY_FENCE_ACQUIRE;	2566	ECB_MEMORY_FENCE_ACQUIRE;
2245	EV_P = signals [signum - 1].loop;	2567	EV_A = signals [signum - 1].loop;
2246		2568
2247	if (!EV_A)	2569	if (!EV_A)
2248	return;	2570	return;
2249	#endif	2571	#endif
2250		2572
…		…
2260	#endif	2582	#endif
2261		2583
2262	ev_feed_signal (signum);	2584	ev_feed_signal (signum);
2263	}	2585	}
2264		2586
2265	void noinline	2587	noinline
		2588	void
2266	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2589	ev_feed_signal_event (EV_P_ int signum) EV_THROW
2267	{	2590	{
2268	WL w;	2591	WL w;
2269		2592
2270	if (expect_false (signum <= 0 || signum >= EV_NSIG))	2593	if (expect_false (signum <= 0 || signum >= EV_NSIG))
…		…
2387	#endif	2710	#endif
2388	#if EV_USE_SELECT	2711	#if EV_USE_SELECT
2389	# include "ev_select.c"	2712	# include "ev_select.c"
2390	#endif	2713	#endif
2391		2714
2392	int ecb_cold	2715	ecb_cold int
2393	ev_version_major (void) EV_THROW	2716	ev_version_major (void) EV_THROW
2394	{	2717	{
2395	return EV_VERSION_MAJOR;	2718	return EV_VERSION_MAJOR;
2396	}	2719	}
2397		2720
2398	int ecb_cold	2721	ecb_cold int
2399	ev_version_minor (void) EV_THROW	2722	ev_version_minor (void) EV_THROW
2400	{	2723	{
2401	return EV_VERSION_MINOR;	2724	return EV_VERSION_MINOR;
2402	}	2725	}
2403		2726
2404	/* return true if we are running with elevated privileges and should ignore env variables */	2727	/* return true if we are running with elevated privileges and should ignore env variables */
2405	int inline_size ecb_cold	2728	inline_size ecb_cold int
2406	enable_secure (void)	2729	enable_secure (void)
2407	{	2730	{
2408	#ifdef _WIN32	2731	#ifdef _WIN32
2409	return 0;	2732	return 0;
2410	#else	2733	#else
2411	return getuid () != geteuid ()	2734	return getuid () != geteuid ()
2412	|| getgid () != getegid ();	2735	|| getgid () != getegid ();
2413	#endif	2736	#endif
2414	}	2737	}
2415		2738
2416	unsigned int ecb_cold	2739	ecb_cold
		2740	unsigned int
2417	ev_supported_backends (void) EV_THROW	2741	ev_supported_backends (void) EV_THROW
2418	{	2742	{
2419	unsigned int flags = 0;	2743	unsigned int flags = 0;
2420		2744
2421	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;	2745	if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
…		…
2425	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;	2749	if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2426		2750
2427	return flags;	2751	return flags;
2428	}	2752	}
2429		2753
2430	unsigned int ecb_cold	2754	ecb_cold
		2755	unsigned int
2431	ev_recommended_backends (void) EV_THROW	2756	ev_recommended_backends (void) EV_THROW
2432	{	2757	{
2433	unsigned int flags = ev_supported_backends ();	2758	unsigned int flags = ev_supported_backends ();
2434		2759
2435	#ifndef __NetBSD__	2760	#ifndef __NetBSD__
…		…
2447	#endif	2772	#endif
2448		2773
2449	return flags;	2774	return flags;
2450	}	2775	}
2451		2776
2452	unsigned int ecb_cold	2777	ecb_cold
		2778	unsigned int
2453	ev_embeddable_backends (void) EV_THROW	2779	ev_embeddable_backends (void) EV_THROW
2454	{	2780	{
2455	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;	2781	int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2456		2782
2457	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */	2783	/* epoll embeddability broken on all linux versions up to at least 2.6.23 */
…		…
2503	{	2829	{
2504	return userdata;	2830	return userdata;
2505	}	2831	}
2506		2832
2507	void	2833	void
2508	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW	2834	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2509	{	2835	{
2510	invoke_cb = invoke_pending_cb;	2836	invoke_cb = invoke_pending_cb;
2511	}	2837	}
2512		2838
2513	void	2839	void
…		…
2517	acquire_cb = acquire;	2843	acquire_cb = acquire;
2518	}	2844	}
2519	#endif	2845	#endif
2520		2846
2521	/* initialise a loop structure, must be zero-initialised */	2847	/* initialise a loop structure, must be zero-initialised */
2522	static void noinline ecb_cold	2848	noinline ecb_cold
		2849	static void
2523	loop_init (EV_P_ unsigned int flags) EV_THROW	2850	loop_init (EV_P_ unsigned int flags) EV_THROW
2524	{	2851	{
2525	if (!backend)	2852	if (!backend)
2526	{	2853	{
2527	origflags = flags;	2854	origflags = flags;
…		…
2614	#endif	2941	#endif
2615	}	2942	}
2616	}	2943	}
2617		2944
2618	/* free up a loop structure */	2945	/* free up a loop structure */
2619	void ecb_cold	2946	ecb_cold
		2947	void
2620	ev_loop_destroy (EV_P)	2948	ev_loop_destroy (EV_P)
2621	{	2949	{
2622	int i;	2950	int i;
2623		2951
2624	#if EV_MULTIPLICITY	2952	#if EV_MULTIPLICITY
…		…
2745	#if EV_USE_INOTIFY	3073	#if EV_USE_INOTIFY
2746	infy_fork (EV_A);	3074	infy_fork (EV_A);
2747	#endif	3075	#endif
2748		3076
2749	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE	3077	#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2750	if (ev_is_active (&pipe_w))	3078	if (ev_is_active (&pipe_w) && postfork != 2)
2751	{	3079	{
2752	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	3080	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2753		3081
2754	ev_ref (EV_A);	3082	ev_ref (EV_A);
2755	ev_io_stop (EV_A_ &pipe_w);	3083	ev_io_stop (EV_A_ &pipe_w);
…		…
2766	postfork = 0;	3094	postfork = 0;
2767	}	3095	}
2768		3096
2769	#if EV_MULTIPLICITY	3097	#if EV_MULTIPLICITY
2770		3098
		3099	ecb_cold
2771	struct ev_loop * ecb_cold	3100	struct ev_loop *
2772	ev_loop_new (unsigned int flags) EV_THROW	3101	ev_loop_new (unsigned int flags) EV_THROW
2773	{	3102	{
2774	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));	3103	EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2775		3104
2776	memset (EV_A, 0, sizeof (struct ev_loop));	3105	memset (EV_A, 0, sizeof (struct ev_loop));
…		…
2784	}	3113	}
2785		3114
2786	#endif /* multiplicity */	3115	#endif /* multiplicity */
2787		3116
2788	#if EV_VERIFY	3117	#if EV_VERIFY
2789	static void noinline ecb_cold	3118	noinline ecb_cold
		3119	static void
2790	verify_watcher (EV_P_ W w)	3120	verify_watcher (EV_P_ W w)
2791	{	3121	{
2792	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));	3122	assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2793		3123
2794	if (w->pending)	3124	if (w->pending)
2795	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));	3125	assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2796	}	3126	}
2797		3127
2798	static void noinline ecb_cold	3128	noinline ecb_cold
		3129	static void
2799	verify_heap (EV_P_ ANHE *heap, int N)	3130	verify_heap (EV_P_ ANHE *heap, int N)
2800	{	3131	{
2801	int i;	3132	int i;
2802		3133
2803	for (i = HEAP0; i < N + HEAP0; ++i)	3134	for (i = HEAP0; i < N + HEAP0; ++i)
…		…
2808		3139
2809	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));	3140	verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2810	}	3141	}
2811	}	3142	}
2812		3143
2813	static void noinline ecb_cold	3144	noinline ecb_cold
		3145	static void
2814	array_verify (EV_P_ W *ws, int cnt)	3146	array_verify (EV_P_ W *ws, int cnt)
2815	{	3147	{
2816	while (cnt--)	3148	while (cnt--)
2817	{	3149	{
2818	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));	3150	assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
…		…
2907	#endif	3239	#endif
2908	}	3240	}
2909	#endif	3241	#endif
2910		3242
2911	#if EV_MULTIPLICITY	3243	#if EV_MULTIPLICITY
		3244	ecb_cold
2912	struct ev_loop * ecb_cold	3245	struct ev_loop *
2913	#else	3246	#else
2914	int	3247	int
2915	#endif	3248	#endif
2916	ev_default_loop (unsigned int flags) EV_THROW	3249	ev_default_loop (unsigned int flags) EV_THROW
2917	{	3250	{
…		…
2965	count += pendingcnt [pri];	3298	count += pendingcnt [pri];
2966		3299
2967	return count;	3300	return count;
2968	}	3301	}
2969		3302
2970	void noinline	3303	noinline
		3304	void
2971	ev_invoke_pending (EV_P)	3305	ev_invoke_pending (EV_P)
2972	{	3306	{
2973	pendingpri = NUMPRI;	3307	pendingpri = NUMPRI;
2974		3308
2975	while (pendingpri) /* pendingpri possibly gets modified in the inner loop */	3309	do
2976	{	3310	{
2977	--pendingpri;	3311	--pendingpri;
2978		3312
		3313	/* pendingpri possibly gets modified in the inner loop */
2979	while (pendingcnt [pendingpri])	3314	while (pendingcnt [pendingpri])
2980	{	3315	{
2981	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];	3316	ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2982		3317
2983	p->w->pending = 0;	3318	p->w->pending = 0;
2984	EV_CB_INVOKE (p->w, p->events);	3319	EV_CB_INVOKE (p->w, p->events);
2985	EV_FREQUENT_CHECK;	3320	EV_FREQUENT_CHECK;
2986	}	3321	}
2987	}	3322	}
		3323	while (pendingpri);
2988	}	3324	}
2989		3325
2990	#if EV_IDLE_ENABLE	3326	#if EV_IDLE_ENABLE
2991	/* make idle watchers pending. this handles the "call-idle */	3327	/* make idle watchers pending. this handles the "call-idle */
2992	/* only when higher priorities are idle" logic */	3328	/* only when higher priorities are idle" logic */
…		…
3050	}	3386	}
3051	}	3387	}
3052		3388
3053	#if EV_PERIODIC_ENABLE	3389	#if EV_PERIODIC_ENABLE
3054		3390
3055	static void noinline	3391	noinline
		3392	static void
3056	periodic_recalc (EV_P_ ev_periodic *w)	3393	periodic_recalc (EV_P_ ev_periodic *w)
3057	{	3394	{
3058	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;	3395	ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3059	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);	3396	ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3060		3397
…		…
3118	}	3455	}
3119	}	3456	}
3120		3457
3121	/* simply recalculate all periodics */	3458	/* simply recalculate all periodics */
3122	/* TODO: maybe ensure that at least one event happens when jumping forward? */	3459	/* TODO: maybe ensure that at least one event happens when jumping forward? */
3123	static void noinline ecb_cold	3460	noinline ecb_cold
		3461	static void
3124	periodics_reschedule (EV_P)	3462	periodics_reschedule (EV_P)
3125	{	3463	{
3126	int i;	3464	int i;
3127		3465
3128	/* adjust periodics after time jump */	3466	/* adjust periodics after time jump */
…		…
3141	reheap (periodics, periodiccnt);	3479	reheap (periodics, periodiccnt);
3142	}	3480	}
3143	#endif	3481	#endif
3144		3482
3145	/* adjust all timers by a given offset */	3483	/* adjust all timers by a given offset */
3146	static void noinline ecb_cold	3484	noinline ecb_cold
		3485	static void
3147	timers_reschedule (EV_P_ ev_tstamp adjust)	3486	timers_reschedule (EV_P_ ev_tstamp adjust)
3148	{	3487	{
3149	int i;	3488	int i;
3150		3489
3151	for (i = 0; i < timercnt; ++i)	3490	for (i = 0; i < timercnt; ++i)
…		…
3519	w->active = 0;	3858	w->active = 0;
3520	}	3859	}
3521		3860
3522	/*****************************************************************************/	3861	/*****************************************************************************/
3523		3862
3524	void noinline	3863	noinline
		3864	void
3525	ev_io_start (EV_P_ ev_io *w) EV_THROW	3865	ev_io_start (EV_P_ ev_io *w) EV_THROW
3526	{	3866	{
3527	int fd = w->fd;	3867	int fd = w->fd;
3528		3868
3529	if (expect_false (ev_is_active (w)))	3869	if (expect_false (ev_is_active (w)))
…		…
3545	w->events &= ~EV__IOFDSET;	3885	w->events &= ~EV__IOFDSET;
3546		3886
3547	EV_FREQUENT_CHECK;	3887	EV_FREQUENT_CHECK;
3548	}	3888	}
3549		3889
3550	void noinline	3890	noinline
		3891	void
3551	ev_io_stop (EV_P_ ev_io *w) EV_THROW	3892	ev_io_stop (EV_P_ ev_io *w) EV_THROW
3552	{	3893	{
3553	clear_pending (EV_A_ (W)w);	3894	clear_pending (EV_A_ (W)w);
3554	if (expect_false (!ev_is_active (w)))	3895	if (expect_false (!ev_is_active (w)))
3555	return;	3896	return;
…		…
3564	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);	3905	fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3565		3906
3566	EV_FREQUENT_CHECK;	3907	EV_FREQUENT_CHECK;
3567	}	3908	}
3568		3909
3569	void noinline	3910	noinline
		3911	void
3570	ev_timer_start (EV_P_ ev_timer *w) EV_THROW	3912	ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3571	{	3913	{
3572	if (expect_false (ev_is_active (w)))	3914	if (expect_false (ev_is_active (w)))
3573	return;	3915	return;
3574		3916
…		…
3588	EV_FREQUENT_CHECK;	3930	EV_FREQUENT_CHECK;
3589		3931
3590	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/	3932	/*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3591	}	3933	}
3592		3934
3593	void noinline	3935	noinline
		3936	void
3594	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW	3937	ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3595	{	3938	{
3596	clear_pending (EV_A_ (W)w);	3939	clear_pending (EV_A_ (W)w);
3597	if (expect_false (!ev_is_active (w)))	3940	if (expect_false (!ev_is_active (w)))
3598	return;	3941	return;
…		…
3618	ev_stop (EV_A_ (W)w);	3961	ev_stop (EV_A_ (W)w);
3619		3962
3620	EV_FREQUENT_CHECK;	3963	EV_FREQUENT_CHECK;
3621	}	3964	}
3622		3965
3623	void noinline	3966	noinline
		3967	void
3624	ev_timer_again (EV_P_ ev_timer *w) EV_THROW	3968	ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3625	{	3969	{
3626	EV_FREQUENT_CHECK;	3970	EV_FREQUENT_CHECK;
3627		3971
3628	clear_pending (EV_A_ (W)w);	3972	clear_pending (EV_A_ (W)w);
…		…
3652	{	3996	{
3653	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);	3997	return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3654	}	3998	}
3655		3999
3656	#if EV_PERIODIC_ENABLE	4000	#if EV_PERIODIC_ENABLE
3657	void noinline	4001	noinline
		4002	void
3658	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW	4003	ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3659	{	4004	{
3660	if (expect_false (ev_is_active (w)))	4005	if (expect_false (ev_is_active (w)))
3661	return;	4006	return;
3662		4007
…		…
3682	EV_FREQUENT_CHECK;	4027	EV_FREQUENT_CHECK;
3683		4028
3684	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/	4029	/*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3685	}	4030	}
3686		4031
3687	void noinline	4032	noinline
		4033	void
3688	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW	4034	ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3689	{	4035	{
3690	clear_pending (EV_A_ (W)w);	4036	clear_pending (EV_A_ (W)w);
3691	if (expect_false (!ev_is_active (w)))	4037	if (expect_false (!ev_is_active (w)))
3692	return;	4038	return;
…		…
3710	ev_stop (EV_A_ (W)w);	4056	ev_stop (EV_A_ (W)w);
3711		4057
3712	EV_FREQUENT_CHECK;	4058	EV_FREQUENT_CHECK;
3713	}	4059	}
3714		4060
3715	void noinline	4061	noinline
		4062	void
3716	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW	4063	ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3717	{	4064	{
3718	/* TODO: use adjustheap and recalculation */	4065	/* TODO: use adjustheap and recalculation */
3719	ev_periodic_stop (EV_A_ w);	4066	ev_periodic_stop (EV_A_ w);
3720	ev_periodic_start (EV_A_ w);	4067	ev_periodic_start (EV_A_ w);
…		…
3725	# define SA_RESTART 0	4072	# define SA_RESTART 0
3726	#endif	4073	#endif
3727		4074
3728	#if EV_SIGNAL_ENABLE	4075	#if EV_SIGNAL_ENABLE
3729		4076
3730	void noinline	4077	noinline
		4078	void
3731	ev_signal_start (EV_P_ ev_signal *w) EV_THROW	4079	ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3732	{	4080	{
3733	if (expect_false (ev_is_active (w)))	4081	if (expect_false (ev_is_active (w)))
3734	return;	4082	return;
3735		4083
…		…
3807	}	4155	}
3808		4156
3809	EV_FREQUENT_CHECK;	4157	EV_FREQUENT_CHECK;
3810	}	4158	}
3811		4159
3812	void noinline	4160	noinline
		4161	void
3813	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW	4162	ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3814	{	4163	{
3815	clear_pending (EV_A_ (W)w);	4164	clear_pending (EV_A_ (W)w);
3816	if (expect_false (!ev_is_active (w)))	4165	if (expect_false (!ev_is_active (w)))
3817	return;	4166	return;
…		…
3893		4242
3894	#define DEF_STAT_INTERVAL 5.0074891	4243	#define DEF_STAT_INTERVAL 5.0074891
3895	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */	4244	#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3896	#define MIN_STAT_INTERVAL 0.1074891	4245	#define MIN_STAT_INTERVAL 0.1074891
3897		4246
3898	static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);	4247	noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3899		4248
3900	#if EV_USE_INOTIFY	4249	#if EV_USE_INOTIFY
3901		4250
3902	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */	4251	/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3903	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4252	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3904		4253
3905	static void noinline	4254	noinline
		4255	static void
3906	infy_add (EV_P_ ev_stat *w)	4256	infy_add (EV_P_ ev_stat *w)
3907	{	4257	{
3908	w->wd = inotify_add_watch (fs_fd, w->path,	4258	w->wd = inotify_add_watch (fs_fd, w->path,
3909	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY	4259	IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3910	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO	4260	| IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
…		…
3974	if (ev_is_active (&w->timer)) ev_ref (EV_A);	4324	if (ev_is_active (&w->timer)) ev_ref (EV_A);
3975	ev_timer_again (EV_A_ &w->timer);	4325	ev_timer_again (EV_A_ &w->timer);
3976	if (ev_is_active (&w->timer)) ev_unref (EV_A);	4326	if (ev_is_active (&w->timer)) ev_unref (EV_A);
3977	}	4327	}
3978		4328
3979	static void noinline	4329	noinline
		4330	static void
3980	infy_del (EV_P_ ev_stat *w)	4331	infy_del (EV_P_ ev_stat *w)
3981	{	4332	{
3982	int slot;	4333	int slot;
3983	int wd = w->wd;	4334	int wd = w->wd;
3984		4335
…		…
3991		4342
3992	/* remove this watcher, if others are watching it, they will rearm */	4343	/* remove this watcher, if others are watching it, they will rearm */
3993	inotify_rm_watch (fs_fd, wd);	4344	inotify_rm_watch (fs_fd, wd);
3994	}	4345	}
3995		4346
3996	static void noinline	4347	noinline
		4348	static void
3997	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)	4349	infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3998	{	4350	{
3999	if (slot < 0)	4351	if (slot < 0)
4000	/* overflow, need to check for all hash slots */	4352	/* overflow, need to check for all hash slots */
4001	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)	4353	for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
…		…
4037	infy_wd (EV_A_ ev->wd, ev->wd, ev);	4389	infy_wd (EV_A_ ev->wd, ev->wd, ev);
4038	ofs += sizeof (struct inotify_event) + ev->len;	4390	ofs += sizeof (struct inotify_event) + ev->len;
4039	}	4391	}
4040	}	4392	}
4041		4393
4042	inline_size void ecb_cold	4394	inline_size ecb_cold
		4395	void
4043	ev_check_2625 (EV_P)	4396	ev_check_2625 (EV_P)
4044	{	4397	{
4045	/* kernels < 2.6.25 are borked	4398	/* kernels < 2.6.25 are borked
4046	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html	4399	* http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4047	*/	4400	*/
…		…
4145	w->attr.st_nlink = 0;	4498	w->attr.st_nlink = 0;
4146	else if (!w->attr.st_nlink)	4499	else if (!w->attr.st_nlink)
4147	w->attr.st_nlink = 1;	4500	w->attr.st_nlink = 1;
4148	}	4501	}
4149		4502
4150	static void noinline	4503	noinline
		4504	static void
4151	stat_timer_cb (EV_P_ ev_timer *w_, int revents)	4505	stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4152	{	4506	{
4153	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));	4507	ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4154		4508
4155	ev_statdata prev = w->attr;	4509	ev_statdata prev = w->attr;
…		…
4365	EV_FREQUENT_CHECK;	4719	EV_FREQUENT_CHECK;
4366	}	4720	}
4367	#endif	4721	#endif
4368		4722
4369	#if EV_EMBED_ENABLE	4723	#if EV_EMBED_ENABLE
4370	void noinline	4724	noinline
		4725	void
4371	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW	4726	ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4372	{	4727	{
4373	ev_run (w->other, EVRUN_NOWAIT);	4728	ev_run (w->other, EVRUN_NOWAIT);
4374	}	4729	}
4375		4730
…		…
4672	}	5027	}
4673		5028
4674	/*****************************************************************************/	5029	/*****************************************************************************/
4675		5030
4676	#if EV_WALK_ENABLE	5031	#if EV_WALK_ENABLE
4677	void ecb_cold	5032	ecb_cold
		5033	void
4678	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW	5034	ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4679	{	5035	{
4680	int i, j;	5036	int i, j;
4681	ev_watcher_list *wl, *wn;	5037	ev_watcher_list *wl, *wn;
4682		5038

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