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

Comparing libev/ev.c (file contents):
Revision 1.445 by root, Sat Jun 2 11:15:29 2012 UTC vs.
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC

…		…
1	/*	1	/*
2	* libev event processing core, watcher management	2	* libev event processing core, watcher management
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
43	# include EV_CONFIG_H	43	# include EV_CONFIG_H
44	# else	44	# else
45	# include "config.h"	45	# include "config.h"
46	# endif	46	# endif
47		47
48	#if HAVE_FLOOR	48	# if HAVE_FLOOR
49	# ifndef EV_USE_FLOOR	49	# ifndef EV_USE_FLOOR
50	# define EV_USE_FLOOR 1	50	# define EV_USE_FLOOR 1
		51	# endif
51	# endif	52	# endif
52	#endif
53		53
54	# if HAVE_CLOCK_SYSCALL	54	# if HAVE_CLOCK_SYSCALL
55	# ifndef EV_USE_CLOCK_SYSCALL	55	# ifndef EV_USE_CLOCK_SYSCALL
56	# define EV_USE_CLOCK_SYSCALL 1	56	# define EV_USE_CLOCK_SYSCALL 1
57	# ifndef EV_USE_REALTIME	57	# ifndef EV_USE_REALTIME
…		…
241	#elif defined SIGARRAYSIZE	241	#elif defined SIGARRAYSIZE
242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */	242	# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243	#elif defined _sys_nsig	243	#elif defined _sys_nsig
244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */	244	# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245	#else	245	#else
246	# error "unable to find value for NSIG, please report"	246	# 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	247	#endif
251		248
252	#ifndef EV_USE_FLOOR	249	#ifndef EV_USE_FLOOR
253	# define EV_USE_FLOOR 0	250	# define EV_USE_FLOOR 0
254	#endif	251	#endif
255		252
256	#ifndef EV_USE_CLOCK_SYSCALL	253	#ifndef EV_USE_CLOCK_SYSCALL
257	# if __linux && __GLIBC__ >= 2	254	# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS	255	# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259	# else	256	# else
260	# define EV_USE_CLOCK_SYSCALL 0	257	# define EV_USE_CLOCK_SYSCALL 0
		258	# endif
		259	#endif
		260
		261	#if !(_POSIX_TIMERS > 0)
		262	# ifndef EV_USE_MONOTONIC
		263	# define EV_USE_MONOTONIC 0
		264	# endif
		265	# ifndef EV_USE_REALTIME
		266	# define EV_USE_REALTIME 0
261	# endif	267	# endif
262	#endif	268	#endif
263		269
264	#ifndef EV_USE_MONOTONIC	270	#ifndef EV_USE_MONOTONIC
265	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0	271	# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
…		…
355	# define EV_USE_4HEAP EV_FEATURE_DATA	361	# define EV_USE_4HEAP EV_FEATURE_DATA
356	#endif	362	#endif
357		363
358	#ifndef EV_HEAP_CACHE_AT	364	#ifndef EV_HEAP_CACHE_AT
359	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA	365	# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
		366	#endif
		367
		368	#ifdef ANDROID
		369	/* supposedly, android doesn't typedef fd_mask */
		370	# undef EV_USE_SELECT
		371	# define EV_USE_SELECT 0
		372	/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
		373	# undef EV_USE_CLOCK_SYSCALL
		374	# define EV_USE_CLOCK_SYSCALL 0
		375	#endif
		376
		377	/* aix's poll.h seems to cause lots of trouble */
		378	#ifdef _AIX
		379	/* AIX has a completely broken poll.h header */
		380	# undef EV_USE_POLL
		381	# define EV_USE_POLL 0
360	#endif	382	#endif
361		383
362	/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */	384	/* 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. */	385	/* which makes programs even slower. might work on other unices, too. */
364	#if EV_USE_CLOCK_SYSCALL	386	#if EV_USE_CLOCK_SYSCALL
…		…
372	# define EV_USE_CLOCK_SYSCALL 0	394	# define EV_USE_CLOCK_SYSCALL 0
373	# endif	395	# endif
374	#endif	396	#endif
375		397
376	/* this block fixes any misconfiguration where we know we run into trouble otherwise */	398	/* 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		399
384	#ifndef CLOCK_MONOTONIC	400	#ifndef CLOCK_MONOTONIC
385	# undef EV_USE_MONOTONIC	401	# undef EV_USE_MONOTONIC
386	# define EV_USE_MONOTONIC 0	402	# define EV_USE_MONOTONIC 0
387	#endif	403	#endif
…		…
475	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */	491	/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476	/* ECB.H BEGIN */	492	/* ECB.H BEGIN */
477	/*	493	/*
478	* libecb - http://software.schmorp.de/pkg/libecb	494	* libecb - http://software.schmorp.de/pkg/libecb
479	*	495	*
480	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>	496	* Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481	* Copyright (©) 2011 Emanuele Giaquinta	497	* Copyright (©) 2011 Emanuele Giaquinta
482	* All rights reserved.	498	* All rights reserved.
483	*	499	*
484	* Redistribution and use in source and binary forms, with or without modifica-	500	* Redistribution and use in source and binary forms, with or without modifica-
485	* tion, are permitted provided that the following conditions are met:	501	* tion, are permitted provided that the following conditions are met:
…		…
499	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;	515	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,	516	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-	517	* 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	518	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503	* OF THE POSSIBILITY OF SUCH DAMAGE.	519	* OF THE POSSIBILITY OF SUCH DAMAGE.
		520	*
		521	* Alternatively, the contents of this file may be used under the terms of
		522	* the GNU General Public License ("GPL") version 2 or any later version,
		523	* in which case the provisions of the GPL are applicable instead of
		524	* the above. If you wish to allow the use of your version of this file
		525	* only under the terms of the GPL and not to allow others to use your
		526	* version of this file under the BSD license, indicate your decision
		527	* by deleting the provisions above and replace them with the notice
		528	* and other provisions required by the GPL. If you do not delete the
		529	* provisions above, a recipient may use your version of this file under
		530	* either the BSD or the GPL.
504	*/	531	*/
505		532
506	#ifndef ECB_H	533	#ifndef ECB_H
507	#define ECB_H	534	#define ECB_H
508		535
509	/* 16 bits major, 16 bits minor */	536	/* 16 bits major, 16 bits minor */
510	#define ECB_VERSION 0x00010001	537	#define ECB_VERSION 0x00010004
511		538
512	#ifdef _WIN32	539	#ifdef _WIN32
513	typedef signed char int8_t;	540	typedef signed char int8_t;
514	typedef unsigned char uint8_t;	541	typedef unsigned char uint8_t;
515	typedef signed short int16_t;	542	typedef signed short int16_t;
…		…
530	#else	557	#else
531	#define ECB_PTRSIZE 4	558	#define ECB_PTRSIZE 4
532	typedef uint32_t uintptr_t;	559	typedef uint32_t uintptr_t;
533	typedef int32_t intptr_t;	560	typedef int32_t intptr_t;
534	#endif	561	#endif
535	typedef intptr_t ptrdiff_t;
536	#else	562	#else
537	#include <inttypes.h>	563	#include <inttypes.h>
538	#if UINTMAX_MAX > 0xffffffffU	564	#if UINTMAX_MAX > 0xffffffffU
539	#define ECB_PTRSIZE 8	565	#define ECB_PTRSIZE 8
540	#else	566	#else
541	#define ECB_PTRSIZE 4	567	#define ECB_PTRSIZE 4
542	#endif	568	#endif
543	#endif	569	#endif
544		570
		571	/* work around x32 idiocy by defining proper macros */
		572	#if __amd64 \|\| __x86_64 \|\| _M_AMD64 \|\| _M_X64
		573	#if _ILP32
		574	#define ECB_AMD64_X32 1
		575	#else
		576	#define ECB_AMD64 1
		577	#endif
		578	#endif
		579
545	/* many compilers define _GNUC_ to some versions but then only implement	580	/* many compilers define _GNUC_ to some versions but then only implement
546	* what their idiot authors think are the "more important" extensions,	581	* what their idiot authors think are the "more important" extensions,
547	* causing enormous grief in return for some better fake benchmark numbers.	582	* causing enormous grief in return for some better fake benchmark numbers.
548	* or so.	583	* or so.
549	* we try to detect these and simply assume they are not gcc - if they have	584	* we try to detect these and simply assume they are not gcc - if they have
550	* an issue with that they should have done it right in the first place.	585	* an issue with that they should have done it right in the first place.
551	*/	586	*/
552	#ifndef ECB_GCC_VERSION
553	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__	587	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__
554	#define ECB_GCC_VERSION(major,minor) 0	588	#define ECB_GCC_VERSION(major,minor) 0
555	#else	589	#else
556	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	590	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
557	#endif	591	#endif
558	#endif
559		592
560	#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */	593	#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) \|\| (__clang_major__ == (major) && __clang_minor__ >= (minor)))
561	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	594
562	#define ECB_C11 (__STDC_VERSION__ >= 201112L)	595	#if __clang__ && defined __has_builtin
		596	#define ECB_CLANG_BUILTIN(x) __has_builtin (x)
		597	#else
		598	#define ECB_CLANG_BUILTIN(x) 0
		599	#endif
		600
		601	#if __clang__ && defined __has_extension
		602	#define ECB_CLANG_EXTENSION(x) __has_extension (x)
		603	#else
		604	#define ECB_CLANG_EXTENSION(x) 0
		605	#endif
		606
563	#define ECB_CPP (__cplusplus+0)	607	#define ECB_CPP (__cplusplus+0)
564	#define ECB_CPP11 (__cplusplus >= 201103L)	608	#define ECB_CPP11 (__cplusplus >= 201103L)
		609
		610	#if ECB_CPP
		611	#define ECB_C 0
		612	#define ECB_STDC_VERSION 0
		613	#else
		614	#define ECB_C 1
		615	#define ECB_STDC_VERSION __STDC_VERSION__
		616	#endif
		617
		618	#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
		619	#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
		620
		621	#if ECB_CPP
		622	#define ECB_EXTERN_C extern "C"
		623	#define ECB_EXTERN_C_BEG ECB_EXTERN_C {
		624	#define ECB_EXTERN_C_END }
		625	#else
		626	#define ECB_EXTERN_C extern
		627	#define ECB_EXTERN_C_BEG
		628	#define ECB_EXTERN_C_END
		629	#endif
565		630
566	/*****************************************************************************/	631	/*****************************************************************************/
567		632
568	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */	633	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
569	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */	634	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
…		…
592	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__	657	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__
593	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")	658	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
594	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \	659	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \
595	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__	660	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__
596	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")	661	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		662	#elif __aarch64__
		663	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
597	#elif __sparc \|\| __sparc__	664	#elif (__sparc \|\| __sparc__) && !__sparcv8
598	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad" : : : "memory")	665	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad" : : : "memory")
599	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")	666	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")
600	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")	667	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")
601	#elif defined __s390__ \|\| defined __s390x__	668	#elif defined __s390__ \|\| defined __s390x__
602	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")	669	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
603	#elif defined __mips__	670	#elif defined __mips__
		671	/* GNU/Linux emulates sync on mips1 architectures, so we force its use */
		672	/* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
604	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")	673	#define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
605	#elif defined __alpha__	674	#elif defined __alpha__
606	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")	675	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
607	#elif defined __hppa__	676	#elif defined __hppa__
608	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")	677	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
609	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")	678	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
610	#elif defined __ia64__	679	#elif defined __ia64__
611	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")	680	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
		681	#elif defined __m68k__
		682	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
		683	#elif defined __m88k__
		684	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
		685	#elif defined __sh__
		686	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
612	#endif	687	#endif
613	#endif	688	#endif
614	#endif	689	#endif
615		690
616	#ifndef ECB_MEMORY_FENCE	691	#ifndef ECB_MEMORY_FENCE
617	#if ECB_GCC_VERSION(4,7)	692	#if ECB_GCC_VERSION(4,7)
618	/* see comment below (stdatomic.h) about the C11 memory model. */	693	/* see comment below (stdatomic.h) about the C11 memory model. */
619	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)	694	#define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
620	#elif defined __clang && __has_feature (cxx_atomic)	695	#define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
		696	#define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
		697
		698	#elif ECB_CLANG_EXTENSION(c_atomic)
621	/* see comment below (stdatomic.h) about the C11 memory model. */	699	/* see comment below (stdatomic.h) about the C11 memory model. */
622	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)	700	#define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
		701	#define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
		702	#define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
		703
623	#elif ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__	704	#elif ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__
624	#define ECB_MEMORY_FENCE __sync_synchronize ()	705	#define ECB_MEMORY_FENCE __sync_synchronize ()
		706	#elif _MSC_VER >= 1500 /* VC++ 2008 */
		707	/* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
		708	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		709	#define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
		710	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
		711	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
625	#elif _MSC_VER >= 1400 /* VC++ 2005 */	712	#elif _MSC_VER >= 1400 /* VC++ 2005 */
626	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)	713	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
627	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()	714	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
628	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */	715	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
629	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()	716	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
…		…
649	/* any fence other than seq_cst, which isn't very efficient for us. */	736	/* any fence other than seq_cst, which isn't very efficient for us. */
650	/* Why that is, we don't know - either the C11 memory model is quite useless */	737	/* Why that is, we don't know - either the C11 memory model is quite useless */
651	/* for most usages, or gcc and clang have a bug */	738	/* for most usages, or gcc and clang have a bug */
652	/* I currently lean towards the latter, and inefficiently implement */	739	/* I currently lean towards the latter, and inefficiently implement */
653	/* all three of ecb's fences as a seq_cst fence */	740	/* all three of ecb's fences as a seq_cst fence */
		741	/* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
		742	/* for all __atomic_thread_fence's except seq_cst */
654	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)	743	#define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
655	#endif	744	#endif
656	#endif	745	#endif
657		746
658	#ifndef ECB_MEMORY_FENCE	747	#ifndef ECB_MEMORY_FENCE
…		…
681	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE	770	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
682	#endif	771	#endif
683		772
684	/*****************************************************************************/	773	/*****************************************************************************/
685		774
686	#if __cplusplus	775	#if ECB_CPP
687	#define ecb_inline static inline	776	#define ecb_inline static inline
688	#elif ECB_GCC_VERSION(2,5)	777	#elif ECB_GCC_VERSION(2,5)
689	#define ecb_inline static __inline__	778	#define ecb_inline static __inline__
690	#elif ECB_C99	779	#elif ECB_C99
691	#define ecb_inline static inline	780	#define ecb_inline static inline
…		…
708	#define ECB_STRINGIFY_(a) # a	797	#define ECB_STRINGIFY_(a) # a
709	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	798	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
710		799
711	#define ecb_function_ ecb_inline	800	#define ecb_function_ ecb_inline
712		801
713	#if ECB_GCC_VERSION(3,1)	802	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_VERSION(2,8)
714	#define ecb_attribute(attrlist) __attribute__(attrlist)	803	#define ecb_attribute(attrlist) __attribute__ (attrlist)
		804	#else
		805	#define ecb_attribute(attrlist)
		806	#endif
		807
		808	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_constant_p)
715	#define ecb_is_constant(expr) __builtin_constant_p (expr)	809	#define ecb_is_constant(expr) __builtin_constant_p (expr)
		810	#else
		811	/* possible C11 impl for integral types
		812	typedef struct ecb_is_constant_struct ecb_is_constant_struct;
		813	#define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct )0 : (void )((expr) - (expr)), ecb_is_constant_struct : 0, default: 1)) /
		814
		815	#define ecb_is_constant(expr) 0
		816	#endif
		817
		818	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_expect)
716	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))	819	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
		820	#else
		821	#define ecb_expect(expr,value) (expr)
		822	#endif
		823
		824	#if ECB_GCC_VERSION(3,1) \|\| ECB_CLANG_BUILTIN(__builtin_prefetch)
717	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	825	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
718	#else	826	#else
719	#define ecb_attribute(attrlist)
720	#define ecb_is_constant(expr) 0
721	#define ecb_expect(expr,value) (expr)
722	#define ecb_prefetch(addr,rw,locality)	827	#define ecb_prefetch(addr,rw,locality)
723	#endif	828	#endif
724		829
725	/* no emulation for ecb_decltype */	830	/* no emulation for ecb_decltype */
726	#if ECB_GCC_VERSION(4,5)	831	#if ECB_CPP11
		832	// older implementations might have problems with decltype(x)::type, work around it
		833	template<class T> struct ecb_decltype_t { typedef T type; };
727	#define ecb_decltype(x) __decltype(x)	834	#define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
728	#elif ECB_GCC_VERSION(3,0)	835	#elif ECB_GCC_VERSION(3,0) \|\| ECB_CLANG_VERSION(2,8)
729	#define ecb_decltype(x) __typeof(x)	836	#define ecb_decltype(x) __typeof__ (x)
		837	#endif
		838
		839	#if _MSC_VER >= 1300
		840	#define ecb_deprecated __declspec (deprecated)
		841	#else
		842	#define ecb_deprecated ecb_attribute ((__deprecated__))
730	#endif	843	#endif
731		844
732	#define ecb_noinline ecb_attribute ((__noinline__))	845	#define ecb_noinline ecb_attribute ((__noinline__))
733	#define ecb_unused ecb_attribute ((__unused__))	846	#define ecb_unused ecb_attribute ((__unused__))
734	#define ecb_const ecb_attribute ((__const__))	847	#define ecb_const ecb_attribute ((__const__))
735	#define ecb_pure ecb_attribute ((__pure__))	848	#define ecb_pure ecb_attribute ((__pure__))
736		849
737	#if ECB_C11	850	/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
		851	#if ECB_C11 \|\| __IBMC_NORETURN
		852	/* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */
738	#define ecb_noreturn _Noreturn	853	#define ecb_noreturn _Noreturn
739	#else	854	#else
740	#define ecb_noreturn ecb_attribute ((__noreturn__))	855	#define ecb_noreturn ecb_attribute ((__noreturn__))
741	#endif	856	#endif
742		857
…		…
758	/* for compatibility to the rest of the world */	873	/* for compatibility to the rest of the world */
759	#define ecb_likely(expr) ecb_expect_true (expr)	874	#define ecb_likely(expr) ecb_expect_true (expr)
760	#define ecb_unlikely(expr) ecb_expect_false (expr)	875	#define ecb_unlikely(expr) ecb_expect_false (expr)
761		876
762	/* count trailing zero bits and count # of one bits */	877	/* count trailing zero bits and count # of one bits */
763	#if ECB_GCC_VERSION(3,4)	878	#if ECB_GCC_VERSION(3,4) \
		879	\|\| (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
		880	&& ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
		881	&& ECB_CLANG_BUILTIN(__builtin_popcount))
764	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */	882	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
765	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)	883	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
766	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)	884	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
767	#define ecb_ctz32(x) __builtin_ctz (x)	885	#define ecb_ctz32(x) __builtin_ctz (x)
768	#define ecb_ctz64(x) __builtin_ctzll (x)	886	#define ecb_ctz64(x) __builtin_ctzll (x)
769	#define ecb_popcount32(x) __builtin_popcount (x)	887	#define ecb_popcount32(x) __builtin_popcount (x)
770	/* no popcountll */	888	/* no popcountll */
771	#else	889	#else
772	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;	890	ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
773	ecb_function_ int	891	ecb_function_ ecb_const int
774	ecb_ctz32 (uint32_t x)	892	ecb_ctz32 (uint32_t x)
775	{	893	{
776	int r = 0;	894	int r = 0;
777		895
778	x &= ~x + 1; /* this isolates the lowest bit */	896	x &= ~x + 1; /* this isolates the lowest bit */
…		…
792	#endif	910	#endif
793		911
794	return r;	912	return r;
795	}	913	}
796		914
797	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	915	ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
798	ecb_function_ int	916	ecb_function_ ecb_const int
799	ecb_ctz64 (uint64_t x)	917	ecb_ctz64 (uint64_t x)
800	{	918	{
801	int shift = x & 0xffffffffU ? 0 : 32;	919	int shift = x & 0xffffffffU ? 0 : 32;
802	return ecb_ctz32 (x >> shift) + shift;	920	return ecb_ctz32 (x >> shift) + shift;
803	}	921	}
804		922
805	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	923	ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
806	ecb_function_ int	924	ecb_function_ ecb_const int
807	ecb_popcount32 (uint32_t x)	925	ecb_popcount32 (uint32_t x)
808	{	926	{
809	x -= (x >> 1) & 0x55555555;	927	x -= (x >> 1) & 0x55555555;
810	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);	928	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
811	x = ((x >> 4) + x) & 0x0f0f0f0f;	929	x = ((x >> 4) + x) & 0x0f0f0f0f;
812	x *= 0x01010101;	930	x *= 0x01010101;
813		931
814	return x >> 24;	932	return x >> 24;
815	}	933	}
816		934
817	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	935	ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
818	ecb_function_ int ecb_ld32 (uint32_t x)	936	ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
819	{	937	{
820	int r = 0;	938	int r = 0;
821		939
822	if (x >> 16) { x >>= 16; r += 16; }	940	if (x >> 16) { x >>= 16; r += 16; }
823	if (x >> 8) { x >>= 8; r += 8; }	941	if (x >> 8) { x >>= 8; r += 8; }
…		…
826	if (x >> 1) { r += 1; }	944	if (x >> 1) { r += 1; }
827		945
828	return r;	946	return r;
829	}	947	}
830		948
831	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	949	ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
832	ecb_function_ int ecb_ld64 (uint64_t x)	950	ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
833	{	951	{
834	int r = 0;	952	int r = 0;
835		953
836	if (x >> 32) { x >>= 32; r += 32; }	954	if (x >> 32) { x >>= 32; r += 32; }
837		955
838	return r + ecb_ld32 (x);	956	return r + ecb_ld32 (x);
839	}	957	}
840	#endif	958	#endif
841		959
842	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;	960	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
843	ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }	961	ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
844	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;	962	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
845	ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }	963	ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
846		964
847	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;	965	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
848	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)	966	ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
849	{	967	{
850	return ( (x * 0x0802U & 0x22110U)	968	return ( (x * 0x0802U & 0x22110U)
851	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;	969	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
852	}	970	}
853		971
854	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;	972	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
855	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)	973	ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
856	{	974	{
857	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);	975	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
858	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);	976	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
859	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);	977	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
860	x = ( x >> 8 ) \| ( x << 8);	978	x = ( x >> 8 ) \| ( x << 8);
861		979
862	return x;	980	return x;
863	}	981	}
864		982
865	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;	983	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
866	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)	984	ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
867	{	985	{
868	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);	986	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
869	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);	987	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
870	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);	988	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
871	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);	989	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
…		…
874	return x;	992	return x;
875	}	993	}
876		994
877	/* popcount64 is only available on 64 bit cpus as gcc builtin */	995	/* popcount64 is only available on 64 bit cpus as gcc builtin */
878	/* so for this version we are lazy */	996	/* so for this version we are lazy */
879	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	997	ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
880	ecb_function_ int	998	ecb_function_ ecb_const int
881	ecb_popcount64 (uint64_t x)	999	ecb_popcount64 (uint64_t x)
882	{	1000	{
883	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	1001	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
884	}	1002	}
885		1003
886	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;	1004	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
887	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;	1005	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
888	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;	1006	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
889	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;	1007	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
890	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;	1008	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
891	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;	1009	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
892	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;	1010	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
893	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;	1011	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
894		1012
895	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }	1013	ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
896	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }	1014	ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
897	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }	1015	ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
898	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }	1016	ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
899	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }	1017	ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
900	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }	1018	ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
901	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }	1019	ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
902	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }	1020	ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
903		1021
904	#if ECB_GCC_VERSION(4,3)	1022	#if ECB_GCC_VERSION(4,3) \|\| (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
905	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	1023	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
906	#define ecb_bswap32(x) __builtin_bswap32 (x)	1024	#define ecb_bswap32(x) __builtin_bswap32 (x)
907	#define ecb_bswap64(x) __builtin_bswap64 (x)	1025	#define ecb_bswap64(x) __builtin_bswap64 (x)
908	#else	1026	#else
909	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;	1027	ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
910	ecb_function_ uint16_t	1028	ecb_function_ ecb_const uint16_t
911	ecb_bswap16 (uint16_t x)	1029	ecb_bswap16 (uint16_t x)
912	{	1030	{
913	return ecb_rotl16 (x, 8);	1031	return ecb_rotl16 (x, 8);
914	}	1032	}
915		1033
916	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	1034	ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
917	ecb_function_ uint32_t	1035	ecb_function_ ecb_const uint32_t
918	ecb_bswap32 (uint32_t x)	1036	ecb_bswap32 (uint32_t x)
919	{	1037	{
920	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);	1038	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
921	}	1039	}
922		1040
923	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	1041	ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
924	ecb_function_ uint64_t	1042	ecb_function_ ecb_const uint64_t
925	ecb_bswap64 (uint64_t x)	1043	ecb_bswap64 (uint64_t x)
926	{	1044	{
927	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);	1045	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
928	}	1046	}
929	#endif	1047	#endif
930		1048
931	#if ECB_GCC_VERSION(4,5)	1049	#if ECB_GCC_VERSION(4,5) \|\| ECB_CLANG_BUILTIN(__builtin_unreachable)
932	#define ecb_unreachable() __builtin_unreachable ()	1050	#define ecb_unreachable() __builtin_unreachable ()
933	#else	1051	#else
934	/* this seems to work fine, but gcc always emits a warning for it :/ */	1052	/* this seems to work fine, but gcc always emits a warning for it :/ */
935	ecb_inline void ecb_unreachable (void) ecb_noreturn;	1053	ecb_inline ecb_noreturn void ecb_unreachable (void);
936	ecb_inline void ecb_unreachable (void) { }	1054	ecb_inline ecb_noreturn void ecb_unreachable (void) { }
937	#endif	1055	#endif
938		1056
939	/* try to tell the compiler that some condition is definitely true */	1057	/* try to tell the compiler that some condition is definitely true */
940	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	1058	#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
941		1059
942	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;	1060	ecb_inline ecb_const unsigned char ecb_byteorder_helper (void);
943	ecb_inline unsigned char	1061	ecb_inline ecb_const unsigned char
944	ecb_byteorder_helper (void)	1062	ecb_byteorder_helper (void)
945	{	1063	{
946	const uint32_t u = 0x11223344;	1064	/* the union code still generates code under pressure in gcc, */
947	return (unsigned char )&u;	1065	/* but less than using pointers, and always seems to */
		1066	/* successfully return a constant. */
		1067	/* the reason why we have this horrible preprocessor mess */
		1068	/* is to avoid it in all cases, at least on common architectures */
		1069	/* or when using a recent enough gcc version (>= 4.6) */
		1070	#if __i386 \|\| __i386__ \|\| _M_X86 \|\| __amd64 \|\| __amd64__ \|\| _M_X64
		1071	return 0x44;
		1072	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
		1073	return 0x44;
		1074	#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
		1075	return 0x11;
		1076	#else
		1077	union
		1078	{
		1079	uint32_t i;
		1080	uint8_t c;
		1081	} u = { 0x11223344 };
		1082	return u.c;
		1083	#endif
948	}	1084	}
949		1085
950	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;	1086	ecb_inline ecb_const ecb_bool ecb_big_endian (void);
951	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	1087	ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
952	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;	1088	ecb_inline ecb_const ecb_bool ecb_little_endian (void);
953	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	1089	ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
954		1090
955	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99	1091	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
956	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	1092	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
957	#else	1093	#else
958	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	1094	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
959	#endif	1095	#endif
960		1096
961	#if __cplusplus	1097	#if ECB_CPP
962	template<typename T>	1098	template<typename T>
963	static inline T ecb_div_rd (T val, T div)	1099	static inline T ecb_div_rd (T val, T div)
964	{	1100	{
965	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;	1101	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
966	}	1102	}
…		…
983	}	1119	}
984	#else	1120	#else
985	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	1121	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
986	#endif	1122	#endif
987		1123
		1124	/*******************************************************************************/
		1125	/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
		1126
		1127	/* basically, everything uses "ieee pure-endian" floating point numbers */
		1128	/* the only noteworthy exception is ancient armle, which uses order 43218765 */
		1129	#if 0 \
		1130	\|\| __i386 \|\| __i386__ \
		1131	\|\| __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__ \
		1132	\|\| __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__ \
		1133	\|\| defined __s390__ \|\| defined __s390x__ \
		1134	\|\| defined __mips__ \
		1135	\|\| defined __alpha__ \
		1136	\|\| defined __hppa__ \
		1137	\|\| defined __ia64__ \
		1138	\|\| defined __m68k__ \
		1139	\|\| defined __m88k__ \
		1140	\|\| defined __sh__ \
		1141	\|\| defined _M_IX86 \|\| defined _M_AMD64 \|\| defined _M_IA64 \
		1142	\|\| (defined __arm__ && (defined __ARM_EABI__ \|\| defined __EABI__ \|\| defined __VFP_FP__ \|\| defined _WIN32_WCE \|\| defined __ANDROID__)) \
		1143	\|\| defined __aarch64__
		1144	#define ECB_STDFP 1
		1145	#include <string.h> /* for memcpy */
		1146	#else
		1147	#define ECB_STDFP 0
		1148	#endif
		1149
		1150	#ifndef ECB_NO_LIBM
		1151
		1152	#include <math.h> /* for frexp, ldexp, INFINITY, NAN */
		1153
		1154	/* only the oldest of old doesn't have this one. solaris. */
		1155	#ifdef INFINITY
		1156	#define ECB_INFINITY INFINITY
		1157	#else
		1158	#define ECB_INFINITY HUGE_VAL
		1159	#endif
		1160
		1161	#ifdef NAN
		1162	#define ECB_NAN NAN
		1163	#else
		1164	#define ECB_NAN ECB_INFINITY
		1165	#endif
		1166
		1167	#if ECB_C99 \|\| _XOPEN_VERSION >= 600 \|\| _POSIX_VERSION >= 200112L
		1168	#define ecb_ldexpf(x,e) ldexpf ((x), (e))
		1169	#else
		1170	#define ecb_ldexpf(x,e) (float) ldexp ((x), (e))
		1171	#endif
		1172
		1173	/* converts an ieee half/binary16 to a float */
		1174	ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
		1175	ecb_function_ ecb_const float
		1176	ecb_binary16_to_float (uint16_t x)
		1177	{
		1178	int e = (x >> 10) & 0x1f;
		1179	int m = x & 0x3ff;
		1180	float r;
		1181
		1182	if (!e ) r = ecb_ldexpf (m , -24);
		1183	else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
		1184	else if (m ) r = ECB_NAN;
		1185	else r = ECB_INFINITY;
		1186
		1187	return x & 0x8000 ? -r : r;
		1188	}
		1189
		1190	/* convert a float to ieee single/binary32 */
		1191	ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
		1192	ecb_function_ ecb_const uint32_t
		1193	ecb_float_to_binary32 (float x)
		1194	{
		1195	uint32_t r;
		1196
		1197	#if ECB_STDFP
		1198	memcpy (&r, &x, 4);
		1199	#else
		1200	/* slow emulation, works for anything but -0 */
		1201	uint32_t m;
		1202	int e;
		1203
		1204	if (x == 0e0f ) return 0x00000000U;
		1205	if (x > +3.40282346638528860e+38f) return 0x7f800000U;
		1206	if (x < -3.40282346638528860e+38f) return 0xff800000U;
		1207	if (x != x ) return 0x7fbfffffU;
		1208
		1209	m = frexpf (x, &e) * 0x1000000U;
		1210
		1211	r = m & 0x80000000U;
		1212
		1213	if (r)
		1214	m = -m;
		1215
		1216	if (e <= -126)
		1217	{
		1218	m &= 0xffffffU;
		1219	m >>= (-125 - e);
		1220	e = -126;
		1221	}
		1222
		1223	r \|= (e + 126) << 23;
		1224	r \|= m & 0x7fffffU;
		1225	#endif
		1226
		1227	return r;
		1228	}
		1229
		1230	/* converts an ieee single/binary32 to a float */
		1231	ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
		1232	ecb_function_ ecb_const float
		1233	ecb_binary32_to_float (uint32_t x)
		1234	{
		1235	float r;
		1236
		1237	#if ECB_STDFP
		1238	memcpy (&r, &x, 4);
		1239	#else
		1240	/* emulation, only works for normals and subnormals and +0 */
		1241	int neg = x >> 31;
		1242	int e = (x >> 23) & 0xffU;
		1243
		1244	x &= 0x7fffffU;
		1245
		1246	if (e)
		1247	x \|= 0x800000U;
		1248	else
		1249	e = 1;
		1250
		1251	/* we distrust ldexpf a bit and do the 2*-24 scaling by an extra multiply /
		1252	r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
		1253
		1254	r = neg ? -r : r;
		1255	#endif
		1256
		1257	return r;
		1258	}
		1259
		1260	/* convert a double to ieee double/binary64 */
		1261	ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
		1262	ecb_function_ ecb_const uint64_t
		1263	ecb_double_to_binary64 (double x)
		1264	{
		1265	uint64_t r;
		1266
		1267	#if ECB_STDFP
		1268	memcpy (&r, &x, 8);
		1269	#else
		1270	/* slow emulation, works for anything but -0 */
		1271	uint64_t m;
		1272	int e;
		1273
		1274	if (x == 0e0 ) return 0x0000000000000000U;
		1275	if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
		1276	if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
		1277	if (x != x ) return 0X7ff7ffffffffffffU;
		1278
		1279	m = frexp (x, &e) * 0x20000000000000U;
		1280
		1281	r = m & 0x8000000000000000;;
		1282
		1283	if (r)
		1284	m = -m;
		1285
		1286	if (e <= -1022)
		1287	{
		1288	m &= 0x1fffffffffffffU;
		1289	m >>= (-1021 - e);
		1290	e = -1022;
		1291	}
		1292
		1293	r \|= ((uint64_t)(e + 1022)) << 52;
		1294	r \|= m & 0xfffffffffffffU;
		1295	#endif
		1296
		1297	return r;
		1298	}
		1299
		1300	/* converts an ieee double/binary64 to a double */
		1301	ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
		1302	ecb_function_ ecb_const double
		1303	ecb_binary64_to_double (uint64_t x)
		1304	{
		1305	double r;
		1306
		1307	#if ECB_STDFP
		1308	memcpy (&r, &x, 8);
		1309	#else
		1310	/* emulation, only works for normals and subnormals and +0 */
		1311	int neg = x >> 63;
		1312	int e = (x >> 52) & 0x7ffU;
		1313
		1314	x &= 0xfffffffffffffU;
		1315
		1316	if (e)
		1317	x \|= 0x10000000000000U;
		1318	else
		1319	e = 1;
		1320
		1321	/* we distrust ldexp a bit and do the 2*-53 scaling by an extra multiply /
		1322	r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
		1323
		1324	r = neg ? -r : r;
		1325	#endif
		1326
		1327	return r;
		1328	}
		1329
		1330	#endif
		1331
988	#endif	1332	#endif
989		1333
990	/* ECB.H END */	1334	/* ECB.H END */
991		1335
992	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS	1336	#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
…		…
1191	}	1535	}
1192		1536
1193	static void *	1537	static void *
1194	ev_realloc_emul (void *ptr, long size) EV_THROW	1538	ev_realloc_emul (void *ptr, long size) EV_THROW
1195	{	1539	{
1196	#if __GLIBC__
1197	return realloc (ptr, size);
1198	#else
1199	/* some systems, notably openbsd and darwin, fail to properly	1540	/* some systems, notably openbsd and darwin, fail to properly
1200	* implement realloc (x, 0) (as required by both ansi c-89 and	1541	* implement realloc (x, 0) (as required by both ansi c-89 and
1201	* the single unix specification, so work around them here.	1542	* the single unix specification, so work around them here.
		1543	* recently, also (at least) fedora and debian started breaking it,
		1544	* despite documenting it otherwise.
1202	*/	1545	*/
1203		1546
1204	if (size)	1547	if (size)
1205	return realloc (ptr, size);	1548	return realloc (ptr, size);
1206		1549
1207	free (ptr);	1550	free (ptr);
1208	return 0;	1551	return 0;
1209	#endif
1210	}	1552	}
1211		1553
1212	static void (alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;	1554	static void (alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1213		1555
1214	void ecb_cold	1556	void ecb_cold
…		…
1869	static void noinline ecb_cold	2211	static void noinline ecb_cold
1870	evpipe_init (EV_P)	2212	evpipe_init (EV_P)
1871	{	2213	{
1872	if (!ev_is_active (&pipe_w))	2214	if (!ev_is_active (&pipe_w))
1873	{	2215	{
		2216	int fds [2];
		2217
1874	# if EV_USE_EVENTFD	2218	# if EV_USE_EVENTFD
		2219	fds [0] = -1;
1875	evfd = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);	2220	fds [1] = eventfd (0, EFD_NONBLOCK \| EFD_CLOEXEC);
1876	if (evfd < 0 && errno == EINVAL)	2221	if (fds [1] < 0 && errno == EINVAL)
1877	evfd = eventfd (0, 0);	2222	fds [1] = eventfd (0, 0);
1878		2223
1879	if (evfd >= 0)	2224	if (fds [1] < 0)
1880	{
1881	evpipe [0] = -1;
1882	fd_intern (evfd); /* doing it twice doesn't hurt */
1883	ev_io_set (&pipe_w, evfd, EV_READ);
1884	}
1885	else
1886	# endif	2225	# endif
1887	{	2226	{
1888	while (pipe (evpipe))	2227	while (pipe (fds))
1889	ev_syserr ("(libev) error creating signal/async pipe");	2228	ev_syserr ("(libev) error creating signal/async pipe");
1890		2229
1891	fd_intern (evpipe [0]);	2230	fd_intern (fds [0]);
1892	fd_intern (evpipe [1]);
1893	ev_io_set (&pipe_w, evpipe [0], EV_READ);
1894	}	2231	}
1895		2232
		2233	evpipe [0] = fds [0];
		2234
		2235	if (evpipe [1] < 0)
		2236	evpipe [1] = fds [1]; /* first call, set write fd */
		2237	else
		2238	{
		2239	/* on subsequent calls, do not change evpipe [1] */
		2240	/* so that evpipe_write can always rely on its value. */
		2241	/* this branch does not do anything sensible on windows, */
		2242	/* so must not be executed on windows */
		2243
		2244	dup2 (fds [1], evpipe [1]);
		2245	close (fds [1]);
		2246	}
		2247
		2248	fd_intern (evpipe [1]);
		2249
		2250	ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1896	ev_io_start (EV_A_ &pipe_w);	2251	ev_io_start (EV_A_ &pipe_w);
1897	ev_unref (EV_A); /* watcher should not keep loop alive */	2252	ev_unref (EV_A); /* watcher should not keep loop alive */
1898	}	2253	}
1899	}	2254	}
1900		2255
…		…
1921	ECB_MEMORY_FENCE_RELEASE;	2276	ECB_MEMORY_FENCE_RELEASE;
1922		2277
1923	old_errno = errno; /* save errno because write will clobber it */	2278	old_errno = errno; /* save errno because write will clobber it */
1924		2279
1925	#if EV_USE_EVENTFD	2280	#if EV_USE_EVENTFD
1926	if (evfd >= 0)	2281	if (evpipe [0] < 0)
1927	{	2282	{
1928	uint64_t counter = 1;	2283	uint64_t counter = 1;
1929	write (evfd, &counter, sizeof (uint64_t));	2284	write (evpipe [1], &counter, sizeof (uint64_t));
1930	}	2285	}
1931	else	2286	else
1932	#endif	2287	#endif
1933	{	2288	{
1934	#ifdef _WIN32	2289	#ifdef _WIN32
…		…
1954	int i;	2309	int i;
1955		2310
1956	if (revents & EV_READ)	2311	if (revents & EV_READ)
1957	{	2312	{
1958	#if EV_USE_EVENTFD	2313	#if EV_USE_EVENTFD
1959	if (evfd >= 0)	2314	if (evpipe [0] < 0)
1960	{	2315	{
1961	uint64_t counter;	2316	uint64_t counter;
1962	read (evfd, &counter, sizeof (uint64_t));	2317	read (evpipe [1], &counter, sizeof (uint64_t));
1963	}	2318	}
1964	else	2319	else
1965	#endif	2320	#endif
1966	{	2321	{
1967	char dummy[4];	2322	char dummy[4];
…		…
2017		2372
2018	void	2373	void
2019	ev_feed_signal (int signum) EV_THROW	2374	ev_feed_signal (int signum) EV_THROW
2020	{	2375	{
2021	#if EV_MULTIPLICITY	2376	#if EV_MULTIPLICITY
		2377	EV_P;
		2378	ECB_MEMORY_FENCE_ACQUIRE;
2022	EV_P = signals [signum - 1].loop;	2379	EV_A = signals [signum - 1].loop;
2023		2380
2024	if (!EV_A)	2381	if (!EV_A)
2025	return;	2382	return;
2026	#endif	2383	#endif
2027		2384
2028	if (!ev_active (&pipe_w))
2029	return;
2030
2031	signals [signum - 1].pending = 1;	2385	signals [signum - 1].pending = 1;
2032	evpipe_write (EV_A_ &sig_pending);	2386	evpipe_write (EV_A_ &sig_pending);
2033	}	2387	}
2034		2388
2035	static void	2389	static void
…		…
2045	void noinline	2399	void noinline
2046	ev_feed_signal_event (EV_P_ int signum) EV_THROW	2400	ev_feed_signal_event (EV_P_ int signum) EV_THROW
2047	{	2401	{
2048	WL w;	2402	WL w;
2049		2403
2050	if (expect_false (signum <= 0 \|\| signum > EV_NSIG))	2404	if (expect_false (signum <= 0 \|\| signum >= EV_NSIG))
2051	return;	2405	return;
2052		2406
2053	--signum;	2407	--signum;
2054		2408
2055	#if EV_MULTIPLICITY	2409	#if EV_MULTIPLICITY
…		…
2283	{	2637	{
2284	return userdata;	2638	return userdata;
2285	}	2639	}
2286		2640
2287	void	2641	void
2288	ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW	2642	ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2289	{	2643	{
2290	invoke_cb = invoke_pending_cb;	2644	invoke_cb = invoke_pending_cb;
2291	}	2645	}
2292		2646
2293	void	2647	void
…		…
2353	#if EV_ASYNC_ENABLE	2707	#if EV_ASYNC_ENABLE
2354	async_pending = 0;	2708	async_pending = 0;
2355	#endif	2709	#endif
2356	pipe_write_skipped = 0;	2710	pipe_write_skipped = 0;
2357	pipe_write_wanted = 0;	2711	pipe_write_wanted = 0;
		2712	evpipe [0] = -1;
		2713	evpipe [1] = -1;
2358	#if EV_USE_INOTIFY	2714	#if EV_USE_INOTIFY
2359	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;	2715	fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2360	#endif	2716	#endif
2361	#if EV_USE_SIGNALFD	2717	#if EV_USE_SIGNALFD
2362	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;	2718	sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
…		…
2425	if (ev_is_active (&pipe_w))	2781	if (ev_is_active (&pipe_w))
2426	{	2782	{
2427	/ev_ref (EV_A);/	2783	/ev_ref (EV_A);/
2428	/ev_io_stop (EV_A_ &pipe_w);/	2784	/ev_io_stop (EV_A_ &pipe_w);/
2429		2785
2430	#if EV_USE_EVENTFD
2431	if (evfd >= 0)
2432	close (evfd);
2433	#endif
2434
2435	if (evpipe [0] >= 0)
2436	{
2437	EV_WIN32_CLOSE_FD (evpipe [0]);	2786	if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2438	EV_WIN32_CLOSE_FD (evpipe [1]);	2787	if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2439	}
2440	}	2788	}
2441		2789
2442	#if EV_USE_SIGNALFD	2790	#if EV_USE_SIGNALFD
2443	if (ev_is_active (&sigfd_w))	2791	if (ev_is_active (&sigfd_w))
2444	close (sigfd);	2792	close (sigfd);
…		…
2530	#endif	2878	#endif
2531	#if EV_USE_INOTIFY	2879	#if EV_USE_INOTIFY
2532	infy_fork (EV_A);	2880	infy_fork (EV_A);
2533	#endif	2881	#endif
2534		2882
		2883	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
2535	if (ev_is_active (&pipe_w))	2884	if (ev_is_active (&pipe_w))
2536	{	2885	{
2537	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */	2886	/* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2538		2887
2539	ev_ref (EV_A);	2888	ev_ref (EV_A);
2540	ev_io_stop (EV_A_ &pipe_w);	2889	ev_io_stop (EV_A_ &pipe_w);
2541		2890
2542	#if EV_USE_EVENTFD
2543	if (evfd >= 0)
2544	close (evfd);
2545	#endif
2546
2547	if (evpipe [0] >= 0)	2891	if (evpipe [0] >= 0)
2548	{
2549	EV_WIN32_CLOSE_FD (evpipe [0]);	2892	EV_WIN32_CLOSE_FD (evpipe [0]);
2550	EV_WIN32_CLOSE_FD (evpipe [1]);
2551	}
2552		2893
2553	#if EV_SIGNAL_ENABLE \|\| EV_ASYNC_ENABLE
2554	evpipe_init (EV_A);	2894	evpipe_init (EV_A);
2555	/* iterate over everything, in case we missed something before */	2895	/* iterate over everything, in case we missed something before */
2556	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);	2896	ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2557	#endif
2558	}	2897	}
		2898	#endif
2559		2899
2560	postfork = 0;	2900	postfork = 0;
2561	}	2901	}
2562		2902
2563	#if EV_MULTIPLICITY	2903	#if EV_MULTIPLICITY
…		…
3532	#if EV_MULTIPLICITY	3872	#if EV_MULTIPLICITY
3533	assert (("libev: a signal must not be attached to two different loops",	3873	assert (("libev: a signal must not be attached to two different loops",
3534	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));	3874	!signals [w->signum - 1].loop \|\| signals [w->signum - 1].loop == loop));
3535		3875
3536	signals [w->signum - 1].loop = EV_A;	3876	signals [w->signum - 1].loop = EV_A;
		3877	ECB_MEMORY_FENCE_RELEASE;
3537	#endif	3878	#endif
3538		3879
3539	EV_FREQUENT_CHECK;	3880	EV_FREQUENT_CHECK;
3540		3881
3541	#if EV_USE_SIGNALFD	3882	#if EV_USE_SIGNALFD
…		…
3696	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)	4037	# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3697		4038
3698	static void noinline	4039	static void noinline
3699	infy_add (EV_P_ ev_stat *w)	4040	infy_add (EV_P_ ev_stat *w)
3700	{	4041	{
3701	w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY \| IN_DONT_FOLLOW \| IN_MASK_ADD);	4042	w->wd = inotify_add_watch (fs_fd, w->path,
		4043	IN_ATTRIB \| IN_DELETE_SELF \| IN_MOVE_SELF \| IN_MODIFY
		4044	\| IN_CREATE \| IN_DELETE \| IN_MOVED_FROM \| IN_MOVED_TO
		4045	\| IN_DONT_FOLLOW \| IN_MASK_ADD);
3702		4046
3703	if (w->wd >= 0)	4047	if (w->wd >= 0)
3704	{	4048	{
3705	struct statfs sfs;	4049	struct statfs sfs;
3706		4050
…		…
3710		4054
3711	if (!fs_2625)	4055	if (!fs_2625)
3712	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;	4056	w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3713	else if (!statfs (w->path, &sfs)	4057	else if (!statfs (w->path, &sfs)
3714	&& (sfs.f_type == 0x1373 /* devfs */	4058	&& (sfs.f_type == 0x1373 /* devfs */
		4059	\|\| sfs.f_type == 0x4006 /* fat */
		4060	\|\| sfs.f_type == 0x4d44 /* msdos */
3715	\|\| sfs.f_type == 0xEF53 /* ext2/3 */	4061	\|\| sfs.f_type == 0xEF53 /* ext2/3 */
		4062	\|\| sfs.f_type == 0x72b6 /* jffs2 */
		4063	\|\| sfs.f_type == 0x858458f6 /* ramfs */
		4064	\|\| sfs.f_type == 0x5346544e /* ntfs */
3716	\|\| sfs.f_type == 0x3153464a /* jfs */	4065	\|\| sfs.f_type == 0x3153464a /* jfs */
		4066	\|\| sfs.f_type == 0x9123683e /* btrfs */
3717	\|\| sfs.f_type == 0x52654973 /* reiser3 */	4067	\|\| sfs.f_type == 0x52654973 /* reiser3 */
3718	\|\| sfs.f_type == 0x01021994 /* tempfs */	4068	\|\| sfs.f_type == 0x01021994 /* tmpfs */
3719	\|\| sfs.f_type == 0x58465342 /* xfs */))	4069	\|\| sfs.f_type == 0x58465342 /* xfs */))
3720	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */	4070	w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3721	else	4071	else
3722	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */	4072	w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3723	}	4073	}

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Comparing libev/ev.c (file contents): Revision 1.445 by root, Sat Jun 2 11:15:29 2012 UTC vs. Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.445 by root, Sat Jun 2 11:15:29 2012 UTC vs.
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC