[ViewVC] Diff of: cvs/libeio/ecb.h

Comparing libeio/ecb.h (file contents):
Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs.
Revision 1.11 by root, Tue Apr 24 18:47:50 2012 UTC

…		…
1	/*	1	/*
2	* libecb - http://software.schmorp.de/pkg/libecb	2	* libecb - http://software.schmorp.de/pkg/libecb
3	*	3	*
4	* Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>	4	* Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
5	* Copyright (©) 2011 Emanuele Giaquinta	5	* Copyright (©) 2011 Emanuele Giaquinta
6	* All rights reserved.	6	* All rights reserved.
7	*	7	*
8	* Redistribution and use in source and binary forms, with or without modifica-	8	* Redistribution and use in source and binary forms, with or without modifica-
9	* tion, are permitted provided that the following conditions are met:	9	* tion, are permitted provided that the following conditions are met:
38	typedef signed int int32_t;	38	typedef signed int int32_t;
39	typedef unsigned int uint32_t;	39	typedef unsigned int uint32_t;
40	#if __GNUC__	40	#if __GNUC__
41	typedef signed long long int64_t;	41	typedef signed long long int64_t;
42	typedef unsigned long long uint64_t;	42	typedef unsigned long long uint64_t;
43	#else	43	#else /* _MSC_VER \|\| __BORLANDC__ */
44	typedef signed __int64 int64_t;	44	typedef signed __int64 int64_t;
45	typedef unsigned __int64 uint64_t;	45	typedef unsigned __int64 uint64_t;
46	#endif	46	#endif
47	#else	47	#else
48	#include <inttypes.h>	48	#include <inttypes.h>
49	#endif	49	#endif
50		50
51	/* many compilers define _GNUC_ to some versions but then only implement	51	/* many compilers define _GNUC_ to some versions but then only implement
52	* what their idiot authors think are the "more important" extensions,	52	* what their idiot authors think are the "more important" extensions,
53	* causing enourmous grief in return for some better fake benchmark numbers.	53	* causing enormous grief in return for some better fake benchmark numbers.
54	* or so.	54	* or so.
55	* we try to detect these and simply assume they are not gcc - if they have	55	* we try to detect these and simply assume they are not gcc - if they have
56	* an issue with that they should have done it right in the first place.	56	* an issue with that they should have done it right in the first place.
57	*/	57	*/
58	#ifndef ECB_GCC_VERSION	58	#ifndef ECB_GCC_VERSION
59	#if !defined(__GNUC_MINOR__) \|\| defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__SUNPRO_CC) \|\| defined(__llvm__) \|\| defined(__clang__)	59	#if !defined __GNUC_MINOR__ \|\| defined __INTEL_COMPILER \|\| defined __SUNPRO_C \|\| defined __SUNPRO_CC \|\| defined __llvm__ \|\| defined __clang__
60	#define ECB_GCC_VERSION(major,minor) 0	60	#define ECB_GCC_VERSION(major,minor) 0
61	#else	61	#else
62	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))	62	#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) \|\| (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
63	#endif	63	#endif
64	#endif	64	#endif
		65
		66	/*****************************************************************************/
		67
		68	/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
		69	/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
		70
		71	#if ECB_NO_THREADS
		72	# define ECB_NO_SMP 1
		73	#endif
		74
		75	#if ECB_NO_THREADS \|\| ECB_NO_SMP
		76	#define ECB_MEMORY_FENCE do { } while (0)
		77	#endif
		78
		79	#ifndef ECB_MEMORY_FENCE
		80	#if ECB_GCC_VERSION(2,5) \|\| defined __INTEL_COMPILER \|\| (__llvm__ && __GNUC__) \|\| __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		81	#if __i386 \|\| __i386__
		82	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		83	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
		84	#define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
		85	#elif __amd64 \|\| __amd64__ \|\| __x86_64 \|\| __x86_64__
		86	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		87	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		88	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
		89	#elif __powerpc__ \|\| __ppc__ \|\| __powerpc64__ \|\| __ppc64__
		90	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		91	#elif defined __ARM_ARCH_6__ \|\| defined __ARM_ARCH_6J__ \
		92	\|\| defined __ARM_ARCH_6K__ \|\| defined __ARM_ARCH_6ZK__
		93	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
		94	#elif defined __ARM_ARCH_7__ \|\| defined __ARM_ARCH_7A__ \
		95	\|\| defined __ARM_ARCH_7M__ \|\| defined __ARM_ARCH_7R__
		96	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
		97	#elif __sparc \|\| __sparc__
		98	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad \| #StoreStore \| #StoreLoad \| " : : : "memory")
		99	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore \| #LoadLoad" : : : "memory")
		100	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore \| #StoreStore")
		101	#elif defined __s390__ \|\| defined __s390x__
		102	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
		103	#elif defined __mips__
		104	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
		105	#elif defined __alpha__
		106	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
		107	#endif
		108	#endif
		109	#endif
		110
		111	#ifndef ECB_MEMORY_FENCE
		112	#if ECB_GCC_VERSION(4,4) \|\| defined __INTEL_COMPILER \|\| defined __clang__
		113	#define ECB_MEMORY_FENCE __sync_synchronize ()
		114	/#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) /
		115	/#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) /
		116	#elif _MSC_VER >= 1400 /* VC++ 2005 */
		117	#pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
		118	#define ECB_MEMORY_FENCE _ReadWriteBarrier ()
		119	#define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
		120	#define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
		121	#elif defined _WIN32
		122	#include <WinNT.h>
		123	#define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
		124	#elif __SUNPRO_C >= 0x5110 \|\| __SUNPRO_CC >= 0x5110
		125	#include <mbarrier.h>
		126	#define ECB_MEMORY_FENCE __machine_rw_barrier ()
		127	#define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
		128	#define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
		129	#elif __xlC__
		130	#define ECB_MEMORY_FENCE __sync ()
		131	#endif
		132	#endif
		133
		134	#ifndef ECB_MEMORY_FENCE
		135	#if !ECB_AVOID_PTHREADS
		136	/*
		137	* if you get undefined symbol references to pthread_mutex_lock,
		138	* or failure to find pthread.h, then you should implement
		139	* the ECB_MEMORY_FENCE operations for your cpu/compiler
		140	* OR provide pthread.h and link against the posix thread library
		141	* of your system.
		142	*/
		143	#include <pthread.h>
		144	#define ECB_NEEDS_PTHREADS 1
		145	#define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
		146
		147	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		148	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		149	#endif
		150	#endif
		151
		152	#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
		153	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		154	#endif
		155
		156	#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
		157	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		158	#endif
		159
		160	/*****************************************************************************/
65		161
66	#define ECB_C99 (__STDC_VERSION__ >= 199901L)	162	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
67		163
68	#if __cplusplus	164	#if __cplusplus
69	#define ecb_inline static inline	165	#define ecb_inline static inline
…		…
152	{	248	{
153	int r = 0;	249	int r = 0;
154		250
155	x &= ~x + 1; /* this isolates the lowest bit */	251	x &= ~x + 1; /* this isolates the lowest bit */
156		252
		253	#if ECB_branchless_on_i386
		254	r += !!(x & 0xaaaaaaaa) << 0;
		255	r += !!(x & 0xcccccccc) << 1;
		256	r += !!(x & 0xf0f0f0f0) << 2;
		257	r += !!(x & 0xff00ff00) << 3;
		258	r += !!(x & 0xffff0000) << 4;
		259	#else
157	if (x & 0xaaaaaaaa) r += 1;	260	if (x & 0xaaaaaaaa) r += 1;
158	if (x & 0xcccccccc) r += 2;	261	if (x & 0xcccccccc) r += 2;
159	if (x & 0xf0f0f0f0) r += 4;	262	if (x & 0xf0f0f0f0) r += 4;
160	if (x & 0xff00ff00) r += 8;	263	if (x & 0xff00ff00) r += 8;
161	if (x & 0xffff0000) r += 16;	264	if (x & 0xffff0000) r += 16;
		265	#endif
162		266
163	return r;	267	return r;
164	}	268	}
165		269
166	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;	270	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
167	ecb_function_ int	271	ecb_function_ int
168	ecb_ctz64 (uint64_t x)	272	ecb_ctz64 (uint64_t x)
169	{	273	{
170	int shift = x & 0xffffffffU ? 0 : 32;	274	int shift = x & 0xffffffffU ? 0 : 32;
171	return ecb_ctz (x >> shift) + shift;	275	return ecb_ctz32 (x >> shift) + shift;
172	}	276	}
173		277
174	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;	278	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
175	ecb_function_ int	279	ecb_function_ int
176	ecb_popcount32 (uint32_t x)	280	ecb_popcount32 (uint32_t x)
…		…
181	x *= 0x01010101;	285	x *= 0x01010101;
182		286
183	return x >> 24;	287	return x >> 24;
184	}	288	}
185		289
186	/* you have the choice beetween something with a table lookup, */
187	/* something using lots of bit arithmetic and a simple loop */
188	/* we went for the loop */
189	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;	290	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
190	ecb_function_ int ecb_ld32 (uint32_t x)	291	ecb_function_ int ecb_ld32 (uint32_t x)
191	{	292	{
192	int r = -1;	293	int r = 0;
193		294
194	do	295	if (x >> 16) { x >>= 16; r += 16; }
195	{	296	if (x >> 8) { x >>= 8; r += 8; }
196	x >>= 1;	297	if (x >> 4) { x >>= 4; r += 4; }
197	++r;	298	if (x >> 2) { x >>= 2; r += 2; }
198	}	299	if (x >> 1) { r += 1; }
199	while (x);
200		300
201	return r;	301	return r;
202	}	302	}
203		303
204	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;	304	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
205	ecb_function_ int ecb_ld64 (uint64_t x)	305	ecb_function_ int ecb_ld64 (uint64_t x)
206	{	306	{
207	int r = -1;	307	int r = 0;
208		308
209	do	309	if (x >> 32) { x >>= 32; r += 32; }
210	{
211	x >>= 1;
212	++r;
213	}
214	while (x);
215		310
		311	return r + ecb_ld32 (x);
		312	}
		313	#endif
		314
		315	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
		316	ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
		317	{
		318	return ( (x * 0x0802U & 0x22110U)
		319	\| (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
		320	}
		321
		322	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
		323	ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
		324	{
		325	x = ((x >> 1) & 0x5555) \| ((x & 0x5555) << 1);
		326	x = ((x >> 2) & 0x3333) \| ((x & 0x3333) << 2);
		327	x = ((x >> 4) & 0x0f0f) \| ((x & 0x0f0f) << 4);
		328	x = ( x >> 8 ) \| ( x << 8);
		329
216	return r;	330	return x;
217	}	331	}
218	#endif	332
		333	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
		334	ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
		335	{
		336	x = ((x >> 1) & 0x55555555) \| ((x & 0x55555555) << 1);
		337	x = ((x >> 2) & 0x33333333) \| ((x & 0x33333333) << 2);
		338	x = ((x >> 4) & 0x0f0f0f0f) \| ((x & 0x0f0f0f0f) << 4);
		339	x = ((x >> 8) & 0x00ff00ff) \| ((x & 0x00ff00ff) << 8);
		340	x = ( x >> 16 ) \| ( x << 16);
		341
		342	return x;
		343	}
219		344
220	/* popcount64 is only available on 64 bit cpus as gcc builtin */	345	/* popcount64 is only available on 64 bit cpus as gcc builtin */
221	/* so for this version we are lazy */	346	/* so for this version we are lazy */
222	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;	347	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
223	ecb_function_ int	348	ecb_function_ int
224	ecb_popcount64 (uint64_t x)	349	ecb_popcount64 (uint64_t x)
225	{	350	{
226	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);	351	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
227	}	352	}
228		353
		354	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		355	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		356	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		357	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		358	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		359	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		360	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		361	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		362
		363	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		364	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		365	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		366	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		367	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		368	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		369	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		370	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		371
229	#if ECB_GCC_VERSION(4,3)	372	#if ECB_GCC_VERSION(4,3)
230	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)	373	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
231	#define ecb_bswap32(x) __builtin_bswap32 (x)	374	#define ecb_bswap32(x) __builtin_bswap32 (x)
232	#define ecb_bswap64(x) __builtin_bswap64 (x)	375	#define ecb_bswap64(x) __builtin_bswap64 (x)
233	#else	376	#else
234	ecb_function_ uint32_t ecb_bswap16 (uint32_t x) ecb_const;	377	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
235	ecb_function_ uint32_t	378	ecb_function_ uint16_t
236	ecb_bswap16 (uint32_t x)	379	ecb_bswap16 (uint16_t x)
237	{	380	{
238	return ((x >> 8) & 0xff)	381	return ecb_rotl16 (x, 8);
239	\| ((x << 8) & 0x00ff0000)
240	\| (x << 24);
241	}	382	}
242		383
243	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;	384	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
244	ecb_function_ uint32_t	385	ecb_function_ uint32_t
245	ecb_bswap32 (uint32_t x)	386	ecb_bswap32 (uint32_t x)
246	{	387	{
247	return (x >> 24)	388	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
248	\| ((x >> 8) & 0x0000ff00)
249	\| ((x << 8) & 0x00ff0000)
250	\| (x << 24);
251	}	389	}
252		390
253	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;	391	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
254	ecb_function_ uint64_t	392	ecb_function_ uint64_t
255	ecb_bswap64 (uint64_t x)	393	ecb_bswap64 (uint64_t x)
256	{	394	{
257	return (((uint64_t)ecb_bswap32 (x)) << 32)	395	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
258	\| ecb_bswap32 (x >> 32);
259	}	396	}
260	#endif	397	#endif
261		398
262	#if ECB_GCC_VERSION(4,5)	399	#if ECB_GCC_VERSION(4,5)
263	#define ecb_unreachable() __builtin_unreachable ()	400	#define ecb_unreachable() __builtin_unreachable ()
264	#else	401	#else
265	/* this seems to work fine, but gcc always emits a warning for it :/ */	402	/* this seems to work fine, but gcc always emits a warning for it :/ */
266	ecb_function_ void ecb_unreachable (void) ecb_noreturn;	403	ecb_inline void ecb_unreachable (void) ecb_noreturn;
267	ecb_function_ void ecb_unreachable (void) { }	404	ecb_inline void ecb_unreachable (void) { }
268	#endif	405	#endif
269		406
270	/* try to tell the compiler that some condition is definitely true */	407	/* try to tell the compiler that some condition is definitely true */
271	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	408	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
272		409
273	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;	410	ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
274	ecb_function_ unsigned char	411	ecb_inline unsigned char
275	ecb_byteorder_helper (void)	412	ecb_byteorder_helper (void)
276	{	413	{
277	const uint32_t u = 0x11223344;	414	const uint32_t u = 0x11223344;
278	return (unsigned char )&u;	415	return (unsigned char )&u;
279	}	416	}
280		417
281	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;	418	ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
282	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }	419	ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
283	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;	420	ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
284	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }	421	ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
285		422
286	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99	423	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
287	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	424	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
288	#else	425	#else
289	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	426	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
		427	#endif
		428
		429	#if __cplusplus
		430	template<typename T>
		431	static inline T ecb_div_rd (T val, T div)
		432	{
		433	return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
		434	}
		435	template<typename T>
		436	static inline T ecb_div_ru (T val, T div)
		437	{
		438	return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
		439	}
		440	#else
		441	#define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
		442	#define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
290	#endif	443	#endif
291		444
292	#if ecb_cplusplus_does_not_suck	445	#if ecb_cplusplus_does_not_suck
293	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */	446	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
294	template<typename T, int N>	447	template<typename T, int N>
…		…
298	}	451	}
299	#else	452	#else
300	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	453	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
301	#endif	454	#endif
302		455
303	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
304	ecb_inline uint32_t
305	ecb_rotr32 (uint32_t x, unsigned int count)
306	{
307	return (x << (32 - count)) \| (x >> count);
308	}
309
310	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
311	ecb_inline uint32_t
312	ecb_rotl32 (uint32_t x, unsigned int count)
313	{
314	return (x >> (32 - count)) \| (x << count);
315	}
316
317	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
318	ecb_inline uint64_t
319	ecb_rotr64 (uint64_t x, unsigned int count)
320	{
321	return (x << (64 - count)) \| (x >> count);
322	}
323
324	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
325	ecb_inline uint64_t
326	ecb_rotl64 (uint64_t x, unsigned int count)
327	{
328	return (x >> (64 - count)) \| (x << count);
329	}
330
331	#endif	456	#endif
332		457

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Comparing libeio/ecb.h (file contents): Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs. Revision 1.11 by root, Tue Apr 24 18:47:50 2012 UTC

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Comparing libeio/ecb.h (file contents):
Revision 1.2 by root, Fri Jun 17 18:55:42 2011 UTC vs.
Revision 1.11 by root, Tue Apr 24 18:47:50 2012 UTC