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

Comparing libeio/ecb.h (file contents):
Revision 1.1 by root, Fri Jun 10 12:35:18 2011 UTC vs.
Revision 1.6 by root, Tue Jul 26 11:07:08 2011 UTC

…		…
28	*/	28	*/
29		29
30	#ifndef ECB_H	30	#ifndef ECB_H
31	#define ECB_H	31	#define ECB_H
32		32
		33	#ifdef _WIN32
		34	typedef signed char int8_t;
		35	typedef unsigned char uint8_t;
		36	typedef signed short int16_t;
		37	typedef unsigned short uint16_t;
		38	typedef signed int int32_t;
		39	typedef unsigned int uint32_t;
		40	#if __GNUC__
		41	typedef signed long long int64_t;
		42	typedef unsigned long long uint64_t;
		43	#else /* _MSC_VER \|\| __BORLANDC__ */
		44	typedef signed __int64 int64_t;
		45	typedef unsigned __int64 uint64_t;
		46	#endif
		47	#else
33	#include <inttypes.h>	48	#include <inttypes.h>
		49	#endif
34		50
35	/* many compilers define _GNUC_ to some versions but then only implement	51	/* many compilers define _GNUC_ to some versions but then only implement
36	* what their idiot authors think are the "more important" extensions,	52	* what their idiot authors think are the "more important" extensions,
37	* causing enourmous grief in return for some better fake benchmark numbers.	53	* causing enourmous grief in return for some better fake benchmark numbers.
38	* or so.	54	* or so.
39	* 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
40	* 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.
41	*/	57	*/
42	#ifndef ECB_GCC_VERSION	58	#ifndef ECB_GCC_VERSION
43	# if defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__llvm__)	59	#if !defined(__GNUC_MINOR__) \|\| defined(__INTEL_COMPILER) \|\| defined(__SUNPRO_C) \|\| defined(__SUNPRO_CC) \|\| defined(__llvm__) \|\| defined(__clang__)
44	# define ECB_GCC_VERSION(major,minor) 0	60	#define ECB_GCC_VERSION(major,minor) 0
45	# else	61	#else
46	# 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
47	# endif	64	#endif
		65
		66	/*****************************************************************************/
		67
		68	#ifndef ECB_MEMORY_FENCE
		69	#if ECB_GCC_VERSION(2,5)
		70	#if __x86
		71	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
		72	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		73	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */
		74	#elif __amd64
		75	#define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
		76	#define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
		77	#define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence")
		78	#endif
48	#endif	79	#endif
		80	#endif
49		81
		82	#ifndef ECB_MEMORY_FENCE
		83	#if ECB_GCC_VERSION(4,4)
		84	#define ECB_MEMORY_FENCE __sync_synchronize ()
		85	#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); })
		86	#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); })
		87	#elif _MSC_VER >= 1400 && 0 /* TODO: only true when using volatiles */
		88	#define ECB_MEMORY_FENCE do { } while (0)
		89	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		90	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		91	#elif defined(_WIN32)
		92	#include <WinNT.h>
		93	#define ECB_MEMORY_FENCE MemoryBarrier ()
		94	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		95	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		96	#endif
		97	#endif
		98
		99	#ifndef ECB_MEMORY_FENCE
		100	#include <pthread.h>
		101
		102	static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
		103	#define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
		104	#define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
		105	#define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
		106	#endif
		107
		108	/*****************************************************************************/
		109
		110	#define ECB_C99 (__STDC_VERSION__ >= 199901L)
		111
50	#ifndef __cplusplus	112	#if __cplusplus
51	# if __STDC_VERSION__ >= 199901L	113	#define ecb_inline static inline
52	# define ECB_INLINE static inline	114	#elif ECB_GCC_VERSION(2,5)
53	typedef _Bool ecb_bool;	115	#define ecb_inline static __inline__
		116	#elif ECB_C99
		117	#define ecb_inline static inline
54	# else	118	#else
55	# define ECB_INLINE static inline /* yeah! */	119	#define ecb_inline static
		120	#endif
		121
		122	#if ECB_GCC_VERSION(3,3)
		123	#define ecb_restrict __restrict__
		124	#elif ECB_C99
		125	#define ecb_restrict restrict
		126	#else
		127	#define ecb_restrict
		128	#endif
		129
56	typedef int ecb_bool;	130	typedef int ecb_bool;
57	# endif
58	#else
59	# define ECB_INLINE static inline
60	typedef bool ecb_bool;
61	#endif
62		131
63	#define ECB_CONCAT_(a, b) a ## b	132	#define ECB_CONCAT_(a, b) a ## b
64	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)	133	#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
65	#define ECB_STRINGIFY_(a) # a	134	#define ECB_STRINGIFY_(a) # a
66	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)	135	#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
67		136
68	#define ECB_HEADER_INLINE ECB_INLINE	137	#define ecb_function_ ecb_inline
69		138
70	#if ECB_GCC_VERSION(3,1)	139	#if ECB_GCC_VERSION(3,1)
71	# define ecb_attribute(attrlist) __attribute__(attrlist)	140	#define ecb_attribute(attrlist) __attribute__(attrlist)
72	# define ecb_is_constant(expr) __builtin_constant_p (expr)	141	#define ecb_is_constant(expr) __builtin_constant_p (expr)
73	# define ecb_expect(expr,value) __builtin_expect ((expr),(value))	142	#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
74	# define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)	143	#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
75	#else	144	#else
76	# define ecb_attribute(attrlist)	145	#define ecb_attribute(attrlist)
77	# define ecb_is_constant(expr) 0	146	#define ecb_is_constant(expr) 0
78	# define ecb_expect(expr,value) (expr)	147	#define ecb_expect(expr,value) (expr)
79	# define ecb_prefetch(addr,rw,locality)	148	#define ecb_prefetch(addr,rw,locality)
80	#endif	149	#endif
81		150
82	/* no emulation for ecb_decltype */	151	/* no emulation for ecb_decltype */
83	#if ECB_GCC_VERSION(4,5)	152	#if ECB_GCC_VERSION(4,5)
84	# define ecb_decltype(x) __decltype(x)	153	#define ecb_decltype(x) __decltype(x)
85	#elif ECB_GCC_VERSION(3,0)	154	#elif ECB_GCC_VERSION(3,0)
86	# define ecb_decltype(x) typeof(x)	155	#define ecb_decltype(x) __typeof(x)
87	#endif	156	#endif
88		157
89	#define ecb_artificial ecb_attribute ((__artificial__)) /* 4.3 */
90	#define ecb_noinline ecb_attribute ((__noinline__))	158	#define ecb_noinline ecb_attribute ((__noinline__))
91	#define ecb_noreturn ecb_attribute ((__noreturn__))	159	#define ecb_noreturn ecb_attribute ((__noreturn__))
92	#define ecb_unused ecb_attribute ((__unused__))	160	#define ecb_unused ecb_attribute ((__unused__))
93	#define ecb_const ecb_attribute ((__const__))	161	#define ecb_const ecb_attribute ((__const__))
94	#define ecb_pure ecb_attribute ((__pure__))	162	#define ecb_pure ecb_attribute ((__pure__))
		163
		164	#if ECB_GCC_VERSION(4,3)
		165	#define ecb_artificial ecb_attribute ((__artificial__))
95	#define ecb_hot ecb_attribute ((__hot__)) /* 4.3 */	166	#define ecb_hot ecb_attribute ((__hot__))
96	#define ecb_cold ecb_attribute ((__cold__)) /* 4.3 */	167	#define ecb_cold ecb_attribute ((__cold__))
		168	#else
		169	#define ecb_artificial
		170	#define ecb_hot
		171	#define ecb_cold
		172	#endif
97		173
98	/* put into if's if you are very sure that the expression */	174	/* put around conditional expressions if you are very sure that the */
99	/* is mostly true or mostly false. note that these return */	175	/* expression is mostly true or mostly false. note that these return */
100	/* booleans, not the expression. */	176	/* booleans, not the expression. */
101	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)	177	#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
102	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)	178	#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
		179	/* for compatibility to the rest of the world */
103	#define ecb_likely(expr) ecb_expect_true (expr)	180	#define ecb_likely(expr) ecb_expect_true (expr)
104	#define ecb_unlikely(expr) ecb_expect_false (expr)	181	#define ecb_unlikely(expr) ecb_expect_false (expr)
105		182
		183	/* count trailing zero bits and count # of one bits */
		184	#if ECB_GCC_VERSION(3,4)
		185	/* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
		186	#define ecb_ld32(x) (__builtin_clz (x) ^ 31)
		187	#define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
		188	#define ecb_ctz32(x) __builtin_ctz (x)
		189	#define ecb_ctz64(x) __builtin_ctzll (x)
		190	#define ecb_popcount32(x) __builtin_popcount (x)
		191	/* no popcountll */
		192	#else
		193	ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
		194	ecb_function_ int
		195	ecb_ctz32 (uint32_t x)
		196	{
		197	int r = 0;
		198
		199	x &= ~x + 1; /* this isolates the lowest bit */
		200
		201	#if ECB_branchless_on_i386
		202	r += !!(x & 0xaaaaaaaa) << 0;
		203	r += !!(x & 0xcccccccc) << 1;
		204	r += !!(x & 0xf0f0f0f0) << 2;
		205	r += !!(x & 0xff00ff00) << 3;
		206	r += !!(x & 0xffff0000) << 4;
		207	#else
		208	if (x & 0xaaaaaaaa) r += 1;
		209	if (x & 0xcccccccc) r += 2;
		210	if (x & 0xf0f0f0f0) r += 4;
		211	if (x & 0xff00ff00) r += 8;
		212	if (x & 0xffff0000) r += 16;
		213	#endif
		214
		215	return r;
		216	}
		217
		218	ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
		219	ecb_function_ int
		220	ecb_ctz64 (uint64_t x)
		221	{
		222	int shift = x & 0xffffffffU ? 0 : 32;
		223	return ecb_ctz32 (x >> shift) + shift;
		224	}
		225
		226	ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
		227	ecb_function_ int
		228	ecb_popcount32 (uint32_t x)
		229	{
		230	x -= (x >> 1) & 0x55555555;
		231	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
		232	x = ((x >> 4) + x) & 0x0f0f0f0f;
		233	x *= 0x01010101;
		234
		235	return x >> 24;
		236	}
		237
		238	/* you have the choice beetween something with a table lookup, */
		239	/* something using lots of bit arithmetic and a simple loop */
		240	/* we went for the loop */
		241	ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
		242	ecb_function_ int ecb_ld32 (uint32_t x)
		243	{
		244	int r = 0;
		245
		246	if (x >> 16) { x >>= 16; r += 16; }
		247	if (x >> 8) { x >>= 8; r += 8; }
		248	if (x >> 4) { x >>= 4; r += 4; }
		249	if (x >> 2) { x >>= 2; r += 2; }
		250	if (x >> 1) { r += 1; }
		251
		252	return r;
		253	}
		254
		255	ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
		256	ecb_function_ int ecb_ld64 (uint64_t x)
		257	{
		258	int r = 0;
		259
		260	if (x >> 32) { x >>= 32; r += 32; }
		261
		262	return r + ecb_ld32 (x);
		263	}
		264	#endif
		265
		266	/* popcount64 is only available on 64 bit cpus as gcc builtin */
		267	/* so for this version we are lazy */
		268	ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
		269	ecb_function_ int
		270	ecb_popcount64 (uint64_t x)
		271	{
		272	return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
		273	}
		274
		275	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
		276	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
		277	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
		278	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
		279	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
		280	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
		281	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
		282	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
		283
		284	ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) \| (x << count); }
		285	ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) \| (x >> count); }
		286	ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) \| (x << count); }
		287	ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) \| (x >> count); }
		288	ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) \| (x << count); }
		289	ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) \| (x >> count); }
		290	ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) \| (x << count); }
		291	ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) \| (x >> count); }
		292
		293	#if ECB_GCC_VERSION(4,3)
		294	#define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
		295	#define ecb_bswap32(x) __builtin_bswap32 (x)
		296	#define ecb_bswap64(x) __builtin_bswap64 (x)
		297	#else
		298	ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
		299	ecb_function_ uint16_t
		300	ecb_bswap16 (uint16_t x)
		301	{
		302	return ecb_rotl16 (x, 8);
		303	}
		304
		305	ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
		306	ecb_function_ uint32_t
		307	ecb_bswap32 (uint32_t x)
		308	{
		309	return (((uint32_t)ecb_bswap16 (x)) << 16) \| ecb_bswap16 (x >> 16);
		310	}
		311
		312	ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
		313	ecb_function_ uint64_t
		314	ecb_bswap64 (uint64_t x)
		315	{
		316	return (((uint64_t)ecb_bswap32 (x)) << 32) \| ecb_bswap32 (x >> 32);
		317	}
		318	#endif
		319
		320	#if ECB_GCC_VERSION(4,5)
		321	#define ecb_unreachable() __builtin_unreachable ()
		322	#else
		323	/* this seems to work fine, but gcc always emits a warning for it :/ */
		324	ecb_function_ void ecb_unreachable (void) ecb_noreturn;
		325	ecb_function_ void ecb_unreachable (void) { }
		326	#endif
		327
106	/* try to tell the compiler that some condition is definitely true */	328	/* try to tell the compiler that some condition is definitely true */
107	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)	329	#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
108		330
109	/* count trailing zero bits and count # of one bits */
110	#if ECB_GCC_VERSION(3,4)
111	#define ecb_ctz32(x) __builtin_ctz (x)
112	#define ecb_popcount32(x) __builtin_popcount (x)
113	#else
114	ECB_HEADER_INLINE int ecb_ctz32 (uint32_t x) ecb_const;
115	ECB_HEADER_INLINE int
116	ecb_ctz32 (uint32_t x)
117	{
118	int r = 0;
119
120	x &= -x; /* this isolates the lowest bit */
121
122	if (x & 0xaaaaaaaa) r += 1;
123	if (x & 0xcccccccc) r += 2;
124	if (x & 0xf0f0f0f0) r += 4;
125	if (x & 0xff00ff00) r += 8;
126	if (x & 0xffff0000) r += 16;
127
128	return r;
129	}
130
131	ECB_HEADER_INLINE int ecb_popcount32 (uint32_t x) ecb_const;
132	ECB_HEADER_INLINE int
133	ecb_popcount32 (uint32_t x)
134	{
135	x -= (x >> 1) & 0x55555555;
136	x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
137	x = ((x >> 4) + x) & 0x0f0f0f0f;
138	x *= 0x01010101;
139
140	return x >> 24;
141	}
142	#endif
143
144	#if ECB_GCC_VERSION(4,3)
145	# define ecb_bswap32(x) __builtin_bswap32 (x)
146	# define ecb_bswap16(x) (__builtin_bswap32(x) >> 16)
147	#else
148	ECB_HEADER_INLINE uint32_t ecb_bswap32 (uint32_t x) ecb_const;
149	ECB_HEADER_INLINE uint32_t
150	ecb_bswap32 (uint32_t x)
151	{
152	return (x >> 24)
153	\| ((x >> 8) & 0x0000ff00)
154	\| ((x << 8) & 0x00ff0000)
155	\| (x << 24);
156	}
157
158	ECB_HEADER_INLINE uint32_t ecb_bswap16 (uint32_t x) ecb_const;
159	ECB_HEADER_INLINE uint32_t
160	ecb_bswap16 (uint32_t x)
161	{
162	return ((x >> 8) & 0xff)
163	\| ((x << 8) & 0x00ff0000)
164	\| (x << 24);
165	}
166	#endif
167
168	#if ECB_GCC_VERSION(4,5)
169	# define ecb_unreachable() __builtin_unreachable ()
170	#else
171	/* this seems to work fine, but gcc always emits a warning for it :/ */
172	ECB_HEADER_INLINE void ecb_unreachable (void) ecb_noreturn;
173	ECB_HEADER_INLINE void ecb_unreachable (void) { }
174	#endif
175
176	ECB_HEADER_INLINE unsigned char ecb_byteorder_helper (void) ecb_const;	331	ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
177	ECB_HEADER_INLINE unsigned char	332	ecb_function_ unsigned char
178	ecb_byteorder_helper (void)	333	ecb_byteorder_helper (void)
179	{	334	{
180	const uint32_t u = 0x11223344;	335	const uint32_t u = 0x11223344;
181	return (unsigned char )&u;	336	return (unsigned char )&u;
182	}	337	}
183		338
184	ECB_HEADER_INLINE ecb_bool ecb_big_endian (void) ecb_const;	339	ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
185	ECB_HEADER_INLINE ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; };	340	ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
186	ECB_HEADER_INLINE ecb_bool ecb_little_endian (void) ecb_const;	341	ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
187	ECB_HEADER_INLINE ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; };	342	ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
188		343
189	#if ECB_GCC_VERSION(3,0)	344	#if ECB_GCC_VERSION(3,0) \|\| ECB_C99
190	# define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))	345	#define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
191	#else	346	#else
192	# define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))	347	#define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
193	#endif	348	#endif
194		349
195	#if ecb_cplusplus_does_not_suck	350	#if ecb_cplusplus_does_not_suck
196	// does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm)	351	/* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
197	template<typename T, int N>	352	template<typename T, int N>
198	static inline int ecb_array_length (const T (&arr)[N])	353	static inline int ecb_array_length (const T (&arr)[N])
199	{	354	{
200	return N;	355	return N;
201	}	356	}
202	#else	357	#else
203	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))	358	#define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
204	#endif	359	#endif
205		360
206	ECB_INLINE uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
207	ECB_INLINE uint32_t
208	ecb_rotr32 (uint32_t x, unsigned int count)
209	{
210	return (x << (32 - count)) \| (x >> count);
211	}
212
213	ECB_INLINE uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
214	ECB_INLINE uint32_t
215	ecb_rotl32 (uint32_t x, unsigned int count)
216	{
217	return (x >> (32 - count)) \| (x << count);
218	}
219
220	#endif	361	#endif
221		362

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Comparing libeio/ecb.h (file contents): Revision 1.1 by root, Fri Jun 10 12:35:18 2011 UTC vs. Revision 1.6 by root, Tue Jul 26 11:07:08 2011 UTC

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Comparing libeio/ecb.h (file contents):
Revision 1.1 by root, Fri Jun 10 12:35:18 2011 UTC vs.
Revision 1.6 by root, Tue Jul 26 11:07:08 2011 UTC