diff options
Diffstat (limited to 'ext/hash/php_hash_fnv.h')
| -rw-r--r-- | ext/hash/php_hash_fnv.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/ext/hash/php_hash_fnv.h b/ext/hash/php_hash_fnv.h new file mode 100644 index 0000000..3eeb046 --- /dev/null +++ b/ext/hash/php_hash_fnv.h @@ -0,0 +1,79 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2013 The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Author: Michael Maclean <mgdm@php.net> | + +----------------------------------------------------------------------+ +*/ + +/* $Id$ */ + +#ifndef PHP_HASH_FNV_H +#define PHP_HASH_FNV_H + +#define PHP_FNV1_32_INIT ((php_hash_uint32)0x811c9dc5) +#define PHP_FNV1_32A_INIT PHP_FNV1_32_INIT + +#define PHP_FNV_32_PRIME ((php_hash_uint32)0x01000193) + +#define PHP_FNV1_64_INIT ((php_hash_uint64)0xcbf29ce484222325ULL) +#define PHP_FNV1A_64_INIT FNV1_64_INIT + +#define PHP_FNV_64_PRIME ((php_hash_uint64)0x100000001b3ULL) + + +/* + * hash types + */ +enum php_fnv_type { + PHP_FNV_NONE = 0, /* invalid FNV hash type */ + PHP_FNV0_32 = 1, /* FNV-0 32 bit hash */ + PHP_FNV1_32 = 2, /* FNV-1 32 bit hash */ + PHP_FNV1a_32 = 3, /* FNV-1a 32 bit hash */ + PHP_FNV0_64 = 4, /* FNV-0 64 bit hash */ + PHP_FNV1_64 = 5, /* FNV-1 64 bit hash */ + PHP_FNV1a_64 = 6, /* FNV-1a 64 bit hash */ +}; + +typedef struct { + php_hash_uint32 state; +} PHP_FNV132_CTX; + +typedef struct { + php_hash_uint64 state; +} PHP_FNV164_CTX; + + +PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context); +PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen); +PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen); +PHP_HASH_API void PHP_FNV132Final(unsigned char digest[16], PHP_FNV132_CTX * context); + +PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context); +PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen); +PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen); +PHP_HASH_API void PHP_FNV164Final(unsigned char digest[16], PHP_FNV164_CTX * context); + +static php_hash_uint32 fnv_32_buf(void *buf, size_t len, php_hash_uint32 hval, int alternate); +static php_hash_uint64 fnv_64_buf(void *buf, size_t len, php_hash_uint64 hval, int alternate); + +#endif + +/* + * Local variables: + * tab-width: 4 + * c-basic-offset: 4 + * End: + * vim600: noet sw=4 ts=4 fdm=marker + * vim<600: noet sw=4 ts=4 + */ |