text: /*
    +----------------------------------------------------------------------+
    | PHP Version 5                                                        |
    +----------------------------------------------------------------------+
    | Copyright (c) 1997-2010 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
   */
  