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/*-
* Copyright (c) 2004 - 2011 CTPP Team
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the CTPP Team nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* CTPP2HashTable.hpp
*
* $CTPP$
*/
#ifndef _CTPP2_HASH_TABLE_HPP__
#define _CTPP2_HASH_TABLE_HPP__ 1
#include "CTPP2Types.h"
/**
@file CTPP2HashTable.hpp
@brief Zero collision hash
*/
namespace CTPP // C++ Template Engine
{
/**
@struct HashElement CTPP2HashTable.hpp <CTPP2HashTable.hpp>
@brief Static data variable
*/
struct HashElement
{
/** Hash value */
UINT_64 hash;
/** Data length */
UINT_64 value;
};
/**
@class ReducedHashTable CTPP2HashTable.hpp <CTPP2HashTable.hpp>
@brief Hash without collisions with reduced functionality
*/
class CTPP2DECL ReducedHashTable
{
public:
/**
@brief Constructor
@param aIElements - hash elements
@param iIPower - number of elements
*/
ReducedHashTable(const HashElement * aIElements,
const UINT_32 iIPower);
/**
@brief Get value from hash
@param szKey - key name
@param iKeyLength - key length
@return >0 - if success, -1 - if any error occured
*/
UINT_64 Get(CCHAR_P szKey,
const UINT_32 iKeyLength) const;
/**
@brief Get hash size
*/
UINT_64 Size() const;
/**
@brief A destructor
*/
~ReducedHashTable() throw();
private:
friend class VMDumper;
// Does not exist
ReducedHashTable(const ReducedHashTable & oRhs);
// Does not exist
ReducedHashTable & operator=(const ReducedHashTable & oRhs);
/** Hash elements */
const HashElement * aElements;
/** Power of 2 */
UINT_32 iPower;
/** Base of hash */
UINT_64 iBase;
};
/**
@class HashTable CTPP2HashTable.hpp <CTPP2HashTable.hpp>
@brief Hash without collisions
*/
class CTPP2DECL HashTable
{
public:
/**
@brief Constructor
*/
HashTable();
/**
@brief Get value from hash
@param szKey - key name
@param iKeyLength - key length
@return >0 - if success, -1 - if any error occured
*/
INT_64 Get(CCHAR_P szKey,
const UINT_32 iKeyLength) const;
/**
@brief Get hash size
*/
UINT_64 Size() const;
/**
@brief Put value into hash
@param szKey - key name
@param iKeyLength - key length
@param iValue - value to store
@return 0 - if success, -1 - if any error occured
*/
UINT_32 Put(CCHAR_P szKey,
const UINT_32 iKeyLength,
const UINT_64 iValue);
/**
@brief A destructor
*/
~HashTable() throw();
private:
friend class VMDumper;
// Does not exist
HashTable(const HashTable & oRhs);
// Does not exist
HashTable & operator=(const HashTable & oRhs);
/** Hash elements */
HashElement * aElements;
/** Power of 2 */
UINT_32 iPower;
/** Base of hash */
UINT_64 iBase;
/** Number of used elements */
UINT_64 iUsed;
/**
@brief Resize hash
*/
void Resize();
};
} // namespace CTPP
#endif // _CTPP2_HASH_TABLE_HPP__
// End.
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