mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-09-20 19:50:32 +00:00
87 lines
2 KiB
C++
87 lines
2 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
|
|
#ifndef NL_CDB_CHECK_SUM_H
|
|
#define NL_CDB_CHECK_SUM_H
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
|
|
|
|
/**
|
|
* class implementing check sum for the client database
|
|
* these check sum can be used to ensure that linked properties have all been modified
|
|
* \author Nicolas Brigand
|
|
* \author Nevrax France
|
|
* \date 2002
|
|
*/
|
|
class CCDBCheckSum
|
|
{
|
|
public:
|
|
///constructor
|
|
CCDBCheckSum();
|
|
|
|
//clear the sum
|
|
void clear()
|
|
{
|
|
_Sum = 0;
|
|
};
|
|
|
|
///add an uint8 to the sum
|
|
void add(uint8 el);
|
|
|
|
///add a value to the check sum
|
|
template <class T>
|
|
void add(const T & el)
|
|
{
|
|
T value = el;
|
|
for (uint8 i=0; i< sizeof(T); i++)
|
|
{
|
|
uint8 tmp = (uint8)(value & 0xFF);
|
|
add(tmp);
|
|
value >>=8;
|
|
}
|
|
}
|
|
|
|
///add a vector to the sum
|
|
template <class T>
|
|
void addVector(const std::vector<T> & vect)
|
|
{
|
|
for (typename std::vector<T>::const_iterator it = vect.begin(); it != vect.end(); it++)
|
|
add(*it);
|
|
}
|
|
|
|
uint32 getSum()
|
|
{
|
|
return _Sum;
|
|
}
|
|
private:
|
|
///the checsum result
|
|
uint32 _Sum;
|
|
|
|
///the following values are used in the check algorithm
|
|
uint32 _Factor;
|
|
uint32 _Const1;
|
|
uint32 _Const2;
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif // NL_CDB_CHECK_SUM_H
|
|
|
|
/* End of cdb_check_sum.h */
|