khanat-opennel-code/code/nel/src/misc/cdb_bank_handler.cpp
2013-03-26 13:56:16 +01:00

109 lines
3 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/>.
#include "stdmisc.h"
#include "nel/misc/cdb_bank_handler.h"
namespace NLMISC{
CCDBBankHandler::CCDBBankHandler(uint maxbanks) :
_CDBBankToUnifiedIndexMapping( maxbanks, std::vector< uint >() ),
_FirstLevelIdBitsByBank( maxbanks )
{
std::fill( _FirstLevelIdBitsByBank.begin(), _FirstLevelIdBitsByBank.end(), 0 );
maxBanks = maxbanks;
}
uint CCDBBankHandler::getUIDForBank( uint bank ) const
{
uint uid = static_cast< uint >( -1 );
for( uint i = 0; i < _UnifiedIndexToBank.size(); i++ )
if( _UnifiedIndexToBank[ i ] == bank )
return i;
return uid;
}
uint CCDBBankHandler::getBankByName( const std::string &name ) const
{
uint b = static_cast< uint >( -1 );
for( uint i = 0; i < _CDBBankNames.size(); i++ )
if( _CDBBankNames[ i ].compare( name ) == 0 )
return i;
return b;
}
void CCDBBankHandler::mapNodeByBank( const std::string &bankName )
{
uint b = getBankByName( bankName );
// no such bank
if( b == static_cast< uint >( -1 ) )
return;
_CDBBankToUnifiedIndexMapping[ b ].push_back( _CDBLastUnifiedIndex );
++_CDBLastUnifiedIndex;
_UnifiedIndexToBank.push_back( b );
}
void CCDBBankHandler::fillBankNames( const char **strings, uint size )
{
_CDBBankNames.clear();
for( uint i = 0; i < size; i++ )
_CDBBankNames.push_back( std::string( strings[ i ] ) );
}
void CCDBBankHandler::reset()
{
for( std::vector< std::vector< uint > >::iterator itr =_CDBBankToUnifiedIndexMapping.begin();
itr != _CDBBankToUnifiedIndexMapping.end(); ++itr )
itr->clear();
_UnifiedIndexToBank.clear();
_CDBLastUnifiedIndex = 0;
}
void CCDBBankHandler::calcIdBitsByBank()
{
for( uint bank = 0; bank != maxBanks; bank++ )
{
uint nbNodesOfBank = static_cast< uint >( _CDBBankToUnifiedIndexMapping[ bank ].size() );
uint idb = 0;
if ( nbNodesOfBank > 0 )
for ( idb = 1; nbNodesOfBank > unsigned( 1 << idb ) ; idb++ )
;
_FirstLevelIdBitsByBank[ bank ] = idb;
}
}
void CCDBBankHandler::resize( uint newSize )
{
reset();
_CDBBankNames.clear();
_CDBBankToUnifiedIndexMapping.clear();
_FirstLevelIdBitsByBank.clear();
_CDBBankToUnifiedIndexMapping.reserve( newSize );
_FirstLevelIdBitsByBank.reserve( newSize );
}
}