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136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef NL_CLIENT_ID_LOOKUP_H
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#define NL_CLIENT_ID_LOOKUP_H
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#include "nel/misc/types_nl.h"
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#include "game_share/ryzom_entity_id.h"
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#include "fe_types.h"
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/**
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* CClientIdLookup.
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* Allows to translate an entity CEntityId to a TClientId if the specified entity
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* is played by a client connected on this frontend service, and
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* also translates a TEntityIndex to a TClientId.
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*
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* \author Olivier Cado
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* \author Nevrax France
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* \date 2002
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*/
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class CClientIdLookup
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{
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public:
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/// Constructor
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CClientIdLookup() {}
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/// Init
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void init( TDataSetIndex maxNbRows )
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{
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_EntityIndexToClient.resize( maxNbRows );
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uint i;
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for ( i=0; i!=maxNbRows; ++i )
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{
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_EntityIndexToClient[i] = INVALID_CLIENT;
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}
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}
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/** Return the client id corresponding to the specified CEntityId,
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* or INVALID_CLIENT if there is no such client on this frontend service.
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*/
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TClientId getClientId( const NLMISC::CEntityId& id )
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{
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//nlinfo( "get: %u elements", _IdToClientMap.size() );
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TIdToClientMap::const_iterator iecm = _IdToClientMap.find( id );
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if ( iecm != _IdToClientMap.end() )
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return (*iecm).second;
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else
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return INVALID_CLIENT;
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}
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/** Return the client id corresponding to the specified entity index (fast),
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* or INVALID_CLIENT if there is no such client on this frontend service.
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*/
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TClientId getClientId( const TEntityIndex& entityindex )
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{
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return _EntityIndexToClient[entityindex.getIndex()];
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}
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/// Test if an entity id is present
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bool findEntityId( const NLMISC::CEntityId& id )
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{
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return _IdToClientMap.find( id ) != _IdToClientMap.end();
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}
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/// Add an id mapping
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bool addId( const NLMISC::CEntityId& id, TClientId clientid )
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{
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nlassert( clientid <= MaxNbClients );
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return _IdToClientMap.insert( std::make_pair( id, clientid ) ).second; // false if Entity Index added twice to CClientIdLookup
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//nlinfo( "add: %u elements", _IdToClientMap.size() );
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}
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/// Add an entity index mapping for fast access
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void addEntityIndex( const TEntityIndex& entityindex, TClientId clientid )
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{
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nlassert( clientid <= MaxNbClients );
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if ( _EntityIndexToClient[entityindex.getIndex()] != INVALID_CLIENT )
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nlwarning( "Trying to remap an entityindex to a different clientid");
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_EntityIndexToClient[entityindex.getIndex()] = clientid;
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}
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/// Remove a id mapping
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void removeEId( const NLMISC::CEntityId& id )
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{
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if ( _IdToClientMap.erase( id ) == 0 )
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nlwarning ("Cannot find EntityId %s to remove in EntityToClient (multiple use of the same account?)", id.toString().c_str() );
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}
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/// Remove an entity index mapping
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void removeEntityIndex( const TEntityIndex& entityindex )
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{
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_EntityIndexToClient[entityindex.getIndex()] = INVALID_CLIENT;
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}
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private:
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typedef std::vector<TClientId> TEntityIndexToClient;
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class CIdHash
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{
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public:
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size_t operator () ( NLMISC::CEntityId id ) const { return (uint32)id.getShortId(); }
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};
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typedef CHashMap<NLMISC::CEntityId, TClientId, CIdHash> TIdToClientMap;
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/// Access TClientId indexed by TEntityIndex (if the entity is a client connected on this FS)
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TEntityIndexToClient _EntityIndexToClient;
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/// Access TClientId using a id
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TIdToClientMap _IdToClientMap;
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};
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#endif // NL_CLIENT_ID_LOOKUP_H
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/* End of client_id_lookup.h */
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