67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* PVVMUD a 3D MUD
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* Copyright (C) 1998-1999 Programvareverkstedet (pvv@pvv.org)
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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 General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "pvvmud.H"
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#include "cache.H"
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CCache::CCache(){
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cache = new CObjectList();
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}
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CObject * CCache::failFunc(int id){
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return NULL;
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}
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CObject* CCache::add(int id, CObject * item){
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CObjectListItem * listItem = cache->getFirst();
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while ( listItem != NULL ){
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CCacheItem * cacheItem = (CCacheItem*)listItem->getObject();
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if (cacheItem->getId() == id){
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return cacheItem->setItem(item);
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}
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listItem = listItem->getNext();
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}
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CCacheItem * newItem = new CCacheItem(id,item);
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cache->addLast((CObject*)newItem);
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return NULL;
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}
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CObject * CCache::get(int id){
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CObjectListItem * item = cache->getFirst();
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while ( item != NULL ){
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CCacheItem * cacheItem = (CCacheItem*)item->getObject();
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if (cacheItem->getId() == id) return cacheItem->getItem();
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item = item->getNext();
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}
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// Failed to find object in cache calling failFunc
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CObject * newObject = failFunc(id);
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if (newObject != NULL) add(id,newObject);
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return newObject;
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}
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void CCache::clear(){
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cache->deleteAll();
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}
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