/**
******************************************************************************
*
* @file       memorycache.cpp
* @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief      
* @see        The GNU Public License (GPL) Version 3
* @defgroup   OPMapWidget
* @{
* 
*****************************************************************************/

/* 
* This program is free software; you can redistribute it and/or modify 
* it under the terms of the GNU 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 General Public License 
* for more details.
* 
* You should have received a copy of the GNU General Public License along 
* with this program; if not, write to the Free Software Foundation, Inc., 
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

#include "memorycache.h"


//TODO add readwrite lock

namespace core {

MemoryCache::MemoryCache()
{

}


QByteArray MemoryCache::GetTileFromMemoryCache(const RawTile &tile)
{
    kiberCacheLock.lockForRead();
    QByteArray pic;
    pic=TilesInMemory.cachequeue.value(tile);
    // TilesInMemory.find(key,&pic);
    kiberCacheLock.unlock();
    return pic;
}

void MemoryCache::AddTileToMemoryCache(const RawTile &tile, const QByteArray &pic)
{
    kiberCacheLock.lockForWrite();
    // QPixmapCache::Key key=TilesInMemory.insert(pic);
    TilesInMemory.memoryCacheSize +=pic.size();
#ifdef DEBUG_MEMORY_CACHE
    qDebug()<<"Current memory="<<TilesInMemory.memoryCacheSize<<" in "<<TilesInMemory.cachequeue.count()<<" tiles";
#endif
    TilesInMemory.cachequeue.insert(tile,pic);
    TilesInMemory.list.enqueue(tile);

    kiberCacheLock.unlock();
}

} // end of namespace core
