/usr/include/ossim/imaging/ossimTileCache.h is in libossim-dev 2.2.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// License: MIT
//
// See LICENSE.txt file in the top level directory for more details.
// License: See top level LICENSE.txt file.
//
// Author: Garrett Potts
// Description: This file contains the cache algorithm
//
//***********************************
// $Id: ossimTileCache.h 17207 2010-04-25 23:21:14Z dburken $
#ifndef DataCache_HEADER
#define DataCache_HEADER
#include <map>
#include <stack>
using namespace std;
#include <ossim/base/ossimConstants.h>
#include <ossim/base/ossimDpt.h>
#include <ossim/base/ossimDpt3d.h>
#include <ossim/base/ossimRefPtr.h>
#include <ossim/base/ossimDataObject.h>
class OSSIM_DLL ossimTileCache
{
public:
ossimTileCache(long numberOfBuckets = 10);
virtual ~ossimTileCache();
/*!
* This will return a tile if found. Note this tile is still
* owned by the cache.
*/
virtual ossimDataObject* get(const ossimDpt3d &origin,
unsigned long resLevel=0);
/*!
* Will remove the tile from the cache and will not delete. Note:
* the cache no longer owns the tile.
*/
virtual ossimDataObject* remove(const ossimDpt3d &origin,
unsigned long resLevel=0);
/*!
* This will not duplicate the tile. Note the tile is owned
* by the cache.
*/
virtual ossimDataObject* insert(const ossimDpt3d &origin,
ossimDataObject* data,
unsigned long resLevel=0);
/*!
* Not implemented
*/
void invalidate();
/*!
* Not implemented
*/
virtual void invalidate(const ossimDpt3d &origin,
ossim_uint32 resLevel);
virtual long numberOfItems()const{return theCache?(long)theCache->size():(long)0;}
virtual void display()const;
virtual ossim_uint32 sizeInBytes(){return theSizeInBytes;}
protected:
struct ossimTileInformation
{
public:
friend ostream& operator <<(ostream &out,
const ossimTileInformation& /* info */)
{
return out;
}
ossimTileInformation(ossimDataObject* aTile,
const ossimDpt3d &origin = ossimDpt(0,0),
unsigned long resLevel = 0)
: theCachedTile(aTile),
theOrigin(origin),
theResLevel(resLevel)
{}
ossimRefPtr<ossimDataObject> theCachedTile;
ossimDpt3d theOrigin;
unsigned long theResLevel;
};
typedef multimap<ossim_uint32, ossimTileInformation*>::iterator Iterator;
typedef ossimTileInformation* CacheDataPtr;
typedef ossimTileInformation CacheData;
void deleteAll();
virtual ossim_uint32 bucketHash(const ossimDpt3d &aPt);
virtual ossim_uint32 tileId(const ossimDpt3d &aPt);
multimap<ossim_uint32, ossimTileInformation*> *theCache;
long theNumberOfBuckets;
ossim_uint32 theSizeInBytes;
};
#endif
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