/usr/include/osgDB/ObjectCache is in libopenscenegraph-3.4-dev 3.4.0+dfsg1-4+b3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGDB_OBJECTCACHE
#define OSGDB_OBJECTCACHE 1
#include <osg/Node>
#include <osgDB/ReaderWriter>
#include <osgDB/DatabaseRevisions>
#include <map>
namespace osgDB {
class OSGDB_EXPORT ObjectCache : public osg::Referenced
{
public:
ObjectCache();
/** For each object in the cache which has an reference count greater than 1
* (and therefore referenced by elsewhere in the application) set the time stamp
* for that object in the cache to specified time.
* This would typically be called once per frame by applications which are doing database paging,
* and need to prune objects that are no longer required.
* The time used should be taken from the FrameStamp::getReferenceTime().*/
void updateTimeStampOfObjectsInCacheWithExternalReferences(double referenceTime);
/** Removed object in the cache which have a time stamp at or before the specified expiry time.
* This would typically be called once per frame by applications which are doing database paging,
* and need to prune objects that are no longer required, and called after the a called
* after the call to updateTimeStampOfObjectsInCacheWithExternalReferences(expirtyTime).*/
void removeExpiredObjectsInCache(double expiryTime);
/** Remove all objects in the cache regardless of having external references or expiry times.*/
void clear();
/** Add contents of specified ObjectCache to this object cache.*/
void addObjectCache(ObjectCache* object);
/** Add a filename,object,timestamp triple to the Registry::ObjectCache.*/
void addEntryToObjectCache(const std::string& filename, osg::Object* object, double timestamp = 0.0);
/** Remove Object from cache.*/
void removeFromObjectCache(const std::string& fileName);
/** Get an Object from the object cache*/
osg::Object* getFromObjectCache(const std::string& fileName);
/** Get an ref_ptr<Object> from the object cache*/
osg::ref_ptr<osg::Object> getRefFromObjectCache(const std::string& fileName);
/** call rleaseGLObjects on all objects attached to the object cache.*/
void releaseGLObjects(osg::State* state);
protected:
virtual ~ObjectCache();
typedef std::pair<osg::ref_ptr<osg::Object>, double > ObjectTimeStampPair;
typedef std::map<std::string, ObjectTimeStampPair > ObjectCacheMap;
ObjectCacheMap _objectCache;
OpenThreads::Mutex _objectCacheMutex;
};
}
#endif
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