makVrv::DtVirtualProgramCache Class Reference

class to hold a hashed map of strings to equivalent virtual programs to avoid repeated, duplicate creation of a virtual programs More...

Public Member Functions
virtual	~DtVirtualProgramCache ()
	DTOR. More...
virtual bool	findAndSetOn (const std::string &strHash, osg::StateSet *stateSet)
	Find a vp with a hash and set it on the state set, if found. More...
virtual void	cache (const std::string &strHash, osgEarth::VirtualProgram *virtualProgram)
	cache a virtual program with the given hash More...
virtual void	clear ()
	clear internal cache More...
virtual void	addRef (void)
	increase ref More...
virtual void	removeRef (void)
	decrease ref More...
virtual int	refCount (void) const
	get the ref count More...

Public Attributes
friend	DtVirtualProgramCacheCreator
	so that creator can access constructor More...

Protected Types
typedef osg::ref_ptr < osgEarth::VirtualProgram >	VirtualProgramRef
typedef std::map< std::string, VirtualProgramRef >	StringVpMap

Protected Member Functions
	DtVirtualProgramCache (DtDe &de)
	protected. only creator can create More...

Protected Attributes
StringVpMap	myMapHashesToVirtualPrograms
DtDe &	myDe
tbb::atomic< int >	myRefCount
tbb::mutex	myMapMutex

Private Member Functions
	DtVirtualProgramCache ()=delete
	not allowed More...
	DtVirtualProgramCache (const DtVirtualProgramCache &rhs)=delete
	not allowed More...
DtVirtualProgramCache &	operator= (const DtVirtualProgramCache &rhs)=delete
	not allowed More...

Detailed Description

class to hold a hashed map of strings to equivalent virtual programs to avoid repeated, duplicate creation of a virtual programs

Member Typedef Documentation

typedef osg::ref_ptr<osgEarth::VirtualProgram> makVrv::DtVirtualProgramCache::VirtualProgramRef

protected

typedef std::map<std::string, VirtualProgramRef> makVrv::DtVirtualProgramCache::StringVpMap

protected

Constructor & Destructor Documentation

virtual makVrv::DtVirtualProgramCache::~DtVirtualProgramCache ( )

virtual

DTOR.

makVrv::DtVirtualProgramCache::DtVirtualProgramCache ( DtDe &  de )

protected

protected. only creator can create

makVrv::DtVirtualProgramCache::DtVirtualProgramCache ( )

privatedelete

not allowed

makVrv::DtVirtualProgramCache::DtVirtualProgramCache ( const DtVirtualProgramCache &  rhs )

privatedelete

not allowed

Member Function Documentation

DtVirtualProgramCache& makVrv::DtVirtualProgramCache::operator= ( const DtVirtualProgramCache &  rhs )

privatedelete

not allowed

virtual bool makVrv::DtVirtualProgramCache::findAndSetOn ( const std::string &  strHash, osg::StateSet *  stateSet  )

virtual

Find a vp with a hash and set it on the state set, if found.

This was just a find returning a raw VP and that can get deleted from underneath/multi-threaded (was happening in cdb). The internal lock prevents this from happening.

virtual void makVrv::DtVirtualProgramCache::cache ( const std::string &  strHash, osgEarth::VirtualProgram *  virtualProgram  )

virtual

cache a virtual program with the given hash

virtual void makVrv::DtVirtualProgramCache::clear ( )

virtual

clear internal cache

virtual void makVrv::DtVirtualProgramCache::addRef ( void  )

virtual

increase ref

virtual void makVrv::DtVirtualProgramCache::removeRef ( void  )

virtual

decrease ref

virtual int makVrv::DtVirtualProgramCache::refCount ( void  ) const

virtual

get the ref count

Member Data Documentation

friend makVrv::DtVirtualProgramCache::DtVirtualProgramCacheCreator

so that creator can access constructor

StringVpMap makVrv::DtVirtualProgramCache::myMapHashesToVirtualPrograms

protected

DtDe& makVrv::DtVirtualProgramCache::myDe

protected

tbb::atomic<int> makVrv::DtVirtualProgramCache::myRefCount

protected

tbb::mutex makVrv::DtVirtualProgramCache::myMapMutex

mutableprotected

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The documentation for this class was generated from the following file:

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf4-10-branch/include/vrvOsg/DtVirtualProgramCache.h