NCollection_BaseAllocator Class Reference

#include <NCollection_BaseAllocator.hxx>

Inheritance diagram for NCollection_BaseAllocator:

Public Member Functions
virtual void *	Allocate (const size_t size)
virtual void	Free (void *anAddress)
Public Member Functions inherited from MMgt_TShared
virtual void	Delete () const
	Memory deallocator for transient classes. More...
Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...
	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...
Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...
virtual	~Standard_Transient ()
	Destructor must be virtual. More...
virtual const Handle_Standard_Type &	DynamicType () const
	Returns a type information object about this object. More...
Standard_Boolean	IsInstance (const Handle_Standard_Type &theType) const
	Returns a true value if this is an instance of Type. More...
Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...
Standard_Boolean	IsKind (const Handle_Standard_Type &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...
virtual Handle_Standard_Transient	This () const
	Returns a Handle which references this object. Must never be called to objects created in stack. More...
Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...

Static Public Member Functions
static const Handle< NCollection_BaseAllocator > &	CommonBaseAllocator (void)
	CommonBaseAllocator This method is designed to have the only one BaseAllocator (to avoid useless copying of collections). However one can use operator new to create more BaseAllocators, but it is injurious. More...
static void	StandardCallBack (const Standard_Boolean theIsAlloc, const Standard_Address theStorage, const Standard_Size theRoundSize, const Standard_Size theSize)
	Callback function to register alloc/free calls. More...
static void	PrintMemUsageStatistics ()
	Prints memory usage statistics cumulated by StandardCallBack. More...

Protected Member Functions
	NCollection_BaseAllocator (void)
	Constructor - prohibited. More...

Detailed Description

Purpose: Basic class for memory allocation wizards. Defines the interface for devising different allocators firstly to be used by collections of NCollection, though it it is not deferred. It allocates/frees the memory through Standard procedures, thus it is unnecessary (and sometimes injurious) to have more than one such allocator. To avoid creation of multiple objects the constructors were maid inaccessible. To create the BaseAllocator use the method CommonBaseAllocator. Note that this object is managed by Handle.

Constructor & Destructor Documentation

NCollection_BaseAllocator::NCollection_BaseAllocator ( void  )

inlineprotected

Constructor - prohibited.

Member Function Documentation

virtual void* NCollection_BaseAllocator::Allocate ( const size_t  size )

virtual

Reimplemented in NCollection_AccAllocator, NIS_Allocator, NCollection_IncAllocator, NCollection_WinHeapAllocator, NCollection_AlignedAllocator, and NCollection_HeapAllocator.

static const Handle< NCollection_BaseAllocator >& NCollection_BaseAllocator::CommonBaseAllocator ( void  )

static

CommonBaseAllocator This method is designed to have the only one BaseAllocator (to avoid useless copying of collections). However one can use operator new to create more BaseAllocators, but it is injurious.

virtual void NCollection_BaseAllocator::Free ( void *  anAddress )

virtual

Reimplemented in NCollection_AccAllocator, NIS_Allocator, NCollection_IncAllocator, NCollection_WinHeapAllocator, NCollection_AlignedAllocator, and NCollection_HeapAllocator.

static void NCollection_BaseAllocator::PrintMemUsageStatistics ( )

static

Prints memory usage statistics cumulated by StandardCallBack.

static void NCollection_BaseAllocator::StandardCallBack ( const Standard_Boolean  theIsAlloc, const Standard_Address  theStorage, const Standard_Size  theRoundSize, const Standard_Size  theSize  )

static

Callback function to register alloc/free calls.

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

• NCollection_BaseAllocator.hxx