This memory allocator creates dedicated heap for allocations. This technics available only on Windows platform (no alternative on Unix systems). It may be used to take control over memory fragmentation because on destruction ALL allocated memory will be released to the system. More...

#include <NCollection_WinHeapAllocator.hxx>

Inheritance diagram for NCollection_WinHeapAllocator:

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Public Member Functions
	NCollection_WinHeapAllocator (const size_t theInitSizeBytes=0x80000)
	Main constructor. More...

virtual	~NCollection_WinHeapAllocator ()
	Destructor. More...

virtual void *	Allocate (const Standard_Size theSize)
	Allocate memory. More...

virtual void	Free (void *theAddress)
	Release memory. More...

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...

Additional Inherited Members
Static Public Member Functions inherited from NCollection_BaseAllocator
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 inherited from NCollection_BaseAllocator
	NCollection_BaseAllocator (void)
	Constructor - prohibited. More...

Detailed Description

This memory allocator creates dedicated heap for allocations. This technics available only on Windows platform (no alternative on Unix systems). It may be used to take control over memory fragmentation because on destruction ALL allocated memory will be released to the system.

This allocator can also be created per each working thread hovewer it real multi-threading performance is dubious.

Notice that this also means that existing pointers will be broken and you shoould control that allocator is alive along all objects allocated with him.