Open CASCADE Technology  7.0.0
Public Member Functions | Static Public Member Functions | Protected Member Functions

NCollection_BaseAllocator Class Reference

#include <NCollection_BaseAllocator.hxx>

Inheritance diagram for NCollection_BaseAllocator:
Inheritance graph
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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 override
 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_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::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 opencascade::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...
 
Standard_TransientThis () const
 Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. 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...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 

Protected Member Functions

 NCollection_BaseAllocator (void)
 Constructor - prohibited. More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. 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
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
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.


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