Open CASCADE Technology  6.9.1
Public Member Functions
NIS_Allocator Class Reference

#include <NIS_Allocator.hxx>

Inheritance diagram for NIS_Allocator:
Inheritance graph
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Public Member Functions

 NIS_Allocator (const size_t theBlockSize=24600)
 
Standard_Size NAllocated () const
 
Standard_Size NFreed () const
 
void ResetCounters ()
 
virtual void * Allocate (const size_t size)
 
virtual void Free (void *anAddress)
 Free a previously allocated memory. Does nothing. More...
 
- Public Member Functions inherited from NCollection_IncAllocator
 NCollection_IncAllocator (const size_t theBlockSize=DefaultBlockSize)
 Constructor. More...
 
size_t GetMemSize () const
 Diagnostic method, returns the total allocated size. More...
 
 ~NCollection_IncAllocator ()
 Destructor (calls Clean() internally) More...
 
void * Reallocate (void *anAddress, const size_t oldSize, const size_t newSize)
 Reallocation: it is always allowed but is only efficient with the last allocated item. More...
 
void Reset (const Standard_Boolean doReleaseMem=Standard_True)
 Re-initialize the allocator so that the next Allocate call should start allocating in the very begining as though the allocator is just constructed. Warning: make sure that all previously allocated data are no more used in your code! 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_Transientoperator= (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

- Public Types inherited from NCollection_IncAllocator
typedef void * aligned_t
 
- 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...
 
- Static Public Attributes inherited from NCollection_IncAllocator
static const size_t DefaultBlockSize = 24600
 
- Protected Member Functions inherited from NCollection_IncAllocator
void Clean ()
 Flush all previously allocated data. All pointers returned by Allocate() become invalid – be very careful with this. More...
 
void * allocateNewBlock (const size_t cSize)
 Allocate a new block and return a pointer to it ** only for internal usage **. More...
 
- Protected Member Functions inherited from NCollection_BaseAllocator
 NCollection_BaseAllocator (void)
 Constructor - prohibited. More...
 
- Protected Attributes inherited from NCollection_IncAllocator
IBlockmyFirstBlock
 
size_t mySize
 
size_t myMemSize
 

Detailed Description

Subclass of Incremental Allocator. It is aware of the total allocated and released memory. Used in NIS_Interactive context as private allocator that manages all memory used by interactive objects.

Constructor & Destructor Documentation

NIS_Allocator::NIS_Allocator ( const size_t  theBlockSize = 24600)

Constructor.

Member Function Documentation

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

Allocate memory with given size. Returns NULL on failure

Reimplemented from NCollection_IncAllocator.

virtual void NIS_Allocator::Free ( void *  anAddress)
virtual

Free a previously allocated memory. Does nothing.

Reimplemented from NCollection_IncAllocator.

Standard_Size NIS_Allocator::NAllocated ( ) const
inline

Query the total number of allocated bytes

Standard_Size NIS_Allocator::NFreed ( ) const
inline

Query the total number of released bytes

void NIS_Allocator::ResetCounters ( )

Set both counters to zero. Should be called with method Reset of the base class NCollection_IncAlocator.


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