Open CASCADE Technology  7.4.0
Public Member Functions | Protected Attributes

NCollection_AlignedAllocator Class Reference

NCollection allocator with managed memory alignment capabilities. More...

#include <NCollection_AlignedAllocator.hxx>

Inheritance diagram for NCollection_AlignedAllocator:
Inheritance graph
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Public Member Functions

 NCollection_AlignedAllocator (const size_t theAlignment)
 Constructor. The alignment should be specified explicitly: 16 bytes for SSE instructions 32 bytes for AVX instructions. More...
 
virtual void * Allocate (const size_t theSize) override
 Allocate memory with given size. Returns NULL on failure. More...
 
virtual void Free (void *thePtr) override
 Free a previously allocated memory. 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 void Delete () const
 Memory deallocator for transient classes. 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...
 

Protected Attributes

size_t myAlignment
 alignment in bytes More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- 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 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 inherited from NCollection_BaseAllocator
 NCollection_BaseAllocator (void)
 Constructor - prohibited. More...
 

Detailed Description

NCollection allocator with managed memory alignment capabilities.

Constructor & Destructor Documentation

◆ NCollection_AlignedAllocator()

NCollection_AlignedAllocator::NCollection_AlignedAllocator ( const size_t  theAlignment)

Constructor. The alignment should be specified explicitly: 16 bytes for SSE instructions 32 bytes for AVX instructions.

Member Function Documentation

◆ Allocate()

virtual void* NCollection_AlignedAllocator::Allocate ( const size_t  theSize)
overridevirtual

Allocate memory with given size. Returns NULL on failure.

Reimplemented from NCollection_BaseAllocator.

◆ Free()

virtual void NCollection_AlignedAllocator::Free ( void *  thePtr)
overridevirtual

Free a previously allocated memory.

Reimplemented from NCollection_BaseAllocator.

Field Documentation

◆ myAlignment

size_t NCollection_AlignedAllocator::myAlignment
protected

alignment in bytes


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