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0024405: TKernel - add aligned allocator class Standard_MMgrAligned

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New class NCollection_AlignedAllocator.
New macros STANDARD_ALIGNED.
New methods Standard::AllocateAligned() and Standard::FreeAligned().
Add missing Standard_EXPORT
This commit is contained in:
kgv
2014-04-03 16:31:35 +04:00
committed by apn
parent ad3217cd8d
commit acc625609d
7 changed files with 184 additions and 42 deletions
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2
src/NCollection/FILES
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@@ -4,6 +4,8 @@ NCollection_BaseAllocator.hxx
NCollection_BaseAllocator.cxx
NCollection_IncAllocator.hxx
NCollection_IncAllocator.cxx
NCollection_AlignedAllocator.hxx
NCollection_AlignedAllocator.cxx
NCollection_HeapAllocator.hxx
NCollection_HeapAllocator.cxx
NCollection_StdAllocator.hxx

47
src/NCollection/NCollection_AlignedAllocator.cxx Normal file
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@@ -0,0 +1,47 @@
// Created on: 2014-03-31
// Created by: Kirill Gavrilov
// Copyright (c) 2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#include <NCollection_AlignedAllocator.hxx>
IMPLEMENT_STANDARD_HANDLE (NCollection_AlignedAllocator, NCollection_BaseAllocator)
IMPLEMENT_STANDARD_RTTIEXT (NCollection_AlignedAllocator, NCollection_BaseAllocator)
//=======================================================================
//function : NCollection_AlignedAllocator()
//purpose : Constructor
//=======================================================================
NCollection_AlignedAllocator::NCollection_AlignedAllocator (const size_t theAlignment)
: myAlignment (theAlignment)
{
//
}
//=======================================================================
//function : Allocate
//purpose : allocate a memory
//=======================================================================
void* NCollection_AlignedAllocator::Allocate (const size_t theSize)
{
return Standard::AllocateAligned (theSize, myAlignment);
}
//=======================================================================
//function : Free
//purpose :
//=======================================================================
void NCollection_AlignedAllocator::Free (void* thePtr)
{
Standard::FreeAligned (thePtr);
}

56
src/NCollection/NCollection_AlignedAllocator.hxx Normal file
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@@ -0,0 +1,56 @@
// Created on: 2014-03-31
// Created by: Kirill Gavrilov
// Copyright (c) 2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef NCollection_AlignedAllocator_HeaderFile
#define NCollection_AlignedAllocator_HeaderFile
#include <NCollection_BaseAllocator.hxx>
#include <Standard.hxx>
//! NCollection allocator with managed memory alignment capabilities.
class NCollection_AlignedAllocator : public NCollection_BaseAllocator
{
public:
//! Constructor. The alignment should be specified explicitly:
//! 16 bytes for SSE instructions
//! 32 bytes for AVX instructions
Standard_EXPORT NCollection_AlignedAllocator (const size_t theAlignment);
//! Allocate memory with given size. Returns NULL on failure.
Standard_EXPORT virtual void* Allocate (const size_t theSize);
//! Free a previously allocated memory.
Standard_EXPORT virtual void Free (void* thePtr);
private:
NCollection_AlignedAllocator (const NCollection_AlignedAllocator& );
NCollection_AlignedAllocator& operator= (const NCollection_AlignedAllocator& );
protected:
size_t myAlignment; //!< alignment in bytes
public:
DEFINE_STANDARD_RTTI (NCollection_AlignedAllocator)
};
// Definition of HANDLE object using Standard_DefineHandle.hxx
DEFINE_STANDARD_HANDLE (NCollection_AlignedAllocator, NCollection_BaseAllocator)
#endif // NCollection_AlignedAllocator_HeaderFile