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https://git.dev.opencascade.org/repos/occt.git
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1103eb60af
NCollection containers update:
- NCollection_Array1 - updated functionality
- NCollection_Array2 - NCollection_Array1 as a wrapper for 2array
- NCollection_Vector -> NCollection_DynamicArray was renamed and reworked.
TCollection:
- Use static empty string to avoid allocations on empty string
NCollection allocators update:
- NCollection_Allocator - allocator that used Standard::Allocate
- NCollection_OccAllocator - allocator-wrapper that used OCC BaseAllocator objects
- NCollection_IncAllocator - rework to increase performance
Standard:
- Rework functionality to use different allocation libs
- Implement basic of new way to wrap allocations tools
- Define 4 ways to allocation (defines in configure stage)
Additional changes:
- Hash function uses std::hash functionality
- size_t as a hash value
- New HashUtils with Murmur and FVN hash algo for x32 and x64
- Deprecated _0.cxx and .gxx DE classes reorganized
- Create own utility for std memory
- Update Standard_Transient to be more platform-independent
Math TK changes:
- math_Vector -> match_BaseVector<>
- Buffer decreased to cash 32 elements instead of 512
75 lines
3.2 KiB
C++
75 lines
3.2 KiB
C++
// Created on: 2002-04-12
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// Created by: Alexander KARTOMIN (akm)
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// Copyright (c) 2002-2023 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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// Purpose: Basic class for memory allocation wizards.
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// Defines the interface for devising different allocators
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// firstly to be used by collections of NCollection, though it
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// it is not deferred. It allocates/frees the memory through
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// Standard procedures, thus it is unnecessary (and sometimes
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// injurious) to have more than one such allocator. To avoid
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// creation of multiple objects the constructors were maid
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// inaccessible. To create the BaseAllocator use the method
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// CommonBaseAllocator.
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// Note that this object is managed by Handle.
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#ifndef NCollection_BaseAllocator_HeaderFile
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#define NCollection_BaseAllocator_HeaderFile
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#include <Standard_DefineHandle.hxx>
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#include <Standard_Transient.hxx>
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/**
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* Purpose: Basic class for memory allocation wizards.
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* Defines the interface for devising different allocators
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* firstly to be used by collections of NCollection, though it
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* it is not deferred. It allocates/frees the memory through
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* Standard procedures, thus it is unnecessary (and sometimes
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* injurious) to have more than one such allocator. To avoid
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* creation of multiple objects the constructors were maid
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* inaccessible. To create the BaseAllocator use the method
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* CommonBaseAllocator.
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* Note that this object is managed by Handle.
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*/
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class NCollection_BaseAllocator : public Standard_Transient
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{
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public:
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// ---------- PUBLIC METHODS ------------
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Standard_EXPORT virtual void* Allocate (const size_t theSize);
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Standard_EXPORT virtual void* AllocateOptimal(const size_t theSize);
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Standard_EXPORT virtual void Free (void* theAddress);
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//! CommonBaseAllocator
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//! This method is designed to have the only one BaseAllocator (to avoid
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//! useless copying of collections). However one can use operator new to
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//! create more BaseAllocators, but it is injurious.
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Standard_EXPORT static const Handle(NCollection_BaseAllocator)&
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CommonBaseAllocator(void);
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protected:
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//! Constructor - prohibited
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NCollection_BaseAllocator() {}
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private:
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//! Copy constructor - prohibited
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NCollection_BaseAllocator(const NCollection_BaseAllocator&) = delete;
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public:
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// ---------- CasCade RunTime Type Information
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DEFINE_STANDARD_RTTIEXT(NCollection_BaseAllocator,Standard_Transient)
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};
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DEFINE_STANDARD_HANDLE(NCollection_BaseAllocator,Standard_Transient)
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#endif
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