| 09711f37 |
1 | // Created on: 2011-07-11 |
| 2 | // Created by: Kirill GAVRILOV |
| 3 | // Copyright (c) 2002-2014 OPEN CASCADE SAS |
| 4 | // |
| 5 | // This file is part of Open CASCADE Technology software library. |
| 6 | // |
| 7 | // This library is free software; you can redistribute it and/or modify it under |
| 8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 9 | // by the Free Software Foundation, with special exception defined in the file |
| 10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 11 | // distribution for complete text of the license and disclaimer of any warranty. |
| 12 | // |
| 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 14 | // commercial license or contractual agreement. |
| 9df7f429 |
15 | |
| 16 | #ifndef NCollection_WinHeapAllocator_HeaderFile |
| 17 | #define NCollection_WinHeapAllocator_HeaderFile |
| 18 | |
| 19 | #include <NCollection_BaseAllocator.hxx> |
| 20 | |
| 21 | //! This memory allocator creates dedicated heap for allocations. |
| 22 | //! This technics available only on Windows platform |
| 23 | //! (no alternative on Unix systems). |
| 24 | //! It may be used to take control over memory fragmentation |
| 25 | //! because on destruction ALL allocated memory will be released |
| 26 | //! to the system. |
| 27 | //! |
| 28 | //! This allocator can also be created per each working thread |
| 29 | //! hovewer it real multi-threading performance is dubious. |
| 30 | //! |
| 31 | //! Notice that this also means that existing pointers will be broken |
| 32 | //! and you shoould control that allocator is alive along all objects |
| 33 | //! allocated with him. |
| 34 | class NCollection_WinHeapAllocator : public NCollection_BaseAllocator |
| 35 | { |
| 36 | public: |
| 37 | |
| 38 | //! Main constructor |
| 39 | Standard_EXPORT NCollection_WinHeapAllocator (const size_t theInitSizeBytes = 0x80000); |
| 40 | |
| 41 | //! Destructor |
| 42 | Standard_EXPORT virtual ~NCollection_WinHeapAllocator(); |
| 43 | |
| 44 | //! Allocate memory |
| 79104795 |
45 | Standard_EXPORT virtual void* Allocate (const Standard_Size theSize) Standard_OVERRIDE; |
| 9df7f429 |
46 | |
| 47 | //! Release memory |
| 79104795 |
48 | Standard_EXPORT virtual void Free (void* theAddress) Standard_OVERRIDE; |
| 9df7f429 |
49 | |
| 50 | // Declaration of CASCADE RTTI |
| 92efcf78 |
51 | DEFINE_STANDARD_RTTIEXT(NCollection_WinHeapAllocator,NCollection_BaseAllocator) |
| 9df7f429 |
52 | |
| 53 | private: |
| 54 | //! Copy constructor - prohibited |
| 55 | NCollection_WinHeapAllocator (const NCollection_WinHeapAllocator& ); |
| 56 | |
| 57 | private: |
| 58 | #if(defined(_WIN32) || defined(__WIN32__)) |
| 59 | void* myHeapH; |
| 60 | #endif |
| 61 | Standard_Boolean myToZeroMemory; |
| 62 | |
| 63 | }; |
| 64 | |
| 65 | // Definition of HANDLE object using Standard_DefineHandle.hxx |
| 66 | DEFINE_STANDARD_HANDLE (NCollection_WinHeapAllocator, NCollection_BaseAllocator) |
| 67 | |
| 68 | #endif //NCollection_WinHeapAllocator_HeaderFile |
projects / occt.git / blame