| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef XFA_FGAS_CRT_FGAS_MEMORY_H_ |
| #define XFA_FGAS_CRT_FGAS_MEMORY_H_ |
| |
| #include "core/include/fxcrt/fx_memory.h" |
| #include "core/include/fxcrt/fx_system.h" |
| |
| class IFX_MEMAllocator; |
| class CFX_Target; |
| enum FX_ALLOCTYPE { |
| FX_ALLOCTYPE_Default = 0, |
| FX_ALLOCTYPE_Static, |
| FX_ALLOCTYPE_Fixed, |
| FX_ALLOCTYPE_Dynamic, |
| }; |
| |
| class IFX_MEMAllocator { |
| public: |
| virtual ~IFX_MEMAllocator() {} |
| virtual void Release() = 0; |
| virtual void* Alloc(size_t size) = 0; |
| virtual void Free(void* pBlock) = 0; |
| virtual size_t GetBlockSize() const = 0; |
| virtual size_t GetDefChunkSize() const = 0; |
| virtual size_t SetDefChunkSize(size_t size) = 0; |
| virtual size_t GetCurrentDataSize() const = 0; |
| }; |
| |
| IFX_MEMAllocator* FX_CreateAllocator(FX_ALLOCTYPE eType, |
| size_t chunkSize, |
| size_t blockSize); |
| class CFX_Target { |
| public: |
| virtual ~CFX_Target() {} |
| void* operator new(size_t size) { return FX_Alloc(uint8_t, size); } |
| void operator delete(void* p) { FX_Free(p); } |
| void* operator new(size_t size, IFX_MEMAllocator* pAllocator) { |
| return pAllocator->Alloc(size); |
| } |
| void operator delete(void* p, IFX_MEMAllocator* pAllocator) { |
| pAllocator->Free(p); |
| } |
| void* operator new(size_t size, void* place) { return place; } |
| void operator delete(void* p, void* place) {} |
| }; |
| |
| #define FXTARGET_NewWith(__allocator__) new (__allocator__) |
| #define FXTARGET_DeleteWith(__class__, __allocator__, pointer) \ |
| { \ |
| (pointer)->~__class__(); \ |
| (pointer)->operator delete((pointer), (__allocator__)); \ |
| } |
| |
| #endif // XFA_FGAS_CRT_FGAS_MEMORY_H_ |