// 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 _FX_MEMORY | |
#define _FX_MEMORY | |
#include "core/include/fxcrt/fx_memory.h" // For FX_Alloc(). | |
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 |