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// 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 <memory>
#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_system.h"
enum FX_ALLOCTYPE {
FX_ALLOCTYPE_Static,
FX_ALLOCTYPE_Fixed,
};
class IFX_MemoryAllocator {
public:
virtual ~IFX_MemoryAllocator() {}
virtual void* Alloc(size_t size) = 0;
virtual void Free(void* pBlock) = 0;
static std::unique_ptr<IFX_MemoryAllocator> Create(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_MemoryAllocator* pAllocator) {
return pAllocator->Alloc(size);
}
void operator delete(void* p, IFX_MemoryAllocator* 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_
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