MallocAnsi.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "HAL/MemoryBase.h"
#include "HAL/UnrealMemory.h"
 
void* AnsiMalloc(SIZE_T Size, uint32 Alignment);
void* AnsiRealloc(void* Ptr, SIZE_T NewSize, uint32 Alignment);
void AnsiFree(void* Ptr);
 
//
// ANSI C memory allocator.
//
class FMallocAnsi final
    : public FMalloc
{
 
public:
    /**
     * Constructor enabling low fragmentation heap on platforms supporting it.
     */
    FMallocAnsi();
 
    // FMalloc interface.
    virtual void* Malloc( SIZE_T Size, uint32 Alignment ) override;
 
    virtual void* TryMalloc(SIZE_T Size, uint32 Alignment) override;
 
    virtual void* Realloc( void* Ptr, SIZE_T NewSize, uint32 Alignment ) override;
 
    virtual void* TryRealloc(void* Ptr, SIZE_T NewSize, uint32 Alignment) override;
 
    virtual void Free( void* Ptr ) override;
 
    virtual bool GetAllocationSize(void *Original, SIZE_T &SizeOut) override;
 
    /**
     * Returns if the allocator is guaranteed to be thread-safe and therefore
     * doesn't need a unnecessary thread-safety wrapper around it.
     *
     * @return true as we're using system allocator
     */
    virtual bool IsInternallyThreadSafe() const override;
 
    /**
     * Validates the allocator's heap
     */
    virtual bool ValidateHeap() override;
 
    virtual const TCHAR* GetDescriptiveName() override { return TEXT("ANSI"); }
};