Program Listing for File HeapManager.h

↰ Return to documentation for file (HeapManager.h)

#pragma once

#include <cstdint>

class FixedSizeAllocator;
struct FSAData;

class HeapManager
{
public:
    static HeapManager* Get();
    static HeapManager* Create(void* i_pMemory, size_t i_bytes, unsigned int i_numDescriptors, FSAData* i_FSAData = nullptr, size_t i_numFSAs = 0);
    void Destroy();

    void* Alloc(size_t i_size);
    void* Alloc(size_t i_size, size_t i_align);
    void Free(void* i_pMemory);
    void Collect();
    bool Contains(void* i_pMemory) const;

    void ShowFreeBlocks() const;
    void ShowOutstandingAllocations() const;

private:
    static uintptr_t sBaseAddressOfHeapManager;

    HeapManager* Initialize(void* i_pMemory, size_t i_bytes, unsigned int i_numDescriptors, const FSAData* i_FSAData, const size_t i_numFSAs);
    FixedSizeAllocator* FindFixedSizeAllocator(size_t i_size);
    static bool IsAddressWithinAvailableMemoryRange(void* i_pMemory, size_t i_bytes, void* i_AddressToCheck);

    uintptr_t pRoot = 0;
    size_t totalSizeOfHeapManager = 0;
    uintptr_t pLinkedListAllocatorBaseAddress = 0;
    size_t sizeOfFixedSizeAllocatorAddressArray = 0;
    uintptr_t* pFixedSizeAllocatorBaseAddressArray = nullptr;

};