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#ifndef DYNAMIC_HEAP_ALLOCATOR_H_
#define DYNAMIC_HEAP_ALLOCATOR_H_
#if ENABLE_MEMORY_MANAGER
#include "BaseAllocator.h"
#include "Runtime/Threads/Mutex.h"
#include "Runtime/Allocator/LowLevelDefaultAllocator.h"
#include "Runtime/Utilities/LinkedList.h"
template<class LLAllocator>
class DynamicHeapAllocator : public BaseAllocator
{
public:
DynamicHeapAllocator( UInt32 poolIncrementSize, size_t splitLimit, bool useLocking, const char* name);
~DynamicHeapAllocator();
virtual void* Allocate (size_t size, int align);
virtual void* Reallocate (void* p, size_t size, int align);
virtual void Deallocate (void* p);
virtual bool Contains (const void* p);
virtual bool CheckIntegrity();
virtual bool ValidatePointer(void* ptr);
virtual size_t GetPtrSize(const void* ptr) const;
virtual ProfilerAllocationHeader* GetProfilerHeader(const void* ptr) const;
// return the free block count for each pow2
virtual void GetFreeBlockCount(int* freeCount, int size);
// return the used block count for each pow2
virtual void GetUsedBlockCount(int* usedCount, int size);
private:
struct PoolElement : public ListElement
{
bool Contains(const void* ptr) const
{
return ptr >= memoryBase && ptr < memoryBase + memorySize;
}
void* tlsfPool;
char* memoryBase;
UInt32 memorySize;
UInt32 allocationCount;
UInt32 allocationSize;
};
typedef List<PoolElement> PoolList;
size_t m_SplitLimit;
PoolElement& GetActivePool(size_t size);
PoolList& GetPoolList(size_t size);
PoolList m_SmallTLSFPools;
PoolList m_LargeTLSFPools;
Mutex m_DHAMutex;
bool m_UseLocking;
size_t m_RequestedPoolSize;
struct LargeAllocations
{
LargeAllocations* next;
char* allocation;
void* returnedPtr;
size_t size;
};
LargeAllocations* m_FirstLargeAllocation;
PoolElement* FindPoolFromPtr(const void* ptr);
void RegisterAllocation(const void* p);
void RegisterDeallocation(const void* p);
void* AddHeaderAndFooter( void* ptr, size_t size, int align ) const;
};
#endif
#endif
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