MemoryManager.h

#pragma once
#pragma warning( disable : 4290 )

#include
#include "MemoryExceptions.h"

namespace ManagedMemory
{
struct MemBlock
{
void *_pointer;
size_t _size;

MemBlock(void *pointer, size_t size):
_pointer(pointer), _size(size)
{}

bool operator< (const MemBlock& b) const
{
return
reinterpret_cast(_pointer) <
reinterpret_cast(b._pointer);
}
};

/**
Interfaccia per gestore di memoria
*/
class MemoryManager
{
public:
virtual void *alloc(size_t amount) throw(MemoryAllocationException) = 0;
virtual void free(void *p) throw(NotOwnedMemoryException) = 0;
};

class MemoryManagerImpl: public MemoryManager
{
void *_heap;
size_t _heapSize;

std::list _usedBlocks;
std::list _freeBlocks;

protected:
void defrag();

public:
MemoryManagerImpl(void *p, size_t heapSize);
virtual ~MemoryManagerImpl(void);

virtual void *alloc(size_t amount) throw(MemoryAllocationException);
virtual void free(void *p) throw(NotOwnedMemoryException, DeallocOnNotAllocatedMemory);

};
};