LibDmem.hpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------

#ifndef LIB_DMEM_HPP_
#define LIB_DMEM_HPP_

#include <stddef.h>
#include "LibMacros.hpp"

class LibDmem {
public:
    LibDmem(void* buffer, size_t size);
    ~LibDmem();

    void* alloc(size_t size);
    void free(void* p);
    void* resize(void* p, size_t size);
    void* resizeLeft(void* p, size_t left);
    size_t getTotalMemory();
    size_t getFreeMemory();
    unsigned int getBlockCount();
private:
    typedef struct tagSEGMENT {
        tagSEGMENT *prev;
        tagSEGMENT *next;
        size_t size;
        uint8_t data[1024];//Size is given for debugger only
    } SEGMENT;

    static const int SIZE_OF_CTRL = 12;

    SEGMENT* mBeginning;
    size_t mFree;
    size_t mTotalSize;
    unsigned int mBlockCount;
};

#endif /* LIB_DMEM_HPP_ */