memoryallocator.h

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//
// Created  on 5/26/20.
//

#ifndef KERNOS_MEMORYALLOCATOR_H
#define KERNOS_MEMORYALLOCATOR_H

#include <common.h>

namespace INIT
{
    void pagetables();
}

namespace KM // kernel memory
{
    class MemoryAllocator; // forward declare

    extern MemoryAllocator mem_alloc; // singleton

    void* kmalloc(size_t Size);

    void free(void* Ptr);

    struct [[gnu::aligned(sizeof(uint32_t))]] Header
    {

        Header *m_Next;    
        uint32_t m_Size;   
    };

    class MemoryAllocator
    {
    public:

        uint32_t m_StartAdd = 0; 
        uint32_t m_EndAdd   = 0; 

        Header  m_Base {nullptr, 0};  

        void Initialize(const uint32_t StartAdd, const uint32_t EndAdd);
    };


} // namespace KM, kernel memory

namespace INIT
{
   void KMALLOC();
}

#endif //KERNOS_MEMORYALLOCATOR_H