#pragma once
#include "paging.h"
#include "stdarg.h"

/* Pure Virtual Memory Allocation */

// areaAlloc map vmem to phy pages
#define AREA_PHY_MAP (1<<0)
#define AREA_MEM_TOP  PAGING_MIRROR_VADDR

struct memArea {
    vaddr_t startAddr;
    uint nbPages;

    struct memArea *next;
    struct memArea *prev;
};

void areaInit(vaddr_t firstMemUsed, vaddr_t lastUsed, vaddr_t stack_bottom, vaddr_t stack_top);
vaddr_t areaAlloc(unsigned int nbPages, uint32_t flags);
// Remove an area from the free ones but do not add it into used ones.
// This area should be latter added woth areaAdd.
// Used by malloc to avoid recursivity issue
vaddr_t areaBook(unsigned int nbPages, uint32_t flags);
int areaFree(vaddr_t addr);
int areaAdd(vaddr_t begin, vaddr_t end, int isFree);