// PageTable class
//   this class models a page table for implementing virtual memory
///////////////////////////////////////////////////////////////////////////////////////

#ifndef _PAGE_TABLE_
#define _PAGE_TABLE_

#include <vector>
using namespace std;

class PageTable
{
public:
    PageTable(int log, int phys);
    bool AccessPage(int pageNum);
    int LocatePage(int pageNum);
    void StorePage(int pageNum);
    void ReplacePage(int pageNum, int swapPage);
    int SelectSwapPage();
    bool FreeFramesRemaining();
private:
    int currentTime;
    vector<int> pageMap;
    vector<bool> valid;
    vector<int> timeStamp;
    vector<int> freeFrames;
};

#endif