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#ifndef DRAM_H
#define DRAM_H
#include "definitions.h"
#include "storage.h"
#include <functional>
#include <ostream>
class Dram : public Storage
{
public:
/**
* Constructor.
* @param The number of clock cycles each access takes.
* @return A new memory object.
*/
Dram(int delay);
~Dram();
int
write_word(void *, signed int, int) override;
int
write_line(void *, std::array<signed int, LINE_SIZE>, int) override;
int
read_word(void *, int, signed int &) override;
int
read_line(void *, int, std::array<signed int, LINE_SIZE> &) override;
/**
* TODO This will accept a file at a later date.
*/
void
load(std::vector<signed int> program);
private:
/**
* Helper for all access methods.
* Calls `request_handler` when `id` is allowed to complete its
* request cycle.
* @param the source making the request
* @param the address to write to
* @param the function to call when an access should be completed
* @return 1 if the access completed successfully, 0 otherwise
*/
int
process(void *id, int address, std::function<void(int line, int word)> request_handler);
/**
* Returns OK if `id` is allowed to complete its request this cycle.
* Handles wait times, side door, and setting the current id this
* storage is serving.
* @param the source making the request
* @return 1 if the access can be completed this function call, 0 otherwise
*/
int
is_access_cleared(void *id);
};
#endif /* DRAM_H_INCLUDED */
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