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CLK/Storage/Disk/Drive.hpp

80 lines
1.6 KiB
C++

//
// Drive.hpp
// Clock Signal
//
// Created by Thomas Harte on 25/09/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef Drive_hpp
#define Drive_hpp
#include <memory>
#include "Disk.hpp"
namespace Storage {
namespace Disk {
class Drive {
public:
Drive();
/*!
Replaces whatever is in the drive with @c disk.
*/
void set_disk(const std::shared_ptr<Disk> &disk);
/*!
Replaces whatever is in the drive with a disk that contains endless copies of @c track.
*/
void set_disk_with_track(const std::shared_ptr<Track> &track);
/*!
@returns @c true if a disk is currently inserted; @c false otherwise.
*/
bool has_disk();
/*!
@returns @c true if the drive head is currently at track zero; @c false otherwise.
*/
bool get_is_track_zero();
/*!
Steps the disk head the specified number of tracks. Positive numbers step inwards (i.e. away from track 0),
negative numbers step outwards (i.e. towards track 0).
*/
void step(int direction);
/*!
Sets the current read head.
*/
void set_head(unsigned int head);
/*!
@returns @c true if the inserted disk is read-only; @c false otherwise.
*/
bool get_is_read_only();
/*!
@returns the track underneath the current head at the location now stepped to.
*/
std::shared_ptr<Track> get_track();
/*!
Attempts to set @c track as the track underneath the current head at the location now stepped to.
*/
void set_track(const std::shared_ptr<Track> &track);
private:
std::shared_ptr<Track> track_;
std::shared_ptr<Disk> disk_;
int head_position_;
unsigned int head_;
};
}
}
#endif /* Drive_hpp */