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