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294e09f275
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
56 lines
1.1 KiB
C++
56 lines
1.1 KiB
C++
//
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// DMK.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 08/01/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#ifndef DMK_hpp
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#define DMK_hpp
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#include "../DiskImage.hpp"
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#include "../../../FileHolder.hpp"
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#include <string>
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namespace Storage {
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namespace Disk {
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/*!
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Provides a @c DiskImage containing a DMK disk image: mostly a decoded byte stream, but with
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a record of IDAM locations.
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*/
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class DMK: public DiskImage {
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public:
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/*!
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Construct a @c DMK containing content from the file with name @c file_name.
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@throws Error::InvalidFormat if this file doesn't appear to be a DMK.
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*/
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DMK(const std::string &file_name);
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// implemented to satisfy @c Disk
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HeadPosition get_maximum_head_position() final;
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int get_head_count() final;
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bool get_is_read_only() final;
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std::shared_ptr<::Storage::Disk::Track> get_track_at_position(::Storage::Disk::Track::Address address) final;
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private:
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FileHolder file_;
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long get_file_offset_for_position(Track::Address address);
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bool is_read_only_;
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int head_position_count_;
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int head_count_;
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long track_length_;
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bool is_purely_single_density_;
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};
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}
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}
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#endif /* DMK_hpp */
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