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53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
//
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// PCMPatchedTrack.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 15/12/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#ifndef PCMPatchedTrack_hpp
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#define PCMPatchedTrack_hpp
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#include "PCMTrack.hpp"
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namespace Storage {
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namespace Disk {
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/*!
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A subclass of @c Track that patches an existing track with PCM segments.
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*/
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class PCMPatchedTrack: public Track {
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public:
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/*!
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Constructs a @c PCMPatchedTrack that will return events from @c underlying_track in
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regions where it has not had alternative PCM data installed.
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*/
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PCMPatchedTrack(std::shared_ptr<Track> underlying_track);
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/*!
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Replaces whatever is currently on the track from @c start_position to @c start_position + segment length
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with the contents of @c segment.
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*/
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void add_segment(const Time &start_position, const PCMSegment &segment);
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// To satisfy Storage::Disk::Track
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Event get_next_event();
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Time seek_to(const Time &time_since_index_hole);
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private:
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std::shared_ptr<Track> underlying_track_;
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struct Patch {
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Time start_position;
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PCMSegment segment;
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Patch(const Time &start_position, const PCMSegment &segment) : start_position(start_position), segment(segment) {}
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};
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std::vector<Patch> patches_;
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size_t active_patch_;
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};
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}
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}
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#endif /* PCMPatchedTrack_hpp */
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