tdesktop/Telegram/SourceFiles/storage/streamed_file_downloader.h

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "storage/file_download.h"
#include "storage/cache/storage_cache_types.h"
namespace Media {
namespace Streaming {
class Reader;
struct LoadedPart;
} // namespace Streaming
} // namespace Media
namespace Storage {
class StreamedFileDownloader final : public FileLoader {
public:
StreamedFileDownloader(
uint64 objectId,
MTP::DcId dcId,
Data::FileOrigin origin,
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Cache::Key cacheKey,
MediaKey fileLocationKey,
std::shared_ptr<Media::Streaming::Reader> reader,
// For FileLoader
const QString &toFile,
int32 size,
LocationType locationType,
LoadToCacheSetting toCache,
LoadFromCloudSetting fromCloud,
bool autoLoading,
uint8 cacheTag);
~StreamedFileDownloader();
uint64 objId() const override;
Data::FileOrigin fileOrigin() const override;
void stop() override;
QByteArray readLoadedPart(int offset);
private:
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Cache::Key cacheKey() const override;
std::optional<MediaKey> fileLocationKey() const override;
void cancelRequests() override;
bool loadPart() override;
void savePart(const Media::Streaming::LoadedPart &part);
uint64 _objectId = 0;
Data::FileOrigin _origin;
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Cache::Key _cacheKey;
MediaKey _fileLocationKey;
std::shared_ptr<Media::Streaming::Reader> _reader;
std::vector<bool> _partIsSaved; // vector<bool> :D
int _nextPartIndex = 0;
int _partsCount = 0;
int _partsRequested = 0;
int _partsSaved = 0;
rpl::lifetime _lifetime;
};
} // namespace Storage