tdesktop/Telegram/SourceFiles/media/streaming/media_streaming_loader_mtpr...

86 lines
2.1 KiB
C++

/*
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 "media/streaming/media_streaming_loader.h"
#include "mtproto/sender.h"
#include "data/data_file_origin.h"
namespace Storage {
class DownloadManager;
} // namespace Storage
namespace Media {
namespace Streaming {
class LoaderMtproto : public Loader, public base::has_weak_ptr {
public:
LoaderMtproto(
not_null<Storage::DownloadManager*> owner,
const StorageFileLocation &location,
int size,
Data::FileOrigin origin);
~LoaderMtproto();
[[nodiscard]] auto baseCacheKey() const
-> std::optional<Storage::Cache::Key> override;
[[nodiscard]] int size() const override;
void load(int offset) override;
void cancel(int offset) override;
void increasePriority() override;
void stop() override;
// Parts will be sent from the main thread.
[[nodiscard]] rpl::producer<LoadedPart> parts() const override;
void attachDownloader(
not_null<Storage::StreamedFileDownloader*> downloader) override;
void clearAttachedDownloader() override;
private:
void sendNext();
void requestDone(int offset, const MTPupload_File &result);
void requestFailed(
int offset,
const RPCError &error,
const QByteArray &usedFileReference);
void changeCdnParams(
int offset,
MTP::DcId dcId,
const QByteArray &token,
const QByteArray &encryptionKey,
const QByteArray &encryptionIV,
const QVector<MTPFileHash> &hashes);
void cancelForOffset(int offset);
void changeRequestedAmount(int index, int amount);
const not_null<Storage::DownloadManager*> _owner;
// _location can be changed with an updated file_reference.
StorageFileLocation _location;
MTP::DcId _dcId = 0;
const int _size = 0;
const Data::FileOrigin _origin;
MTP::Sender _api;
PriorityQueue _requested;
base::flat_map<int, mtpRequestId> _requests;
base::flat_map<int, int> _amountByDcIndex;
rpl::event_stream<LoadedPart> _parts;
Storage::StreamedFileDownloader *_downloader = nullptr;
};
} // namespace Streaming
} // namespace Media