75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2024
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/telegram/files/FileLocation.h"
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#include "td/actor/actor.h"
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#include "td/utils/common.h"
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#include "td/utils/Promise.h"
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#include "td/utils/Status.h"
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#include <map>
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namespace td {
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class FileGenerateActor;
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class FileGenerateCallback {
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public:
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FileGenerateCallback() = default;
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FileGenerateCallback(const FileGenerateCallback &) = delete;
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FileGenerateCallback &operator=(const FileGenerateCallback &) = delete;
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virtual ~FileGenerateCallback() = default;
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virtual void on_partial_generate(PartialLocalFileLocation partial_local, int64 expected_size) = 0;
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virtual void on_ok(FullLocalFileLocation local) = 0;
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virtual void on_error(Status error) = 0;
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};
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class FileGenerateManager final : public Actor {
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public:
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using QueryId = uint64;
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explicit FileGenerateManager(ActorShared<> parent) : parent_(std::move(parent)) {
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}
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void generate_file(QueryId query_id, FullGenerateFileLocation generate_location,
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const LocalFileLocation &local_location, string name, unique_ptr<FileGenerateCallback> callback);
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void cancel(QueryId query_id);
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// external updates about file generation state
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void external_file_generate_write_part(QueryId query_id, int64 offset, string data, Promise<> promise);
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void external_file_generate_progress(QueryId query_id, int64 expected_size, int64 local_prefix_size,
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Promise<> promise);
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void external_file_generate_finish(QueryId query_id, Status status, Promise<> promise);
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private:
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struct Query {
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Query() = default;
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Query(const Query &) = delete;
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Query &operator=(const Query &) = delete;
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Query(Query &&other) noexcept;
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Query &operator=(Query &&other) noexcept;
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~Query();
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ActorOwn<FileGenerateActor> worker_;
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};
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ActorShared<> parent_;
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std::map<QueryId, Query> query_id_to_query_;
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bool close_flag_ = false;
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void hangup() final;
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void hangup_shared() final;
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void loop() final;
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void do_cancel(QueryId query_id);
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};
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} // namespace td
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