103 lines
4.0 KiB
C++
103 lines
4.0 KiB
C++
/*
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Copyright <2018-2022> <scott.e.graves@protonmail.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
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associated documentation files (the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge, publish, distribute,
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sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or
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substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
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OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef INCLUDE_DOWNLOAD_DOWNLOAD_MANAGER_HPP_
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#define INCLUDE_DOWNLOAD_DOWNLOAD_MANAGER_HPP_
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#include "common.hpp"
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#include "download/i_download.hpp"
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#include "download/i_download_manager.hpp"
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#include "events/event_system.hpp"
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namespace repertory {
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class app_config;
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class download_end;
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class filesystem_item_handle_closed;
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class i_open_file_table;
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class download_manager final : public virtual i_download_manager {
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E_CONSUMER();
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public:
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download_manager(const app_config &config, api_reader_callback api_reader,
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const bool &force_download = false);
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~download_manager() override;
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private:
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const app_config &config_;
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const api_reader_callback api_reader_;
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bool force_download_;
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i_open_file_table *oft_ = nullptr;
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mutable std::recursive_mutex download_mutex_;
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std::unordered_map<std::string, std::unordered_map<std::uint64_t, download_ptr>> download_lookup_;
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std::recursive_mutex start_stop_mutex_;
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bool stop_requested_ = true;
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std::unique_ptr<rocksdb::DB> restore_db_;
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private:
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bool contains_handle(const std::string &api_path, const std::uint64_t &handle) const;
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download_ptr get_download(std::uint64_t handle, filesystem_item &fsi,
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const bool &write_Supported);
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void handle_download_end(const download_end &de);
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void on_handle_closed(const filesystem_item_handle_closed &handle_closed);
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void reset_timeout(const std::string &api_path, const bool &file_closed);
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void start_incomplete();
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public:
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api_error allocate(const std::uint64_t &handle, filesystem_item &fsi, const std::uint64_t &size,
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const i_download::allocator_callback &allocator) override;
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bool contains_restore(const std::string &api_path) const override;
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api_error download_file(const std::uint64_t &handle, filesystem_item &fsi) override;
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std::size_t get_download_count() const { return download_lookup_.size(); }
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std::string get_source_path(const std::string &api_path) const;
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bool is_processing(const std::string &api_path) const override;
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bool pause_download(const std::string &api_path) override;
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api_error read_bytes(const std::uint64_t &handle, filesystem_item &fsi, std::size_t read_size,
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const std::uint64_t &read_offset, std::vector<char> &data) override;
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void rename_download(const std::string &from_api_path, const std::string &to_api_path) override;
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api_error resize(const std::uint64_t &handle, filesystem_item &fsi,
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const std::uint64_t &size) override;
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void resume_download(const std::string &api_path) override;
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void start(i_open_file_table *oft);
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void stop();
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api_error write_bytes(const std::uint64_t &handle, filesystem_item &fsi,
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const std::uint64_t &write_offset, std::vector<char> data,
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std::size_t &bytes_written) override;
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};
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} // namespace repertory
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#endif // INCLUDE_DOWNLOAD_DOWNLOAD_MANAGER_HPP_
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