82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/*
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* Copyright (C) 2023 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <cstddef>
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#include <memory>
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#include "core/IZipper.hpp"
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extern "C"
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{
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struct archive;
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struct archive_entry;
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}
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namespace lms::zip
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{
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class ArchiveZipper : public IZipper
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{
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public:
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ArchiveZipper(const EntryContainer& entries);
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~ArchiveZipper() = default;
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ArchiveZipper(const ArchiveZipper&) = delete;
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ArchiveZipper& operator=(const ArchiveZipper&) = delete;
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private:
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std::uint64_t writeSome(std::ostream& output) override;
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bool isComplete() const override;
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void abort() override;
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class ArchiveDeleter
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{
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public:
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void operator()(struct ::archive* arch);
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};
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using ArchivePtr = std::unique_ptr<struct ::archive, ArchiveDeleter>;
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class ArchiveEntryDeleter
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{
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public:
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void operator()(struct ::archive_entry* archEntry);
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};
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using ArchiveEntryPtr = std::unique_ptr<struct ::archive_entry, ArchiveEntryDeleter>;
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void prepareCurrentEntry();
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static ArchiveEntryPtr createArchiveEntry(const Entry& entry);
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bool writeSomeCurrentFileData();
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std::int64_t onWriteCallback(const std::byte* buff, std::size_t size);
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const EntryContainer _entries;
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ArchivePtr _archive;
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static inline constexpr std::size_t _writeBlockSize{ 65536 };
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static inline constexpr std::size_t _readBufferSize{ 65536 };
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std::vector<std::byte> _readBuffer;
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EntryContainer::const_iterator _currentEntry;
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ArchiveEntryPtr _currentArchiveEntry;
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std::uint64_t _currentEntryOffset{};
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std::ostream* _currentOutputStream{};
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std::uint64_t _bytesWrittenInCurrentOutputStream{};
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};
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} // namespace lms::zip
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