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https://github.com/mhx/dwarfs.git
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65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/* vim:set ts=2 sw=2 sts=2 et: */
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/**
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* \author Marcus Holland-Moritz (github@mhxnet.de)
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* \copyright Copyright (c) Marcus Holland-Moritz
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*
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* This file is part of dwarfs.
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*
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* dwarfs 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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* dwarfs 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 dwarfs. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <chrono>
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#include <cstdint>
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#include <memory>
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#include <vector>
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namespace dwarfs {
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class byte_buffer_factory;
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class logger;
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class mmif;
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namespace internal {
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class fs_section;
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}
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namespace reader::internal {
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class cached_block {
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public:
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static std::unique_ptr<cached_block>
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create(logger& lgr, dwarfs::internal::fs_section const& b,
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std::shared_ptr<mmif> mm, byte_buffer_factory const& bbf, bool release,
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bool disable_integrity_check);
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virtual ~cached_block() = default;
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virtual size_t range_end() const = 0;
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virtual uint8_t const* data() const = 0;
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virtual void decompress_until(size_t end) = 0;
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virtual size_t uncompressed_size() const = 0;
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virtual void touch() = 0;
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virtual bool
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last_used_before(std::chrono::steady_clock::time_point tp) const = 0;
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virtual bool any_pages_swapped_out(std::vector<uint8_t>& tmp) const = 0;
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};
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} // namespace reader::internal
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} // namespace dwarfs
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