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66 lines
2.2 KiB
C++
66 lines
2.2 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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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the “Software”), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* 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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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <dwarfs/mapped_byte_buffer.h>
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namespace dwarfs {
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namespace {
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class mapped_byte_buffer_impl : public byte_buffer_interface {
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public:
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mapped_byte_buffer_impl(std::span<uint8_t const> data,
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std::shared_ptr<mmif const> mm)
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: data_{data}
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, mm_{std::move(mm)} {}
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size_t size() const override { return data_.size(); }
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size_t capacity() const override { return data_.size(); }
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uint8_t const* data() const override { return data_.data(); }
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std::span<uint8_t const> span() const override {
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return {data_.data(), data_.size()};
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}
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private:
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std::span<uint8_t const> data_;
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std::shared_ptr<mmif const> mm_;
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};
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} // namespace
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shared_byte_buffer mapped_byte_buffer::create(std::span<uint8_t const> data,
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std::shared_ptr<mmif const> mm) {
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return shared_byte_buffer{
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std::make_shared<mapped_byte_buffer_impl>(data, std::move(mm))};
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}
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} // namespace dwarfs
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