1ca06b2412
-(mod) cleanup of archive reader code -(add) added new constructor for reader if we only need filter and no format -(add) added initial version of archive writer
108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
/*
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BSD 2-Clause license
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Copyright (c) 2014, Domen Vrankar
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ARCHIVE_READER_HPP_INCLUDED
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#define ARCHIVE_READER_HPP_INCLUDED
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#include <istream>
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#include <memory>
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#include <vector>
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#include <archive.h>
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#include "archive_reader_format.hpp"
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#include "archive_reader_filter.hpp"
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#include "archive_reader_entry.hpp"
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#include "archive_reader_iterator.hpp"
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namespace ns_archive {
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namespace ns_reader {
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ssize_t reader_callback( archive* archive, void* in_reader_container, const void** buff );
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} // ns_reader
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class reader
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{
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public:
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reader(reader&&) = default;
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reader(const reader&) = delete;
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reader& operator=(const reader&) = delete;
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template<ns_reader::format FORMAT>
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static reader make_reader( std::istream& stream, size_t block_size );
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template<ns_reader::format FORMAT, ns_reader::filter FILTER>
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static reader make_reader( std::istream& stream, size_t block_size);
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template<ns_reader::filter FILTER>
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static reader make_reader( std::istream& stream, size_t block_size);
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ns_reader::entry* get_next_entry();
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bool has_next_entry();
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ns_reader::iterator begin();
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ns_reader::iterator end();
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private:
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reader( std::istream& stream, size_t block_size );
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template<ns_reader::format FORMAT>
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void init_format();
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template<ns_reader::filter FILTER>
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void init_filter();
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void init_data();
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std::shared_ptr<archive> _archive;
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ns_reader::entry *_next_entry = nullptr;
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class reader_container
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{
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public:
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reader_container( std::istream& stream, size_t block_size ) :
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_stream( stream )
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{
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_buff.resize( block_size );
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}
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public:
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std::istream& _stream;
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std::vector<char> _buff;
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} _reader_container;
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friend ssize_t ns_reader::reader_callback( archive* archive, void* in_reader_container, const void** buff );
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};
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} // ns_archive
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#include "archive_reader.ipp"
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#endif // ARCHIVE_READER_HPP_INCLUDED
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