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// Copyright (C) 2019 Joel Rosdahl and other contributors
//
// See doc/AUTHORS.adoc for a complete list of contributors.
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with
// this program; if not, write to the Free Software Foundation, Inc., 51
// Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#pragma once
#include "system.hpp"
#include "Compression.hpp"
#include <memory>
class Decompressor
{
public:
virtual ~Decompressor() = default;
// Create a decompressor for the specified type.
//
// Parameters:
// - type: The type.
// - stream: The stream to read from.
static std::unique_ptr<Decompressor> create_from_type(Compression::Type type,
FILE* stream);
// Read data into a buffer from the compressed stream.
//
// Parameters:
// - data: Buffer to write decompressed data to.
// - count: How many bytes to write.
//
// Throws Error on failure.
virtual void read(void* data, size_t count) = 0;
// Finalize decompression.
//
// This method checks that the end state of the compressed stream is correct
// and throws Error if not.
virtual void finalize() = 0;
};
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