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// Copyright 2017 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef _BSDIFF_DECOMPRESSOR_INTERFACE_H_
#define _BSDIFF_DECOMPRESSOR_INTERFACE_H_
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "bsdiff/constants.h"
namespace bsdiff {
class DecompressorInterface {
public:
virtual ~DecompressorInterface() {}
// Set the buffer starting from |input_data| with length |size| as the input
// compressed stream. This buffer is owned by the caller and should stay
// valid until the Close() function is called.
virtual bool SetInputData(const uint8_t* input_data, size_t size) = 0;
// Decompress the stream and output |bytes_to_output| bytes of data to
// |output_data|. Returns false if not all bytes_to_output can be
// decompressed from the stream due to a decompressor error or EOF.
virtual bool Read(uint8_t* output_data, size_t bytes_to_output) = 0;
// Close the decompression stream.
virtual bool Close() = 0;
};
std::unique_ptr<DecompressorInterface> CreateDecompressor(CompressorType type);
} // namespace bsdiff
#endif // _BSDIFF_DECOMPRESSOR_INTERFACE_H_
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