Tianjie Xu | 6528812 | 2017-10-13 15:10:58 -0700 | [diff] [blame] | 1 | // Copyright 2017 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef _BSDIFF_DECOMPRESSOR_INTERFACE_H_ |
| 6 | #define _BSDIFF_DECOMPRESSOR_INTERFACE_H_ |
| 7 | |
| 8 | #include <stddef.h> |
| 9 | #include <stdint.h> |
| 10 | |
Tianjie Xu | 4d10c3e | 2017-10-26 14:02:06 -0700 | [diff] [blame] | 11 | #include <memory> |
| 12 | |
| 13 | #include "bsdiff/constants.h" |
| 14 | |
Tianjie Xu | 6528812 | 2017-10-13 15:10:58 -0700 | [diff] [blame] | 15 | namespace bsdiff { |
| 16 | |
| 17 | class DecompressorInterface { |
| 18 | public: |
| 19 | virtual ~DecompressorInterface() {} |
| 20 | |
| 21 | // Set the buffer starting from |input_data| with length |size| as the input |
| 22 | // compressed stream. This buffer is owned by the caller and should stay |
| 23 | // valid until the Close() function is called. |
| 24 | virtual bool SetInputData(const uint8_t* input_data, size_t size) = 0; |
| 25 | |
| 26 | // Decompress the stream and output |bytes_to_output| bytes of data to |
| 27 | // |output_data|. Returns false if not all bytes_to_output can be |
| 28 | // decompressed from the stream due to a decompressor error or EOF. |
| 29 | virtual bool Read(uint8_t* output_data, size_t bytes_to_output) = 0; |
| 30 | |
| 31 | // Close the decompression stream. |
| 32 | virtual bool Close() = 0; |
| 33 | }; |
| 34 | |
Tianjie Xu | 4d10c3e | 2017-10-26 14:02:06 -0700 | [diff] [blame] | 35 | std::unique_ptr<DecompressorInterface> CreateDecompressor(CompressorType type); |
| 36 | |
Tianjie Xu | 6528812 | 2017-10-13 15:10:58 -0700 | [diff] [blame] | 37 | } // namespace bsdiff |
| 38 | #endif // _BSDIFF_DECOMPRESSOR_INTERFACE_H_ |