|  | // | 
|  | // Copyright (C) 2021 The Android Open Source Project | 
|  | // | 
|  | // Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | // you may not use this file except in compliance with the License. | 
|  | // You may obtain a copy of the License at | 
|  | // | 
|  | //      http://www.apache.org/licenses/LICENSE-2.0 | 
|  | // | 
|  | // Unless required by applicable law or agreed to in writing, software | 
|  | // distributed under the License is distributed on an "AS IS" BASIS, | 
|  | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | // See the License for the specific language governing permissions and | 
|  | // limitations under the License. | 
|  | // | 
|  |  | 
|  | #ifndef UPDATE_ENGINE_LZ4DIFF_LZ4DIFF_H_ | 
|  | #define UPDATE_ENGINE_LZ4DIFF_LZ4DIFF_H_ | 
|  |  | 
|  | #include <vector> | 
|  | #include <string_view> | 
|  |  | 
|  | #include "lz4diff/lz4diff.pb.h" | 
|  | #include "update_engine/lz4diff/lz4diff_format.h" | 
|  | #include "update_engine/update_metadata.pb.h" | 
|  |  | 
|  | namespace chromeos_update_engine { | 
|  |  | 
|  | bool Lz4Diff(std::string_view src, | 
|  | std::string_view dst, | 
|  | const CompressedFile& src_file_info, | 
|  | const CompressedFile& dst_file_info, | 
|  | Blob* output, | 
|  | InstallOperation::Type* op_type = nullptr) noexcept; | 
|  |  | 
|  | bool Lz4Diff(const Blob& src, | 
|  | const Blob& dst, | 
|  | const CompressedFile& src_file_info, | 
|  | const CompressedFile& dst_file_info, | 
|  | Blob* output, | 
|  | InstallOperation::Type* op_type = nullptr) noexcept; | 
|  |  | 
|  | }  // namespace chromeos_update_engine | 
|  |  | 
|  | #endif |