1 // 2 // Copyright (C) 2021 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef UPDATE_ENGINE_LZ4DIFF_LZ4PATCH_H_ 18 #define UPDATE_ENGINE_LZ4DIFF_LZ4PATCH_H_ 19 20 #include "lz4diff/lz4diff_compress.h" 21 #include "lz4diff_format.h" 22 23 namespace chromeos_update_engine { 24 25 bool Lz4Patch(std::string_view src_data, 26 std::string_view patch_data, 27 const SinkFunc& sink); 28 29 bool Lz4Patch(std::string_view src_data, 30 std::string_view patch_data, 31 Blob* output); 32 bool Lz4Patch(const Blob& src_data, const Blob& patch_data, Blob* output); 33 34 std::ostream& operator<<(std::ostream& out, const CompressionAlgorithm& info); 35 36 std::ostream& operator<<(std::ostream& out, const Lz4diffHeader&); 37 38 template <typename T> 39 std::ostream& operator<<(std::ostream& out, 40 const google::protobuf::RepeatedPtrField<T>& arr) { 41 if (arr.empty()) { 42 out << "[]"; 43 return out; 44 } 45 out << "["; 46 auto begin = arr.begin(); 47 out << *begin; 48 ++begin; 49 for (; begin != arr.end(); ++begin) { 50 out << ", " << *begin; 51 } 52 out << "]"; 53 54 return out; 55 } 56 57 } // namespace chromeos_update_engine 58 59 #endif 60