1 /* 2 * Copyright (C) 2024 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 #pragma once 18 #include <memory> 19 #include <string_view> 20 21 namespace simpleperf { 22 23 class Compressor { 24 public: 25 virtual ~Compressor(); 26 27 virtual bool AddInputData(const char* data, size_t size) = 0; 28 virtual bool FlushOutputData() = 0; 29 virtual std::string_view GetOutputData() = 0; 30 virtual void ConsumeOutputData(size_t size) = 0; 31 TotalInputSize()32 uint64_t TotalInputSize() const { return total_input_size_; } TotalOutputSize()33 uint64_t TotalOutputSize() const { return total_output_size_; } 34 35 protected: 36 uint64_t total_input_size_ = 0; 37 uint64_t total_output_size_ = 0; 38 }; 39 40 class Decompressor { 41 public: 42 virtual ~Decompressor(); 43 44 virtual bool AddInputData(const char* data, size_t size) = 0; 45 virtual std::string_view GetOutputData() = 0; 46 virtual void ConsumeOutputData(size_t size) = 0; 47 HasOutputData()48 bool HasOutputData() { return !GetOutputData().empty(); } 49 }; 50 51 std::unique_ptr<Compressor> CreateZstdCompressor(size_t compression_level = 3); 52 std::unique_ptr<Decompressor> CreateZstdDecompressor(); 53 54 bool ZstdCompress(const char* input_data, size_t input_size, std::string& output_data); 55 bool ZstdDecompress(const char* input_data, size_t input_size, std::string& output_data); 56 57 } // namespace simpleperf 58