1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef TRANCE_FILE_WRITER_H 16 #define TRANCE_FILE_WRITER_H 17 18 #include <cstdint> 19 #include <fstream> 20 #include <google/protobuf/message_lite.h> 21 #include <mutex> 22 #include <queue> 23 #include <string> 24 25 #include "logging.h" 26 #include "nocopyable.h" 27 #include "trace_file_helper.h" 28 #include "writer.h" 29 30 using google::protobuf::MessageLite; 31 32 class TraceFileWriter : public Writer { 33 public: 34 explicit TraceFileWriter(const std::string& path); 35 36 explicit TraceFileWriter(const std::string& path, bool splitFile, uint32_t splitFileMaxSizeMb, 37 uint32_t splitFileMaxNum); 38 39 ~TraceFileWriter(); 40 41 std::string Path() const; 42 43 bool SetPluginConfig(const void* data, size_t size); 44 45 bool WriteHeader(); 46 47 long Write(const MessageLite& message); 48 49 long Write(const void* data, size_t size) override; 50 51 bool Flush() override; 52 53 bool Finish(); 54 55 bool IsSplitFile(uint32_t size); 56 57 void SetStopSplitFile(bool isStop); 58 59 private: 60 void SetTimeStamp(); 61 62 void LogDiskUsage(); 63 64 void DeleteOldSplitFile(); 65 66 bool FlushStream(); 67 68 private: 69 std::string path_ {}; 70 std::string oldPath_ {}; 71 std::ofstream stream_ {}; 72 uint64_t writeBytes_ = 0; 73 uint64_t writeCount_ = 0; 74 TraceFileHeader header_ {}; 75 TraceFileHelper helper_ {}; 76 uint32_t dataSize_ = 0; 77 bool isSplitFile_ = false; 78 uint32_t splitFileMaxSize_; 79 uint32_t splitFileMaxNum_; 80 std::queue<std::string> splitFilePaths_; 81 std::vector<std::vector<char>> pluginConfigsData_; 82 bool isStop_ = false; 83 int fileNum_; 84 85 DISALLOW_COPY_AND_MOVE(TraceFileWriter); 86 }; 87 88 using TraceFileWriterPtr = STD_PTR(shared, TraceFileWriter); 89 90 #endif // !TRANCE_FILER_WRITER_H