1 /** 2 * Copyright 2023 Huawei Technologies Co., Ltd 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 MINDSPORE_MINDSPORE_CCSRC_DEBUG_DATA_DUMP_CSV_WRITER_H_ 18 #define MINDSPORE_MINDSPORE_CCSRC_DEBUG_DATA_DUMP_CSV_WRITER_H_ 19 20 #include <memory> 21 #include <string> 22 #include <fstream> 23 #include <mutex> 24 #include <shared_mutex> 25 #include "utils/ms_utils.h" 26 27 namespace mindspore { 28 class CsvWriter { 29 public: 30 static CsvWriter &GetInstance(); 31 32 CsvWriter() = default; 33 ~CsvWriter(); 34 DISABLE_COPY_AND_ASSIGN(CsvWriter) 35 bool OpenFile(const std::string &path, const std::string &header = "", bool trunc = false); 36 void CloseFile() noexcept; 37 template <typename T> 38 void WriteToCsv(const T &val, bool end_line = false) { 39 std::shared_lock<std::shared_mutex> lock(write_mutex_); 40 file_ << val; 41 if (end_line) { 42 file_ << kEndLine; 43 (void)file_.flush(); 44 } else { 45 file_ << kSeparator; 46 } 47 } 48 49 private: 50 const std::string kSeparator = ","; 51 const std::string kEndLine = "\n"; 52 std::ofstream file_; 53 std::string file_path_str_ = ""; 54 std::shared_mutex write_mutex_; 55 }; 56 } // namespace mindspore 57 #endif // MINDSPORE_MINDSPORE_CCSRC_DEBUG_DATA_DUMP_CSV_WRITER_H_ 58