1 /* 2 * Copyright (c) 2024 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 16 #ifndef JSVM_LOG_H 17 #define JSVM_LOG_H 18 #include <fstream> 19 #include <iostream> 20 #include <sstream> 21 22 #include "platform/platform.h" 23 24 namespace jsvm { 25 class LogStream : public std::stringstream { 26 public: LogStream()27 LogStream() : std::stringstream() {} 28 29 virtual ~LogStream() = default; 30 }; 31 32 class LogConsole : public LogStream { 33 public: LogConsole(platform::OS::LogLevel level)34 explicit LogConsole(platform::OS::LogLevel level) : LogStream(), level(level) {} 35 ~LogConsole()36 ~LogConsole() override 37 { 38 platform::OS::PrintString(level, str().c_str()); 39 } 40 41 private: 42 platform::OS::LogLevel level; 43 }; 44 45 class LogFile : public LogStream { 46 public: LogFile(const char * filename)47 explicit LogFile(const char* filename) : file(filename, std::ios::app) {}; 48 ~LogFile()49 ~LogFile() override 50 { 51 file << str() << std::endl; 52 } 53 54 private: 55 std::ofstream file; 56 }; 57 58 class LogInfo : public LogConsole { 59 public: LogInfo()60 LogInfo() : LogConsole(platform::OS::LogLevel::LOG_INFO) {} 61 }; 62 63 class LogError : public LogConsole { 64 public: LogError()65 LogError() : LogConsole(platform::OS::LogLevel::LOG_ERROR) {} 66 }; 67 68 class LogFatal : public LogConsole { 69 public: LogFatal()70 LogFatal() : LogConsole(platform::OS::LogLevel::LOG_FATAL) {} 71 }; 72 } // namespace jsvm 73 74 // Support LOG(Info), LOG(Error), LOG(Fatal) 75 #define LOG(level) jsvm::Log##level() 76 77 // Print Log to file 78 #define LOG_FILE(filename) jsvm::LogFile(filename) 79 #endif