| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| #ifndef WEEX_LOG_H_ |
| #define WEEX_LOG_H_ |
| #include <stddef.h> |
| |
| #include <cassert> |
| #include <cstring> |
| #include <sstream> |
| #include <string> |
| #include <iomanip> |
| #include <type_traits> |
| #include <utility> |
| |
| #include "base/common.h" |
| |
| namespace base { |
| |
| const int VERBOSE = 0; |
| const int INFO = 1; |
| const int WARNING = 2; |
| const int ERROR = 3; |
| const int FATAL = 4; |
| |
| #define LOG_ON 1 |
| |
| #define LOG_VERBOSE base::DestructorHelper() |( base::LogMessage(__FILE__, __LINE__, base::VERBOSE).stream()) |
| #define LOG_INFO base::DestructorHelper() |( base::LogMessage(__FILE__, __LINE__, base::INFO).stream()) |
| #define LOG_WARNING base::DestructorHelper() |( base::LogMessage(__FILE__, __LINE__, base::WARNING).stream()) |
| #define LOG_ERROR base::DestructorHelper() |( base::LogMessage(__FILE__, __LINE__, base::ERROR).stream()) |
| #define LOG_FATAL base::DestructorHelper() |( base::LogMessage(__FILE__, __LINE__, base::FATAL).stream()) |
| |
| // use log like this: LOG(INFO) << "abc"; |
| #if LOG_ON |
| #define LOG(priority) LOG_##priority |
| #else |
| #define LOG(priority) 0 |
| #endif |
| |
| class LogMessage { |
| public: |
| LogMessage(const char* filename, int line, int level); |
| ~LogMessage(); |
| |
| std::ostream& stream() { return log_stream_; } |
| |
| int log_priority() const {return log_priority_; } |
| |
| std::string str() { return log_stream_.str(); } |
| |
| private: |
| void InitializeLog(const char* filename, int line, int priority); |
| |
| int log_priority_; |
| std::ostringstream log_stream_; |
| |
| const char* file_name_; |
| const int line_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LogMessage); |
| }; |
| |
| class DestructorHelper { |
| public: |
| DestructorHelper() = default; |
| void operator|(std::ostream&) { } |
| }; |
| |
| } //namespace base |
| #endif |