商务网站建设体会,广州网络科技有限公司有哪些,网站建设方案及,odoo 网站建设原文链接#xff1a;
工具库1#xff1a;封装一个日志库#xff08;linux)-CSDN博客
一、#xff0c;需求 #xff08;1#xff09;封装一个c/c日志库#xff0c;提供格式打印接口#xff0c;编写程序代码时方便使用#xff1b; #xff08;2#xff09; 格式打印…原文链接
工具库1封装一个日志库linux)-CSDN博客
一、需求 1封装一个c/c日志库提供格式打印接口编写程序代码时方便使用 2 格式打印接口支持可变参数 3格式打印接口封装成可变参数宏便于使用
二实现 1提供格式打印接口 2日志等级分成三个级别分别是错误、警告、普通信息 3支持输出到终端同时支持输出到指定日志文件 4格式打印接口支持可变参数 5打印字符串长度无限制
三源码 1messages.h
/**
*****************************************************************************
* Copyright (C), 2023-2024
*
* file messages.h
* brief printf pretty
*
*
* author sbinhuang
* date 2023-06-28
* version v1.0.0 20230628
*----------------------------------------------------------------------------
* note 历史版本 修改人员 修改日期 修改内容
* note v1.0 sbinhuang 2023-06-28 1.创建
*
*****************************************************************************
*/
#ifndef _SELF_UTILITY_MESSAGES_H_
#define _SELF_UTILITY_MESSAGES_H_
#include iostream
#include fstreamnamespace SelfUtility {
// message type
enum MessageType {NONE 0,ERROR 1,WARN 2,INFO 3
};class Messages {public:// default close file and enable terminal outputstatic bool Init();// open log file// mode true, open or create file and clear file content// mode false, open or create file, doesnt clear file contentstatic bool OpenLogFile(const char *file_name, bool mode 0);// close log filestatic bool CloseLogFile();// enable terminal outputstatic bool EnableTerminalOutput();// disable terminal outputstatic bool DisableTerminalOutput();// print message for variable argumentstatic bool Message(const MessageType type, const char *file_name,int line_number, const char *format, ...);// print message for determine argumentstatic bool Message(const MessageType type, const char *file_name,int line_number, const char *format);private:static std::ofstream _os;static bool _terminal_output;static bool _write_file;
};} // namespace SelfUtility#define LOG_ERROR(format, ...) do { \SelfUtility::Messages::Message(SelfUtility::MessageType::ERROR, \__FILE__, __LINE__, format, __VA_ARGS__); \
} while (0)#define LOG_WARN(format, ...) do { \SelfUtility::Messages::Message(SelfUtility::MessageType::WARN, \__FILE__, __LINE__, format, __VA_ARGS__); \
} while (0)#define LOG_INFO(format, ...) do { \SelfUtility::Messages::Message(SelfUtility::MessageType::INFO, \__FILE__, __LINE__, format, __VA_ARGS__); \
} while (0)#define LOG_PRINT(format, ...) do { \SelfUtility::Messages::Message(SelfUtility::MessageType::NONE, \__FILE__, __LINE__, format, __VA_ARGS__); \
} while (0)#define LOG_INIT() do { \SelfUtility::Messages::Init(); \
} while (0)#endif // _SELF_UTILITY_MESSAGES_H_
(2) messages.cpp
/**
*****************************************************************************
* Copyright (C), 2023-2024
*
* file messages.cpp
* brief printf pretty
*
*
* author sbinhuang
* date 2023-06-28
* version v1.0.0 20230628
*----------------------------------------------------------------------------
* note 历史版本 修改人员 修改日期 修改内容
* note v1.0 sbinhuang 2023-06-28 1.创建
*
*****************************************************************************
*/
#include messages.h
#include stdio.h
#include stdlib.h
#include stdarg.h
#include iostream
#include fstream
#include stringusing SelfUtility::MessageType;
using SelfUtility::Messages;// static variable define for class Messages
std::ofstream Messages::_os;
bool Messages::_write_file;
bool Messages::_terminal_output;// initial log print, default output terminal
bool Messages::Init() {if (_os.is_open()) _os.close();_terminal_output true;_write_file false;return true;
}// Open log file
// mode true, open or create file and clear file content
// mode false, open or create file, doesnt clear file content
bool Messages::OpenLogFile(const char *file_name, bool mode) {if (!file_name) {std::cout Log file name is null pointer! std::endl;return false;}// open fileif (true mode) {_os.open(file_name, std::ios::out);} else {_os.open(file_name, std::ios::app);}if (!_os.is_open()) {std::cout File open failed! ( file_name ) std::endl;return false;}_write_file true;return true;
}// close log file
bool Messages::CloseLogFile() {if (_os.is_open()) _os.close();_write_file false;return true;
}// enable terminal output
bool Messages::EnableTerminalOutput() {_terminal_output true;return true;
}// disable terminal output
bool Messages::DisableTerminalOutput() {_terminal_output false;return true;
}// print message for variable argument
bool Messages::Message(const MessageType type, const char *file_name,int line_number, const char *format, ...) {// print titleif (MessageType::ERROR type) {if (true _terminal_output) {if (file_name) {std::cout [ file_name : line_number ];}std::cout ERROR: ;}if (true _write_file) {if (file_name) {_os [ file_name : line_number ];}_os ERROR: ;}} else if (MessageType::WARN type) {if (true _terminal_output) {if (file_name) {std::cout [ file_name : line_number ];}std::cout WARN: ;}if (true _write_file) {if (file_name) {_os [ file_name : line_number ];}_os WARN: ;}} else if (MessageType::INFO type) {if (true _terminal_output) std::cout INFO: ;if (true _write_file) std::cout INFO: ;}// print messagechar *buf NULL;va_list arg_ptr;va_start(arg_ptr, format);vasprintf(buf, format, arg_ptr);va_end(arg_ptr);if (true _terminal_output) {std::cout buf;}if (true _write_file) {_os buf;}free(buf);buf NULL;return true;
}// print message for determine argument
bool Messages::Message(const MessageType type, const char *file_name,int line_number, const char *format) {// print titleif (MessageType::ERROR type) {if (true _terminal_output) {if (file_name) {std::cout [ file_name : line_number ];}std::cout ERROR: ;}if (true _write_file) {if (file_name) {_os [ file_name : line_number ];}_os ERROR: ;}} else if (MessageType::WARN type) {if (true _terminal_output) {if (file_name) {std::cout [ file_name : line_number ];}std::cout WARN: ;}if (true _write_file) {if (file_name) {_os [ file_name : line_number ];}_os WARN: ;}} else if (MessageType::INFO type) {if (true _terminal_output) std::cout INFO: ;if (true _write_file) std::cout INFO: ;}// print messageif (true _terminal_output) std::cout format;if (true _write_file) _os format;return true;
}
