C++日志级别管控 log_wrapper

log_wrapper.h
#ifndef LOG_WRAPPER_H_
#define LOG_WRAPPER_H_

#include "stdio.h"

/**
 * \brief Contains macro that wrap standard logging calls.  
 *
 * Macros are used because passing variable argument lists are much easier
 * than passing them through functions.
 */

namespace log_wrapper
{

#define STDIOLOG  // enable log_wrapper

#define LOG_LEVEL_INFO  // log level control:
// LOG_LEVEL_COMM  LOG_LEVEL_DEBUG  LOG_LEVEL_INFO  
// LOG_LEVEL_WARN LOG_LEVEL_ERROR LOG_LEVEL_FATAL


#ifdef STDIOLOG 

#define LOG(level, format, ...) \
do \
{ \
  printf(level); \
  printf(": "); \
  printf(format, ##__VA_ARGS__); \
  printf("\n"); \
  } while (0)

#ifdef LOG_LEVEL_COMM
// WARNING: LOG_COMM produces many messages and could slow down program
// execution on the robot.
#define LOG_COMM(format, ...)  LOG("COMM", format, ##__VA_ARGS__) 
#define LOG_DEBUG(format, ...) LOG("DEBUG", format, ##__VA_ARGS__) 
#define LOG_INFO(format, ...)  LOG("INFO", format, ##__VA_ARGS__)
#define LOG_WARN(format, ...)  LOG("WARNING", format, ##__VA_ARGS__)
#define LOG_ERROR(format, ...) LOG("ERROR", format, ##__VA_ARGS__)
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#elif defined(LOG_LEVEL_DEBUG)
#define LOG_COMM(format, ...) 
#define LOG_DEBUG(format, ...) LOG("DEBUG", format, ##__VA_ARGS__) 
#define LOG_INFO(format, ...)  LOG("INFO", format, ##__VA_ARGS__)
#define LOG_WARN(format, ...)  LOG("WARNING", format, ##__VA_ARGS__)
#define LOG_ERROR(format, ...) LOG("ERROR", format, ##__VA_ARGS__)
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#elif defined(LOG_LEVEL_INFO) 
#define LOG_COMM(format, ...)  
#define LOG_DEBUG(format, ...) 
#define LOG_INFO(format, ...)  LOG("INFO", format, ##__VA_ARGS__)
#define LOG_WARN(format, ...)  LOG("WARNING", format, ##__VA_ARGS__)
#define LOG_ERROR(format, ...) LOG("ERROR", format, ##__VA_ARGS__)
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#elif defined(LOG_LEVEL_WARN)
#define LOG_COMM(format, ...)  
#define LOG_DEBUG(format, ...) 
#define LOG_INFO(format, ...) 
#define LOG_WARN(format, ...)  LOG("WARNING", format, ##__VA_ARGS__)
#define LOG_ERROR(format, ...) LOG("ERROR", format, ##__VA_ARGS__)
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#elif defined(LOG_LEVEL_ERROR)
#define LOG_COMM(format, ...)  
#define LOG_DEBUG(format, ...) 
#define LOG_INFO(format, ...)  
#define LOG_WARN(format, ...)
#define LOG_ERROR(format, ...) LOG("ERROR", format, ##__VA_ARGS__)
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#elif defined(LOG_LEVEL_FATAL) 
#define LOG_COMM(format, ...)  
#define LOG_DEBUG(format, ...) 
#define LOG_INFO(format, ...)  
#define LOG_WARN(format, ...) 
#define LOG_ERROR(format, ...) 
#define LOG_FATAL(format, ...) LOG("FATAL", format, ##__VA_ARGS__)

#endif // #ifdef LOG_LEVEL_COMM

#else
// LOG DISABLED
#define LOG_COMM(format, ...)  
#define LOG_DEBUG(format, ...) 
#define LOG_INFO(format, ...)  
#define LOG_WARN(format, ...) 
#define LOG_ERROR(format, ...) 
#define LOG_FATAL(format, ...) 

#endif // #ifdef STDIOLOG 

} // namespace loge_wrapper


#endif /* LOG_WRAPPER_H_ */
C++日志 级别管控 log_wrapper

猜你喜欢

C++日志级别管控 log_wrapper
