Since end of december 2012, log4cpp has a support for VS 2010. You can now compile log4cpp without pain using VS 2010 or VS 2012.
Log4cpp is available on sourceforget.net at http://sourceforge.net/projects/log4cpp.
Log4cpp is small and efficient logging library with a support for configuration file with RollingFileAppender, etc.
First, you have to create a configuration file for describing your loggers wich are called appenders.
#file log4cpp.property
log4cpp.rootCategory=DEBUG, rootAppender
log4cpp.category.MyLogger=DEBUG, aLogger
log4cpp.appender.rootAppender=ConsoleAppender
log4cpp.appender.rootAppender.layout=BasicLayout
log4cpp.appender.aLogger=RollingFileAppender
log4cpp.appender.aLogger.fileName=aLogger.log
log4cpp.appender.aLogger.maxFileSize=10240
log4cpp.appender.aLogger.maxBackupIndex=5
log4cpp.appender.aLogger.layout=PatternLayout
log4cpp.appender.aLogger.layout.ConversionPattern=[%H:%M:%S.%l] %m%n
#end of file
Once your file is ready, you have to use the primitives of log4cpp to make traces available in the file name aLogger.log.
class MyLogger
{
public:
MyLogger()
{
}
virtual ~MyLogger()
{
log4cpp::Category::shutdown();
}
bool Init()
{
try
{
string initFileName = "log4cpp.property";
log4cpp::PropertyConfigurator::configure(initFileName);
}
catch(log4cpp::ConfigureFailure& f)
{
std::cout << "Configure Problem" << f.what() << std::endl;
return false;
}
return true;
}
void LogDebug(string message)
{
log4cpp::Category & mylogger = log4cpp::Category::getInstance("MyLogger");
myLogger.debug(message);
}
void Loginfo(string message)
{
log4cpp::Category & mylogger = log4cpp::Category::getInstance("MyLogger");
myLogger.info(message);
}
};
With this helper class, you can manipulate your logging entries very easily.
int main()
{
MyLogger log;
if( !log.Init() )
return 0;
log.LogDebug("Enter main...");
log.LogInfo("Main...");
log.LogDebug("Exit main");
}
ChristopheP on Microsoft Technologies 