log4cplus -> dynamic configuration of log during runtime

Today I testetd around with the log4cplus documented here.

I used a simple configuration by properties like:

log4cplus::PropertyConfigurator::doConfigure( logFileName );    

but now I found another possible config by a thread watcher:

log4cplus::ConfigureAndWatchThread watcher( logFileName.c_str(), 5*1000 );

This one checks every 5 seconds the configuration file and updateds the logging
framework.

So by changing the properties, the logging of the running process can be configured.
I've teste this with MinGW on Windows.