Re: [boost] Logging library review results

From: Gennadiy Rozental (rogeeff_at_[hidden])
Date: 2008-03-19 02:10:51

Sean Hunt <rideau3 <at> gmail.com> writes:
> I want to log to a file, with three levels of logging. So I might want 
> to do the following (just an example! Not trying to mandate an interface 
> or anything):
> 
> #include <boost/log.hpp>
> 
> using namespace boost;
> using namespace boost::log;
> 
> log<to_file<some_template_tricks>> my_log(warning);
 
Why would you want compile time configuration? I agree with one of the 
reviewers: in majority of the cases the only things that needs to be defined 
at compile time is message/entry type and filter type. 

How is it better than :

regular_log my_log( "thresholdlevel=warning;file=abc.txt" );
 
One thing that might be defined at compile time is level:

log_with_tag<level> my_log( "thresholdlevel=warning;file=abc.txt" );

In general logging should'n use compile time sparcely and prefer interfaces. 
The only preformance critical part is filterring. Formatting and destination 
optimization are pointless IMO.

Gennadiy