On Monday 15 March 2010 22:07:57 Roland Bock wrote:
Vladimir Prus wrote:
First, it seems to me that if two major projects use component/severity scheme, then presumably it's of general utility. Second, in the thread you have mentioned, you yourself provide example solution that are far from trivial. Maybe I'm missing something? In essence, I would like to have:
magic_logger lg; DO_MAGIC(lg, "my_component", debug) << "hi there";
Could you show what will it take?
We are using component/severity, too. I decided to interpret the channel as component. Some sample code is attached to my review:
http://lists.boost.org/Archives/boost/2010/03/162902.php
After some preparation in the init function, developers can do the following:
src::severity_channel_logger<severity_level> lg1(keywords::channel = "FirstComponent");
BOOST_LOG_SEV(lg1, trace) << "A trace severity message"; BOOST_LOG_SEV(lg1, debug) << "A debug severity message";
I plan to hide most of the first line in a typedef and a convenience function.
What I don't like about this solution is that it requires that you define a new object for every componen, which can be inconvenient, including for header-only libraries. What I would like to have is something like // myproject.hpp #ifndef COMPONENT #define COMPONENT "unspecified" #endif #define DEBUG BOOST_LOG_XXX(mygloballogger, COMPONENT, debug) - Volodya