Re: [Boost-users] boost logging from shared libraries

I just remembered that for windows I had to create a version of BOOST_DECLARE_LOG and BOOST_DEFINE_LOG for dll's, as in: #define BOOST_DECLARE_LOG_DLL(log_name) \ struct log_name ## _log_class { enum { is_compile_time = 0, is_enabled = 1 }; }; \ BOOST_LOG_USE_IN_DLL_DECL ::boost::logging::logger & log_name##_log(); // note: you need to include <boost/log/log_impl.hpp> before using this #define BOOST_DEFINE_LOG_DLL(log_name,log_str) \ BOOST_LOG_USE_IN_DLL_DECL ::boost::logging::logger & log_name##_log() { \ static ::boost::logging::mark_log_as_compile_time_t< (log_name ## _log_class::is_compile_time != 0) > mark_logger(log_str); \ static ::boost::logging::logger l(log_str); return l; \ } where BOOST_LOG_USE_IN_DLL_DECL is the usual __decl_export/import. I think that may address the problem you are having. Oliver -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Austin Bingham Sent: August 17, 2005 10:58 AM To: boost-users@lists.boost.org; john@torjo.com Subject: [Boost-users] boost logging from shared libraries First, I wasn't sure where would be the most appropriate place to post this question, so I apologize if it's gone to the wrong place. I'm trying to figure out how to put logging statements in some shared libraries which are then controlled via manipulate_logs() calls an the executable that uses the libraries. It appears, after some rudimentary experiments, that this does not work, and I was hoping to find out if there is a way to do it. The logging system, of course, does log manipulation using log names and regular expression matching. As such, I assumed that logs were statically allocated and, in some way, all registered with some central registry which made them all available via their names. Stepping through logging calls in the libraries seems to indicate that logging code is being accessed and, as far as I can tell, the logs are "enabled" and, in fact, trying to log messages (to cout, for what it's worth). However, I don't see anything printed except for log messages genereted from the executable's source code. So, is what I'm trying to do even feasible? I would love to be able to have diagnostics built into my libraries which I could dis/enable as necessary from the executive level. Hopefully I'm just missing something simple. Thanks. -- Austin Bingham "If I were creating the world I wouldn't mess about with butterflies and daffodils. I would have started with lasers, eight o'clock, Day One!" Evil _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users