Hi All,
I am trying to introduce boost::log into one of projects I am working on.
The application already does some logging to the trace file and additionaly
uses Windows Event Log to post messages. What I am going to do is to
replace the existing logging framework with boost::log.
Being frank - these are my first attempts at boost at all. I am following
exactly the steps from the examples section of the documentation. I have
written the following code:
boost::shared_ptr< sinks::event_log_backend > backend(
new sinks::event_log_backend((
keywords::message_file = "<path to library>.dll",
keywords::log_name = "My Application",
keywords::log_source = "My Source"
))
);
sinks::event_log::event_composer composer(
sinks::event_log::direct_event_id_mapping<int>("EventId")
);
composer[MY_APPLICATION_SESSION_CREATION_FAILURE] % fmt::message();
backend->set_event_composer(composer);
boost::shared_ptr> sink(
new sinks::synchronous_sink< sinks::event_log_backend >(backend)
);
sink->set_filter(
(flt::attr<SeverityLevel>("Severity") == info ||
flt::attr<SeverityLevel>("Severity") == warning ||
flt::attr<SeverityLevel>("Severity") == error ||
flt::attr<SeverityLevel>("Severity") == fatal) &&
flt::has_attr<int>("EventId")
);
sinks::event_log::custom_event_type_mapping<SeverityLevel>
mapping("Severity");
mapping[trace] = sinks::event_log::info;
mapping[debug] = sinks::event_log::info;
mapping[info] = sinks::event_log::info;
mapping[warning] = sinks::event_log::warning;
mapping[error] = sinks::event_log::error;
mapping[fatal] = sinks::event_log::error;
sink->locked_backend()->set_event_type_mapper(mapping);
logging::core::get()->add_sink(sink);
I am building the code with Visual Studio 2010. Unfortunately I get the
following error:
1>F:\boost\boost\boost/function/function_template.hpp(153): error C2064:
term does not evaluate to a function taking 3 arguments
1> class does not define an 'operator()' or a user defined
conversion operator to a pointer-to-function or reference-to-function that
takes appropriate number of arguments
1> F:\boost\boost\boost/function/function_template.hpp(147) :
while compiling class template member function 'void
boost::detail::function::void_function_obj_invoker3::invoke(boost::detail::function::function_buffer
&,T0,T1,T2)'
1> with
1> [
1>
FunctionObj=boost::log_mt_nt5::formatters::fmt_message<char>,
1> R=void,
1> T0=std::basic_ostream &,
1> T1=const
boost::log_mt_nt5::basic_attribute_values_view<char> &,
1> T2=const
std::basic_string &
1> ]
1> F:\boost\boost\boost/function/function_template.hpp(907) : see
reference to class template instantiation
'boost::detail::function::void_function_obj_invoker3'
being compiled
1> with
1> [
1>
FunctionObj=boost::log_mt_nt5::formatters::fmt_message<char>,
1> R=void,
1> T0=std::basic_ostream &,
1> T1=const
boost::log_mt_nt5::basic_attribute_values_view<char> &,
1> T2=const
std::basic_string &
1> ]
1> F:\boost\boost\boost/function/function_template.hpp(722) : see
reference to function template instantiation 'void
boost::function3::assign_to<Functor>(Functor)' being compiled
1> with
1> [
1> R=void,
1> T0=std::basic_ostream &,
1> T1=const
boost::log_mt_nt5::basic_attribute_values_view<char> &,
1> T2=const
std::basic_string &,
1> Functor=boost::log_mt_nt5::formatters::fmt_message<char>
1> ]
1> F:\boost\boost\boost/log/sinks/event_log_backend.hpp(678) : see
reference to function template instantiation
'boost::function3::function3<FormatterT>(Functor,int)' being
compiled
1> with
1> [
1> R=void,
1> T0=std::basic_ostream &,
1> T1=const
boost::log_mt_nt5::basic_attribute_values_view<char> &,
1> T2=const
std::basic_string &,
1> FormatterT=boost::log_mt_nt5::formatters::fmt_message<char>,
1> Functor=boost::log_mt_nt5::formatters::fmt_message<char>
1> ]
1> LoggingFacility.cpp(111) : see reference to function template
instantiation
'boost::log_mt_nt5::sinks::event_log::basic_event_composer<CharT>::event_map_reference
&boost::log_mt_nt5::sinks::event_log::basic_event_composer<CharT>::event_map_reference::operator
%(const FormatterT &)'
being compiled
1> with
1> [
1> CharT=char,
1> FormatterT=boost::log_mt_nt5::formatters::fmt_message<char>
1> ]
The problem seems to be caused by the following expression:
composer[MY_APPLICATION_SESSION_CREATION_FAILURE] % fmt::message();
Other backends work flawlessly. Event log files (.h/.mc/.dll) are OK
too. Any help?
Regards,
Konrad Rybacki.
Konrad Rybacki