08bd1fb809
The default filter/formatter factories will now be able to extract severity level values of type boost::log::trivial::severity_level. For filters, this is only supported for attributes with the "Severity" name.
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file main.cpp
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* \author Andrey Semashev
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* \date 26.04.2008
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*
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* \brief An example of initializing the library from a settings file.
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* See the library tutorial for expanded comments on this code.
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* It may also be worthwhile reading the Wiki requirements page:
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* http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Boost.Logging
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*/
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// #define BOOST_ALL_DYN_LINK 1
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#include <exception>
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#include <iostream>
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#include <fstream>
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#include <boost/log/trivial.hpp>
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#include <boost/log/common.hpp>
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#include <boost/log/attributes.hpp>
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#include <boost/log/utility/setup/from_stream.hpp>
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namespace logging = boost::log;
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namespace attrs = boost::log::attributes;
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void try_logging()
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{
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BOOST_LOG_TRIVIAL(trace) << "This is a trace severity record";
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BOOST_LOG_TRIVIAL(debug) << "This is a debug severity record";
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BOOST_LOG_TRIVIAL(info) << "This is an info severity record";
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BOOST_LOG_TRIVIAL(warning) << "This is a warning severity record";
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BOOST_LOG_TRIVIAL(error) << "This is an error severity record";
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BOOST_LOG_TRIVIAL(fatal) << "This is a fatal severity record";
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}
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int main(int argc, char* argv[])
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{
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try
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{
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// Open the file
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std::ifstream settings("settings.txt");
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if (!settings.is_open())
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{
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std::cout << "Could not open settings.txt file" << std::endl;
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return 1;
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}
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// Read the settings and initialize logging library
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logging::init_from_stream(settings);
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// Add some attributes
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logging::core::get()->add_global_attribute("TimeStamp", attrs::local_clock());
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// Try logging
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try_logging();
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// Now enable tagging and try again
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BOOST_LOG_SCOPED_THREAD_TAG("Tag", "TAGGED");
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try_logging();
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return 0;
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}
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catch (std::exception& e)
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{
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std::cout << "FAILURE: " << e.what() << std::endl;
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return 1;
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}
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}
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