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- /*
- * Copyright Andrey Semashev 2007 - 2015.
- * Distributed under the Boost Software License, Version 1.0.
- * (See accompanying file LICENSE_1_0.txt or copy at
- * http://www.boost.org/LICENSE_1_0.txt)
- */
- #include <string>
- #include <fstream>
- #include <iostream>
- #include <boost/smart_ptr/shared_ptr.hpp>
- #include <boost/core/null_deleter.hpp>
- #include <boost/log/core.hpp>
- #include <boost/log/sinks/sync_frontend.hpp>
- #include <boost/log/sinks/text_ostream_backend.hpp>
- #include <boost/log/sources/severity_channel_logger.hpp>
- #include <boost/log/sources/record_ostream.hpp>
- namespace logging = boost::log;
- namespace src = boost::log::sources;
- namespace sinks = boost::log::sinks;
- namespace keywords = boost::log::keywords;
- //[ example_sinks_ostream
- void init_logging()
- {
- boost::shared_ptr< logging::core > core = logging::core::get();
- // Create a backend and attach a couple of streams to it
- boost::shared_ptr< sinks::text_ostream_backend > backend =
- boost::make_shared< sinks::text_ostream_backend >();
- backend->add_stream(
- boost::shared_ptr< std::ostream >(&std::clog, boost::null_deleter()));
- backend->add_stream(
- boost::shared_ptr< std::ostream >(new std::ofstream("sample.log")));
- // Enable auto-flushing after each log record written
- backend->auto_flush(true);
- // Wrap it into the frontend and register in the core.
- // The backend requires synchronization in the frontend.
- typedef sinks::synchronous_sink< sinks::text_ostream_backend > sink_t;
- boost::shared_ptr< sink_t > sink(new sink_t(backend));
- core->add_sink(sink);
- }
- //]
- int main(int, char*[])
- {
- init_logging();
- src::severity_channel_logger< > lg(keywords::channel = "net");
- BOOST_LOG_SEV(lg, 3) << "Hello world!";
- return 0;
- }
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