78 lines
2.1 KiB
C++
78 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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#include <string>
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#include <iostream>
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#include <boost/smart_ptr/shared_ptr.hpp>
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#include <boost/smart_ptr/make_shared_object.hpp>
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#include <boost/log/core.hpp>
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#include <boost/log/expressions.hpp>
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#include <boost/log/sinks/sync_frontend.hpp>
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#include <boost/log/sinks/text_multifile_backend.hpp>
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#include <boost/log/sources/logger.hpp>
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#include <boost/log/sources/record_ostream.hpp>
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#include <boost/log/attributes/scoped_attribute.hpp>
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namespace logging = boost::log;
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namespace src = boost::log::sources;
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namespace expr = boost::log::expressions;
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namespace sinks = boost::log::sinks;
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namespace keywords = boost::log::keywords;
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//[ example_sinks_multifile
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void init_logging()
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{
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boost::shared_ptr< logging::core > core = logging::core::get();
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boost::shared_ptr< sinks::text_multifile_backend > backend =
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boost::make_shared< sinks::text_multifile_backend >();
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// Set up the file naming pattern
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backend->set_file_name_composer
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(
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sinks::file::as_file_name_composer(expr::stream << "logs/" << expr::attr< std::string >("RequestID") << ".log")
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);
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// Wrap it into the frontend and register in the core.
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// The backend requires synchronization in the frontend.
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typedef sinks::synchronous_sink< sinks::text_multifile_backend > sink_t;
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boost::shared_ptr< sink_t > sink(new sink_t(backend));
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// Set the formatter
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sink->set_formatter
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(
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expr::stream
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<< "[RequestID: " << expr::attr< std::string >("RequestID")
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<< "] " << expr::smessage
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);
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core->add_sink(sink);
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}
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//]
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void logging_function()
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{
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src::logger lg;
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BOOST_LOG(lg) << "Hello, world!";
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}
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int main(int, char*[])
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{
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init_logging();
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{
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BOOST_LOG_SCOPED_THREAD_TAG("RequestID", "Request1");
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logging_function();
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}
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{
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BOOST_LOG_SCOPED_THREAD_TAG("RequestID", "Request2");
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logging_function();
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}
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return 0;
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}
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