1 /*
2 * Copyright Andrey Semashev 2007 - 2015.
3 * Distributed under the Boost Software License, Version 1.0.
4 * (See accompanying file LICENSE_1_0.txt or copy at
5 * http://www.boost.org/LICENSE_1_0.txt)
6 */
7
8 #include <fstream>
9 #include <iomanip>
10 #include <boost/smart_ptr/shared_ptr.hpp>
11 #include <boost/smart_ptr/make_shared_object.hpp>
12 #include <boost/log/core.hpp>
13 #include <boost/log/trivial.hpp>
14 #include <boost/log/expressions.hpp>
15 #include <boost/log/sinks/sync_frontend.hpp>
16 #include <boost/log/sinks/text_ostream_backend.hpp>
17 #include <boost/log/sources/severity_logger.hpp>
18 #include <boost/log/sources/record_ostream.hpp>
19 #include <boost/log/utility/setup/common_attributes.hpp>
20
21 namespace logging = boost::log;
22 namespace src = boost::log::sources;
23 namespace expr = boost::log::expressions;
24 namespace sinks = boost::log::sinks;
25 namespace keywords = boost::log::keywords;
26
27 //[ example_tutorial_formatters_stream_manual
init()28 void init()
29 {
30 typedef sinks::synchronous_sink< sinks::text_ostream_backend > text_sink;
31 boost::shared_ptr< text_sink > sink = boost::make_shared< text_sink >();
32
33 sink->locked_backend()->add_stream(
34 boost::make_shared< std::ofstream >("sample.log"));
35
36 sink->set_formatter
37 (
38 expr::stream
39 // line id will be written in hex, 8-digits, zero-filled
40 << std::hex << std::setw(8) << std::setfill('0') << expr::attr< unsigned int >("LineID")
41 << ": <" << logging::trivial::severity
42 << "> " << expr::smessage
43 );
44
45 logging::core::get()->add_sink(sink);
46 }
47 //]
48
main(int,char * [])49 int main(int, char*[])
50 {
51 init();
52 logging::add_common_attributes();
53
54 using namespace logging::trivial;
55 src::severity_logger< severity_level > lg;
56
57 BOOST_LOG_SEV(lg, trace) << "A trace severity message";
58 BOOST_LOG_SEV(lg, debug) << "A debug severity message";
59 BOOST_LOG_SEV(lg, info) << "An informational severity message";
60 BOOST_LOG_SEV(lg, warning) << "A warning severity message";
61 BOOST_LOG_SEV(lg, error) << "An error severity message";
62 BOOST_LOG_SEV(lg, fatal) << "A fatal severity message";
63
64 return 0;
65 }
66