ceph/src/boost/libs/log/example/doc/tutorial_logging.cpp

   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 <boost/move/utility_core.hpp>
   9 #include <boost/log/sources/logger.hpp>
  10 #include <boost/log/sources/record_ostream.hpp>
  11 #include <boost/log/sources/global_logger_storage.hpp>
  12 #include <boost/log/utility/setup/file.hpp>
  13 #include <boost/log/utility/setup/common_attributes.hpp>
  14
  15 namespace logging = boost::log;
  16 namespace src = boost::log::sources;
  17 namespace keywords = boost::log::keywords;
  18
  19 BOOST_LOG_INLINE_GLOBAL_LOGGER_DEFAULT(my_logger, src::logger_mt)
  20
  21 void logging_function1()
  22 {
  23     src::logger lg;
  24
  25 //[ example_tutorial_logging_manual_logging
  26     logging::record rec = lg.open_record();
  27     if (rec)
  28     {
  29         logging::record_ostream strm(rec);
  30         strm << "Hello, World!";
  31         strm.flush();
  32         lg.push_record(boost::move(rec));
  33     }
  34 //]
  35 }
  36
  37 void logging_function2()
  38 {
  39     src::logger_mt& lg = my_logger::get();
  40     BOOST_LOG(lg) << "Greetings from the global logger!";
  41 }
  42
  43 int main(int, char*[])
  44 {
  45     logging::add_file_log("sample.log");
  46     logging::add_common_attributes();
  47
  48     logging_function1();
  49     logging_function2();
  50
  51     return 0;
  52 }