ceph/src/boost/libs/log/include/boost/log/attributes/current_process_name.hpp

   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  * \file   current_process_name.hpp
   9  * \author Andrey Semashev
  10  * \date   29.07.2012
  11  *
  12  * The header contains implementation of a current process name attribute
  13  */
  14
  15 #ifndef BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_NAME_HPP_INCLUDED_
  16 #define BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_NAME_HPP_INCLUDED_
  17
  18 #include <string>
  19 #include <boost/log/detail/config.hpp>
  20 #include <boost/log/attributes/constant.hpp>
  21 #include <boost/log/attributes/attribute_cast.hpp>
  22 #include <boost/log/detail/header.hpp>
  23
  24 #ifdef BOOST_HAS_PRAGMA_ONCE
  25 #pragma once
  26 #endif
  27
  28 namespace boost {
  29
  30 BOOST_LOG_OPEN_NAMESPACE
  31
  32 namespace aux {
  33
  34 //! The function returns the current process name
  35 BOOST_LOG_API std::string get_process_name();
  36
  37 } // namespace aux
  38
  39 namespace attributes {
  40
  41 /*!
  42  * \brief A class of an attribute that holds the current process name
  43  */
  44 class current_process_name :
  45     public constant< std::string >
  46 {
  47     typedef constant< std::string > base_type;
  48
  49 public:
  50     /*!
  51      * Constructor. Initializes the attribute with the current process name.
  52      */
  53     current_process_name() : base_type(boost::log::aux::get_process_name()) {}
  54     /*!
  55      * Constructor for casting support
  56      */
  57     explicit current_process_name(cast_source const& source) :
  58         base_type(source)
  59     {
  60     }
  61 };
  62
  63 } // namespace attributes
  64
  65 BOOST_LOG_CLOSE_NAMESPACE // namespace log
  66
  67 } // namespace boost
  68
  69 #include <boost/log/detail/footer.hpp>
  70
  71 #endif // BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_NAME_HPP_INCLUDED_