ceph/src/boost/libs/log/include/boost/log/attributes/current_process_id.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_id.hpp
   9  * \author Andrey Semashev
  10  * \date   12.09.2009
  11  *
  12  * The header contains implementation of a current process id attribute
  13  */
  14
  15 #ifndef BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_
  16 #define BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_
  17
  18 #include <boost/log/detail/config.hpp>
  19 #include <boost/log/detail/process_id.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 //! Process identifier type used by the library
  33 typedef boost::log::aux::process::id process_id;
  34
  35 namespace attributes {
  36
  37 /*!
  38  * \brief A class of an attribute that holds the current process identifier
  39  */
  40 class current_process_id :
  41     public constant< process_id >
  42 {
  43     typedef constant< process_id > base_type;
  44
  45 public:
  46     /*!
  47      * Constructor. Initializes the attribute with the current process identifier.
  48      */
  49     current_process_id() : base_type(boost::log::aux::this_process::get_id()) {}
  50     /*!
  51      * Constructor for casting support
  52      */
  53     explicit current_process_id(cast_source const& source) :
  54         base_type(source)
  55     {
  56     }
  57 };
  58
  59 } // namespace attributes
  60
  61 BOOST_LOG_CLOSE_NAMESPACE // namespace log
  62
  63 } // namespace boost
  64
  65 #include <boost/log/detail/footer.hpp>
  66
  67 #endif // BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_