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diff --git a/boost/log/attributes/current_process_id.hpp b/boost/log/attributes/current_process_id.hpp
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+++ b/boost/log/attributes/current_process_id.hpp
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+/*
+ *          Copyright Andrey Semashev 2007 - 2014.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+/*!
+ * \file   current_process_id.hpp
+ * \author Andrey Semashev
+ * \date   12.09.2009
+ *
+ * The header contains implementation of a current process id attribute
+ */
+
+#ifndef BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_
+#define BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_
+
+#include <boost/log/detail/config.hpp>
+#include <boost/log/detail/process_id.hpp>
+#include <boost/log/attributes/constant.hpp>
+#include <boost/log/attributes/attribute_cast.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+//! Process identifier type used by the library
+typedef boost::log::aux::process::id process_id;
+
+namespace attributes {
+
+/*!
+ * \brief A class of an attribute that holds the current process identifier
+ */
+class current_process_id :
+    public constant< process_id >
+{
+    typedef constant< process_id > base_type;
+
+public:
+    /*!
+     * Constructor. Initializes the attribute with the current process identifier.
+     */
+    current_process_id() : base_type(boost::log::aux::this_process::get_id()) {}
+    /*!
+     * Constructor for casting support
+     */
+    explicit current_process_id(cast_source const& source) :
+        base_type(source)
+    {
+    }
+};
+
+} // namespace attributes
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_ATTRIBUTES_CURRENT_PROCESS_ID_HPP_INCLUDED_