comparison DEPENDENCIES/generic/include/boost/log/sinks/basic_sink_backend.hpp @ 16:2665513ce2d3

Add boost headers

+/*
+ *          Copyright Andrey Semashev 2007 - 2013.
+ * 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   basic_sink_backend.hpp
+ * \author Andrey Semashev
+ * \date   04.11.2007
+ *
+ * The header contains implementation of base classes for sink backends.
+ */
+
+#ifndef BOOST_LOG_SINKS_BASIC_SINK_BACKEND_HPP_INCLUDED_
+#define BOOST_LOG_SINKS_BASIC_SINK_BACKEND_HPP_INCLUDED_
+
+#include <string>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/log/detail/config.hpp>
+#include <boost/log/sinks/frontend_requirements.hpp>
+#include <boost/log/core/record_view.hpp>
+#include <boost/log/attributes/attribute_value_set.hpp>
+#include <boost/log/detail/header.hpp>
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+
+BOOST_LOG_OPEN_NAMESPACE
+
+namespace sinks {
+
+/*!
+ * \brief Base class for a logging sink backend
+ *
+ * The \c basic_sink_backend class template defines a number of types that
+ * all sink backends are required to define. All sink backends have to derive from the class.
+ */
+template< typename FrontendRequirementsT >
+struct basic_sink_backend
+{
+    //! Frontend requirements tag
+    typedef FrontendRequirementsT frontend_requirements;
+
+    BOOST_DEFAULTED_FUNCTION(basic_sink_backend(), {})
+
+    BOOST_DELETED_FUNCTION(basic_sink_backend(basic_sink_backend const&))
+    BOOST_DELETED_FUNCTION(basic_sink_backend& operator= (basic_sink_backend const&))
+};
+
+/*!
+ * \brief A base class for a logging sink backend with message formatting support
+ *
+ * The \c basic_formatted_sink_backend class template indicates to the frontend that
+ * the backend requires logging record formatting.
+ *
+ * The class allows to request encoding conversion in case if the sink backend
+ * requires the formatted string in some particular encoding (e.g. if underlying API
+ * supports only narrow or wide characters). In order to perform conversion one
+ * should specify the desired final character type in the \c TargetCharT template
+ * parameter.
+ */
+template<
+    typename CharT,
+    typename FrontendRequirementsT = synchronized_feeding
+>
+struct basic_formatted_sink_backend :
+    public basic_sink_backend<
+        typename combine_requirements< FrontendRequirementsT, formatted_records >::type
+    >
+{
+private:
+    typedef basic_sink_backend<
+        typename combine_requirements< FrontendRequirementsT, formatted_records >::type
+    > base_type;
+
+public:
+    //! Character type
+    typedef CharT char_type;
+    //! Formatted string type
+    typedef std::basic_string< char_type > string_type;
+    //! Frontend requirements
+    typedef typename base_type::frontend_requirements frontend_requirements;
+};
+
+} // namespace sinks
+
+BOOST_LOG_CLOSE_NAMESPACE // namespace log
+
+} // namespace boost
+
+#include <boost/log/detail/footer.hpp>
+
+#endif // BOOST_LOG_SINKS_BASIC_SINK_BACKEND_HPP_INCLUDED_