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- // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
- // (C) Copyright 2003-2007 Jonathan Turkanis
- // 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.)
- // See http://www.boost.org/libs/iostreams for documentation.
- #ifndef BOOST_IOSTREAMS_FILTERING_STREAMBUF_HPP_INCLUDED
- #define BOOST_IOSTREAMS_FILTERING_STREAMBUF_HPP_INCLUDED
- #if defined(_MSC_VER)
- # pragma once
- #endif
- #include <exception>
- #include <memory> // allocator.
- #include <boost/iostreams/chain.hpp>
- #include <boost/iostreams/detail/access_control.hpp>
- #include <boost/iostreams/detail/char_traits.hpp>
- #include <boost/iostreams/detail/push.hpp>
- #include <boost/iostreams/detail/streambuf.hpp> // pubsync.
- #include <boost/iostreams/detail/streambuf/chainbuf.hpp>
- #include <boost/mpl/if.hpp>
- namespace boost { namespace iostreams {
- //
- // Macro: BOOST_IOSTREAMS_DEFINE_FILTERBUF(name_, chain_type_, default_char_)
- // Description: Defines a template derived from std::basic_streambuf which uses
- // a chain to perform i/o. The template has the following parameters:
- // Ch - The character type.
- // Tr - The character traits type.
- // Alloc - The allocator type.
- // Access - Indicates accessibility of the chain interface; must be either
- // public_ or protected_; defaults to public_.
- //
- #define BOOST_IOSTREAMS_DEFINE_FILTER_STREAMBUF(name_, chain_type_, default_char_) \
- template< typename Mode, \
- typename Ch = default_char_, \
- typename Tr = BOOST_IOSTREAMS_CHAR_TRAITS(Ch), \
- typename Alloc = std::allocator<Ch>, \
- typename Access = public_ > \
- class name_ : public boost::iostreams::detail::chainbuf< \
- chain_type_<Mode, Ch, Tr, Alloc>, Mode, Access \
- > \
- { \
- public: \
- typedef Ch char_type; \
- struct category \
- : Mode, closable_tag, streambuf_tag \
- { }; \
- BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(Tr) \
- typedef Mode mode; \
- typedef chain_type_<Mode, Ch, Tr, Alloc> chain_type; \
- name_() { } \
- BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name_, mode, Ch, push_impl) \
- ~name_() { if (this->is_complete()) this->BOOST_IOSTREAMS_PUBSYNC(); } \
- }; \
- /**/
- BOOST_IOSTREAMS_DEFINE_FILTER_STREAMBUF(filtering_streambuf, boost::iostreams::chain, char)
- BOOST_IOSTREAMS_DEFINE_FILTER_STREAMBUF(filtering_wstreambuf, boost::iostreams::chain, wchar_t)
- typedef filtering_streambuf<input> filtering_istreambuf;
- typedef filtering_streambuf<output> filtering_ostreambuf;
- typedef filtering_wstreambuf<input> filtering_wistreambuf;
- typedef filtering_wstreambuf<output> filtering_wostreambuf;
- } } // End namespaces iostreams, boost.
- #endif // #ifndef BOOST_IOSTREAMS_FILTERING_STREAMBUF_HPP_INCLUDED
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