// (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) && (_MSC_VER >= 1020) | |
# 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 |