149 lines
4.7 KiB
C++
149 lines
4.7 KiB
C++
//
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// basic_socket_iostream.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_BASIC_SOCKET_IOSTREAM_HPP
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#define ASIO_BASIC_SOCKET_IOSTREAM_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/preprocessor/arithmetic/inc.hpp>
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#include <boost/preprocessor/repetition/enum_binary_params.hpp>
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#include <boost/preprocessor/repetition/enum_params.hpp>
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#include <boost/preprocessor/repetition/repeat_from_to.hpp>
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#include <boost/utility/base_from_member.hpp>
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#include "asio/detail/pop_options.hpp"
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#include "asio/basic_socket_streambuf.hpp"
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#include "asio/stream_socket_service.hpp"
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#if !defined(ASIO_SOCKET_IOSTREAM_MAX_ARITY)
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#define ASIO_SOCKET_IOSTREAM_MAX_ARITY 5
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#endif // !defined(ASIO_SOCKET_IOSTREAM_MAX_ARITY)
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// A macro that should expand to:
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// template <typename T1, ..., typename Tn>
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// explicit basic_socket_iostream(T1 x1, ..., Tn xn)
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// : basic_iostream<char>(&this->boost::base_from_member<
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// basic_socket_streambuf<Protocol, StreamSocketService> >::member)
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// {
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// if (rdbuf()->connect(x1, ..., xn) == 0)
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// this->setstate(std::ios_base::failbit);
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// }
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// This macro should only persist within this file.
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#define ASIO_PRIVATE_CTR_DEF(z, n, data) \
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template <BOOST_PP_ENUM_PARAMS(n, typename T)> \
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explicit basic_socket_iostream(BOOST_PP_ENUM_BINARY_PARAMS(n, T, x)) \
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: std::basic_iostream<char>(&this->boost::base_from_member< \
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basic_socket_streambuf<Protocol, StreamSocketService> >::member) \
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{ \
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tie(this); \
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if (rdbuf()->connect(BOOST_PP_ENUM_PARAMS(n, x)) == 0) \
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this->setstate(std::ios_base::failbit); \
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} \
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/**/
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// A macro that should expand to:
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// template <typename T1, ..., typename Tn>
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// void connect(T1 x1, ..., Tn xn)
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// {
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// if (rdbuf()->connect(x1, ..., xn) == 0)
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// this->setstate(std::ios_base::failbit);
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// }
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// This macro should only persist within this file.
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#define ASIO_PRIVATE_CONNECT_DEF(z, n, data) \
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template <BOOST_PP_ENUM_PARAMS(n, typename T)> \
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void connect(BOOST_PP_ENUM_BINARY_PARAMS(n, T, x)) \
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{ \
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if (rdbuf()->connect(BOOST_PP_ENUM_PARAMS(n, x)) == 0) \
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this->setstate(std::ios_base::failbit); \
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} \
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/**/
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namespace asio {
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/// Iostream interface for a socket.
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template <typename Protocol,
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typename StreamSocketService = stream_socket_service<Protocol> >
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class basic_socket_iostream
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: public boost::base_from_member<
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basic_socket_streambuf<Protocol, StreamSocketService> >,
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public std::basic_iostream<char>
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{
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public:
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/// Construct a basic_socket_iostream without establishing a connection.
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basic_socket_iostream()
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: std::basic_iostream<char>(&this->boost::base_from_member<
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basic_socket_streambuf<Protocol, StreamSocketService> >::member)
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{
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tie(this);
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}
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#if defined(GENERATING_DOCUMENTATION)
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/// Establish a connection to an endpoint corresponding to a resolver query.
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/**
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* This constructor automatically establishes a connection based on the
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* supplied resolver query parameters. The arguments are used to construct
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* a resolver query object.
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*/
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template <typename T1, ..., typename TN>
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explicit basic_socket_iostream(T1 t1, ..., TN tn);
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#else
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BOOST_PP_REPEAT_FROM_TO(
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1, BOOST_PP_INC(ASIO_SOCKET_IOSTREAM_MAX_ARITY),
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ASIO_PRIVATE_CTR_DEF, _ )
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#endif
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#if defined(GENERATING_DOCUMENTATION)
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/// Establish a connection to an endpoint corresponding to a resolver query.
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/**
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* This function automatically establishes a connection based on the supplied
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* resolver query parameters. The arguments are used to construct a resolver
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* query object.
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*/
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template <typename T1, ..., typename TN>
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void connect(T1 t1, ..., TN tn);
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#else
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BOOST_PP_REPEAT_FROM_TO(
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1, BOOST_PP_INC(ASIO_SOCKET_IOSTREAM_MAX_ARITY),
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ASIO_PRIVATE_CONNECT_DEF, _ )
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#endif
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/// Close the connection.
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void close()
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{
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if (rdbuf()->close() == 0)
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this->setstate(std::ios_base::failbit);
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}
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/// Return a pointer to the underlying streambuf.
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basic_socket_streambuf<Protocol, StreamSocketService>* rdbuf() const
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{
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return const_cast<basic_socket_streambuf<Protocol, StreamSocketService>*>(
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&this->boost::base_from_member<
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basic_socket_streambuf<Protocol, StreamSocketService> >::member);
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}
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};
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} // namespace asio
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#undef ASIO_PRIVATE_CTR_DEF
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#undef ASIO_PRIVATE_CONNECT_DEF
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_BASIC_SOCKET_IOSTREAM_HPP
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