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//
// local/connect_pair.hpp
// ~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2014 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//
#ifndef BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP
#define BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) \
|| defined(GENERATING_DOCUMENTATION)
#include <boost/asio/basic_socket.hpp>
#include <boost/asio/detail/socket_ops.hpp>
#include <boost/asio/detail/throw_error.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/local/basic_endpoint.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace local {
/// Create a pair of connected sockets.
template <typename Protocol, typename SocketService1, typename SocketService2>
void connect_pair(
basic_socket<Protocol, SocketService1>& socket1,
basic_socket<Protocol, SocketService2>& socket2);
/// Create a pair of connected sockets.
template <typename Protocol, typename SocketService1, typename SocketService2>
boost::system::error_code connect_pair(
basic_socket<Protocol, SocketService1>& socket1,
basic_socket<Protocol, SocketService2>& socket2,
boost::system::error_code& ec);
template <typename Protocol, typename SocketService1, typename SocketService2>
inline void connect_pair(
basic_socket<Protocol, SocketService1>& socket1,
basic_socket<Protocol, SocketService2>& socket2)
{
boost::system::error_code ec;
connect_pair(socket1, socket2, ec);
boost::asio::detail::throw_error(ec, "connect_pair");
}
template <typename Protocol, typename SocketService1, typename SocketService2>
inline boost::system::error_code connect_pair(
basic_socket<Protocol, SocketService1>& socket1,
basic_socket<Protocol, SocketService2>& socket2,
boost::system::error_code& ec)
{
// Check that this function is only being used with a UNIX domain socket.
boost::asio::local::basic_endpoint<Protocol>* tmp
= static_cast<typename Protocol::endpoint*>(0);
(void)tmp;
Protocol protocol;
boost::asio::detail::socket_type sv[2];
if (boost::asio::detail::socket_ops::socketpair(protocol.family(),
protocol.type(), protocol.protocol(), sv, ec)
== boost::asio::detail::socket_error_retval)
return ec;
if (socket1.assign(protocol, sv[0], ec))
{
boost::system::error_code temp_ec;
boost::asio::detail::socket_ops::state_type state[2] = { 0, 0 };
boost::asio::detail::socket_ops::close(sv[0], state[0], true, temp_ec);
boost::asio::detail::socket_ops::close(sv[1], state[1], true, temp_ec);
return ec;
}
if (socket2.assign(protocol, sv[1], ec))
{
boost::system::error_code temp_ec;
socket1.close(temp_ec);
boost::asio::detail::socket_ops::state_type state = 0;
boost::asio::detail::socket_ops::close(sv[1], state, true, temp_ec);
return ec;
}
return ec;
}
} // namespace local
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
// || defined(GENERATING_DOCUMENTATION)
#endif // BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP
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