Chris@16: //
Chris@16: // local/connect_pair.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP
Chris@16: #define BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: 
Chris@16: #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) \
Chris@16:   || defined(GENERATING_DOCUMENTATION)
Chris@16: 
Chris@16: #include <boost/asio/basic_socket.hpp>
Chris@16: #include <boost/asio/detail/socket_ops.hpp>
Chris@16: #include <boost/asio/detail/throw_error.hpp>
Chris@16: #include <boost/asio/error.hpp>
Chris@16: #include <boost/asio/local/basic_endpoint.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace local {
Chris@16: 
Chris@16: /// Create a pair of connected sockets.
Chris@16: template <typename Protocol, typename SocketService1, typename SocketService2>
Chris@16: void connect_pair(
Chris@16:     basic_socket<Protocol, SocketService1>& socket1,
Chris@16:     basic_socket<Protocol, SocketService2>& socket2);
Chris@16: 
Chris@16: /// Create a pair of connected sockets.
Chris@16: template <typename Protocol, typename SocketService1, typename SocketService2>
Chris@16: boost::system::error_code connect_pair(
Chris@16:     basic_socket<Protocol, SocketService1>& socket1,
Chris@16:     basic_socket<Protocol, SocketService2>& socket2,
Chris@16:     boost::system::error_code& ec);
Chris@16: 
Chris@16: template <typename Protocol, typename SocketService1, typename SocketService2>
Chris@16: inline void connect_pair(
Chris@16:     basic_socket<Protocol, SocketService1>& socket1,
Chris@16:     basic_socket<Protocol, SocketService2>& socket2)
Chris@16: {
Chris@16:   boost::system::error_code ec;
Chris@16:   connect_pair(socket1, socket2, ec);
Chris@16:   boost::asio::detail::throw_error(ec, "connect_pair");
Chris@16: }
Chris@16: 
Chris@16: template <typename Protocol, typename SocketService1, typename SocketService2>
Chris@16: inline boost::system::error_code connect_pair(
Chris@16:     basic_socket<Protocol, SocketService1>& socket1,
Chris@16:     basic_socket<Protocol, SocketService2>& socket2,
Chris@16:     boost::system::error_code& ec)
Chris@16: {
Chris@16:   // Check that this function is only being used with a UNIX domain socket.
Chris@16:   boost::asio::local::basic_endpoint<Protocol>* tmp
Chris@16:     = static_cast<typename Protocol::endpoint*>(0);
Chris@16:   (void)tmp;
Chris@16: 
Chris@16:   Protocol protocol;
Chris@16:   boost::asio::detail::socket_type sv[2];
Chris@16:   if (boost::asio::detail::socket_ops::socketpair(protocol.family(),
Chris@16:         protocol.type(), protocol.protocol(), sv, ec)
Chris@16:       == boost::asio::detail::socket_error_retval)
Chris@16:     return ec;
Chris@16: 
Chris@16:   if (socket1.assign(protocol, sv[0], ec))
Chris@16:   {
Chris@16:     boost::system::error_code temp_ec;
Chris@16:     boost::asio::detail::socket_ops::state_type state[2] = { 0, 0 };
Chris@16:     boost::asio::detail::socket_ops::close(sv[0], state[0], true, temp_ec);
Chris@16:     boost::asio::detail::socket_ops::close(sv[1], state[1], true, temp_ec);
Chris@16:     return ec;
Chris@16:   }
Chris@16: 
Chris@16:   if (socket2.assign(protocol, sv[1], ec))
Chris@16:   {
Chris@16:     boost::system::error_code temp_ec;
Chris@16:     socket1.close(temp_ec);
Chris@16:     boost::asio::detail::socket_ops::state_type state = 0;
Chris@16:     boost::asio::detail::socket_ops::close(sv[1], state, true, temp_ec);
Chris@16:     return ec;
Chris@16:   }
Chris@16: 
Chris@16:   return ec;
Chris@16: }
Chris@16: 
Chris@16: } // namespace local
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS)
Chris@16:        //   || defined(GENERATING_DOCUMENTATION)
Chris@16: 
Chris@16: #endif // BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP