1 | // |
2 | // local/connect_pair.hpp |
3 | // ~~~~~~~~~~~~~~~~~~~~~~ |
4 | // |
5 | // Copyright (c) 2003-2024 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
6 | // |
7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
9 | // |
10 | |
11 | #ifndef BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP |
12 | #define BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP |
13 | |
14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
15 | # pragma once |
16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
17 | |
18 | #include <boost/asio/detail/config.hpp> |
19 | |
20 | #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) \ |
21 | || defined(GENERATING_DOCUMENTATION) |
22 | |
23 | #include <boost/asio/basic_socket.hpp> |
24 | #include <boost/asio/detail/socket_ops.hpp> |
25 | #include <boost/asio/detail/throw_error.hpp> |
26 | #include <boost/asio/error.hpp> |
27 | #include <boost/asio/local/basic_endpoint.hpp> |
28 | |
29 | #include <boost/asio/detail/push_options.hpp> |
30 | |
31 | namespace boost { |
32 | namespace asio { |
33 | namespace local { |
34 | |
35 | /// Create a pair of connected sockets. |
36 | template <typename Protocol, typename Executor1, typename Executor2> |
37 | void connect_pair(basic_socket<Protocol, Executor1>& socket1, |
38 | basic_socket<Protocol, Executor2>& socket2); |
39 | |
40 | /// Create a pair of connected sockets. |
41 | template <typename Protocol, typename Executor1, typename Executor2> |
42 | BOOST_ASIO_SYNC_OP_VOID connect_pair(basic_socket<Protocol, Executor1>& socket1, |
43 | basic_socket<Protocol, Executor2>& socket2, boost::system::error_code& ec); |
44 | |
45 | template <typename Protocol, typename Executor1, typename Executor2> |
46 | inline void connect_pair(basic_socket<Protocol, Executor1>& socket1, |
47 | basic_socket<Protocol, Executor2>& socket2) |
48 | { |
49 | boost::system::error_code ec; |
50 | connect_pair(socket1, socket2, ec); |
51 | boost::asio::detail::throw_error(err: ec, location: "connect_pair" ); |
52 | } |
53 | |
54 | template <typename Protocol, typename Executor1, typename Executor2> |
55 | inline BOOST_ASIO_SYNC_OP_VOID connect_pair( |
56 | basic_socket<Protocol, Executor1>& socket1, |
57 | basic_socket<Protocol, Executor2>& socket2, boost::system::error_code& ec) |
58 | { |
59 | // Check that this function is only being used with a UNIX domain socket. |
60 | boost::asio::local::basic_endpoint<Protocol>* tmp |
61 | = static_cast<typename Protocol::endpoint*>(0); |
62 | (void)tmp; |
63 | |
64 | Protocol protocol; |
65 | boost::asio::detail::socket_type sv[2]; |
66 | if (boost::asio::detail::socket_ops::socketpair(af: protocol.family(), |
67 | type: protocol.type(), protocol: protocol.protocol(), sv, ec) |
68 | == boost::asio::detail::socket_error_retval) |
69 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
70 | |
71 | socket1.assign(protocol, sv[0], ec); |
72 | if (ec) |
73 | { |
74 | boost::system::error_code temp_ec; |
75 | boost::asio::detail::socket_ops::state_type state[2] = { 0, 0 }; |
76 | boost::asio::detail::socket_ops::close(s: sv[0], state&: state[0], destruction: true, ec&: temp_ec); |
77 | boost::asio::detail::socket_ops::close(s: sv[1], state&: state[1], destruction: true, ec&: temp_ec); |
78 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
79 | } |
80 | |
81 | socket2.assign(protocol, sv[1], ec); |
82 | if (ec) |
83 | { |
84 | boost::system::error_code temp_ec; |
85 | socket1.close(temp_ec); |
86 | boost::asio::detail::socket_ops::state_type state = 0; |
87 | boost::asio::detail::socket_ops::close(s: sv[1], state, destruction: true, ec&: temp_ec); |
88 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
89 | } |
90 | |
91 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
92 | } |
93 | |
94 | } // namespace local |
95 | } // namespace asio |
96 | } // namespace boost |
97 | |
98 | #include <boost/asio/detail/pop_options.hpp> |
99 | |
100 | #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) |
101 | // || defined(GENERATING_DOCUMENTATION) |
102 | |
103 | #endif // BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP |
104 | |