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7c673cae FG |
1 | // |
2 | // local/connect_pair.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
b32b8144 | 5 | // Copyright (c) 2003-2017 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
7c673cae FG |
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. | |
b32b8144 | 36 | template <typename Protocol BOOST_ASIO_SVC_TPARAM BOOST_ASIO_SVC_TPARAM1> |
7c673cae | 37 | void connect_pair( |
b32b8144 FG |
38 | basic_socket<Protocol BOOST_ASIO_SVC_TARG>& socket1, |
39 | basic_socket<Protocol BOOST_ASIO_SVC_TARG1>& socket2); | |
7c673cae FG |
40 | |
41 | /// Create a pair of connected sockets. | |
b32b8144 FG |
42 | template <typename Protocol BOOST_ASIO_SVC_TPARAM BOOST_ASIO_SVC_TPARAM1> |
43 | BOOST_ASIO_SYNC_OP_VOID connect_pair( | |
44 | basic_socket<Protocol BOOST_ASIO_SVC_TARG>& socket1, | |
45 | basic_socket<Protocol BOOST_ASIO_SVC_TARG1>& socket2, | |
7c673cae FG |
46 | boost::system::error_code& ec); |
47 | ||
b32b8144 | 48 | template <typename Protocol BOOST_ASIO_SVC_TPARAM BOOST_ASIO_SVC_TPARAM1> |
7c673cae | 49 | inline void connect_pair( |
b32b8144 FG |
50 | basic_socket<Protocol BOOST_ASIO_SVC_TARG>& socket1, |
51 | basic_socket<Protocol BOOST_ASIO_SVC_TARG1>& socket2) | |
7c673cae FG |
52 | { |
53 | boost::system::error_code ec; | |
54 | connect_pair(socket1, socket2, ec); | |
55 | boost::asio::detail::throw_error(ec, "connect_pair"); | |
56 | } | |
57 | ||
b32b8144 FG |
58 | template <typename Protocol BOOST_ASIO_SVC_TPARAM BOOST_ASIO_SVC_TPARAM1> |
59 | inline BOOST_ASIO_SYNC_OP_VOID connect_pair( | |
60 | basic_socket<Protocol BOOST_ASIO_SVC_TARG>& socket1, | |
61 | basic_socket<Protocol BOOST_ASIO_SVC_TARG1>& socket2, | |
7c673cae FG |
62 | boost::system::error_code& ec) |
63 | { | |
64 | // Check that this function is only being used with a UNIX domain socket. | |
65 | boost::asio::local::basic_endpoint<Protocol>* tmp | |
66 | = static_cast<typename Protocol::endpoint*>(0); | |
67 | (void)tmp; | |
68 | ||
69 | Protocol protocol; | |
70 | boost::asio::detail::socket_type sv[2]; | |
71 | if (boost::asio::detail::socket_ops::socketpair(protocol.family(), | |
72 | protocol.type(), protocol.protocol(), sv, ec) | |
73 | == boost::asio::detail::socket_error_retval) | |
b32b8144 | 74 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
7c673cae | 75 | |
b32b8144 FG |
76 | socket1.assign(protocol, sv[0], ec); |
77 | if (ec) | |
7c673cae FG |
78 | { |
79 | boost::system::error_code temp_ec; | |
80 | boost::asio::detail::socket_ops::state_type state[2] = { 0, 0 }; | |
81 | boost::asio::detail::socket_ops::close(sv[0], state[0], true, temp_ec); | |
82 | boost::asio::detail::socket_ops::close(sv[1], state[1], true, temp_ec); | |
b32b8144 | 83 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
7c673cae FG |
84 | } |
85 | ||
b32b8144 FG |
86 | socket2.assign(protocol, sv[1], ec); |
87 | if (ec) | |
7c673cae FG |
88 | { |
89 | boost::system::error_code temp_ec; | |
90 | socket1.close(temp_ec); | |
91 | boost::asio::detail::socket_ops::state_type state = 0; | |
92 | boost::asio::detail::socket_ops::close(sv[1], state, true, temp_ec); | |
b32b8144 | 93 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
7c673cae FG |
94 | } |
95 | ||
b32b8144 | 96 | BOOST_ASIO_SYNC_OP_VOID_RETURN(ec); |
7c673cae FG |
97 | } |
98 | ||
99 | } // namespace local | |
100 | } // namespace asio | |
101 | } // namespace boost | |
102 | ||
103 | #include <boost/asio/detail/pop_options.hpp> | |
104 | ||
105 | #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) | |
106 | // || defined(GENERATING_DOCUMENTATION) | |
107 | ||
108 | #endif // BOOST_ASIO_LOCAL_CONNECT_PAIR_HPP |