1 | // |
2 | // detail/reactive_socket_connect_op.hpp |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
4 | // |
5 | // Copyright (c) 2003-2015 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_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP |
12 | #define BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_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 | #include <boost/asio/detail/addressof.hpp> |
20 | #include <boost/asio/detail/bind_handler.hpp> |
21 | #include <boost/asio/detail/buffer_sequence_adapter.hpp> |
22 | #include <boost/asio/detail/fenced_block.hpp> |
23 | #include <boost/asio/detail/reactor_op.hpp> |
24 | #include <boost/asio/detail/socket_ops.hpp> |
25 | |
26 | #include <boost/asio/detail/push_options.hpp> |
27 | |
28 | namespace boost { |
29 | namespace asio { |
30 | namespace detail { |
31 | |
32 | class reactive_socket_connect_op_base : public reactor_op |
33 | { |
34 | public: |
35 | reactive_socket_connect_op_base(socket_type socket, func_type complete_func) |
36 | : reactor_op(&reactive_socket_connect_op_base::do_perform, complete_func), |
37 | socket_(socket) |
38 | { |
39 | } |
40 | |
41 | static bool do_perform(reactor_op* base) |
42 | { |
43 | reactive_socket_connect_op_base* o( |
44 | static_cast<reactive_socket_connect_op_base*>(base)); |
45 | |
46 | return socket_ops::non_blocking_connect(s: o->socket_, ec&: o->ec_); |
47 | } |
48 | |
49 | private: |
50 | socket_type socket_; |
51 | }; |
52 | |
53 | template <typename Handler> |
54 | class reactive_socket_connect_op : public reactive_socket_connect_op_base |
55 | { |
56 | public: |
57 | BOOST_ASIO_DEFINE_HANDLER_PTR(reactive_socket_connect_op); |
58 | |
59 | reactive_socket_connect_op(socket_type socket, Handler& handler) |
60 | : reactive_socket_connect_op_base(socket, |
61 | &reactive_socket_connect_op::do_complete), |
62 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)) |
63 | { |
64 | } |
65 | |
66 | static void do_complete(io_service_impl* owner, operation* base, |
67 | const boost::system::error_code& /*ec*/, |
68 | std::size_t /*bytes_transferred*/) |
69 | { |
70 | // Take ownership of the handler object. |
71 | reactive_socket_connect_op* o |
72 | (static_cast<reactive_socket_connect_op*>(base)); |
73 | ptr p = { boost::asio::detail::addressof(o->handler_), o, o }; |
74 | |
75 | BOOST_ASIO_HANDLER_COMPLETION((o)); |
76 | |
77 | // Make a copy of the handler so that the memory can be deallocated before |
78 | // the upcall is made. Even if we're not about to make an upcall, a |
79 | // sub-object of the handler may be the true owner of the memory associated |
80 | // with the handler. Consequently, a local copy of the handler is required |
81 | // to ensure that any owning sub-object remains valid until after we have |
82 | // deallocated the memory here. |
83 | detail::binder1<Handler, boost::system::error_code> |
84 | handler(o->handler_, o->ec_); |
85 | p.h = boost::asio::detail::addressof(handler.handler_); |
86 | p.reset(); |
87 | |
88 | // Make the upcall if required. |
89 | if (owner) |
90 | { |
91 | fenced_block b(fenced_block::half); |
92 | BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); |
93 | boost_asio_handler_invoke_helpers::invoke(handler, handler); |
94 | BOOST_ASIO_HANDLER_INVOCATION_END; |
95 | } |
96 | } |
97 | |
98 | private: |
99 | Handler handler_; |
100 | }; |
101 | |
102 | } // namespace detail |
103 | } // namespace asio |
104 | } // namespace boost |
105 | |
106 | #include <boost/asio/detail/pop_options.hpp> |
107 | |
108 | #endif // BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP |
109 | |