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1 | // |
2 | // detail/reactive_socket_connect_op.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
11fdf7f2 | 5 | // Copyright (c) 2003-2018 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_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> | |
7c673cae FG |
19 | #include <boost/asio/detail/bind_handler.hpp> |
20 | #include <boost/asio/detail/buffer_sequence_adapter.hpp> | |
21 | #include <boost/asio/detail/fenced_block.hpp> | |
b32b8144 | 22 | #include <boost/asio/detail/memory.hpp> |
7c673cae FG |
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 | ||
b32b8144 | 41 | static status do_perform(reactor_op* base) |
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42 | { |
43 | reactive_socket_connect_op_base* o( | |
44 | static_cast<reactive_socket_connect_op_base*>(base)); | |
45 | ||
b32b8144 FG |
46 | status result = socket_ops::non_blocking_connect( |
47 | o->socket_, o->ec_) ? done : not_done; | |
48 | ||
49 | BOOST_ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_connect", o->ec_)); | |
50 | ||
51 | return result; | |
7c673cae FG |
52 | } |
53 | ||
54 | private: | |
55 | socket_type socket_; | |
56 | }; | |
57 | ||
58 | template <typename Handler> | |
59 | class reactive_socket_connect_op : public reactive_socket_connect_op_base | |
60 | { | |
61 | public: | |
62 | BOOST_ASIO_DEFINE_HANDLER_PTR(reactive_socket_connect_op); | |
63 | ||
64 | reactive_socket_connect_op(socket_type socket, Handler& handler) | |
65 | : reactive_socket_connect_op_base(socket, | |
66 | &reactive_socket_connect_op::do_complete), | |
67 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)) | |
68 | { | |
b32b8144 | 69 | handler_work<Handler>::start(handler_); |
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70 | } |
71 | ||
b32b8144 | 72 | static void do_complete(void* owner, operation* base, |
7c673cae FG |
73 | const boost::system::error_code& /*ec*/, |
74 | std::size_t /*bytes_transferred*/) | |
75 | { | |
76 | // Take ownership of the handler object. | |
77 | reactive_socket_connect_op* o | |
78 | (static_cast<reactive_socket_connect_op*>(base)); | |
79 | ptr p = { boost::asio::detail::addressof(o->handler_), o, o }; | |
b32b8144 | 80 | handler_work<Handler> w(o->handler_); |
7c673cae | 81 | |
b32b8144 | 82 | BOOST_ASIO_HANDLER_COMPLETION((*o)); |
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83 | |
84 | // Make a copy of the handler so that the memory can be deallocated before | |
85 | // the upcall is made. Even if we're not about to make an upcall, a | |
86 | // sub-object of the handler may be the true owner of the memory associated | |
87 | // with the handler. Consequently, a local copy of the handler is required | |
88 | // to ensure that any owning sub-object remains valid until after we have | |
89 | // deallocated the memory here. | |
90 | detail::binder1<Handler, boost::system::error_code> | |
91 | handler(o->handler_, o->ec_); | |
92 | p.h = boost::asio::detail::addressof(handler.handler_); | |
93 | p.reset(); | |
94 | ||
95 | // Make the upcall if required. | |
96 | if (owner) | |
97 | { | |
98 | fenced_block b(fenced_block::half); | |
99 | BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); | |
b32b8144 | 100 | w.complete(handler, handler.handler_); |
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101 | BOOST_ASIO_HANDLER_INVOCATION_END; |
102 | } | |
103 | } | |
104 | ||
105 | private: | |
106 | Handler handler_; | |
107 | }; | |
108 | ||
109 | } // namespace detail | |
110 | } // namespace asio | |
111 | } // namespace boost | |
112 | ||
113 | #include <boost/asio/detail/pop_options.hpp> | |
114 | ||
115 | #endif // BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP |