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7c673cae FG |
1 | // |
2 | // detail/win_iocp_socket_connect_op.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
f67539c2 | 5 | // Copyright (c) 2003-2020 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_WIN_IOCP_SOCKET_CONNECT_OP_HPP | |
12 | #define BOOST_ASIO_DETAIL_WIN_IOCP_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 | ||
20 | #if defined(BOOST_ASIO_HAS_IOCP) | |
21 | ||
7c673cae FG |
22 | #include <boost/asio/detail/bind_handler.hpp> |
23 | #include <boost/asio/detail/fenced_block.hpp> | |
24 | #include <boost/asio/detail/handler_alloc_helpers.hpp> | |
25 | #include <boost/asio/detail/handler_invoke_helpers.hpp> | |
20effc67 | 26 | #include <boost/asio/detail/handler_work.hpp> |
b32b8144 | 27 | #include <boost/asio/detail/memory.hpp> |
7c673cae FG |
28 | #include <boost/asio/detail/reactor_op.hpp> |
29 | #include <boost/asio/detail/socket_ops.hpp> | |
30 | #include <boost/asio/error.hpp> | |
31 | ||
32 | #include <boost/asio/detail/push_options.hpp> | |
33 | ||
34 | namespace boost { | |
35 | namespace asio { | |
36 | namespace detail { | |
37 | ||
38 | class win_iocp_socket_connect_op_base : public reactor_op | |
39 | { | |
40 | public: | |
41 | win_iocp_socket_connect_op_base(socket_type socket, func_type complete_func) | |
20effc67 TL |
42 | : reactor_op(boost::system::error_code(), |
43 | &win_iocp_socket_connect_op_base::do_perform, complete_func), | |
7c673cae FG |
44 | socket_(socket), |
45 | connect_ex_(false) | |
46 | { | |
47 | } | |
48 | ||
b32b8144 | 49 | static status do_perform(reactor_op* base) |
7c673cae FG |
50 | { |
51 | win_iocp_socket_connect_op_base* o( | |
52 | static_cast<win_iocp_socket_connect_op_base*>(base)); | |
53 | ||
b32b8144 FG |
54 | return socket_ops::non_blocking_connect( |
55 | o->socket_, o->ec_) ? done : not_done; | |
7c673cae FG |
56 | } |
57 | ||
58 | socket_type socket_; | |
59 | bool connect_ex_; | |
60 | }; | |
61 | ||
92f5a8d4 | 62 | template <typename Handler, typename IoExecutor> |
7c673cae FG |
63 | class win_iocp_socket_connect_op : public win_iocp_socket_connect_op_base |
64 | { | |
65 | public: | |
66 | BOOST_ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_connect_op); | |
67 | ||
92f5a8d4 TL |
68 | win_iocp_socket_connect_op(socket_type socket, |
69 | Handler& handler, const IoExecutor& io_ex) | |
7c673cae FG |
70 | : win_iocp_socket_connect_op_base(socket, |
71 | &win_iocp_socket_connect_op::do_complete), | |
92f5a8d4 | 72 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)), |
20effc67 | 73 | work_(handler_, io_ex) |
7c673cae FG |
74 | { |
75 | } | |
76 | ||
b32b8144 | 77 | static void do_complete(void* owner, operation* base, |
7c673cae FG |
78 | const boost::system::error_code& result_ec, |
79 | std::size_t /*bytes_transferred*/) | |
80 | { | |
81 | boost::system::error_code ec(result_ec); | |
82 | ||
83 | // Take ownership of the operation object. | |
84 | win_iocp_socket_connect_op* o( | |
85 | static_cast<win_iocp_socket_connect_op*>(base)); | |
86 | ptr p = { boost::asio::detail::addressof(o->handler_), o, o }; | |
87 | ||
88 | if (owner) | |
89 | { | |
90 | if (o->connect_ex_) | |
91 | socket_ops::complete_iocp_connect(o->socket_, ec); | |
92 | else | |
93 | ec = o->ec_; | |
94 | } | |
95 | ||
b32b8144 | 96 | BOOST_ASIO_HANDLER_COMPLETION((*o)); |
7c673cae | 97 | |
20effc67 TL |
98 | // Take ownership of the operation's outstanding work. |
99 | handler_work<Handler, IoExecutor> w( | |
100 | BOOST_ASIO_MOVE_CAST2(handler_work<Handler, IoExecutor>)( | |
101 | o->work_)); | |
102 | ||
7c673cae FG |
103 | // Make a copy of the handler so that the memory can be deallocated before |
104 | // the upcall is made. Even if we're not about to make an upcall, a | |
105 | // sub-object of the handler may be the true owner of the memory associated | |
106 | // with the handler. Consequently, a local copy of the handler is required | |
107 | // to ensure that any owning sub-object remains valid until after we have | |
108 | // deallocated the memory here. | |
109 | detail::binder1<Handler, boost::system::error_code> | |
110 | handler(o->handler_, ec); | |
111 | p.h = boost::asio::detail::addressof(handler.handler_); | |
112 | p.reset(); | |
113 | ||
114 | // Make the upcall if required. | |
115 | if (owner) | |
116 | { | |
117 | fenced_block b(fenced_block::half); | |
118 | BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); | |
b32b8144 | 119 | w.complete(handler, handler.handler_); |
7c673cae FG |
120 | BOOST_ASIO_HANDLER_INVOCATION_END; |
121 | } | |
122 | } | |
123 | ||
124 | private: | |
125 | Handler handler_; | |
20effc67 | 126 | handler_work<Handler, IoExecutor> work_; |
7c673cae FG |
127 | }; |
128 | ||
129 | } // namespace detail | |
130 | } // namespace asio | |
131 | } // namespace boost | |
132 | ||
133 | #include <boost/asio/detail/pop_options.hpp> | |
134 | ||
135 | #endif // defined(BOOST_ASIO_HAS_IOCP) | |
136 | ||
137 | #endif // BOOST_ASIO_DETAIL_WIN_IOCP_SOCKET_CONNECT_OP_HPP |