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7c673cae FG |
1 | // |
2 | // detail/win_iocp_socket_connect_op.hpp | |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
4 | // | |
92f5a8d4 | 5 | // Copyright (c) 2003-2019 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> | |
b32b8144 | 26 | #include <boost/asio/detail/memory.hpp> |
7c673cae FG |
27 | #include <boost/asio/detail/reactor_op.hpp> |
28 | #include <boost/asio/detail/socket_ops.hpp> | |
29 | #include <boost/asio/error.hpp> | |
30 | ||
31 | #include <boost/asio/detail/push_options.hpp> | |
32 | ||
33 | namespace boost { | |
34 | namespace asio { | |
35 | namespace detail { | |
36 | ||
37 | class win_iocp_socket_connect_op_base : public reactor_op | |
38 | { | |
39 | public: | |
40 | win_iocp_socket_connect_op_base(socket_type socket, func_type complete_func) | |
41 | : reactor_op(&win_iocp_socket_connect_op_base::do_perform, complete_func), | |
42 | socket_(socket), | |
43 | connect_ex_(false) | |
44 | { | |
45 | } | |
46 | ||
b32b8144 | 47 | static status do_perform(reactor_op* base) |
7c673cae FG |
48 | { |
49 | win_iocp_socket_connect_op_base* o( | |
50 | static_cast<win_iocp_socket_connect_op_base*>(base)); | |
51 | ||
b32b8144 FG |
52 | return socket_ops::non_blocking_connect( |
53 | o->socket_, o->ec_) ? done : not_done; | |
7c673cae FG |
54 | } |
55 | ||
56 | socket_type socket_; | |
57 | bool connect_ex_; | |
58 | }; | |
59 | ||
92f5a8d4 | 60 | template <typename Handler, typename IoExecutor> |
7c673cae FG |
61 | class win_iocp_socket_connect_op : public win_iocp_socket_connect_op_base |
62 | { | |
63 | public: | |
64 | BOOST_ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_connect_op); | |
65 | ||
92f5a8d4 TL |
66 | win_iocp_socket_connect_op(socket_type socket, |
67 | Handler& handler, const IoExecutor& io_ex) | |
7c673cae FG |
68 | : win_iocp_socket_connect_op_base(socket, |
69 | &win_iocp_socket_connect_op::do_complete), | |
92f5a8d4 TL |
70 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)), |
71 | io_executor_(io_ex) | |
7c673cae | 72 | { |
92f5a8d4 | 73 | handler_work<Handler, IoExecutor>::start(handler_, io_executor_); |
7c673cae FG |
74 | } |
75 | ||
b32b8144 | 76 | static void do_complete(void* owner, operation* base, |
7c673cae FG |
77 | const boost::system::error_code& result_ec, |
78 | std::size_t /*bytes_transferred*/) | |
79 | { | |
80 | boost::system::error_code ec(result_ec); | |
81 | ||
82 | // Take ownership of the operation object. | |
83 | win_iocp_socket_connect_op* o( | |
84 | static_cast<win_iocp_socket_connect_op*>(base)); | |
85 | ptr p = { boost::asio::detail::addressof(o->handler_), o, o }; | |
92f5a8d4 | 86 | handler_work<Handler, IoExecutor> w(o->handler_, o->io_executor_); |
7c673cae FG |
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 FG |
97 | |
98 | // Make a copy of the handler so that the memory can be deallocated before | |
99 | // the upcall is made. Even if we're not about to make an upcall, a | |
100 | // sub-object of the handler may be the true owner of the memory associated | |
101 | // with the handler. Consequently, a local copy of the handler is required | |
102 | // to ensure that any owning sub-object remains valid until after we have | |
103 | // deallocated the memory here. | |
104 | detail::binder1<Handler, boost::system::error_code> | |
105 | handler(o->handler_, ec); | |
106 | p.h = boost::asio::detail::addressof(handler.handler_); | |
107 | p.reset(); | |
108 | ||
109 | // Make the upcall if required. | |
110 | if (owner) | |
111 | { | |
112 | fenced_block b(fenced_block::half); | |
113 | BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); | |
b32b8144 | 114 | w.complete(handler, handler.handler_); |
7c673cae FG |
115 | BOOST_ASIO_HANDLER_INVOCATION_END; |
116 | } | |
117 | } | |
118 | ||
119 | private: | |
120 | Handler handler_; | |
92f5a8d4 | 121 | IoExecutor io_executor_; |
7c673cae FG |
122 | }; |
123 | ||
124 | } // namespace detail | |
125 | } // namespace asio | |
126 | } // namespace boost | |
127 | ||
128 | #include <boost/asio/detail/pop_options.hpp> | |
129 | ||
130 | #endif // defined(BOOST_ASIO_HAS_IOCP) | |
131 | ||
132 | #endif // BOOST_ASIO_DETAIL_WIN_IOCP_SOCKET_CONNECT_OP_HPP |