]>
Commit | Line | Data |
---|---|---|
7c673cae | 1 | // |
b32b8144 FG |
2 | // detail/win_iocp_wait_op.hpp |
3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
7c673cae | 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 | ||
b32b8144 FG |
11 | #ifndef BOOST_ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP |
12 | #define BOOST_ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP | |
7c673cae FG |
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/buffer_sequence_adapter.hpp> | |
24 | #include <boost/asio/detail/fenced_block.hpp> | |
25 | #include <boost/asio/detail/handler_alloc_helpers.hpp> | |
26 | #include <boost/asio/detail/handler_invoke_helpers.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 | ||
92f5a8d4 | 38 | template <typename Handler, typename IoExecutor> |
b32b8144 | 39 | class win_iocp_wait_op : public reactor_op |
7c673cae FG |
40 | { |
41 | public: | |
b32b8144 | 42 | BOOST_ASIO_DEFINE_HANDLER_PTR(win_iocp_wait_op); |
7c673cae | 43 | |
b32b8144 | 44 | win_iocp_wait_op(socket_ops::weak_cancel_token_type cancel_token, |
92f5a8d4 | 45 | Handler& handler, const IoExecutor& io_ex) |
b32b8144 FG |
46 | : reactor_op(&win_iocp_wait_op::do_perform, |
47 | &win_iocp_wait_op::do_complete), | |
7c673cae | 48 | cancel_token_(cancel_token), |
92f5a8d4 TL |
49 | handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)), |
50 | io_executor_(io_ex) | |
7c673cae | 51 | { |
92f5a8d4 | 52 | handler_work<Handler, IoExecutor>::start(handler_, io_executor_); |
7c673cae FG |
53 | } |
54 | ||
b32b8144 | 55 | static status do_perform(reactor_op*) |
7c673cae | 56 | { |
b32b8144 | 57 | return done; |
7c673cae FG |
58 | } |
59 | ||
b32b8144 | 60 | static void do_complete(void* owner, operation* base, |
7c673cae | 61 | const boost::system::error_code& result_ec, |
b32b8144 | 62 | std::size_t /*bytes_transferred*/) |
7c673cae FG |
63 | { |
64 | boost::system::error_code ec(result_ec); | |
65 | ||
66 | // Take ownership of the operation object. | |
b32b8144 | 67 | win_iocp_wait_op* o(static_cast<win_iocp_wait_op*>(base)); |
7c673cae | 68 | ptr p = { boost::asio::detail::addressof(o->handler_), o, o }; |
92f5a8d4 | 69 | handler_work<Handler, IoExecutor> w(o->handler_, o->io_executor_); |
7c673cae | 70 | |
b32b8144 | 71 | BOOST_ASIO_HANDLER_COMPLETION((*o)); |
7c673cae FG |
72 | |
73 | // The reactor may have stored a result in the operation object. | |
74 | if (o->ec_) | |
75 | ec = o->ec_; | |
76 | ||
77 | // Map non-portable errors to their portable counterparts. | |
78 | if (ec.value() == ERROR_NETNAME_DELETED) | |
79 | { | |
80 | if (o->cancel_token_.expired()) | |
81 | ec = boost::asio::error::operation_aborted; | |
82 | else | |
83 | ec = boost::asio::error::connection_reset; | |
84 | } | |
85 | else if (ec.value() == ERROR_PORT_UNREACHABLE) | |
86 | { | |
87 | ec = boost::asio::error::connection_refused; | |
88 | } | |
89 | ||
90 | // Make a copy of the handler so that the memory can be deallocated before | |
91 | // the upcall is made. Even if we're not about to make an upcall, a | |
92 | // sub-object of the handler may be the true owner of the memory associated | |
93 | // with the handler. Consequently, a local copy of the handler is required | |
94 | // to ensure that any owning sub-object remains valid until after we have | |
95 | // deallocated the memory here. | |
b32b8144 FG |
96 | detail::binder1<Handler, boost::system::error_code> |
97 | handler(o->handler_, ec); | |
7c673cae FG |
98 | p.h = boost::asio::detail::addressof(handler.handler_); |
99 | p.reset(); | |
100 | ||
101 | // Make the upcall if required. | |
102 | if (owner) | |
103 | { | |
104 | fenced_block b(fenced_block::half); | |
b32b8144 FG |
105 | BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_)); |
106 | w.complete(handler, handler.handler_); | |
7c673cae FG |
107 | BOOST_ASIO_HANDLER_INVOCATION_END; |
108 | } | |
109 | } | |
110 | ||
111 | private: | |
112 | socket_ops::weak_cancel_token_type cancel_token_; | |
113 | Handler handler_; | |
92f5a8d4 | 114 | IoExecutor io_executor_; |
7c673cae FG |
115 | }; |
116 | ||
117 | } // namespace detail | |
118 | } // namespace asio | |
119 | } // namespace boost | |
120 | ||
121 | #include <boost/asio/detail/pop_options.hpp> | |
122 | ||
123 | #endif // defined(BOOST_ASIO_HAS_IOCP) | |
124 | ||
b32b8144 | 125 | #endif // BOOST_ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP |