mirror of
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119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
//
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// detail/reactive_socket_connect_op.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2019 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
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#define BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/config.hpp>
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#include <boost/asio/detail/bind_handler.hpp>
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#include <boost/asio/detail/buffer_sequence_adapter.hpp>
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#include <boost/asio/detail/fenced_block.hpp>
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#include <boost/asio/detail/memory.hpp>
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#include <boost/asio/detail/reactor_op.hpp>
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#include <boost/asio/detail/socket_ops.hpp>
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#include <boost/asio/detail/push_options.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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class reactive_socket_connect_op_base : public reactor_op
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{
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public:
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reactive_socket_connect_op_base(socket_type socket, func_type complete_func)
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: reactor_op(&reactive_socket_connect_op_base::do_perform, complete_func),
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socket_(socket)
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{
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}
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static status do_perform(reactor_op* base)
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{
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reactive_socket_connect_op_base* o(
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static_cast<reactive_socket_connect_op_base*>(base));
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status result = socket_ops::non_blocking_connect(
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o->socket_, o->ec_) ? done : not_done;
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BOOST_ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_connect", o->ec_));
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return result;
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}
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private:
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socket_type socket_;
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};
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template <typename Handler, typename IoExecutor>
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class reactive_socket_connect_op : public reactive_socket_connect_op_base
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{
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public:
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BOOST_ASIO_DEFINE_HANDLER_PTR(reactive_socket_connect_op);
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reactive_socket_connect_op(socket_type socket,
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Handler& handler, const IoExecutor& io_ex)
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: reactive_socket_connect_op_base(socket,
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&reactive_socket_connect_op::do_complete),
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handler_(BOOST_ASIO_MOVE_CAST(Handler)(handler)),
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io_executor_(io_ex)
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{
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handler_work<Handler, IoExecutor>::start(handler_, io_executor_);
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}
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static void do_complete(void* owner, operation* base,
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const boost::system::error_code& /*ec*/,
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std::size_t /*bytes_transferred*/)
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{
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// Take ownership of the handler object.
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reactive_socket_connect_op* o
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(static_cast<reactive_socket_connect_op*>(base));
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ptr p = { boost::asio::detail::addressof(o->handler_), o, o };
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handler_work<Handler, IoExecutor> w(o->handler_, o->io_executor_);
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BOOST_ASIO_HANDLER_COMPLETION((*o));
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// Make a copy of the handler so that the memory can be deallocated before
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// the upcall is made. Even if we're not about to make an upcall, a
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// sub-object of the handler may be the true owner of the memory associated
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// with the handler. Consequently, a local copy of the handler is required
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// to ensure that any owning sub-object remains valid until after we have
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// deallocated the memory here.
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detail::binder1<Handler, boost::system::error_code>
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handler(o->handler_, o->ec_);
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p.h = boost::asio::detail::addressof(handler.handler_);
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p.reset();
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// Make the upcall if required.
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if (owner)
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{
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fenced_block b(fenced_block::half);
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BOOST_ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
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w.complete(handler, handler.handler_);
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BOOST_ASIO_HANDLER_INVOCATION_END;
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}
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}
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private:
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Handler handler_;
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IoExecutor io_executor_;
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};
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // BOOST_ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
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