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100 lines
2.1 KiB
100 lines
2.1 KiB
// |
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// detail/socket_holder.hpp |
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// ~~~~~~~~~~~~~~~~~~~~~~~~ |
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// |
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// Copyright (c) 2003-2011 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_SOCKET_HOLDER_HPP |
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#define BOOST_ASIO_DETAIL_SOCKET_HOLDER_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/noncopyable.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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// Implement the resource acquisition is initialisation idiom for sockets. |
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class socket_holder |
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: private noncopyable |
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{ |
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public: |
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// Construct as an uninitialised socket. |
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socket_holder() |
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: socket_(invalid_socket) |
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{ |
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} |
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// Construct to take ownership of the specified socket. |
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explicit socket_holder(socket_type s) |
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: socket_(s) |
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{ |
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} |
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// Destructor. |
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~socket_holder() |
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{ |
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if (socket_ != invalid_socket) |
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{ |
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boost::system::error_code ec; |
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socket_ops::state_type state = 0; |
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socket_ops::close(socket_, state, true, ec); |
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} |
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} |
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// Get the underlying socket. |
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socket_type get() const |
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{ |
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return socket_; |
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} |
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// Reset to an uninitialised socket. |
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void reset() |
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{ |
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if (socket_ != invalid_socket) |
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{ |
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boost::system::error_code ec; |
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socket_ops::state_type state = 0; |
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socket_ops::close(socket_, state, true, ec); |
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socket_ = invalid_socket; |
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} |
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} |
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// Reset to take ownership of the specified socket. |
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void reset(socket_type s) |
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{ |
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reset(); |
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socket_ = s; |
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} |
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// Release ownership of the socket. |
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socket_type release() |
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{ |
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socket_type tmp = socket_; |
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socket_ = invalid_socket; |
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return tmp; |
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} |
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private: |
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// The underlying socket. |
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socket_type socket_; |
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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_SOCKET_HOLDER_HPP
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