Chris@16: //
Chris@16: // detail/socket_holder.hpp
Chris@16: // ~~~~~~~~~~~~~~~~~~~~~~~~
Chris@16: //
Chris@101: // Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@16: #ifndef BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP
Chris@16: #define BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: # pragma once
Chris@16: #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
Chris@16: 
Chris@16: #include <boost/asio/detail/config.hpp>
Chris@16: #include <boost/asio/detail/noncopyable.hpp>
Chris@16: #include <boost/asio/detail/socket_ops.hpp>
Chris@16: 
Chris@16: #include <boost/asio/detail/push_options.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace asio {
Chris@16: namespace detail {
Chris@16: 
Chris@16: // Implement the resource acquisition is initialisation idiom for sockets.
Chris@16: class socket_holder
Chris@16:   : private noncopyable
Chris@16: {
Chris@16: public:
Chris@16:   // Construct as an uninitialised socket.
Chris@16:   socket_holder()
Chris@16:     : socket_(invalid_socket)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Construct to take ownership of the specified socket.
Chris@16:   explicit socket_holder(socket_type s)
Chris@16:     : socket_(s)
Chris@16:   {
Chris@16:   }
Chris@16: 
Chris@16:   // Destructor.
Chris@16:   ~socket_holder()
Chris@16:   {
Chris@16:     if (socket_ != invalid_socket)
Chris@16:     {
Chris@16:       boost::system::error_code ec;
Chris@16:       socket_ops::state_type state = 0;
Chris@16:       socket_ops::close(socket_, state, true, ec);
Chris@16:     }
Chris@16:   }
Chris@16: 
Chris@16:   // Get the underlying socket.
Chris@16:   socket_type get() const
Chris@16:   {
Chris@16:     return socket_;
Chris@16:   }
Chris@16: 
Chris@16:   // Reset to an uninitialised socket.
Chris@16:   void reset()
Chris@16:   {
Chris@16:     if (socket_ != invalid_socket)
Chris@16:     {
Chris@16:       boost::system::error_code ec;
Chris@16:       socket_ops::state_type state = 0;
Chris@16:       socket_ops::close(socket_, state, true, ec);
Chris@16:       socket_ = invalid_socket;
Chris@16:     }
Chris@16:   }
Chris@16: 
Chris@16:   // Reset to take ownership of the specified socket.
Chris@16:   void reset(socket_type s)
Chris@16:   {
Chris@16:     reset();
Chris@16:     socket_ = s;
Chris@16:   }
Chris@16: 
Chris@16:   // Release ownership of the socket.
Chris@16:   socket_type release()
Chris@16:   {
Chris@16:     socket_type tmp = socket_;
Chris@16:     socket_ = invalid_socket;
Chris@16:     return tmp;
Chris@16:   }
Chris@16: 
Chris@16: private:
Chris@16:   // The underlying socket.
Chris@16:   socket_type socket_;
Chris@16: };
Chris@16: 
Chris@16: } // namespace detail
Chris@16: } // namespace asio
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/asio/detail/pop_options.hpp>
Chris@16: 
Chris@16: #endif // BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP