// | |
// detail/socket_holder.hpp | |
// ~~~~~~~~~~~~~~~~~~~~~~~~ | |
// | |
// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com) | |
// | |
// Distributed under the Boost Software License, Version 1.0. (See accompanying | |
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
// | |
#ifndef BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP | |
#define BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP | |
#if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
# pragma once | |
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
#include <boost/asio/detail/config.hpp> | |
#include <boost/asio/detail/noncopyable.hpp> | |
#include <boost/asio/detail/socket_ops.hpp> | |
#include <boost/asio/detail/push_options.hpp> | |
namespace boost { | |
namespace asio { | |
namespace detail { | |
// Implement the resource acquisition is initialisation idiom for sockets. | |
class socket_holder | |
: private noncopyable | |
{ | |
public: | |
// Construct as an uninitialised socket. | |
socket_holder() | |
: socket_(invalid_socket) | |
{ | |
} | |
// Construct to take ownership of the specified socket. | |
explicit socket_holder(socket_type s) | |
: socket_(s) | |
{ | |
} | |
// Destructor. | |
~socket_holder() | |
{ | |
if (socket_ != invalid_socket) | |
{ | |
boost::system::error_code ec; | |
socket_ops::state_type state = 0; | |
socket_ops::close(socket_, state, true, ec); | |
} | |
} | |
// Get the underlying socket. | |
socket_type get() const | |
{ | |
return socket_; | |
} | |
// Reset to an uninitialised socket. | |
void reset() | |
{ | |
if (socket_ != invalid_socket) | |
{ | |
boost::system::error_code ec; | |
socket_ops::state_type state = 0; | |
socket_ops::close(socket_, state, true, ec); | |
socket_ = invalid_socket; | |
} | |
} | |
// Reset to take ownership of the specified socket. | |
void reset(socket_type s) | |
{ | |
reset(); | |
socket_ = s; | |
} | |
// Release ownership of the socket. | |
socket_type release() | |
{ | |
socket_type tmp = socket_; | |
socket_ = invalid_socket; | |
return tmp; | |
} | |
private: | |
// The underlying socket. | |
socket_type socket_; | |
}; | |
} // namespace detail | |
} // namespace asio | |
} // namespace boost | |
#include <boost/asio/detail/pop_options.hpp> | |
#endif // BOOST_ASIO_DETAIL_SOCKET_HOLDER_HPP |