//

// unicast.hpp

// ~~~~~~~~~~~

//

// Copyright (c) 2003-2008 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_IP_UNICAST_HPP

#define BOOST_ASIO_IP_UNICAST_HPP



#if defined(_MSC_VER) && (_MSC_VER >= 1200)

# pragma once

#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)



#include <boost/asio/detail/push_options.hpp>



#include <boost/asio/detail/push_options.hpp>

#include <cstddef>

#include <boost/config.hpp>

#include <boost/asio/detail/pop_options.hpp>



#include <boost/asio/ip/detail/socket_option.hpp>



namespace boost {

namespace asio {

namespace ip {

namespace unicast {



/// Socket option for time-to-live associated with outgoing unicast packets.

/**

 * Implements the IPPROTO_IP/IP_UNICAST_TTL socket option.

 *

 * @par Examples

 * Setting the option:

 * @code

 * boost::asio::ip::udp::socket socket(io_service); 

 * ...

 * boost::asio::ip::unicast::hops option(4);

 * socket.set_option(option);

 * @endcode

 *

 * @par

 * Getting the current option value:

 * @code

 * boost::asio::ip::udp::socket socket(io_service); 

 * ...

 * boost::asio::ip::unicast::hops option;

 * socket.get_option(option);

 * int ttl = option.value();

 * @endcode

 *

 * @par Concepts:

 * GettableSocketOption, SettableSocketOption.

 */

#if defined(GENERATING_DOCUMENTATION)

typedef implementation_defined hops;

#else

typedef boost::asio::ip::detail::socket_option::unicast_hops<

  IPPROTO_IP, IP_TTL, IPPROTO_IPV6, IPV6_UNICAST_HOPS> hops;

#endif



} // namespace unicast

} // namespace ip

} // namespace asio

} // namespace boost



#include <boost/asio/detail/pop_options.hpp>



#endif // BOOST_ASIO_IP_UNICAST_HPP

