kea/src/lib/asiolink/udp_endpoint.h

// Copyright (C) 2011  Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

#ifndef __UDP_ENDPOINT_H
#define __UDP_ENDPOINT_H 1

#ifndef ASIO_HPP
#error "asio.hpp must be included before including this, see asiolink.h as to why"
#endif

#include <asiolink/io_endpoint.h>

namespace asiolink {

/// \brief The \c UDPEndpoint class is a concrete derived class of
/// \c IOEndpoint that represents an endpoint of a UDP packet.
///
/// Other notes about \c TCPEndpoint applies to this class, too.
class UDPEndpoint : public IOEndpoint {
public:
    ///
    /// \name Constructors and Destructor.
    ///
    //@{
    /// \brief Constructor from a pair of address and port.
    ///
    /// \param address The IP address of the endpoint.
    /// \param port The UDP port number of the endpoint.
    UDPEndpoint(const IOAddress& address, const unsigned short port) :
        asio_endpoint_placeholder_(
            new asio::ip::udp::endpoint(asio::ip::address::from_string(address.toText()),
                              port)),
        asio_endpoint_(*asio_endpoint_placeholder_)
    {}

    /// \brief Constructor from an ASIO UDP endpoint.
    ///
    /// This constructor is designed to be an efficient wrapper for the
    /// corresponding ASIO class, \c udp::endpoint.
    ///
    /// \param asio_endpoint The ASIO representation of the UDP endpoint.
    UDPEndpoint(const asio::ip::udp::endpoint& asio_endpoint) :
        asio_endpoint_placeholder_(NULL), asio_endpoint_(asio_endpoint)
    {}

    /// \brief The destructor.
    ~UDPEndpoint() { delete asio_endpoint_placeholder_; }
    //@}

    inline IOAddress getAddress() const {
        return (asio_endpoint_.address());
    }

    inline uint16_t getPort() const {
        return (asio_endpoint_.port());
    }

    inline short getProtocol() const {
        return (asio_endpoint_.protocol().protocol());
    }

    inline short getFamily() const {
        return (asio_endpoint_.protocol().family());
    }

    // This is not part of the exosed IOEndpoint API but allows
    // direct access to the ASIO implementation of the endpoint
    inline const asio::ip::udp::endpoint& getASIOEndpoint() const {
        return (asio_endpoint_);
    }

private:
    const asio::ip::udp::endpoint* asio_endpoint_placeholder_;
    const asio::ip::udp::endpoint& asio_endpoint_;
};

}      // namespace asiolink
#endif // __UDP_ENDPOINT_H