source: source/ariba/utility/addressing/port_address.hpp@ 6797

// port_address.hpp, created on 24.06.2009 by Sebastian Mies

#ifndef PORT_ADDRESS_HPP_
#define PORT_ADDRESS_HPP_

#include<string>
#include<cstdio>

#include<boost/tr1/functional.hpp>

#include "detail/address_convenience.hpp"

namespace ariba {
namespace addressing {

struct port_address_info {
        static const uint16_t type_id;
        static const std::string type_name;
};

/**
 * TODO: Doc
 *
 * @author Sebastian Mies <mies@tm.uka.de>
 */
template<class AddressInfo = port_address_info>
class port_address_tpl: public detail::address_convenience<
                port_address_tpl<AddressInfo> > {
private:
        uint16_t port;

public:
        typedef port_address_tpl<AddressInfo> self;

        port_address_tpl() {
                port = 0;
        }

        port_address_tpl( const port_address_tpl& copy ) : port(copy.port) {

        }

        port_address_tpl(const std::string& text) {
                assign( text );
        }

        port_address_tpl(const char* text) {
                assign( std::string(text) );
        }

        port_address_tpl(uint16_t port) : port(port) {

        }

        port_address_tpl(const uint8_t* bytes, size_t size) {
                assign( bytes, size );
        }

        //--- compare operations --------------------------------------------------

        /// implements comparison operators
        int compare_to(const self& rhs) const {
                return port - rhs.port;
        }

        //--- bytes representation ------------------------------------------------

        /// returns true, if this address has a fixed size in bytes
        bool is_bytes_size_static() const {
                return true;
        }

        /// returns the number of bytes used for serialization of this address
        size_t to_bytes_size() const {
                return 2;
        }

        /// converts this address to a binary representation
        void to_bytes(uint8_t* bytes) const {
                bytes[0] = port >> 8;
                bytes[1] = port & 0xFF;
        }

        /// Assigns an address using a bunch of bytes
        bool assign(const uint8_t* bytes, size_t size) {
                port = ((bytes[0] << 8) + bytes[1]);
                return false;
        }

        //--- text representation -------------------------------------------------

        /// convert address to a string that can be used to reconstruct the address
        std::string to_string() const {
                char str[8];
                sprintf(str, "%d", port);
                return std::string(str);
        }

        /// Assigns an address using a human-readable
        bool assign(const std::string& text) {
                unsigned int port_;
                sscanf(text.c_str(), "%d", &port_);
                if (port_ >= 0 && port_ <= 65535) {
                        port = (uint16_t) port_;
                        return false;
                }
                return true;
        }

        //--- assignment ----------------------------------------------------------

        /// Assigns an address
        bool assign(const self& rhs) {
                port = rhs.port;
                return false;
        }

        //--- address info --------------------------------------------------------

        /// returns the type name
        const std::string& type_name() const {
                return AddressInfo::type_name;
        }

        /// returns the type identifier
        const uint16_t type_id() const {
                return AddressInfo::type_id;
        }

        //--- conversions ---------------------------------------------------------

        uint16_t asio() const {
                return port;
        }

        void asio( uint16_t port ) {
                this->port = port;
        }

        uint16_t value() const {
                return port;
        }

        void value( uint16_t v ) {
                port  = v;
        }
};

typedef port_address_tpl<> port_address;

}} // namespace ariba::addressing

namespace boost {

template<class T>
struct hash<ariba::addressing::port_address_tpl<T> >: public std::unary_function<ariba::addressing::port_address_tpl<T>, std::size_t> {
        std::size_t operator()(const ariba::addressing::port_address_tpl<T>& ep) const {
                return hash_value(ep.value());
        }
};

}

#endif /* PORT_ADDRESS_HPP_ */