return _socket;
}
+ void set_send_buffer_size (int size);
void connect (boost::asio::ip::tcp::endpoint);
void write (uint32_t n);
int _timeout;
boost::scoped_ptr<Digester> _read_digester;
boost::scoped_ptr<Digester> _write_digester;
+ boost::optional<int> _send_buffer_size;
};