	public:
		char challenge_algo;
		enum { PROTOCOL_TYPE = PROTOCOL_ANNOUNCECHALLENGEALGO };
	public:
		AnnounceChallengeAlgo() { type = PROTOCOL_ANNOUNCECHALLENGEALGO; }
		AnnounceChallengeAlgo(void*) : Protocol(PROTOCOL_ANNOUNCECHALLENGEALGO) { }
		AnnounceChallengeAlgo (char l_challenge_algo)
			 : challenge_algo(l_challenge_algo)
		{
			type = PROTOCOL_ANNOUNCECHALLENGEALGO;
		}

		AnnounceChallengeAlgo(const AnnounceChallengeAlgo &rhs)
			: Protocol(rhs),challenge_algo(rhs.challenge_algo) { }

		GNET::Protocol *Clone() const { return new AnnounceChallengeAlgo(*this); }

		OctetsStream& marshal(OctetsStream & os) const
		{
			os << challenge_algo;
			return os;
		}

		const OctetsStream& unmarshal(const OctetsStream &os)
		{
			os >> challenge_algo;
			return os;
		}

		int PriorPolicy( ) const { return 1; }

		bool SizePolicy(size_t size) const { return size <= 16; }
