	public:
		int64_t sn;
		int roleid;
		unsigned int localsid;
		enum { PROTOCOL_TYPE = PROTOCOL_WEBTRADEPRECANCELPOST };
	public:
		WebTradePreCancelPost() { type = PROTOCOL_WEBTRADEPRECANCELPOST; }
		WebTradePreCancelPost(void*) : Protocol(PROTOCOL_WEBTRADEPRECANCELPOST) { }
		WebTradePreCancelPost (int64_t l_sn,int l_roleid,unsigned int l_localsid)
			 : sn(l_sn),roleid(l_roleid),localsid(l_localsid)
		{
			type = PROTOCOL_WEBTRADEPRECANCELPOST;
		}

		WebTradePreCancelPost(const WebTradePreCancelPost &rhs)
			: Protocol(rhs),sn(rhs.sn),roleid(rhs.roleid),localsid(rhs.localsid) { }

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

		OctetsStream& marshal(OctetsStream & os) const
		{
			os << sn;
			os << roleid;
			os << localsid;
			return os;
		}

		const OctetsStream& unmarshal(const OctetsStream &os)
		{
			os >> sn;
			os >> roleid;
			os >> localsid;
			return os;
		}

		int PriorPolicy( ) const { return 1; }

		bool SizePolicy(size_t size) const { return size <= 32; }
