use shared_ptr for direct DatabaseLookup message

NetDbRequests.cpp

@@ -19,13 +19,13 @@ namespace data
 		return msg;
 	}	
 
-	I2NPMessage * RequestedDestination::CreateRequestMessage (const IdentHash& floodfill)
+	std::shared_ptr<I2NPMessage> RequestedDestination::CreateRequestMessage (const IdentHash& floodfill)
 	{
 		I2NPMessage * msg = i2p::CreateRouterInfoDatabaseLookupMsg (m_Destination, 
 			i2p::context.GetRouterInfo ().GetIdentHash () , 0, false, &m_ExcludedPeers);
 		m_ExcludedPeers.insert (floodfill);
 		m_CreationTime = i2p::util::GetSecondsSinceEpoch ();
-		return msg;
+		return ToSharedI2NPMessage (msg);
 	}	
 
 	void RequestedDestination::ClearExcludedPeers ()

NetDbRequests.h

@@ -29,7 +29,7 @@ namespace data
 			bool IsExcluded (const IdentHash& ident) const { return m_ExcludedPeers.count (ident); };
 			uint64_t GetCreationTime () const { return m_CreationTime; };
 			I2NPMessage * CreateRequestMessage (std::shared_ptr<const RouterInfo>, std::shared_ptr<const i2p::tunnel::InboundTunnel> replyTunnel);
-			I2NPMessage * CreateRequestMessage (const IdentHash& floodfill);
+			std::shared_ptr<I2NPMessage> CreateRequestMessage (const IdentHash& floodfill);
 			
 			void SetRequestComplete (const RequestComplete& requestComplete) { m_RequestComplete = requestComplete; };
 			bool IsRequestComplete () const { return m_RequestComplete != nullptr; };