request LeaseSet from 3 floodfills

NetDb.cpp

@@ -335,19 +335,25 @@ namespace data
 				if (inbound)
 				{
 					RequestedDestination * dest = CreateRequestedDestination (destination, isLeaseSet);
-					auto floodfill = GetClosestFloodfill (destination, dest->GetExcludedPeers ());
-					if (floodfill)
+					std::vector<i2p::tunnel::TunnelMessageBlock> msgs;
+					// request 3 closests floodfills
+					for (int i = 0; i < 3; i++)
+					{	
+						auto floodfill = GetClosestFloodfill (destination, dest->GetExcludedPeers ());
+						if (floodfill)
+						{		
+							// DatabaseLookup message
+							msgs.push_back (i2p::tunnel::TunnelMessageBlock 
+								{ 
+									i2p::tunnel::eDeliveryTypeRouter,
+									floodfill->GetIdentHash (), 0,
+									dest->CreateRequestMessage (floodfill, inbound)
+								});	
+						}	
+					}
+					if (msgs.size () > 0)
 					{	
-						std::vector<i2p::tunnel::TunnelMessageBlock> msgs;
-						// DatabaseLookup message
 						dest->SetLastOutboundTunnel (outbound);
-						msgs.push_back (i2p::tunnel::TunnelMessageBlock 
-							{ 
-								i2p::tunnel::eDeliveryTypeRouter,
-								floodfill->GetIdentHash (), 0,
-								dest->CreateRequestMessage (floodfill, inbound)
-							});	
-				
 						outbound->SendTunnelDataMsg (msgs);	
 					}	
 					else

Streaming.cpp

@@ -409,7 +409,7 @@ namespace stream
 		}	
 		Sign (buf, size, buf+ size);
 		size += 40; // signature
-
+		LogPrint ("Local LeaseSet of ", tunnels.size (), " leases created");
 		m->len += size + sizeof (I2NPDatabaseStoreMsg);
 		FillI2NPMessageHeader (m, eI2NPDatabaseStore);
 		return m;

Tunnel.cpp

@@ -131,6 +131,7 @@ namespace tunnel
 	
 	void InboundTunnel::HandleTunnelDataMsg (I2NPMessage * msg)
 	{
+		if (IsFailed ()) SetFailed (false); // incoming messages means a tunnel is alive			
 		msg->from = this;
 		EncryptTunnelMsg (msg);
 		m_Endpoint.HandleDecryptedTunnelDataMsg (msg);