node: customizable protocol and service stacks

p2p/discover/table.go

@@ -90,12 +90,11 @@ type transport interface {
 // that was most recently active is the first element in entries.
 type bucket struct{ entries []*Node }
 
-func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string) *Table {
+func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string) (*Table, error) {
 	// If no node database was given, use an in-memory one
 	db, err := newNodeDB(nodeDBPath, Version, ourID)
 	if err != nil {
-		glog.V(logger.Warn).Infoln("Failed to open node database:", err)
-		db, _ = newNodeDB("", Version, ourID)
+		return nil, err
 	}
 	tab := &Table{
 		net:        t,
@@ -114,7 +113,7 @@ func newTable(t transport, ourID NodeID, ourAddr *net.UDPAddr, nodeDBPath string
 		tab.buckets[i] = new(bucket)
 	}
 	go tab.refreshLoop()
-	return tab
+	return tab, nil
 }
 
 // Self returns the local node.