func loadTable() error {
if *tableFileName == "" {
return nil
}
f, err := os.Open(*tableFileName)
if os.IsNotExist(err) {
return nil
}
if err != nil {
return fmt.Errorf("error opening table file: %s", err)
}
defer f.Close()
added := 0
for {
b := make([]byte, krpc.CompactIPv4NodeInfoLen)
_, err := io.ReadFull(f, b)
if err == io.EOF {
break
}
if err != nil {
return fmt.Errorf("error reading table file: %s", err)
}
var ni krpc.NodeInfo
err = ni.UnmarshalCompactIPv4(b)
if err != nil {
return fmt.Errorf("error unmarshaling compact node info: %s", err)
}
s.AddNode(ni)
added++
}
log.Printf("loaded %d nodes from table file", added)
return nil
}
