Use persistent (leveldb) storage

cmd/discosrv/types.go

@@ -0,0 +1,15 @@
+// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
+// All rights reserved. Use of this source code is governed by an MIT-style
+// license that can be found in the LICENSE file.
+
+package main
+
+type address struct {
+	ip   []byte
+	port uint16
+	seen int64 // epoch seconds
+}
+
+type addressList struct {
+	addresses []address
+}