Adding nsync for NLSR
diff --git a/nsync/src/sync-leaf.cc b/nsync/src/sync-leaf.cc
new file mode 100644
index 0000000..03e2217
--- /dev/null
+++ b/nsync/src/sync-leaf.cc
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2012 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Zhenkai Zhu <zhenkai@cs.ucla.edu>
+ * Chaoyi Bian <bcy@pku.edu.cn>
+ * Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "sync-leaf.h"
+
+namespace Sync {
+
+Leaf::Leaf (NameInfoConstPtr info, const SeqNo &seq)
+ : m_info (info)
+ , m_seq (seq)
+{
+}
+
+Leaf::~Leaf ()
+{
+}
+
+void
+Leaf::setSeq (const SeqNo &seq)
+{
+ m_seq = std::max (m_seq, seq);
+}
+
+} // Sync