Adding nsync for NLSR
diff --git a/nsync/src/sync-full-state.h b/nsync/src/sync-full-state.h
new file mode 100644
index 0000000..28e0078
--- /dev/null
+++ b/nsync/src/sync-full-state.h
@@ -0,0 +1,79 @@
+/* -*- 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>
+ */
+
+#ifndef SYNC_FULL_STATE_H
+#define SYNC_FULL_STATE_H
+
+#include <ndn-cpp-dev/util/time.hpp>
+#include "sync-state.h"
+
+namespace Sync {
+
+class FullState;
+typedef boost::shared_ptr<FullState> FullStatePtr;
+typedef boost::shared_ptr<FullState> FullStateConstPtr;
+
+
+/**
+ * \ingroup sync
+ * @brief Cumulative SYNC state
+ */
+class FullState : public State
+{
+public:
+ /**
+ * @brief Default constructor
+ */
+ FullState ();
+ virtual ~FullState ();
+
+ /**
+ * @brief Get time period since last state update
+ *
+ * This value can be used to randomize reconciliation waiting time in SyncApp
+ */
+ ndn::time::Duration
+ getTimeFromLastUpdate () const;
+
+ /**
+ * @brief Obtain a read-only copy of the digest
+ *
+ * If m_digest is 0, then it is automatically created. On every update and removal, m_digest is reset to 0
+ */
+ DigestConstPtr
+ getDigest ();
+
+ // from State
+ virtual boost::tuple<bool/*inserted*/, bool/*updated*/, SeqNo/*oldSeqNo*/>
+ update (NameInfoConstPtr info, const SeqNo &seq);
+
+ virtual bool
+ remove (NameInfoConstPtr info);
+
+private:
+ ndn::time::Point m_lastUpdated; ///< @brief Time when state was updated last time
+ DigestPtr m_digest;
+};
+
+} // Sync
+
+#endif // SYNC_STATE_H