core: Add node module files
Change-Id: Ie8da970263efafafc45909d77cacaf661804fae7
diff --git a/core/node.hpp b/core/node.hpp
new file mode 100644
index 0000000..be2ed92
--- /dev/null
+++ b/core/node.hpp
@@ -0,0 +1,107 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014, Regents of the University of California
+ *
+ * This file is part of NSL (NDN Signature Logger).
+ * See AUTHORS.md for complete list of NSL authors and contributors.
+ *
+ * NSL is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NSL 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
+ * NSL, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @author Peizhen Guo <patrick.guopz@gmail.com>
+ */
+
+#ifndef NLS_CORE_NODE_HPP
+#define NLS_CORE_NODE_HPP
+#include <stddef.h>
+#include <time.h>
+
+#include <ndn-cxx/util/crypto.hpp>
+
+namespace nsl {
+
+class Index
+{
+public:
+ Index()
+ {
+ }
+
+ Index(const Index& idx)
+ : number(idx.number),
+ level(idx.level)
+ {
+ }
+
+ bool operator<(const Index& other) const
+ {
+ if (number < other.number)
+ {
+ return true;
+ }
+ else if (number == other.number)
+ {
+ return level < other.level;
+ }
+ else
+ {
+ return false;
+ }
+
+ }
+
+public:
+ uint64_t number;
+ uint64_t level;
+};
+
+
+class Node
+{
+public:
+
+ Node()
+ {
+ }
+
+
+ Node(uint64_t sequenceNumber, uint64_t level, time_t timestamp);
+
+
+ ~Node()
+ {
+ }
+
+
+ const Index&
+ getIndex() const;
+
+
+ time_t
+ getTimestamp() const;
+
+
+ void
+ setHash(ndn::ConstBufferPtr digest);
+
+
+ ndn::ConstBufferPtr
+ getHash() const;
+
+private:
+ ndn::ConstBufferPtr m_hash;
+ Index m_index; // Node index.number starts from 0 (the index of current root)
+ time_t m_timeStamp;
+};
+
+} // namespace nsl
+
+#endif // NLS_CORE_NODE_HPP