rib: Perform FIB updates before modifying RIB

refs: #1941

Change-Id: I1457f71ddd1c120daae48308d5cc02a7c0ecf93d
diff --git a/rib/rib-update-batch.cpp b/rib/rib-update-batch.cpp
new file mode 100644
index 0000000..e639ae3
--- /dev/null
+++ b/rib/rib-update-batch.cpp
@@ -0,0 +1,63 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2014-2015,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
+ *
+ * This file is part of NFD (Named Data Networking Forwarding Daemon).
+ * See AUTHORS.md for complete list of NFD authors and contributors.
+ *
+ * NFD 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.
+ *
+ * NFD 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
+ * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "rib-update-batch.hpp"
+
+namespace nfd {
+namespace rib {
+
+RibUpdateBatch::RibUpdateBatch(uint64_t faceId)
+  : m_faceId(faceId)
+{
+}
+
+void
+RibUpdateBatch::add(const RibUpdate& update)
+{
+  BOOST_ASSERT(m_faceId == update.getRoute().faceId);
+
+  m_updates.push_back(update);
+}
+
+RibUpdateBatch::const_iterator
+RibUpdateBatch::begin() const
+{
+  return m_updates.begin();
+}
+
+RibUpdateBatch::const_iterator
+RibUpdateBatch::end() const
+{
+  return m_updates.end();
+}
+
+size_t
+RibUpdateBatch::size() const
+{
+  return m_updates.size();
+}
+
+} // namespace rib
+} // namespace nfd