utils: Adding content store trace helper class (thanks to Xiaoyan Hu)
diff --git a/utils/tracers/ndn-cs-tracer.cc b/utils/tracers/ndn-cs-tracer.cc
new file mode 100644
index 0000000..742961f
--- /dev/null
+++ b/utils/tracers/ndn-cs-tracer.cc
@@ -0,0 +1,73 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 UCLA
+ *
+ * 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "ndn-cs-tracer.h"
+#include "ns3/node.h"
+#include "ns3/packet.h"
+#include "ns3/config.h"
+#include "ns3/names.h"
+#include "ns3/callback.h"
+
+#include <boost/lexical_cast.hpp>
+
+#include "ns3/ndn-interest.h"
+#include "ns3/ndn-content-object.h"
+
+using namespace std;
+
+namespace ns3 {
+namespace ndn {
+
+CsTracer::CsTracer (Ptr<Node> node)
+: m_nodePtr (node)
+{
+ m_node = boost::lexical_cast<string> (m_nodePtr->GetId ());
+
+ Connect ();
+
+ string name = Names::FindName (node);
+ if (!name.empty ())
+ {
+ m_node = name;
+ }
+}
+
+CsTracer::CsTracer (const std::string &node)
+: m_node (node)
+{
+ Connect ();
+}
+
+CsTracer::~CsTracer ()
+{
+};
+
+
+void
+CsTracer::Connect ()
+{
+ Config::Connect ("/NodeList/"+m_node+"/$ns3::ndn::ContentStore/CacheHits",
+ MakeCallback (&CsTracer::CacheHits, this));
+ Config::Connect ("/NodeList/"+m_node+"/$ns3::ndn::ContentStore/CacheMisses",
+ MakeCallback (&CsTracer::CacheMisses, this));
+}
+
+} // namespace ndn
+} // namespace ns3