utils: Adding some NDN network-layer rate tracers
diff --git a/utils/tracers/ndn-l3-aggregate-tracer.cc b/utils/tracers/ndn-l3-aggregate-tracer.cc
new file mode 100644
index 0000000..1280ede
--- /dev/null
+++ b/utils/tracers/ndn-l3-aggregate-tracer.cc
@@ -0,0 +1,193 @@
+/* -*- 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-l3-aggregate-tracer.h"
+
+#include "ns3/node.h"
+#include "ns3/packet.h"
+#include "ns3/config.h"
+#include "ns3/callback.h"
+#include "ns3/ndn-app.h"
+#include "ns3/ndn-face.h"
+#include "ns3/ndn-interest.h"
+#include "ns3/ndn-content-object.h"
+
+namespace ns3 {
+namespace ndn {
+
+L3AggregateTracer::L3AggregateTracer (Ptr<Node> node)
+: L3Tracer (node)
+{
+  Reset ();
+}
+
+L3AggregateTracer::L3AggregateTracer (const std::string &node)
+: L3Tracer (node)
+{
+  Reset ();
+}
+
+L3AggregateTracer::~L3AggregateTracer ()
+{
+};
+
+void
+L3AggregateTracer::Reset ()
+{
+  m_packets.Reset ();
+  m_bytes.Reset ();
+}
+
+
+void
+L3AggregateTracer::PrintHeader (std::ostream &os) const
+{
+  os << "Node" << "\t"
+     << "InInterests" << "\t"
+     << "OutInterests" << "\t"
+     << "DropInterests" << "\t"
+    
+     << "InNacks" << "\t"
+     << "OutNacks" << "\t"
+     << "DropNacks" << "\t"
+    
+     << "InData" << "\t"
+     << "OutData" << "\t"
+     << "DropData" << "\t"
+    
+     << "InInterestsBytes" << "\t"
+     << "OutInterestsBytes" << "\t"
+     << "DropInterestsBytes" << "\t"
+    
+     << "InNacksBytes" << "\t"
+     << "OutNacksBytes" << "\t"
+     << "DropNacksBytes" << "\t"
+    
+     << "InDataBytes" << "\t"
+     << "OutDataBytes" << "\t"
+     << "DropDataBytes";
+}
+
+void
+L3AggregateTracer::Print (std::ostream &os) const
+{
+  os << m_node << "\t"
+     << m_packets.m_inInterests   << "\t"
+     << m_packets.m_outInterests  << "\t"
+     << m_packets.m_dropInterests << "\t"
+
+     << m_packets.m_inNacks   << "\t"
+     << m_packets.m_outNacks  << "\t"
+     << m_packets.m_dropNacks << "\t"
+
+     << m_packets.m_inData   << "\t"
+     << m_packets.m_outData  << "\t"
+     << m_packets.m_dropData << "\t"
+
+     << m_bytes.m_inInterests   << "\t"
+     << m_bytes.m_outInterests  << "\t"
+     << m_bytes.m_dropInterests << "\t"
+
+     << m_bytes.m_inNacks   << "\t"
+     << m_bytes.m_outNacks  << "\t"
+     << m_bytes.m_dropNacks << "\t"
+
+     << m_bytes.m_inData   << "\t"
+     << m_bytes.m_outData  << "\t"
+     << m_bytes.m_dropData;
+}
+
+void
+L3AggregateTracer::OutInterests  (std::string context,
+                                  Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_outInterests++;
+  m_bytes.m_outInterests += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::InInterests   (std::string context,
+                                  Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_inInterests++;
+  m_bytes.m_inInterests += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::DropInterests (std::string context,
+                                  Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_dropInterests++;
+  m_bytes.m_dropInterests += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::OutNacks  (std::string context,
+                              Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_outNacks++;
+  m_bytes.m_outNacks += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::InNacks   (std::string context,
+                              Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_inNacks++;
+  m_bytes.m_inNacks += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::DropNacks (std::string context,
+                              Ptr<const InterestHeader> header, Ptr<const Face>)
+{
+  m_packets.m_dropNacks++;
+  m_bytes.m_dropNacks += header->GetSerializedSize ();
+}
+
+void
+L3AggregateTracer::OutData  (std::string context,
+                             Ptr<const ContentObjectHeader> header, Ptr<const Packet> payload,
+                             bool fromCache, Ptr<const Face>)
+{
+  m_packets.m_outData++;
+  m_bytes.m_outData += header->GetSerializedSize () + payload->GetSize ();
+}
+
+void
+L3AggregateTracer::InData   (std::string context,
+                             Ptr<const ContentObjectHeader> header, Ptr<const Packet> payload,
+                             Ptr<const Face>)
+{
+  m_packets.m_inData++;
+  m_bytes.m_inData += header->GetSerializedSize () + payload->GetSize ();
+}
+
+void
+L3AggregateTracer::DropData (std::string context,
+                             Ptr<const ContentObjectHeader> header, Ptr<const Packet> payload,
+                             Ptr<const Face>)
+{
+  m_packets.m_dropData++;
+  m_bytes.m_dropData += header->GetSerializedSize () + payload->GetSize ();
+}
+
+} // namespace ndn
+} // namespace ns3