Separating interface and implementation of FIB. Right now everything is
kind of broken.
diff --git a/model/ccnx-fib-entry.cc b/model/ccnx-fib-entry.cc
new file mode 100644
index 0000000..c0c575a
--- /dev/null
+++ b/model/ccnx-fib-entry.cc
@@ -0,0 +1,185 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "ccnx-fib-entry.h"
+
+#include "ns3/ccnx-name-components.h"
+#include "ns3/log.h"
+
+#define NDN_RTO_ALPHA 0.125
+#define NDN_RTO_BETA 0.25
+#define NDN_RTO_K 4
+
+#include <boost/ref.hpp>
+#include <boost/lambda/lambda.hpp>
+#include <boost/lambda/bind.hpp>
+namespace ll = boost::lambda;
+
+NS_LOG_COMPONENT_DEFINE ("CcnxFibEntry");
+
+namespace ns3
+{
+
+//////////////////////////////////////////////////////////////////////
+// Helpers
+//////////////////////////////////////////////////////////////////////
+namespace __ccnx_private {
+
+struct CcnxFibFaceMetricByFace
+{
+ typedef CcnxFibFaceMetricContainer::type::index<i_face>::type
+ type;
+};
+
+}
+//////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////
+
+using namespace __ccnx_private;
+
+void
+CcnxFibFaceMetric::UpdateRtt (const Time &rttSample)
+{
+ // const Time & this->m_rttSample
+
+ //update srtt and rttvar (RFC 2988)
+ if (m_sRtt.IsZero ())
+ {
+ //first RTT measurement
+ NS_ASSERT_MSG (m_rttVar.IsZero (), "SRTT is zero, but variation is not");
+
+ m_sRtt = rttSample;
+ m_rttVar = Time (m_sRtt / 2.0);
+ }
+ else
+ {
+ m_rttVar = Time ((1 - NDN_RTO_BETA) * m_rttVar + NDN_RTO_BETA * Abs(m_sRtt - rttSample));
+ m_sRtt = Time ((1 - NDN_RTO_ALPHA) * m_sRtt + NDN_RTO_ALPHA * rttSample);
+ }
+}
+
+/////////////////////////////////////////////////////////////////////
+
+void
+CcnxFibEntry::UpdateFaceRtt (Ptr<CcnxFace> face, const Time &sample)
+{
+ CcnxFibFaceMetricByFace::type::iterator record = m_faces.get<i_face> ().find (face);
+ NS_ASSERT_MSG (record != m_faces.get<i_face> ().end (),
+ "Update status can be performed only on existing faces of CcxnFibEntry");
+
+ m_faces.modify (record,
+ ll::bind (&CcnxFibFaceMetric::UpdateRtt, ll::_1, sample));
+
+ // reordering random access index same way as by metric index
+ m_faces.get<i_nth> ().rearrange (m_faces.get<i_metric> ().begin ());
+}
+
+void
+CcnxFibEntry::UpdateStatus (Ptr<CcnxFace> face, CcnxFibFaceMetric::Status status)
+{
+ NS_LOG_FUNCTION (this << boost::cref(*face) << status);
+
+ CcnxFibFaceMetricByFace::type::iterator record = m_faces.get<i_face> ().find (face);
+ NS_ASSERT_MSG (record != m_faces.get<i_face> ().end (),
+ "Update status can be performed only on existing faces of CcxnFibEntry");
+
+ m_faces.modify (record,
+ (&ll::_1)->*&CcnxFibFaceMetric::m_status = status);
+
+ // reordering random access index same way as by metric index
+ m_faces.get<i_nth> ().rearrange (m_faces.get<i_metric> ().begin ());
+}
+
+void
+CcnxFibEntry::AddOrUpdateRoutingMetric (Ptr<CcnxFace> face, int32_t metric)
+{
+ NS_LOG_FUNCTION (this);
+ NS_ASSERT_MSG (face != NULL, "Trying to Add or Update NULL face");
+
+ CcnxFibFaceMetricByFace::type::iterator record = m_faces.get<i_face> ().find (face);
+ if (record == m_faces.get<i_face> ().end ())
+ {
+ m_faces.insert (CcnxFibFaceMetric (face, metric));
+ }
+ else
+ {
+ // don't update metric to higher value
+ if (record->m_routingCost > metric || record->m_status == CcnxFibFaceMetric::NDN_FIB_RED)
+ {
+ m_faces.modify (record,
+ (&ll::_1)->*&CcnxFibFaceMetric::m_routingCost = metric);
+
+ m_faces.modify (record,
+ (&ll::_1)->*&CcnxFibFaceMetric::m_status = CcnxFibFaceMetric::NDN_FIB_YELLOW);
+ }
+ }
+
+ // reordering random access index same way as by metric index
+ m_faces.get<i_nth> ().rearrange (m_faces.get<i_metric> ().begin ());
+}
+
+void
+CcnxFibEntry::Invalidate ()
+{
+ for (CcnxFibFaceMetricByFace::type::iterator face = m_faces.begin ();
+ face != m_faces.end ();
+ face++)
+ {
+ m_faces.modify (face,
+ (&ll::_1)->*&CcnxFibFaceMetric::m_routingCost = std::numeric_limits<uint16_t>::max ());
+
+ m_faces.modify (face,
+ (&ll::_1)->*&CcnxFibFaceMetric::m_status = CcnxFibFaceMetric::NDN_FIB_RED);
+ }
+}
+
+const CcnxFibFaceMetric &
+CcnxFibEntry::FindBestCandidate (uint32_t skip/* = 0*/) const
+{
+ if (m_faces.size () == 0) throw CcnxFibEntry::NoFaces ();
+ skip = skip % m_faces.size();
+ return m_faces.get<i_nth> () [skip];
+}
+
+std::ostream& operator<< (std::ostream& os, const CcnxFibEntry &entry)
+{
+ for (CcnxFibFaceMetricContainer::type::index<i_nth>::type::iterator metric =
+ entry.m_faces.get<i_nth> ().begin ();
+ metric != entry.m_faces.get<i_nth> ().end ();
+ metric++)
+ {
+ if (metric != entry.m_faces.get<i_nth> ().begin ())
+ os << ", ";
+
+ os << *metric;
+ }
+ return os;
+}
+
+std::ostream& operator<< (std::ostream& os, const CcnxFibFaceMetric &metric)
+{
+ static const std::string statusString[] = {"","g","y","r"};
+
+ os << *metric.m_face << "(" << metric.m_routingCost << ","<< statusString [metric.m_status] << "," << metric.m_face->GetMetric () << ")";
+ return os;
+}
+
+
+} // ns3