NS-3 based Named Data Networking (NDN) simulator
ndnSIM: NDN, CCN, CCNx, content centric networks
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green-yellow-red.h
1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
2 /*
3  * Copyright (c) 2011 University of California, Los Angeles
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
19  * Ilya Moiseenko <iliamo@cs.ucla.edu>
20  */
21 #ifndef NDNSIM_GREEN_YELLOW_RED_H
22 #define NDNSIM_GREEN_YELLOW_RED_H
23 
24 #include "nacks.h"
25 
26 namespace ns3 {
27 namespace ndn {
28 namespace fw {
29 
35  public Nacks
36 {
37 public:
38  static TypeId
39  GetTypeId (void);
40 
41 protected:
42  virtual void
43  WillSatisfyPendingInterest (Ptr<Face> inFace,
44  Ptr<pit::Entry> pitEntry);
45 
46  virtual bool
47  DoPropagateInterest (Ptr<Face> inFace,
48  Ptr<const Interest> interest,
49  Ptr<pit::Entry> pitEntry);
50 
51  virtual void
52  WillEraseTimedOutPendingInterest (Ptr<pit::Entry> pitEntry);
53 
54  virtual void
55  DidReceiveValidNack (Ptr<Face> incomingFace,
56  uint32_t nackCode,
57  Ptr<const Interest> nack,
58  Ptr<pit::Entry> pitEntry);
59 private:
60  typedef Nacks super;
61 };
62 
63 } // namespace fw
64 } // namespace ndn
65 } // namespace ns3
66 
67 #endif // NDNSIM_GREEN_YELLOW_RED
Forwarding strategy extensions to track simple link status based on data plane performance.
virtual void WillSatisfyPendingInterest(Ptr< Face > inFace, Ptr< pit::Entry > pitEntry)
Even fired just before Interest will be satisfied.
virtual void WillEraseTimedOutPendingInterest(Ptr< pit::Entry > pitEntry)
Event fired just before PIT entry is removed by timeout.
virtual bool DoPropagateInterest(Ptr< Face > inFace, Ptr< const Interest > interest, Ptr< pit::Entry > pitEntry)
Virtual method to perform Interest propagation according to the forwarding strategy logic...
Implementation of experimental NACK messages (enables with EnableNACKs option)
Definition: nacks.h:33