Pastry.h

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00001 //
00002 // Copyright (C) 2006 Institut fuer Telematik, Universitaet Karlsruhe (TH)
00003 //
00004 // This program is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU General Public License
00006 // as published by the Free Software Foundation; either version 2
00007 // of the License, or (at your option) any later version.
00008 //
00009 // This program is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 // GNU General Public License for more details.
00013 //
00014 // You should have received a copy of the GNU General Public License
00015 // along with this program; if not, write to the Free Software
00016 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00017 //
00018 
00024 #ifndef __PASTRY_H_
00025 #define __PASTRY_H_
00026 
00027 #include <vector>
00028 #include <map>
00029 #include <queue>
00030 #include <algorithm>
00031 
00032 #include <omnetpp.h>
00033 #include <IPvXAddress.h>
00034 
00035 #include <OverlayKey.h>
00036 #include <NodeHandle.h>
00037 #include <BaseOverlay.h>
00038 #include <BasePastry.h>
00039 
00040 #include "PastryTypes.h"
00041 #include "PastryMessage_m.h"
00042 #include "PastryRoutingTable.h"
00043 #include "PastryLeafSet.h"
00044 #include "PastryNeighborhoodSet.h"
00045 
00046 
00047 
00054 class Pastry : public BasePastry
00055 {
00056   public:
00057     virtual ~Pastry();
00058 
00059     // see BaseOverlay.h
00060     virtual void initializeOverlay(int stage);
00061 
00062     // see BaseOverlay.h
00063     virtual void handleTimerEvent(cMessage* msg);
00064 
00065     // see BaseOverlay.h
00066     virtual void handleUDPMessage(BaseOverlayMessage* msg);
00067 
00068     void handleStateMessage(PastryStateMessage* msg);
00069 
00070   protected:
00071 
00077     virtual void changeState(int toState);
00078 
00079   private:
00080 
00081     simtime_t secondStageInterval;
00082     simtime_t ringCheckInterval;
00083     simtime_t discoveryTimeoutAmount;
00084     bool partialJoinPath;
00085 
00086     int depth;
00087 
00088     int updateCounter;
00089 
00090     bool useSecondStage;
00091     bool sendStateAtLeafsetRepair;
00092     bool pingBeforeSecondStage;
00093 
00094     bool overrideOldPastry;
00095     bool overrideNewPastry;
00096 
00097     cMessage* secondStageWait;
00098     cMessage* ringCheck;
00099     cMessage* discoveryTimeout;
00100     cMessage* repairTaskTimeout;
00101 
00105     void doSecondStage(void);
00106 
00115     bool handleFailedNode(const TransportAddress& failed);
00116 
00121     void checkProxCache(void);
00122 
00123     void processState(void);
00124 
00125     bool mergeState(void);
00126 
00127     void endProcessingState(void);
00128 
00132     void doJoinUpdate(void);
00133 
00134     // see BaseOverlay.h
00135     virtual void joinOverlay();
00136 
00137 };
00138 
00139 
00140 
00141 #endif

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