LifetimeChurn.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 __LIFETIMECHURN_H_
00025 #define __LIFETIMECHURN_H_
00026 
00027 #include <ChurnGenerator.h>
00028 
00029 class GlobalStatistics;
00030 class TransportAddress;
00031 
00036 class LifetimeChurn: public ChurnGenerator
00037 {
00038 public:
00039     void handleMessage(cMessage* msg);
00040     void initializeChurn();
00041     LifetimeChurn() { initFinishedTimer = NULL; };
00042     ~LifetimeChurn();
00043 
00044 protected:
00045     void updateDisplayString();
00046     void createNode(simtime_t lifetime, bool initialize, int contextPos);
00047     void deleteNode(TransportAddress& addr, int contextPos);
00048     double distributionFunction();
00049     void scheduleCreateNodeAt(simtime_t creationTime, simtime_t lifetime,
00050                               int contextPos);
00051 
00052 private:
00053     GlobalStatistics* globalStatistics; //*< pointer to GlobalStatistics module in this node */
00054 
00055     double initialMean; 
00056     double initialDeviation; 
00057     double targetMean; 
00058     std::string lifetimeDistName; 
00059     double lifetimeMean; 
00060     double lifetimeDistPar1; 
00061 
00062     cMessage* initFinishedTimer; 
00064     std::vector<cObject*> contextVector; 
00066     simtime_t lastCreate;
00067     simtime_t lastDelete;
00068 };
00069 
00070 #endif
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