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