Simulator.h

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00001 /*
00002  *    Copyright 2004-2006 Intel Corporation
00003  * 
00004  *    Licensed under the Apache License, Version 2.0 (the "License");
00005  *    you may not use this file except in compliance with the License.
00006  *    You may obtain a copy of the License at
00007  * 
00008  *        http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  *    Unless required by applicable law or agreed to in writing, software
00011  *    distributed under the License is distributed on an "AS IS" BASIS,
00012  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *    See the License for the specific language governing permissions and
00014  *    limitations under the License.
00015  */
00016 
00017 #include <queue>
00018 #include <oasys/debug/DebugUtils.h>
00019 #include <oasys/debug/Log.h>
00020 
00021 #include "DTNServer.h"
00022 #include "SimEvent.h"
00023 #include "SimEventHandler.h"
00024 #include "storage/DTNStorageConfig.h"
00025 
00026 namespace dtnsim {
00027 
00031 class Simulator : public DTNServer, public SimEventHandler {
00032 public:
00036     static Simulator* instance() {
00037         if (instance_ == NULL) {
00038             PANIC("Simulator::init not called yet");
00039         }
00040         return instance_;
00041     }
00042 
00046     static void init(Simulator* instance) {
00047         if (instance_ != NULL) {
00048             PANIC("Simulator::init called multiple times");
00049         }
00050         instance_ = instance;
00051     }
00052 
00053     static double time() { return time_; }
00054 
00058     Simulator(DTNStorageConfig* storage_config);
00059         
00063     virtual ~Simulator() {}
00064 
00068     static void post(SimEvent *e);
00069     
00073     void exit();
00074 
00078     void run();
00079     
00080     static double runtill_;             
00081     
00082 protected:
00083     static Simulator* instance_;        
00084     void process(SimEvent* e);          
00085 
00086 private:
00087     
00088     static double time_;        
00089 
00090     bool is_running_;   
00091 
00092                      
00093     
00094     std::priority_queue<SimEvent*,
00095                         std::vector<SimEvent*>,
00096                         SimEventCompare> eventq_;
00097         
00098     oasys::DurableStore* store_;
00099 };
00100 
00101 } // namespace dtnsim
00102     

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