ev.h

#ifndef EVSIM
#define EVSIM

#include <queue>
using namespace std;

#include <string.h>
#include "timeunits.h"

class Event 
{
private:
  timeunits evTime_; // Activation time
  unsigned long id_; // Event identifier. Use as desired.
  char     name_[6]; // Event name. Use as desired.

public:
  Event(timeunits t, unsigned long id=0):
        evTime_(t), id_(id) { };

  Event(timeunits t, char* name, unsigned long id = 0):
        evTime_(t), id_(id) 
        {
          if (0 != name){
                for (unsigned int i=0; (i<5)&&(i<strlen(name));i++){
                  name_[i] = *(name+i);
                }
                name[5]=0;
          };
        }

  virtual ~Event(void) {
  };

  virtual void     Handle(void) = 0;

  inline timeunits Time(void) const {return evTime_;};
  inline void      SetTime(timeunits t) {evTime_ = t;};
  char*            GetName(void) {return name_;};
  inline unsigned int GetId(void) const {return id_;};
};


class CmpEvents
{
public:
  inline bool operator() (Event*& p1, Event*& p2) const{
    return p1->Time() > p2->Time();
  }
};


class EvSim
{
private:
  timeunits now_;       //Current time
  priority_queue <Event*,vector<Event*>, CmpEvents> evQ_;
  timeunits from_;      //Simulation Starting Time
  timeunits to_;        //Simulation Ending Time
  unsigned int len_;    //Event queue length
  unsigned long evnum_; //Event counter

public:
  EvSim(void): now_(0), from_(0), to_(MAXTIME),len_(0), evnum_(0) {};
  virtual ~EvSim(void); 
  inline timeunits CurrentTime(void) const {return now_;};
  void Run(timeunits from = 0, timeunits to = MAXTIME);
  void Schedule(Event* e, bool fifo = true) ;

  void dumpStats (void);
};

extern EvSim Simulation;

#endif

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