JobCGraphVtx.h

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// $Id: JobCGraphVtx.h,v 1.6 2008/02/05 19:02:39 scavan Exp $
// 
// A single vertex in a directed graph
//
// messier@huhepl.harvard.edu
#ifndef JOBCGRAPHVTX_H
#define JOBCGRAPHVTX_H
#ifndef VECTOR
#include <vector>
#define VECTOR
#endif
#ifndef ROOT_Rtypes
#if !defined(__CINT__) || defined(__MAKECINT__)
#include "Rtypes.h" // Needed for ClassDef and ClassImp macros
#endif
#endif

using namespace std;

class JobCRecord;

class JobCGraphVtx
{
public:
  JobCGraphVtx();
  virtual ~JobCGraphVtx() { }

  JobCGraphVtx* GetAttached(unsigned int i) const;
  
  virtual bool EvalInput(JobCRecord* rec) = 0;
  virtual void Attach(JobCGraphVtx *p);
  virtual void Detach(JobCGraphVtx *p);

  void EvaluateGraph(JobCRecord* rec);
  void EvaluateNode(JobCRecord* rec);

private:
  void AddUpStream();
  void ReceiveNotification(bool passfail);
  void SendNotification(bool passfail);
  void InitGraphEvaluate();
  virtual void DerivedInitGraphEvaluate() { }

  int fNupStream;          // # of nodes upstream of this node
  int fNupStreamPassed;    // # of upstream nodes that have reported pass
  int fNupStreamFailed;    // # of upstream nodes that have reported fail
  vector<JobCGraphVtx*> fDownStream; // List of nodes connected to this node

  ClassDef(JobCGraphVtx,0) // A single vertex in a directed graph
};
#endif // JOBCGRAPHVTX_H

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