EpetraExt_ZoltanMpiCommData.h

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// 
//     EpetraExt: Epetra Extended - Linear Algebra Services Package
//                 Copyright (2001) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
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#ifndef EPETRAEXT_ZOLTANMPICOMMDATA_H
#define EPETRAEXT_ZOLTANMPICOMMDATA_H

#include "Epetra_Data.h"
#include <mpi.h>

namespace EpetraExt {


class ZoltanMpiCommData : public Epetra_Data {

  friend class ZoltanMpiComm;

 private:


  ZoltanMpiCommData(MPI_Comm & Comm);

  ~ZoltanMpiCommData();


  MPI_Comm Comm_; 

  int rank_;
  int size_;
  enum {minTag_= 24050};
  enum {maxTag_= 24099};

  // Some day, when the Microsoft 6.0 C++ compiler disappears, we can use ANSI/ISO standard
  // declarations for minTag_ and maxTag_
  //static const int minTag_= 24050;
  //static const int maxTag_= 24099;

  mutable int curTag_;

  // these are intentionally declared but not defined. See Epetra Developer's Guide for details.
  ZoltanMpiCommData(const ZoltanMpiCommData & CommData);
  ZoltanMpiCommData& operator=(const ZoltanMpiCommData & CommData);
  
};

} //namespace EpetraExt

#endif /* EPETRAEXT_ZOLTANMPICOMMDATA_H */

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