mpisgvbuf.h

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//                                                         //
// Copyright (c) 2003-2014 by The University of Queensland //
// Centre for Geoscience Computing                         //
// http://earth.uq.edu.au/centre-geoscience-computing      //
//                                                         //
// Primary Business: Brisbane, Queensland, Australia       //
// Licensed under the Open Software License version 3.0    //
// http://www.opensource.org/licenses/osl-3.0.php          //
//                                                         //

#ifndef __MPISGVBUF_H
#define __MPISGVBUF_H

#include "Parallel/mpisgbuf.h"
#include <string>

class CMPIVarSGBufferRoot: public AMPISGBufferRoot
{ 
private:
  char* m_vbuffer;
  char* m_dummy_vbuffer; 
  int m_vbuffersize; 
  int *m_position; 
  int *m_rpos;     

  int *m_recvcount;
  int *m_displ; //<! the diplacements of the slices in the buffer
  int m_ndummy;
 

 protected:
  void grow();
  void growTo(int);

 public:
  CMPIVarSGBufferRoot(MPI_Comm,int isize=16);
  virtual ~CMPIVarSGBufferRoot();

  virtual void clear();
  virtual void gather();
  virtual void scatter();
  virtual void append(int,int);
  virtual void append(double,int);
  virtual void append(const char*,int);
  virtual int pop_int(int);
  virtual double pop_double(int);
  virtual void pop_doubles(int,double *,int);
};

class CMPIVarSGBufferLeaf: public AMPISGBufferLeaf
{
 private:
  char* m_vbuffer; 
  int m_vbuffersize; 
  int m_position; 
  int m_data_size;

 protected:
  void grow();
  void growTo(int);

 public:
  CMPIVarSGBufferLeaf(MPI_Comm,int,int isize=16);
  virtual ~CMPIVarSGBufferLeaf();

  virtual void clear();
  virtual void send();
  virtual void receive();
  virtual void append(int);
  virtual void append(double);
  virtual void append(const char*);
  virtual int pop_int();
  virtual double pop_double();
  virtual void pop_doubles(double *,int);
  virtual std::string pop_string();
};



#endif // __MPISGVBUF_H