distributedFieldMapper.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2019-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::DistributedFieldMapper
 
Description
    A templated field mapper
    with direct mapping from local or remote quantities.
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_distributedFieldMapper_H
#define Foam_distributedFieldMapper_H
 
#include "directFieldMapper.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
template<class DirectFieldMapperType> class DistributedFieldMapper;
 
// Standard Types
 
//- A directFieldMapper with distributed (with local or remote) quantities
typedef DistributedFieldMapper<directFieldMapper> distributedFieldMapper;
 
 
/*---------------------------------------------------------------------------*\
                   Class DistributedFieldMapper Declaration
\*---------------------------------------------------------------------------*/
 
template<class DirectFieldMapperType>
class DistributedFieldMapper
:
    public DirectFieldMapperType
{
    // Private Data
 
        //- The distributed map
        const mapDistributeBase& distMap_;
 
 
public:
 
    // Public Types
 
        //- The base direct mapper type
        typedef DirectFieldMapperType mapper_type;
 
 
    // Constructors
 
        //- Construct with addressing and distribute map
        DistributedFieldMapper
        (
            const labelUList& directAddr,
            const mapDistributeBase& distMap
        )
        :
            DirectFieldMapperType(directAddr),
            distMap_(distMap)
        {}
 
 
    //- Destructor
    virtual ~DistributedFieldMapper() = default;
 
 
    // Member Functions
 
        //- The mapper size is given by the direct addressing size (if valid)
        //- or from the distributeMap construct size.
        virtual label size() const
        {
            return
            (
                DirectFieldMapperType::hasDirectAddressing()
              ? DirectFieldMapperType::size()
              : distMap_.constructSize()
            );
        }
 
        //- It is a distributed mapper
        virtual bool distributed() const
        {
            return true;
        }
 
        //- Return the distribution map
        virtual const mapDistributeBase& distributeMap() const
        {
            return distMap_;
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //