lduInterface.H

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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.

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Class
    Foam::lduInterface

Description
    An abstract base class for implicitly-coupled interfaces
    e.g. processor and cyclic patches.
    
SourceFiles
    lduInterface.C

\*---------------------------------------------------------------------------*/

#ifndef lduInterface_H
#define lduInterface_H

#include <OpenFOAM/labelField.H>
#include <OpenFOAM/typeInfo.H>

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

/*---------------------------------------------------------------------------*\
                     Class lduInterface Declaration
\*---------------------------------------------------------------------------*/

class lduInterface
{
    // Private Member Functions

        //- Disallow default bitwise copy construct
        lduInterface(const lduInterface&);

        //- Disallow default bitwise assignment
        void operator=(const lduInterface&);


public:

    //- Runtime type information
    TypeName("lduInterface");


    // Constructors

        //- Construct null
        lduInterface()
        {}


    // Destructor

        virtual ~lduInterface();


    // Member Functions

        // Access

            //- Return faceCell addressing
            virtual const unallocLabelList& faceCells() const = 0;


        // Interface transfer functions

            //- Return the values of the given internal data adjacent to
            //  the interface as a field
            virtual tmp<labelField> interfaceInternalField
            (
                const unallocLabelList& internalData
            ) const = 0;

            //- Initialise interface data transfer
            virtual void initTransfer
            (
                const Pstream::commsTypes commsType,
                const unallocLabelList& interfaceData
            ) const
            {}

            //- Transfer and return neighbour field
            virtual tmp<labelField> transfer
            (
                const Pstream::commsTypes commsType,
                const unallocLabelList& interfaceData
            ) const = 0;

            //- Initialise transfer of internal field adjacent to the interface
            virtual void initInternalFieldTransfer
            (
                const Pstream::commsTypes commsType,
                const unallocLabelList& iF
            ) const
            {}

            //- Transfer and return internal field adjacent to the interface
            virtual tmp<labelField> internalFieldTransfer
            (
                const Pstream::commsTypes commsType,
                const unallocLabelList& iF
            ) const = 0;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

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