/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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 2 of the License, or (at your
    option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    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, write to the Free Software Foundation,
    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

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

#include "processorCyclicPointPatchField.H"
#include "transformField.H"
#include "processorPolyPatch.H"

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

namespace Foam
{

// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //

template<class Type>
processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF
)
:
    coupledPointPatchField<Type>(p, iF),
    procPatch_(refCast<const processorCyclicPointPatch>(p))
{}


template<class Type>
processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF,
    const dictionary& dict
)
:
    coupledPointPatchField<Type>(p, iF, dict),
    procPatch_(refCast<const processorCyclicPointPatch>(p))
{}


template<class Type>
processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const processorCyclicPointPatchField<Type>& ptf,
    const pointPatch& p,
    const DimensionedField<Type, pointMesh>& iF,
    const pointPatchFieldMapper& mapper
)
:
    coupledPointPatchField<Type>(ptf, p, iF, mapper),
    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
{}


template<class Type>
processorCyclicPointPatchField<Type>::processorCyclicPointPatchField
(
    const processorCyclicPointPatchField<Type>& ptf,
    const DimensionedField<Type, pointMesh>& iF
)
:
    coupledPointPatchField<Type>(ptf, iF),
    procPatch_(refCast<const processorCyclicPointPatch>(ptf.patch()))
{}


// * * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * //

template<class Type>
processorCyclicPointPatchField<Type>::~processorCyclicPointPatchField()
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

template<class Type>
void processorCyclicPointPatchField<Type>::initSwapAddSeparated
(
    const Pstream::commsTypes commsType,
    Field<Type>& pField
) const
{
    if (Pstream::parRun())
    {
        // Get internal field into correct order for opposite side
        Field<Type> pf
        (
            this->patchInternalField
            (
                pField,
                procPatch_.reverseMeshPoints()
            )
        );

        OPstream::write
        (
            commsType,
            procPatch_.neighbProcNo(),
            reinterpret_cast<const char*>(pf.begin()),
            pf.byteSize(),
            procPatch_.tag()
        );
    }
}


template<class Type>
void processorCyclicPointPatchField<Type>::swapAddSeparated
(
    const Pstream::commsTypes commsType,
    Field<Type>& pField
) const
{
    if (Pstream::parRun())
    {
        Field<Type> pnf(this->size());

        IPstream::read
        (
            commsType,
            procPatch_.neighbProcNo(),
            reinterpret_cast<char*>(pnf.begin()),
            pnf.byteSize(),
            procPatch_.tag()
        );

        if (doTransform())
        {
            const processorCyclicPolyPatch& ppp =
                procPatch_.procCyclicPolyPatch();
            const tensor& forwardT = ppp.forwardT()[0];

            transform(pnf, forwardT, pnf);
        }

        // All points are separated
        addToInternalField(pField, pnf);
    }
}


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

} // End namespace Foam

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