/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2021-2026 OpenFOAM Foundation
     \\/     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 3 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, see <http://www.gnu.org/licenses/>.

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

#include "coordSet.H"
#include "ListListOps.H"

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

template<class Type>
Foam::tmp<Foam::Field<Type>> Foam::coordSet::gather
(
    const Field<Type>& values,
    const labelList& order
)
{
    // Collect data from all processors
    List<List<Type>> gatheredValues(Pstream::nProcs());
    gatheredValues[Pstream::myProcNo()] = values;
    Pstream::gatherList(gatheredValues);

    // Combine processor lists into one big list
    List<Type> allValues
    (
        ListListOps::combine<List<Type>>
        (
            gatheredValues,
            accessOp()
        )
    );

    // Sort by order and overwrite
    return tmp<Field<Type>>(new Field<Type>(allValues, order));
}


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