setTimeStepFunctionObject.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2013-2016 OpenFOAM Foundation
    Copyright (C) 2016-2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
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    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "setTimeStepFunctionObject.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
    defineTypeNameAndDebug(setTimeStepFunctionObject, 0);
 
    addToRunTimeSelectionTable
    (
        functionObject,
        setTimeStepFunctionObject,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::functionObjects::setTimeStepFunctionObject::setTimeStepFunctionObject
(
    const word& name,
    const Time& runTime,
    const dictionary& dict
)
:
    timeFunctionObject(name, runTime)
{
    read(dict);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
bool Foam::functionObjects::setTimeStepFunctionObject::adjustTimeStep()
{
    // Wanted timestep
    scalar newDeltaT = timeStepPtr_().value(time_.timeOutputValue());
 
    static label index = -1;
 
    if (time_.timeIndex() != index)
    {
        // Store current time so we don't get infinite recursion (since
        // setDeltaT calls adjustTimeStep() again)
        index = time_.timeIndex();
 
        // Set time, allow deltaT to be adjusted for writeInterval purposes
        const_cast<Time&>(time_).setDeltaT(newDeltaT, false);
    }
 
    return true;
}
 
 
bool Foam::functionObjects::setTimeStepFunctionObject::read
(
    const dictionary& dict
)
{
    timeFunctionObject::read(dict);
 
    timeStepPtr_ = Function1<scalar>::New("deltaT", dict, &time_);
 
    // Ensure that adjustTimeStep is active
    if (!time_.controlDict().getOrDefault("adjustTimeStep", false))
    {
        FatalIOErrorInFunction(dict)
            << "Need to set 'adjustTimeStep' true to allow timestep control"
            << nl
            << exit(FatalIOError);
    }
 
    return true;
}
 
 
bool Foam::functionObjects::setTimeStepFunctionObject::execute()
{
    return true;
}
 
 
bool Foam::functionObjects::setTimeStepFunctionObject::write()
{
    return true;
}
 
 
// ************************************************************************* //