unwatchedIOdictionary.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    Copyright (C) 2015 OpenFOAM Foundation
    Copyright (C) 2021 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
    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
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\*---------------------------------------------------------------------------*/
 
#include "unwatchedIOdictionary.H"
#include "objectRegistry.H"
#include "Pstream.H"
#include "Time.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::unwatchedIOdictionary::unwatchedIOdictionary
(
    const IOobject& io,
    const dictionary* fallback
)
:
    unwatchedIOdictionary(io, typeName, fallback)
{}
 
 
Foam::unwatchedIOdictionary::unwatchedIOdictionary
(
    const IOobject& io,
    const dictionary& dict
)
:
    unwatchedIOdictionary(io, typeName, &dict)
{}
 
 
Foam::unwatchedIOdictionary::unwatchedIOdictionary
(
    const IOobject& io,
    const word& wantedType,
    const dictionary* fallback
)
:
    baseIOdictionary(io, fallback)
{
    if (!readHeaderOk(IOstream::ASCII, wantedType) && fallback)
    {
        dictionary::operator=(*fallback);
    }
 
    // For if MUST_READ_IF_MODIFIED
    addWatch();
}
 
 
Foam::unwatchedIOdictionary::unwatchedIOdictionary
(
    const IOobject& io,
    Istream& is
)
:
    baseIOdictionary(io, is)
{
    // Default construct dictionary and read in afterwards
    // so that if there is some fancy massaging due to a
    // functionEntry in
    // the dictionary at least the type information is already complete.
    is  >> *this;
 
    // For if MUST_READ_IF_MODIFIED
    addWatch();
}
 
 
// * * * * * * * * * * * * * * * Members Functions * * * * * * * * * * * * * //
 
Foam::label Foam::unwatchedIOdictionary::addWatch(const fileName& f)
{
    label index = -1;
 
    if (readOpt() == MUST_READ_IF_MODIFIED)
    {
        index = files_.find(f);
 
        if (index == -1)
        {
            index = files_.size();
            files_.append(f);
        }
    }
    return index;
}
 
 
void Foam::unwatchedIOdictionary::addWatch()
{
    if (readOpt() == MUST_READ_IF_MODIFIED)
    {
        fileName f = filePath();
        if (f.empty())
        {
            // We don't have this file but would like to re-read it.
            // Possibly if master-only reading mode.
            f = objectPath();
        }
 
        if (files_.found(f))
        {
            FatalErrorInFunction
                << "Object " << objectPath() << " of type " << type()
                << " already watched" << nl
                << abort(FatalError);
        }
 
        // If master-only reading only the master will have all dependencies
        // so scatter these to slaves
        bool masterOnly =
            global()
         && (
                IOobject::fileModificationChecking == IOobject::timeStampMaster
             || IOobject::fileModificationChecking == IOobject::inotifyMaster
            );
 
        if (masterOnly && Pstream::parRun())
        {
            Pstream::scatter(files_);
        }
 
        addWatch(f);
    }
}
 
 
// ************************************************************************* //