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OpenFOAM-12/src/OpenFOAM/fields/ReadFields/ReadFields.C

388 lines
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C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 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 "ReadFields.H"
#include "IOobjectList.H"
#include "objectRegistry.H"
// * * * * * * * * * * * * * * * Global Functions * * * * * * * * * * * * * //
template<class GeoField, class Mesh>
Foam::wordList Foam::ReadFields
(
const Mesh& mesh,
const IOobjectList& objects,
PtrList<GeoField>& fields,
const bool syncPar
)
{
// Search list of objects for wanted type
IOobjectList fieldObjects(objects.lookupClass(GeoField::typeName));
wordList masterNames(fieldObjects.names());
if (syncPar && Pstream::parRun())
{
// Check that I have the same fields as the master
const wordList localNames(masterNames);
Pstream::scatter(masterNames);
HashSet<word> localNamesSet(localNames);
forAll(masterNames, i)
{
const word& masterFld = masterNames[i];
HashSet<word>::iterator iter = localNamesSet.find(masterFld);
if (iter == localNamesSet.end())
{
FatalErrorInFunction
<< "Fields not synchronised across processors." << endl
<< "Master has fields " << masterNames
<< " processor " << Pstream::myProcNo()
<< " has fields " << localNames << exit(FatalError);
}
else
{
localNamesSet.erase(iter);
}
}
forAllConstIter(HashSet<word>, localNamesSet, iter)
{
FatalErrorInFunction
<< "Fields not synchronised across processors." << endl
<< "Master has fields " << masterNames
<< " processor " << Pstream::myProcNo()
<< " has fields " << localNames << exit(FatalError);
}
}
fields.setSize(masterNames.size());
// Make sure to read in masterNames order.
forAll(masterNames, i)
{
Info<< "Reading " << GeoField::typeName << ' ' << masterNames[i]
<< endl;
const IOobject& io = *fieldObjects[masterNames[i]];
fields.set
(
i,
new GeoField
(
IOobject
(
io.name(),
io.instance(),
io.local(),
io.db(),
IOobject::MUST_READ,
IOobject::AUTO_WRITE,
io.registerObject()
),
mesh
)
);
}
return masterNames;
}
template<class GeoField>
void Foam::ReadFields
(
const word& fieldName,
const typename GeoField::Mesh& mesh,
const wordList& timeNames,
objectRegistry& fieldsCache
)
{
// Collect all times that are no longer used
{
HashSet<word> usedTimes(timeNames);
DynamicList<word> unusedTimes(fieldsCache.size());
forAllIter(objectRegistry, fieldsCache, timeIter)
{
const word& tm = timeIter.key();
if (!usedTimes.found(tm))
{
unusedTimes.append(tm);
}
}
forAll(unusedTimes, i)
{
objectRegistry& timeCache = const_cast<objectRegistry&>
(
fieldsCache.lookupObject<objectRegistry>(unusedTimes[i])
);
fieldsCache.checkOut(timeCache);
}
}
// Load any new fields
forAll(timeNames, i)
{
const word& tm = timeNames[i];
// Create if not found
if (!fieldsCache.found(tm))
{
// Create objectRegistry if not found
objectRegistry* timeCachePtr = new objectRegistry
(
IOobject
(
tm,
tm,
fieldsCache,
IOobject::NO_READ,
IOobject::NO_WRITE
)
);
timeCachePtr->store();
}
// Obtain cache for current time
const objectRegistry& timeCache =
fieldsCache.lookupObject<objectRegistry>
(
tm
);
// Store field if not found
if (!timeCache.found(fieldName))
{
GeoField loadedFld
(
IOobject
(
fieldName,
tm,
mesh.thisDb(),
IOobject::MUST_READ,
IOobject::NO_WRITE,
false
),
mesh
);
// Transfer to timeCache (new objectRegistry and store flag)
GeoField* fldPtr = new GeoField
(
IOobject
(
fieldName,
tm,
timeCache,
IOobject::NO_READ,
IOobject::NO_WRITE
),
loadedFld
);
fldPtr->store();
}
}
}
template<class GeoField>
void Foam::ReadFields
(
const word& fieldName,
const typename GeoField::Mesh& mesh,
const wordList& timeNames,
const word& registryName
)
{
ReadFields<GeoField>
(
fieldName,
mesh,
timeNames,
const_cast<objectRegistry&>
(
mesh.thisDb().subRegistry(registryName, true)
)
);
}
template<class GeoFieldType>
void Foam::readFields
(
const typename GeoFieldType::Mesh& mesh,
const IOobjectList& objects,
const HashSet<word>& selectedFields,
LIFOStack<regIOobject*>& storedObjects
)
{
IOobjectList fields(objects.lookupClass(GeoFieldType::typeName));
if (!fields.size()) return;
bool firstField = true;
forAllConstIter(IOobjectList, fields, fieldIter)
{
const IOobject& io = *fieldIter();
const word& fieldName = io.name();
if (selectedFields.found(fieldName))
{
if (firstField)
{
Info<< " " << GeoFieldType::typeName << "s:";
firstField = false;
}
Info<< " " << fieldName;
GeoFieldType* fieldPtr = new GeoFieldType
(
IOobject
(
fieldName,
io.instance(),
io.local(),
io.db(),
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
fieldPtr->store();
storedObjects.push(fieldPtr);
}
}
if (!firstField)
{
Info<< endl;
}
}
template<class UniformFieldType>
void Foam::readUniformFields
(
const IOobjectList& objects,
const HashSet<word>& selectedFields,
LIFOStack<regIOobject*>& storedObjects,
const bool syncPar
)
{
// Search list of objects for wanted type
IOobjectList fields(objects.lookupClass(UniformFieldType::typeName));
if (!fields.size()) return;
wordList masterNames(fields.names());
if (syncPar && Pstream::parRun())
{
// Check that I have the same fields as the master
const wordList localNames(masterNames);
Pstream::scatter(masterNames);
HashSet<word> localNamesSet(localNames);
forAll(masterNames, i)
{
const word& masterFld = masterNames[i];
HashSet<word>::iterator iter = localNamesSet.find(masterFld);
if (iter == localNamesSet.end())
{
FatalErrorInFunction
<< "Fields not synchronised across processors." << endl
<< "Master has fields " << masterNames
<< " processor " << Pstream::myProcNo()
<< " has fields " << localNames << exit(FatalError);
}
else
{
localNamesSet.erase(iter);
}
}
forAllConstIter(HashSet<word>, localNamesSet, iter)
{
FatalErrorInFunction
<< "Fields not synchronised across processors." << endl
<< "Master has fields " << masterNames
<< " processor " << Pstream::myProcNo()
<< " has fields " << localNames << exit(FatalError);
}
}
bool firstField = true;
forAll(masterNames, i)
{
const IOobject& io = *fields[masterNames[i]];
const word& fieldName = io.name();
if (selectedFields.found(fieldName))
{
if (firstField)
{
Info<< " " << UniformFieldType::typeName << "s:";
firstField = false;
}
Info<< " " << fieldName;
UniformFieldType* fieldPtr = new UniformFieldType
(
IOobject
(
fieldName,
io.instance(),
io.local(),
io.db(),
IOobject::MUST_READ,
IOobject::NO_WRITE
)
);
fieldPtr->store();
storedObjects.push(fieldPtr);
}
}
Info<< endl;
}
// ************************************************************************* //