133 lines
2.8 KiB
C++
133 lines
2.8 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2015,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//[$][\$]
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*/
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#include "DInputConsumer.h"
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using namespace std;
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using namespace distributed2;
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namespace distributed5
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{
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/*
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1 DInputConsumer
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1.1 Constructor
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*/
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DInputConsumer::DInputConsumer(DInputConsumer &&move)
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{
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workers = move.workers;
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move.workers = 0;
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dArray = move.dArray;
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move.dArray = 0;
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stream = move.stream;
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move.stream = 0;
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workerIndex = move.workerIndex;
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index = move.index;
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storageType = move.storageType;
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contentType = move.contentType;
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}
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DInputConsumer::DInputConsumer(DArrayBase *dArray, ListExpr contentType)
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{
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this->stream = 0;
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this->workers = &dArray->getWorker();
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workerIndex = 0;
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this->dArray = dArray;
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this->contentType = contentType;
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index = 0;
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storageType = DataStorageType::Object;
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if (dArray->getType() == arrayType::DFARRAY)
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storageType = DataStorageType::File;
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}
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DInputConsumer::DInputConsumer(Word &stream)
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{
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this->workers = 0;
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this->dArray = 0;
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this->stream = new Stream<Task>(stream);
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this->stream->open();
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}
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DInputConsumer::~DInputConsumer()
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{
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if (this->stream)
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{
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delete this->stream;
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this->stream = 0;
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}
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}
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/*
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1.2 request Methode
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*/
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Task *DInputConsumer::request()
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{
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if (workers)
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{
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Task *result = new WorkerTask((*workers)[workerIndex]);
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workerIndex++;
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if (workerIndex >= workers->size())
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{
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workers = 0;
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}
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return result;
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}
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if (dArray)
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{
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Task *result = new DataTask(
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dArray->getWorkerForSlot(index),
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dArray->getName(),
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index,
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storageType,
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contentType);
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result->setFlag(Output);
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index++;
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if (index >= dArray->getSize())
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{
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dArray = 0;
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}
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return result;
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}
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if (stream)
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{
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Task *result = stream->request();
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if (result == 0)
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{
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delete stream;
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stream = 0;
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}
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return result;
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}
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return 0;
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}
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} // namespace distributed5
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