76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2019,
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University in Hagen,
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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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#include <ListUtils.h>
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#include <../../../Relation-C++/RelationAlgebra.h>
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#include <StandardTypes.h>
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#include "Stream.h"
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#include "ClosePregelWorkers.h"
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#include "../../MessageBroker/MessageWrapper.h"
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#include "../../PregelContext.h"
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#include "../../Helpers/WorkerConfig.h"
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#include "../Messaging/MessageDistribute.h"
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#include "../../Helpers/Commander.h"
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#include "../../typedefs.h"
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namespace pregel {
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ListExpr ClosePregelWorkers::typeMapping(ListExpr args) {
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if(!nl->IsEmpty(args)){
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return listutils::typeError("No arguments expected");
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}
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return listutils::basicSymbol<CcInt>();
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}
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int ClosePregelWorkers::valueMapping(Word *args, Word &result, int,
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Word &, Supplier s) {
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result = qp->ResultStorage(s);
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CcInt* res = static_cast<CcInt*>(result.addr);
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int count = PregelContext::get().closeConnections();
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res->Set(true,count);
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return 0;
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}
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OperatorSpec ClosePregelWorkers::operatorSpec(
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" -> int",
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"closePregelWorkers ()",
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"This operator closes all existing connections to workers."
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"It returns the number of closed Connections.",
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"query closePregelConnections()"
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);
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Operator ClosePregelWorkers::closePregelWorkers(
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"closePregelConnections",
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ClosePregelWorkers::operatorSpec.getStr(),
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ClosePregelWorkers::valueMapping,
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Operator::SimpleSelect,
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ClosePregelWorkers::typeMapping
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);
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}
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