106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2017,
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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 "Algebras/Distributed2/Dist2Helper.h"
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#include "Algebras/DBService2/DBServiceManager.hpp"
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#include "Algebras/DBService2/DebugOutput.hpp"
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#include "Algebras/DBService2/OperatorStartDBService.hpp"
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#include <loguru.hpp>
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using namespace std;
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extern boost::recursive_mutex nlparsemtx;
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namespace DBService
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{
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ListExpr OperatorStartDBService::mapType(ListExpr nestedList)
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{
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LOG_SCOPE_FUNCTION(INFO);
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print(nestedList, std::cout);
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LOG_F(INFO, "%s", "Acquiring lock for nlparsemtx...");
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boost::lock_guard<boost::recursive_mutex> guard(nlparsemtx);
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LOG_F(INFO, "%s", "Successfully acquired lock for nlparsemtx...");
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if (!nl->HasLength(nestedList, 0))
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{
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ErrorReporter::ReportError(
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"expected signature: (empty signature)");
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return nl->TypeError();
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}
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return listutils::basicSymbol<CcBool>();
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}
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int OperatorStartDBService::mapValue(Word* args,
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Word& result,
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int message,
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Word& local,
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Supplier s)
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{
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LOG_SCOPE_FUNCTION(INFO);
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result = qp->ResultStorage(s);
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CcBool* res = (CcBool*) result.addr;
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if( DBServiceManager::isActive()){
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res->Set(true,true);
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return 0;
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}
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// If invoked using a TTY, the TTY may create a transaction but we need
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// full control over transactions. So therefore we'll close any given
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// transaction to ensure that no transaction is running.
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if(!SecondoSystem::CommitTransaction(true))
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{
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LOG_F(INFO, "%s", "There was no transaction running.");
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}
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bool started = DBServiceManager::getInstance() != 0;
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LOG_F(INFO, "DBServiceManager instance available? %d", started);
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//TODO find out if there's a more elegant way...
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/* The test suite will commit many transactions but Secondo will attempt
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* to close
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* the transaction for the given operator. Therefore, here a transaction
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* will be opened
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* to satisfy this requirement for a successful operator execution.
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*/
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LOG_F(INFO, "%s", "Starting transaction... ");
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SecondoSystem::BeginTransaction();
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// qp->switchTransaction(s);
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res->Set(true,started);
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return 0;
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}
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}
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