123 lines
2.9 KiB
C++
123 lines
2.9 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) 2012, University in Hagen, Department of 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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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[TOC] [\tableofcontents]
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//[_] [\_]
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//[&] [\&]
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//[x] [\ensuremath{\times}]
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//[->] [\ensuremath{\rightarrow}]
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//[>] [\ensuremath{>}]
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//[<] [\ensuremath{<}]
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//[ast] [\ensuremath{\ast}]
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*/
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/*
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[1] Class DServerCmdShuffleRec Implementation
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\begin{center}
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April 2012 Thomas Achmann
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\end{center}
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[TOC]
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0 Description
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Implementation of the class ~DServerCmdShuffleRec~
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1 Preliminaries
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1.1 Includes
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*/
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#include "DServerCmdShuffleRec.h"
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/*
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1.2 Debug Output
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uncomment the following line for debug output
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*/
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//#define DS_CMD_OPEN_REC_SHUFFLE_DEBUG 1
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/*
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2 Implementation
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2.1 Method ~void run~
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run method of the thread
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*/
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void
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DServerCmdShuffleRec::run()
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{
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if (!checkWorkerAvailable())
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return;
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#ifdef DS_CMD_OPEN_REC_SHUFFLE_DEBUG
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cout << (unsigned long)(this) << " DS_CMD_OPEN_REC_SHUFFLE - start" << endl;
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#endif
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//Initializes the writing of a tuple-stream,
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//the d_receive_shuffle operator is started on the remote worker
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if (!startWorkerStreamCommunication())
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{
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return;
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}
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string port = int2Str((getBasePortNr()+getIndex()));
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string com = "let r" + getWorker() -> getName() + getIndexStr() +
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" = " + "d_receive_shuffle(" +
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getWorker() -> getMasterHostIP_() + ",p" + port + ")";
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#ifdef DS_CMD_OPEN_REC_SHUFFLE_DEBUG
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cout << (unsigned long)(this) << " DS_CMD_OPEN_REC_SHUFFLE - on"
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<< getWorker() -> getMasterHostIP_() << ":" << port << ":" << endl
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<< com << endl;
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#endif
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// initiate d_receive_shuffle command on the destination
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// worker
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//The d_receive_rel operator is invoked
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// this command is blocking, until DShuffle is done!
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if (!sendSecondoCmdToWorkerSOS(com))
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{
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string err;
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if (hasCmdError())
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err = getCmdErrorText();
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else
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err = "Could not start receiver function on worker!";
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setErrorText(err);
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return;
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}
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#ifdef DS_CMD_OPEN_REC_SHUFFLE_DEBUG
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cout << (unsigned long)(this) << " DS_CMD_OPEN_REC_SHUFFLE - done" << endl;
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#endif
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} // run()
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