83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, 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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//[TOC] [\tableofcontents]
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[1] Header File of the class ~PregelAlgebra~
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November 2018, J. Mende
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[TOC]
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1 Overview
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This file defines the members of class ComputeMonitor
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*/
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#include "Monitor.h"
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pregel::Monitor::Monitor(unsigned long numberOfServers,
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std::function<void(
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bool empty)> finishCallback)
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: finishedWorkerCounter(numberOfServers),
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callback(finishCallback), counterLock() {}
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void pregel::Monitor::empty() {
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boost::lock_guard<boost::mutex> guard(counterLock);
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--finishedWorkerCounter;
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bool allFinished;
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allFinished = finishedWorkerCounter == 0;
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if (!allFinished) {
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return;
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}
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callback(allEmpty);
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}
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void pregel::Monitor::finish() {
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boost::lock_guard<boost::mutex> guard(counterLock);
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allEmpty = false;
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--finishedWorkerCounter;
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bool allFinished;
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allFinished = finishedWorkerCounter == 0;
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if (!allFinished) {
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return;
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}
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callback(false);
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}
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std::ostream& pregel::Monitor::print(
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std::ostream& out,
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const std::string& indent) const{
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out << indent << "finishedWorkerCounter : " << finishedWorkerCounter
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<< std::endl;
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out << indent << "allEmpty : " << (allEmpty?"true":"false")
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<< std::endl;
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return out;
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}
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