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2026-01-23 17:03:45 +08:00

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/*
----
This file is part of SECONDO.
Copyright (C) 2004, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
//paragraph [1] Title: [{\Large \bf \begin {center}] [\end {center}}]
//[TOC] [\tableofcontents]
[1] Header File of the class ~PregelAlgebra~
November 2018, J. Mende
[TOC]
1 Overview
This header file defines the class Monitor
2 Defines and includes
*/
#ifndef SECONDO_COMPUTEMESSAGINGCONTEXT_H
#define SECONDO_COMPUTEMESSAGINGCONTEXT_H
#include <utility>
#include <iostream>
#include <string>
#include <boost/thread/mutex.hpp>
#include <boost/thread/condition_variable.hpp>
#include <boost/log/trivial.hpp>
namespace pregel {
class Monitor {
public:
Monitor(unsigned long numberOfServers,
std::function<void(bool empty)> finishCallback);
void empty();
void finish();
std::ostream& print(std::ostream& out, const std::string& indent) const;
private:
unsigned long finishedWorkerCounter;
std::function<void(bool empty)> callback;
bool allEmpty = true;
boost::mutex counterLock;
};
}
#endif //SECONDO_COMPUTEMESSAGINGCONTEXT_H