125 lines
2.6 KiB
C++
125 lines
2.6 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 header file defines the class MessageServer
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2 Defines and includes
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*/
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#ifndef SECONDO_MESSAGESERVER_H
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#define SECONDO_MESSAGESERVER_H
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#include <string>
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#include <functional>
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#include <SocketIO.h>
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#include <memory>
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#include <boost/thread.hpp>
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#include "DoubleQueue.h"
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#include "Monitor.h"
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#include "../typedefs.h"
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namespace pregel {
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class MessageServer {
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private:
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enum State {
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READING,
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WAITING
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};
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State state = WAITING;
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boost::mutex stateLock;
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boost::condition_variable stateCondition;
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std::shared_ptr<Monitor> monitor = nullptr;
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executable initDoneCallback;
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boost::thread *thread = nullptr;
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std::shared_ptr<Socket> socket;
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DoubleQueue messageQueue;
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boost::mutex monitormtx;
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boost::condition_variable monitorCond;
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public:
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explicit MessageServer(std::shared_ptr<Socket> socket,
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executable initDoneCallback);
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virtual ~MessageServer();
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void run();
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void startReading();
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void requestPause();
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void interrupt();
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void setMonitor(std::shared_ptr<Monitor> monitor);
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void drainBuffer(const consumer2<MessageWrapper> &consumer,
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const int round);
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void healthReport(std::stringstream &sstream);
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std::string stateStr() const;
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private:
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void waitToResumeReading();
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void processMessage();
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void handleEmptyMessage();
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void handleFinishedMessage();
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void handleInitDoneMessage();
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void updateRound();
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void inline addMessage(std::shared_ptr<MessageWrapper> message);
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bool stateIs(State state);
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void setState(State state, bool notify = true);
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void bringAllMessagesToRound(const int round);
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};
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}
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#endif //SECONDO_MESSAGESERVER_H
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