130 lines
2.8 KiB
C++
130 lines
2.8 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 MessageBroker
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2 Defines and includes
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*/
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#ifndef SECONDO_MESSAGEBROKER_H
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#define SECONDO_MESSAGEBROKER_H
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#include <list>
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#include <functional>
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#include <map>
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#include "MessageWrapper.h"
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#include "MessageServer.h"
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#include "MessageClient.h"
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#include "../Helpers/RemoteEndpoint.h"
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#include <boost/thread.hpp>
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namespace pregel {
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class MessageBroker {
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private:
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static MessageBroker broker;
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std::shared_ptr<boost::thread> tcpListener = nullptr;
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std::shared_ptr<Socket> globalSocket = nullptr;
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std::list<std::shared_ptr<MessageServer> > servers
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= std::list< std::shared_ptr<MessageServer> >();
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using mt = std::map<int, std::shared_ptr<MessageClient> >;
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mt slotToClient = mt();
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DoubleQueue inbox;
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void acceptConnections(int port);
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void collectFromAllServers(int superstep);
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public:
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MessageBroker();
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virtual ~MessageBroker();
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static MessageBroker &get();
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bool startTcpListener(const int port);
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bool startClient(int slot, RemoteEndpoint host);
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bool startLoopbackProxy(int slot);
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bool tcpListenerRunning();
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void pauseServers();
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void startServers();
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void stopServers(bool killThreads);
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void stopClients();
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void reset(const bool killThreads);
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void expectInitMessages();
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void startNewRound(bool &allEmpty, executable &callMeWhenYoureDone);
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unsigned long howManyMessagesInInbox(int superstep);
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supplier2<MessageWrapper>* inboxSupplier(const int superstep);
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void sendMessage(std::shared_ptr<MessageWrapper> message);
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void broadcastEmptyMessage();
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void broadcastFinishMessage();
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void broadcastInitDoneMessage();
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void healthReport(std::stringstream &);
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unsigned long numberOfClients() const;
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unsigned long numberOfServers() const;
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DoubleQueue& getInBox();
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void clearMessages();
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};
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}
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#endif //SECONDO_MESSAGEBROKER_H
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