105 lines
2.6 KiB
C++
105 lines
2.6 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) 2017,
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Faculty of Mathematics and 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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*/
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#include "StringUtils.h"
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#include "Algebras/DBService/MultiClientServer.hpp"
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namespace DBService {
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MultiClientServer::MultiClientServer(int port) :
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Server(port)
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{}
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MultiClientServer::~MultiClientServer()
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{}
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int MultiClientServer::start()
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{
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listener = Socket::CreateGlobal("localhost", stringutils::int2str(port));
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if (!listener->IsOk())
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{
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return 1;
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}
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const size_t MAX_THREADS = 256;
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boost::thread_group threads;
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for(size_t i = 0; i < MAX_THREADS; i++)
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{
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threads.create_thread(boost::bind(
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&MultiClientServer::handleCommunicationThread, this));
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}
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while(true)
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{
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// wait for incoming connections and pass them to the worker threads
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Socket* serverConnection = listener->Accept();
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if (!serverConnection->IsOk())
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{
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return 2;
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}
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boost::unique_lock<boost::mutex> lock(queueGuard);
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socketBuffer.push(serverConnection);
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queueIndicator.notify_one();
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}
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threads.interrupt_all(); // interrupt the threads (at queueGuard.wait())
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threads.join_all(); // wait for all threads to finish
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listener->Close();
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return 0;
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}
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bool MultiClientServer::handleCommunicationThread()
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{
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while(true)
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{
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//boost::this_thread::get_id();
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try
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{
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boost::unique_lock<boost::mutex> lock(queueGuard);
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queueIndicator.wait(lock);
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}
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catch (boost::thread_interrupted)
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{
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return false;
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}
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boost::unique_lock<boost::mutex> lock(queueGuard);
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assert(!socketBuffer.empty());
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Socket* server = socketBuffer.front();
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socketBuffer.pop();
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lock.unlock();
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communicate(server->GetSocketStream());
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}
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}
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} /* namespace DBService */
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