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/*
* FeatureWorkerManager.h - class for managing feature worker instances
*
* Copyright (c) 2017-2021 Tobias Junghans <tobydox@veyon.io>
*
* This file is part of Veyon - https://veyon.io
*
* This program 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.
*
* This program 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 this program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#pragma once
#include <QMutex>
#include <QPointer>
#include <QProcess>
#include <QTcpServer>
#include <QTcpSocket>
#include "FeatureMessage.h"
class FeatureManager;
class VeyonServerInterface;
class VEYON_CORE_EXPORT FeatureWorkerManager : public QObject
{
Q_OBJECT
public:
FeatureWorkerManager( VeyonServerInterface& server, FeatureManager& featureManager, QObject* parent = nullptr );
~FeatureWorkerManager() override;
bool startManagedSystemWorker( Feature::Uid featureUid );
bool startUnmanagedSessionWorker( Feature::Uid featureUid );
bool stopWorker( Feature::Uid featureUid );
void sendMessageToManagedSystemWorker( const FeatureMessage& message );
void sendMessageToUnmanagedSessionWorker( const FeatureMessage& message );
bool isWorkerRunning( Feature::Uid featureUid );
FeatureUidList runningWorkers();
private:
void acceptConnection();
void processConnection( QTcpSocket* socket );
void closeConnection( QTcpSocket* socket );
void sendMessage( const FeatureMessage& message );
void sendPendingMessages();
static constexpr auto UnmanagedSessionProcessRetryInterval = 5000;
VeyonServerInterface& m_server;
FeatureManager& m_featureManager;
QTcpServer m_tcpServer;
struct Worker
{
QPointer<QTcpSocket> socket;
QPointer<QProcess> process;
QList<FeatureMessage> pendingMessages;
};
using WorkerMap = QMap<Feature::Uid, Worker>;
WorkerMap m_workers;
QMutex m_workersMutex;
} ;
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