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/*
* Copyright (C) 2014 Aaron Seigo <aseigo@kde.org>
*
* 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; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "sink_export.h"
#include <QObject>
#include <QPointer>
#include <QLocalSocket>
#include <flatbuffers/flatbuffers.h>
#include <log.h>
namespace Sink {
class Resource;
class Notification;
}
class QTimer;
class QLocalServer;
class Client
{
public:
Client() : socket(nullptr), currentRevision(0)
{
}
Client(const QString &n, QLocalSocket *s) : name(n), socket(s), currentRevision(0)
{
}
QString name;
QPointer<QLocalSocket> socket;
QByteArray commandBuffer;
qint64 currentRevision;
};
class SINK_EXPORT Listener : public QObject
{
Q_OBJECT
public:
Listener(const QByteArray &resourceName, const QByteArray &resourceType, QObject *parent = nullptr);
~Listener();
void checkForUpgrade();
signals:
void noClients();
public slots:
void closeAllConnections();
void emergencyAbortAllConnections();
private slots:
void acceptConnection();
void clientDropped();
void checkConnections();
void onDataAvailable();
void processClientBuffers();
void refreshRevision(qint64);
void notify(const Sink::Notification &);
void quit();
private:
void processCommand(int commandId, uint messageId, const QByteArray &commandBuffer, Client &client, const std::function<void(bool)> &callback);
bool processClientBuffer(Client &client);
void sendCommandCompleted(QLocalSocket *socket, uint messageId, bool success);
void updateClientsWithRevision(qint64);
Sink::Resource &loadResource();
void readFromSocket(QLocalSocket *socket);
void sendShutdownNotification();
qint64 lowerBoundRevision();
std::unique_ptr<QLocalServer> m_server;
QVector<Client> m_connections;
flatbuffers::FlatBufferBuilder m_fbb;
const QByteArray m_resourceName;
const QByteArray m_resourceInstanceIdentifier;
std::unique_ptr<Sink::Resource> m_resource;
std::unique_ptr<QTimer> m_clientBufferProcessesTimer;
std::unique_ptr<QTimer> m_checkConnectionsTimer;
int m_messageId;
bool m_exiting;
};
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