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/*
* Copyright (C) 2016 Christian Mollekopf <chrigi_1@fastmail.fm>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) version 3, or any
* later version accepted by the membership of KDE e.V. (or its
* successor approved by the membership of KDE e.V.), which shall
* act as a proxy defined in Section 6 of version 3 of the license.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "sink_export.h"
#include <QObject>
#include <QTimer>
#include <Async/Async>
#include <functional>
#include "log.h"
#include "notification.h"
#include "messagequeue.h"
namespace Sink {
class Pipeline;
class Inspector;
class Synchronizer;
class QueuedCommand;
class QueryBase;
/**
* Drives the pipeline using the output from all command queues
*/
class CommandProcessor : public QObject
{
Q_OBJECT
SINK_DEBUG_AREA("commandprocessor")
public:
CommandProcessor(Sink::Pipeline *pipeline, const QByteArray &instanceId);
void setOldestUsedRevision(qint64 revision);
void setInspector(const QSharedPointer<Inspector> &inspector);
void setSynchronizer(const QSharedPointer<Synchronizer> &synchronizer);
void processCommand(int commandId, const QByteArray &data);
KAsync::Job<void> processAllMessages();
signals:
void notify(Notification);
void error(int errorCode, const QString &errorMessage);
private:
bool messagesToProcessAvailable();
private slots:
void process();
KAsync::Job<qint64> processQueuedCommand(const Sink::QueuedCommand *queuedCommand);
KAsync::Job<qint64> processQueuedCommand(const QByteArray &data);
// Process all messages of this queue
KAsync::Job<void> processQueue(MessageQueue *queue);
KAsync::Job<void> processPipeline();
private:
void processFlushCommand(const QByteArray &data);
void processSynchronizeCommand(const QByteArray &data);
// void processRevisionReplayedCommand(const QByteArray &data);
KAsync::Job<void> flush(void const *command, size_t size);
Sink::Pipeline *mPipeline;
MessageQueue mUserQueue;
MessageQueue mSynchronizerQueue;
// Ordered by priority
QList<MessageQueue *> mCommandQueues;
bool mProcessingLock;
// The lowest revision we no longer need
qint64 mLowerBoundRevision;
QSharedPointer<Synchronizer> mSynchronizer;
QSharedPointer<Inspector> mInspector;
QTimer mCommitQueueTimer;
};
};
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