File indexing completed on 2024-05-12 05:25:57

 /*
  * 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 <QTime>
 #include <KAsync/Async>
 #include <functional>
 
 #include "log.h"
 #include "notification.h"
 #include "messagequeue.h"
 
 namespace Sink {
     class Pipeline;
     class Inspector;
     class Synchronizer;
     struct QueuedCommand;
     class QueryBase;
 
 /**
  * Drives the pipeline using the output from all command queues
  */
 class SINK_EXPORT CommandProcessor : public QObject
 {
     Q_OBJECT
 
 public:
     CommandProcessor(Sink::Pipeline *pipeline, const QByteArray &instanceId, const Sink::Log::Context &ctx);
 
     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::Log::Context mLogCtx;
     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;
     QTime mTime;
     QVector<QByteArray> mCompleteFlushes;
 };
 
 };