Move the commandprocessor to a separate file.

1 files changed, 79 insertions, 0 deletions

diff --git a/common/commandprocessor.h b/common/commandprocessor.h
new file mode 100644
index 0000000..51d845e
--- /dev/null
+++ b/common/commandprocessor.h
@@ -0,0 +1,79 @@
+/*
+ * 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 <Async/Async>
+#include <functional>
+#include "log.h"
+
+class MessageQueue;
+
+namespace Sink {
+    class Pipeline;
+    class QueuedCommand;
+
+/**
+ * Drives the pipeline using the output from all command queues
+ */
+class CommandProcessor : public QObject
+{
+    Q_OBJECT
+    typedef std::function<KAsync::Job<void>(void const *, size_t)> InspectionFunction;
+    typedef std::function<KAsync::Job<void>(void const *, size_t)> FlushFunction;
+    SINK_DEBUG_AREA("commandprocessor")
+
+public:
+    CommandProcessor(Sink::Pipeline *pipeline, QList<MessageQueue *> commandQueues);
+
+    void setOldestUsedRevision(qint64 revision);
+
+    void setInspectionCommand(const InspectionFunction &f);
+
+    void setFlushCommand(const FlushFunction &f);
+
+signals:
+    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:
+    Sink::Pipeline *mPipeline;
+    // Ordered by priority
+    QList<MessageQueue *> mCommandQueues;
+    bool mProcessingLock;
+    // The lowest revision we no longer need
+    qint64 mLowerBoundRevision;
+    InspectionFunction mInspect;
+    FlushFunction mFlush;
+};
+
+};