LocalSink: refactored LocalSinkThread to LocalSinkWorker object moved to thread. Equivalent to FileInput changes

plugins/channelrx/localsink/CMakeLists.txt

@@ -6,7 +6,7 @@ set(localsink_SOURCES
     localsinksink.cpp
     localsinksettings.cpp
     localsinkwebapiadapter.cpp
-    localsinkthread.cpp
+    localsinkworker.cpp
     localsinkplugin.cpp
 )
 
@@ -16,7 +16,7 @@ set(localsink_HEADERS
     localsinksink.h
     localsinksettings.h
     localsinkwebapiadapter.h
-	localsinkthread.h
+	localsinkworker.h
 	localsinkplugin.h
 )
 

plugins/channelrx/localsink/localsinksink.cpp

@@ -22,11 +22,11 @@
 #include "dsp/devicesamplesource.h"
 #include "dsp/hbfilterchainconverter.h"
 
-#include "localsinkthread.h"
+#include "localsinkworker.h"
 #include "localsinksink.h"
 
 LocalSinkSink::LocalSinkSink() :
-        m_sinkThread(nullptr),
+        m_sinkWorker(nullptr),
         m_running(false),
         m_centerFrequency(0),
         m_frequencyOffset(0),
@@ -54,22 +54,23 @@ void LocalSinkSink::start(DeviceSampleSource *deviceSource)
         stop();
     }
 
-    m_sinkThread = new LocalSinkThread();
-    m_sinkThread->setSampleFifo(&m_sampleFifo);
+    m_sinkWorker = new LocalSinkWorker();
+    m_sinkWorker->moveToThread(&m_sinkWorkerThread);
+    m_sinkWorker->setSampleFifo(&m_sampleFifo);
 
     if (deviceSource) {
-        m_sinkThread->setDeviceSampleFifo(deviceSource->getSampleFifo());
+        m_sinkWorker->setDeviceSampleFifo(deviceSource->getSampleFifo());
     }
 
     QObject::connect(
         &m_sampleFifo,
         &SampleSinkFifo::dataReady,
-        m_sinkThread,
-        &LocalSinkThread::handleData,
+        m_sinkWorker,
+        &LocalSinkWorker::handleData,
         Qt::QueuedConnection
     );
 
-    m_sinkThread->startStop(true);
+    startWorker();
     m_running = true;
 }
 
@@ -80,20 +81,33 @@ void LocalSinkSink::stop()
     QObject::disconnect(
         &m_sampleFifo,
         &SampleSinkFifo::dataReady,
-        m_sinkThread,
-        &LocalSinkThread::handleData
+        m_sinkWorker,
+        &LocalSinkWorker::handleData
     );
 
-    if (m_sinkThread != 0)
+    if (m_sinkWorker != 0)
     {
-        m_sinkThread->startStop(false);
-        m_sinkThread->deleteLater();
-        m_sinkThread = 0;
+        stopWorker();
+        m_sinkWorker->deleteLater();
+        m_sinkWorker = nullptr;
     }
 
     m_running = false;
 }
 
+void LocalSinkSink::startWorker()
+{
+	m_sinkWorker->startStop(true);
+	m_sinkWorkerThread.start();
+}
+
+void LocalSinkSink::stopWorker()
+{
+	m_sinkWorker->startStop(false);
+	m_sinkWorkerThread.quit();
+	m_sinkWorkerThread.wait();
+}
+
 void LocalSinkSink::applySettings(const LocalSinkSettings& settings, bool force)
 {
     qDebug() << "LocalSinkSink::applySettings:"

plugins/channelrx/localsink/localsinksink.h

@@ -19,13 +19,14 @@
 #define INCLUDE_LOCALSINKSINK_H_
 
 #include <QObject>
+#include <QThread>
 
 #include "dsp/channelsamplesink.h"
 
 #include "localsinksettings.h"
 
 class DeviceSampleSource;
-class LocalSinkThread;
+class LocalSinkWorker;
 
 class LocalSinkSink : public QObject, public ChannelSampleSink {
     Q_OBJECT
@@ -44,7 +45,8 @@ public:
 private:
     SampleSinkFifo m_sampleFifo;
     LocalSinkSettings m_settings;
-    LocalSinkThread *m_sinkThread;
+    LocalSinkWorker *m_sinkWorker;
+    QThread m_sinkWorkerThread;
     bool m_running;
 
     uint64_t m_centerFrequency;
@@ -52,6 +54,8 @@ private:
     uint32_t m_sampleRate;
     uint32_t m_deviceSampleRate;
 
+	void startWorker();
+	void stopWorker();
 };
 
 #endif // INCLUDE_LOCALSINKSINK_H_

plugins/channelrx/localsink/localsinkworker.cpp

@@ -17,62 +17,41 @@
 
 #include "dsp/samplesinkfifo.h"
 
-#include "localsinkthread.h"
+#include "localsinkworker.h"
 
-MESSAGE_CLASS_DEFINITION(LocalSinkThread::MsgStartStop, Message)
+MESSAGE_CLASS_DEFINITION(LocalSinkWorker::MsgStartStop, Message)
 
-LocalSinkThread::LocalSinkThread(QObject* parent) :
-    QThread(parent),
+LocalSinkWorker::LocalSinkWorker(QObject* parent) :
+    QObject(parent),
     m_running(false),
     m_sampleFifo(0)
 {
     connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()), Qt::QueuedConnection);
 }
 
-LocalSinkThread::~LocalSinkThread()
+LocalSinkWorker::~LocalSinkWorker()
 {
-    qDebug("LocalSinkThread::~LocalSinkThread");
+    qDebug("LocalSinkWorker::~LocalSinkWorker");
 }
 
-void LocalSinkThread::startStop(bool start)
+void LocalSinkWorker::startStop(bool start)
 {
     MsgStartStop *msg = MsgStartStop::create(start);
     m_inputMessageQueue.push(msg);
 }
 
-void LocalSinkThread::startWork()
+void LocalSinkWorker::startWork()
 {
-    qDebug("LocalSinkThread::startWork");
-	m_startWaitMutex.lock();
-	start();
-	while(!m_running)
-		m_startWaiter.wait(&m_startWaitMutex, 100);
-	m_startWaitMutex.unlock();
+    qDebug("LocalSinkWorker::startWork");
+    m_running = true;
 }
 
-void LocalSinkThread::stopWork()
+void LocalSinkWorker::stopWork()
 {
-	qDebug("LocalSinkThread::stopWork");
 	m_running = false;
-	wait();
 }
 
-void LocalSinkThread::run()
-{
-    qDebug("LocalSinkThread::run: begin");
-	m_running = true;
-	m_startWaiter.wakeAll();
-
-    while (m_running)
-    {
-        sleep(1); // Do nothing as everything is in the data handler (dequeuer)
-    }
-
-    m_running = false;
-    qDebug("LocalSinkThread::run: end");
-}
-
-void LocalSinkThread::handleData()
+void LocalSinkWorker::handleData()
 {
     while ((m_sampleFifo->fill() > 0) && (m_inputMessageQueue.size() == 0))
     {
@@ -100,7 +79,7 @@ void LocalSinkThread::handleData()
     }
 }
 
-void LocalSinkThread::handleInputMessages()
+void LocalSinkWorker::handleInputMessages()
 {
     Message* message;
 
@@ -109,7 +88,7 @@ void LocalSinkThread::handleInputMessages()
         if (MsgStartStop::match(*message))
         {
             MsgStartStop* notif = (MsgStartStop*) message;
-            qDebug("LocalSinkThread::handleInputMessages: MsgStartStop: %s", notif->getStartStop() ? "start" : "stop");
+            qDebug("LocalSinkWorker::handleInputMessages: MsgStartStop: %s", notif->getStartStop() ? "start" : "stop");
 
             if (notif->getStartStop()) {
                 startWork();

plugins/channelrx/localsink/localsinkworker.h

@@ -15,10 +15,10 @@
 // along with this program. If not, see <http://www.gnu.org/licenses/>.          //
 ///////////////////////////////////////////////////////////////////////////////////
 
-#ifndef PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKTHREAD_H_
-#define PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKTHREAD_H_
+#ifndef PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKWORKER_H_
+#define PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKWORKER_H_
 
-#include <QThread>
+#include <QObject>
 #include <QMutex>
 #include <QWaitCondition>
 
@@ -28,7 +28,7 @@
 
 class SampleSinkFifo;
 
-class LocalSinkThread : public QThread {
+class LocalSinkWorker : public QObject {
     Q_OBJECT
 
 public:
@@ -51,8 +51,8 @@ public:
         { }
     };
 
-    LocalSinkThread(QObject* parent = 0);
-    ~LocalSinkThread();
+    LocalSinkWorker(QObject* parent = 0);
+    ~LocalSinkWorker();
 
     void startStop(bool start);
     void setSampleFifo(SampleSinkFifo *sampleFifo) { m_sampleFifo = sampleFifo; }
@@ -62,21 +62,17 @@ public slots:
     void handleData(); //!< Handle data when samples have to be processed
 
 private:
-	QMutex m_startWaitMutex;
-	QWaitCondition m_startWaiter;
 	volatile bool m_running;
     SampleSinkFifo *m_sampleFifo;
     SampleSinkFifo *m_deviceSampleFifo;
-
     MessageQueue m_inputMessageQueue;
 
-    void startWork();
-    void stopWork();
-    void run();
+	void startWork();
+	void stopWork();
 
 private slots:
     void handleInputMessages();
 };
 
-#endif // PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKTHREAD_H_
+#endif // PLUGINS_CHANNELRX_LOCALSINK_LOCALSINKWORKER_H_