QmlProfiler: Use data replay feature for saving traces

This removes the last access to the master event list, which allows
us to also remove the accessor function.

Change-Id: I0e70c2eb23d2b11aa8b131c03eb3adfad1a9b9e7
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

src/plugins/qmlprofiler/qmlprofilerdatamodel.cpp

@@ -126,12 +126,6 @@ QmlProfilerDataModel::~QmlProfilerDataModel()
     delete d;
 }
 
-const QVector<QmlEvent> &QmlProfilerDataModel::events() const
-{
-    Q_D(const QmlProfilerDataModel);
-    return d->eventList;
-}
-
 const QVector<QmlEventType> &QmlProfilerDataModel::eventTypes() const
 {
     Q_D(const QmlProfilerDataModel);

src/plugins/qmlprofiler/qmlprofilerdatamodel.h

@@ -45,7 +45,6 @@ public:
                                   QmlProfilerModelManager *parent);
     ~QmlProfilerDataModel();
 
-    const QVector<QmlEvent> &events() const;
     const QVector<QmlEventType> &eventTypes() const;
     void setData(qint64 traceStart, qint64 traceEnd, const QVector<QmlEventType> &types,
                  const QVector<QmlEvent> &events);

src/plugins/qmlprofiler/qmlprofilermodelmanager.cpp

@@ -302,7 +302,7 @@ void QmlProfilerModelManager::save(const QString &filename)
     QmlProfilerFileWriter *writer = new QmlProfilerFileWriter(this);
     writer->setTraceTime(traceTime()->startTime(), traceTime()->endTime(),
                         traceTime()->duration());
-    writer->setData(d->model->eventTypes(), d->model->events());
+    writer->setData(d->model);
     writer->setNotes(d->notesModel->notes());
 
     connect(writer, &QObject::destroyed, this, &QmlProfilerModelManager::saveFinished,

src/plugins/qmlprofiler/qmlprofilertracefile.cpp

@@ -504,11 +504,9 @@ void QmlProfilerFileWriter::setTraceTime(qint64 startTime, qint64 endTime, qint6
     m_measuredTime = measuredTime;
 }
 
-void QmlProfilerFileWriter::setData(const QVector<QmlEventType> &types,
-                                         const QVector<QmlEvent> &events)
+void QmlProfilerFileWriter::setData(const QmlProfilerDataModel *model)
 {
-    m_eventTypes = types;
-    m_events = events;
+    m_model = model;
 }
 
 void QmlProfilerFileWriter::setNotes(const QVector<QmlNote> &notes)
@@ -524,8 +522,8 @@ void QmlProfilerFileWriter::setFuture(QFutureInterface<void> *future)
 void QmlProfilerFileWriter::save(QIODevice *device)
 {
     if (m_future) {
-        m_future->setProgressRange(0,
-            qMax(m_eventTypes.size() + m_events.size() + m_notes.size(), 1));
+        m_future->setProgressRange(
+                    0, qMax(m_model->eventTypes().size() + m_model->count() + m_notes.size(), 1));
         m_future->setProgressValue(0);
         m_newProgressValue = 0;
     }
@@ -544,11 +542,12 @@ void QmlProfilerFileWriter::save(QIODevice *device)
     stream.writeStartElement(_("eventData"));
     stream.writeAttribute(_("totalTime"), QString::number(m_measuredTime));
 
-    for (int typeIndex = 0; typeIndex < m_eventTypes.size(); ++typeIndex) {
+    const QVector<QmlEventType> &eventTypes = m_model->eventTypes();
+    for (int typeIndex = 0; typeIndex < eventTypes.size(); ++typeIndex) {
         if (isCanceled())
             return;
 
-        const QmlEventType &type = m_eventTypes[typeIndex];
+        const QmlEventType &type = eventTypes[typeIndex];
 
         stream.writeStartElement(_("event"));
         stream.writeAttribute(_("index"), QString::number(typeIndex));
@@ -596,15 +595,14 @@ void QmlProfilerFileWriter::save(QIODevice *device)
     stream.writeStartElement(_("profilerDataModel"));
 
     QStack<QmlEvent> stack;
-    for (int rangeIndex = 0; rangeIndex < m_events.size(); ++rangeIndex) {
+    m_model->replayEvents(-1, -1, [this, &stack, &stream](const QmlEvent &event,
+                                                          const QmlEventType &type) {
         if (isCanceled())
             return;
 
-        const QmlEvent &event = m_events[rangeIndex];
-        const QmlEventType &type = m_eventTypes[event.typeIndex()];
         if (type.rangeType != MaximumRangeType && event.rangeStage() == RangeStart) {
             stack.push(event);
-            continue;
+            return;
         }
 
         stream.writeStartElement(_("range"));
@@ -666,7 +664,7 @@ void QmlProfilerFileWriter::save(QIODevice *device)
 
         stream.writeEndElement();
         incrementProgress();
-    }
+    });
     stream.writeEndElement(); // profilerDataModel
 
     stream.writeStartElement(_("noteData"));

src/plugins/qmlprofiler/qmlprofilertracefile.h

@@ -88,7 +88,7 @@ public:
     explicit QmlProfilerFileWriter(QObject *parent = 0);
 
     void setTraceTime(qint64 startTime, qint64 endTime, qint64 measturedTime);
-    void setData(const QVector<QmlEventType> &types, const QVector<QmlEvent> &events);
+    void setData(const QmlProfilerDataModel *model);
     void setNotes(const QVector<QmlNote> &notes);
     void setFuture(QFutureInterface<void> *future);
 
@@ -101,8 +101,7 @@ private:
 
     qint64 m_startTime, m_endTime, m_measuredTime;
     QFutureInterface<void> *m_future;
-    QVector<QmlEventType> m_eventTypes;
-    QVector<QmlEvent> m_events;
+    const QmlProfilerDataModel *m_model;
     QVector<QmlNote> m_notes;
     int m_newProgressValue;
 };