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QmlProfiler: Fix crash when loading traces

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Don't keep a pointer to elements in QVector (which might get
relocated at any time). Instead, store the index.

Change-Id: If24a408b9f47f0f3a83909ff119867311d87d869
Reviewed-by: Christiaan Janssen <christiaan.janssen@nokia.com>
This commit is contained in:
Christiaan Janssen
2012-05-04 16:05:52 +02:00
committed by Kai Koehne
parent 1f4d831f8c
commit 5506d0329f
1 changed files with 15 additions and 12 deletions
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27
src/plugins/qmlprofiler/qmlprofilerdatamodel.cpp
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@@ -203,7 +203,7 @@ public:
qint64 traceStartTime;
qint64 qmlMeasuredTime;
QmlRangeEventStartInstance *lastFrameEvent;
int lastFrameEventIndex;
qint64 maxAnimationCount;
qint64 minAnimationCount;
@@ -226,7 +226,7 @@ QmlProfilerDataModel::QmlProfilerDataModel(QObject *parent) :
d->traceStartTime = -1;
d->qmlMeasuredTime = 0;
d->clearQmlRootEvent();
d->lastFrameEvent = 0;
d->lastFrameEventIndex = -1;
d->maxAnimationCount = 0;
d->minAnimationCount = 0;
d->v8DataModel = new QV8ProfilerDataModel(this, this);
@@ -283,7 +283,7 @@ void QmlProfilerDataModel::clear()
d->traceStartTime = -1;
d->qmlMeasuredTime = 0;
d->lastFrameEvent = 0;
d->lastFrameEventIndex = -1;
d->maxAnimationCount = 0;
d->minAnimationCount = 0;
@@ -401,11 +401,14 @@ void QmlProfilerDataModel::addFrameEvent(qint64 time, int framerate, int animati
qint64 length = 1e9/framerate;
// avoid overlap
if (d->lastFrameEvent &&
d->lastFrameEvent->startTime + d->lastFrameEvent->duration >= time) {
d->lastFrameEvent->duration = time - 1 - d->lastFrameEvent->startTime;
d->endInstanceList[d->lastFrameEvent->endTimeIndex].endTime =
d->lastFrameEvent->startTime + d->lastFrameEvent->duration;
QmlRangeEventStartInstance *lastFrameEvent = 0;
if (d->lastFrameEventIndex > -1) {
lastFrameEvent = &d->startInstanceList[d->lastFrameEventIndex];
if (lastFrameEvent->startTime + lastFrameEvent->duration >= time) {
lastFrameEvent->duration = time - 1 - lastFrameEvent->startTime;
d->endInstanceList[lastFrameEvent->endTimeIndex].endTime =
lastFrameEvent->startTime + lastFrameEvent->duration;
}
}
QmlRangeEventEndInstance endTimeData;
@@ -425,7 +428,7 @@ void QmlProfilerDataModel::addFrameEvent(qint64 time, int framerate, int animati
d->endInstanceList << endTimeData;
d->startInstanceList << startTimeData;
d->lastFrameEvent = &d->startInstanceList.last();
d->lastFrameEventIndex = d->startInstanceList.count() - 1;
emit countChanged();
}
@@ -941,13 +944,13 @@ void QmlProfilerDataModel::QmlProfilerDataModelPrivate::findAnimationLimits()
{
maxAnimationCount = 0;
minAnimationCount = 0;
lastFrameEvent = 0;
lastFrameEventIndex = -1;
for (int i = 0; i < startInstanceList.count(); i++) {
if (startInstanceList[i].statsInfo->eventType == QmlDebug::Painting &&
startInstanceList[i].animationCount >= 0) {
int animationcount = startInstanceList[i].animationCount;
if (lastFrameEvent) {
if (lastFrameEventIndex > -1) {
if (animationcount > maxAnimationCount)
maxAnimationCount = animationcount;
if (animationcount < minAnimationCount)
@@ -956,7 +959,7 @@ void QmlProfilerDataModel::QmlProfilerDataModelPrivate::findAnimationLimits()
maxAnimationCount = animationcount;
minAnimationCount = animationcount;
}
lastFrameEvent = &startInstanceList[i];
lastFrameEventIndex = i;
}
}
}