/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/
#include "memoryusagemodel.h"
#include "qmldebug/qmlprofilereventtypes.h"
#include "qmlprofiler/qmlprofilermodelmanager.h"
#include "qmlprofiler/abstracttimelinemodel_p.h"
#include
namespace QmlProfilerExtension {
namespace Internal {
using namespace QmlProfiler;
class MemoryUsageModel::MemoryUsageModelPrivate : public AbstractTimelineModelPrivate
{
public:
static QString memoryTypeName(int type);
QVector data;
qint64 maxSize;
private:
Q_DECLARE_PUBLIC(MemoryUsageModel)
};
MemoryUsageModel::MemoryUsageModel(QObject *parent)
: AbstractTimelineModel(new MemoryUsageModelPrivate(),
tr(QmlProfilerModelManager::featureName(QmlDebug::ProfileMemory)),
QmlDebug::MemoryAllocation, QmlDebug::MaximumRangeType, parent)
{
}
quint64 MemoryUsageModel::features() const
{
// Will listen to all range events, too, to determine context.
return (1 << QmlDebug::ProfileMemory) | QmlDebug::Constants::QML_JS_RANGE_FEATURES;
}
int MemoryUsageModel::rowMaxValue(int rowNumber) const
{
Q_D(const MemoryUsageModel);
Q_UNUSED(rowNumber);
return d->maxSize;
}
int MemoryUsageModel::row(int index) const
{
Q_D(const MemoryUsageModel);
QmlDebug::MemoryType type = d->data[index].type;
if (type == QmlDebug::HeapPage || type == QmlDebug::LargeItem)
return 1;
else
return 2;
}
int MemoryUsageModel::selectionId(int index) const
{
Q_D(const MemoryUsageModel);
return d->data[index].type;
}
QColor MemoryUsageModel::color(int index) const
{
return colorBySelectionId(index);
}
float MemoryUsageModel::relativeHeight(int index) const
{
Q_D(const MemoryUsageModel);
return qMin(1.0f, (float)d->data[index].size / (float)d->maxSize);
}
QVariantMap MemoryUsageModel::location(int index) const
{
static const QLatin1String file("file");
static const QLatin1String line("line");
static const QLatin1String column("column");
Q_D(const MemoryUsageModel);
QVariantMap result;
int originType = d->data[index].originTypeIndex;
if (originType > -1) {
const QmlDebug::QmlEventLocation &location =
d->modelManager->qmlModel()->getEventTypes().at(originType).location;
result.insert(file, location.filename);
result.insert(line, location.line);
result.insert(column, location.column);
}
return result;
}
QVariantList MemoryUsageModel::labels() const
{
Q_D(const MemoryUsageModel);
QVariantList result;
if (d->expanded && !d->hidden && !isEmpty()) {
{
QVariantMap element;
element.insert(QLatin1String("description"), QVariant(tr("Memory Allocation")));
element.insert(QLatin1String("id"), QVariant(QmlDebug::HeapPage));
result << element;
}
{
QVariantMap element;
element.insert(QLatin1String("description"), QVariant(tr("Memory Usage")));
element.insert(QLatin1String("id"), QVariant(QmlDebug::SmallItem));
result << element;
}
}
return result;
}
QVariantMap MemoryUsageModel::details(int index) const
{
Q_D(const MemoryUsageModel);
QVariantMap result;
const MemoryAllocation *ev = &d->data[index];
if (ev->allocated >= -ev->deallocated)
result.insert(QLatin1String("displayName"), tr("Memory Allocated"));
else
result.insert(QLatin1String("displayName"), tr("Memory Freed"));
result.insert(tr("Total"), QString::fromLatin1("%1 bytes").arg(ev->size));
if (ev->allocations > 0) {
result.insert(tr("Allocated"), QString::fromLatin1("%1 bytes").arg(ev->allocated));
result.insert(tr("Allocations"), QString::number(ev->allocations));
}
if (ev->deallocations > 0) {
result.insert(tr("Deallocated"), QString::fromLatin1("%1 bytes").arg(-ev->deallocated));
result.insert(tr("Deallocations"), QString::number(ev->deallocations));
}
result.insert(tr("Type"), QVariant(MemoryUsageModelPrivate::memoryTypeName(ev->type)));
if (ev->originTypeIndex != -1) {
result.insert(tr("Location"),
d->modelManager->qmlModel()->getEventTypes().at(ev->originTypeIndex).displayName);
}
return result;
}
struct RangeStackFrame {
RangeStackFrame() : originTypeIndex(-1), startTime(-1), endTime(-1) {}
RangeStackFrame(int originTypeIndex, qint64 startTime, qint64 endTime) :
originTypeIndex(originTypeIndex), startTime(startTime), endTime(endTime) {}
int originTypeIndex;
qint64 startTime;
qint64 endTime;
};
void MemoryUsageModel::loadData()
{
Q_D(MemoryUsageModel);
clear();
QmlProfilerDataModel *simpleModel = d->modelManager->qmlModel();
if (simpleModel->isEmpty())
return;
qint64 currentSize = 0;
qint64 currentUsage = 0;
int currentUsageIndex = -1;
int currentJSHeapIndex = -1;
QStack rangeStack;
MemoryAllocation dummy;
const QVector &types = simpleModel->getEventTypes();
foreach (const QmlProfilerDataModel::QmlEventData &event, simpleModel->getEvents()) {
const QmlProfilerDataModel::QmlEventTypeData &type = types[event.typeIndex];
while (!rangeStack.empty() && rangeStack.top().endTime < event.startTime)
rangeStack.pop();
if (!accepted(type)) {
if (type.rangeType != QmlDebug::MaximumRangeType) {
rangeStack.push(RangeStackFrame(event.typeIndex, event.startTime,
event.startTime + event.duration));
}
continue;
}
if (type.detailType == QmlDebug::SmallItem || type.detailType == QmlDebug::LargeItem) {
MemoryAllocation &last = currentUsageIndex > -1 ? d->data[currentUsageIndex] : dummy;
if (!rangeStack.empty() && type.detailType == last.type &&
last.originTypeIndex == rangeStack.top().originTypeIndex &&
rangeStack.top().startTime < range(currentUsageIndex).start) {
last.update(event.numericData1);
currentUsage = last.size;
} else {
MemoryAllocation allocation(QmlDebug::SmallItem, currentUsage,
rangeStack.empty() ? -1 : rangeStack.top().originTypeIndex);
allocation.update(event.numericData1);
currentUsage = allocation.size;
if (currentUsageIndex != -1) {
insertEnd(currentUsageIndex,
event.startTime - range(currentUsageIndex).start - 1);
}
currentUsageIndex = insertStart(event.startTime, event.typeIndex);
d->data.insert(currentUsageIndex, allocation);
}
}
if (type.detailType == QmlDebug::HeapPage || type.detailType == QmlDebug::LargeItem) {
MemoryAllocation &last = currentJSHeapIndex > -1 ? d->data[currentJSHeapIndex] : dummy;
if (!rangeStack.empty() && type.detailType == last.type &&
last.originTypeIndex == rangeStack.top().originTypeIndex &&
rangeStack.top().startTime < range(currentJSHeapIndex).start) {
last.update(event.numericData1);
currentSize = last.size;
} else {
MemoryAllocation allocation((QmlDebug::MemoryType)type.detailType, currentSize,
rangeStack.empty() ? -1 : rangeStack.top().originTypeIndex);
allocation.update(event.numericData1);
currentSize = allocation.size;
if (currentSize > d->maxSize)
d->maxSize = currentSize;
if (currentJSHeapIndex != -1)
insertEnd(currentJSHeapIndex,
event.startTime - range(currentJSHeapIndex).start - 1);
currentJSHeapIndex = insertStart(event.startTime, event.typeIndex);
d->data.insert(currentJSHeapIndex, allocation);
}
}
d->modelManager->modelProxyCountUpdated(d->modelId, count(),
simpleModel->getEvents().count());
}
if (currentJSHeapIndex != -1)
insertEnd(currentJSHeapIndex, traceEndTime() - range(currentJSHeapIndex).start - 1);
if (currentUsageIndex != -1)
insertEnd(currentUsageIndex, traceEndTime() - range(currentUsageIndex).start - 1);
computeNesting();
d->expandedRowCount = d->collapsedRowCount = 3;
d->modelManager->modelProxyCountUpdated(d->modelId, 1, 1);
}
void MemoryUsageModel::clear()
{
Q_D(MemoryUsageModel);
d->data.clear();
d->maxSize = 1;
AbstractTimelineModel::clear();
}
QString MemoryUsageModel::MemoryUsageModelPrivate::memoryTypeName(int type)
{
switch (type) {
case QmlDebug::HeapPage: return tr("Heap Allocation");
case QmlDebug::LargeItem: return tr("Large Item Allocation");
case QmlDebug::SmallItem: return tr("Heap Usage");
case QmlDebug::MaximumMemoryType: return tr("Total");
default: return tr("Unknown");
}
}
MemoryUsageModel::MemoryAllocation::MemoryAllocation(QmlDebug::MemoryType type, qint64 baseAmount,
int originTypeIndex) :
type(type), size(baseAmount), allocated(0), deallocated(0), allocations(0), deallocations(0),
originTypeIndex(originTypeIndex)
{
}
void MemoryUsageModel::MemoryAllocation::update(qint64 amount)
{
size += amount;
if (amount < 0) {
deallocated += amount;
++deallocations;
} else {
allocated += amount;
++allocations;
}
}
} // namespace Internal
} // namespace QmlProfilerExtension