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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmlprofilerclient_p_p.h"
#include "qqmldebugconnection_p.h"
QT_BEGIN_NAMESPACE
QQmlProfilerClientPrivate::~QQmlProfilerClientPrivate()
{
}
int QQmlProfilerClientPrivate::resolveType(const QQmlProfilerTypedEvent &event)
{
int typeIndex = -1;
if (event.serverTypeId != 0) {
QHash<qint64, int>::ConstIterator it = serverTypeIds.constFind(event.serverTypeId);
if (it != serverTypeIds.constEnd()) {
typeIndex = it.value();
} else {
typeIndex = eventReceiver->numLoadedEventTypes();
eventReceiver->addEventType(event.type);
serverTypeIds[event.serverTypeId] = typeIndex;
}
} else {
QHash<QQmlProfilerEventType, int>::ConstIterator it = eventTypeIds.constFind(event.type);
if (it != eventTypeIds.constEnd()) {
typeIndex = it.value();
} else {
typeIndex = eventReceiver->numLoadedEventTypes();
eventReceiver->addEventType(event.type);
eventTypeIds[event.type] = typeIndex;
}
}
return typeIndex;
}
int QQmlProfilerClientPrivate::resolveStackTop()
{
if (rangesInProgress.isEmpty())
return -1;
QQmlProfilerTypedEvent &typedEvent = rangesInProgress.top();
int typeIndex = typedEvent.event.typeIndex();
if (typeIndex >= 0)
return typeIndex;
typeIndex = resolveType(typedEvent);
typedEvent.event.setTypeIndex(typeIndex);
while (!pendingMessages.isEmpty()
&& pendingMessages.head().timestamp() < typedEvent.event.timestamp()) {
forwardEvents(pendingMessages.dequeue());
}
forwardEvents(typedEvent.event);
return typeIndex;
}
void QQmlProfilerClientPrivate::forwardEvents(const QQmlProfilerEvent &last)
{
forwardDebugMessages(last.timestamp());
eventReceiver->addEvent(last);
}
void QQmlProfilerClientPrivate::forwardDebugMessages(qint64 untilTimestamp)
{
while (!pendingDebugMessages.isEmpty()
&& pendingDebugMessages.front().timestamp() <= untilTimestamp) {
eventReceiver->addEvent(pendingDebugMessages.dequeue());
}
}
void QQmlProfilerClientPrivate::processCurrentEvent()
{
// RangeData and RangeLocation always apply to the range on the top of the stack. Furthermore,
// all ranges are perfectly nested. This is why we can defer the type resolution until either
// the range ends or a child range starts. With only the information in RangeStart we wouldn't
// be able to uniquely identify the event type.
Message rangeStage = currentEvent.type.rangeType() == MaximumRangeType ?
currentEvent.type.message() : currentEvent.event.rangeStage();
switch (rangeStage) {
case RangeStart:
resolveStackTop();
rangesInProgress.push(currentEvent);
break;
case RangeEnd: {
int typeIndex = resolveStackTop();
if (typeIndex == -1)
break;
currentEvent.event.setTypeIndex(typeIndex);
while (!pendingMessages.isEmpty())
forwardEvents(pendingMessages.dequeue());
forwardEvents(currentEvent.event);
rangesInProgress.pop();
break;
}
case RangeData:
if (!rangesInProgress.isEmpty())
rangesInProgress.top().type.setData(currentEvent.type.data());
break;
case RangeLocation:
if (!rangesInProgress.isEmpty())
rangesInProgress.top().type.setLocation(currentEvent.type.location());
break;
case DebugMessage:
currentEvent.event.setTypeIndex(resolveType(currentEvent));
pendingDebugMessages.enqueue(currentEvent.event);
break;
default: {
int typeIndex = resolveType(currentEvent);
currentEvent.event.setTypeIndex(typeIndex);
if (rangesInProgress.isEmpty())
forwardEvents(currentEvent.event);
else
pendingMessages.enqueue(currentEvent.event);
break;
}
}
}
void QQmlProfilerClientPrivate::sendRecordingStatus(int engineId)
{
Q_Q(QQmlProfilerClient);
QPacket stream(connection->currentDataStreamVersion());
stream << recording << engineId; // engineId -1 is OK. It means "all of them"
if (recording) {
stream << requestedFeatures << flushInterval;
stream << true; // yes, we support type IDs
}
q->sendMessage(stream.data());
}
QQmlProfilerClient::QQmlProfilerClient(QQmlDebugConnection *connection,
QQmlProfilerEventReceiver *eventReceiver,
quint64 features)
: QQmlDebugClient(*(new QQmlProfilerClientPrivate(connection, eventReceiver)))
{
Q_D(QQmlProfilerClient);
setRequestedFeatures(features);
connect(this, &QQmlDebugClient::stateChanged, this, &QQmlProfilerClient::onStateChanged);
connect(d->engineControl.data(), &QQmlEngineControlClient::engineAboutToBeAdded,
this, &QQmlProfilerClient::sendRecordingStatus);
connect(d->engineControl.data(), &QQmlEngineControlClient::engineAboutToBeRemoved,
this, [d](int engineId) {
// We may already be done with that engine. Then we don't need to block it.
if (d->trackedEngines.contains(engineId))
d->engineControl->blockEngine(engineId);
});
connect(this, &QQmlProfilerClient::traceFinished,
d->engineControl.data(), [d](qint64 timestamp, const QList<int> &engineIds) {
Q_UNUSED(timestamp);
// The engines might not be blocked because the trace can get finished before engine control
// sees them.
for (int blocked : d->engineControl->blockedEngines()) {
if (engineIds.contains(blocked))
d->engineControl->releaseEngine(blocked);
}
});
}
QQmlProfilerClient::~QQmlProfilerClient()
{
//Disable profiling if started by client
//Profiling data will be lost!!
if (isRecording())
setRecording(false);
}
void QQmlProfilerClient::clearEvents()
{
Q_D(QQmlProfilerClient);
d->rangesInProgress.clear();
d->pendingMessages.clear();
d->pendingDebugMessages.clear();
if (d->recordedFeatures != 0) {
d->recordedFeatures = 0;
emit recordedFeaturesChanged(0);
}
emit cleared();
}
void QQmlProfilerClient::clearAll()
{
Q_D(QQmlProfilerClient);
d->serverTypeIds.clear();
d->eventTypeIds.clear();
d->trackedEngines.clear();
clearEvents();
}
void QQmlProfilerClientPrivate::finalize()
{
while (!rangesInProgress.isEmpty()) {
currentEvent = rangesInProgress.top();
currentEvent.event.setRangeStage(RangeEnd);
currentEvent.event.setTimestamp(maximumTime);
processCurrentEvent();
}
forwardDebugMessages(std::numeric_limits<qint64>::max());
}
void QQmlProfilerClient::sendRecordingStatus(int engineId)
{
Q_D(QQmlProfilerClient);
d->sendRecordingStatus(engineId);
}
bool QQmlProfilerClient::isRecording() const
{
Q_D(const QQmlProfilerClient);
return d->recording;
}
void QQmlProfilerClient::setRecording(bool v)
{
Q_D(QQmlProfilerClient);
if (v == d->recording)
return;
d->recording = v;
if (state() == Enabled)
sendRecordingStatus();
emit recordingChanged(v);
}
quint64 QQmlProfilerClient::recordedFeatures() const
{
Q_D(const QQmlProfilerClient);
return d->recordedFeatures;
}
void QQmlProfilerClient::setRequestedFeatures(quint64 features)
{
Q_D(QQmlProfilerClient);
d->requestedFeatures = features;
if (features & static_cast<quint64>(1) << ProfileDebugMessages) {
if (d->messageClient.isNull()) {
d->messageClient.reset(new QQmlDebugMessageClient(connection()));
connect(d->messageClient.data(), &QQmlDebugMessageClient::message, this,
[this](QtMsgType type, const QString &text, const QQmlDebugContextInfo &context)
{
Q_D(QQmlProfilerClient);
d->updateFeatures(ProfileDebugMessages);
d->currentEvent.event.setTimestamp(context.timestamp > 0 ? context.timestamp : 0);
d->currentEvent.event.setTypeIndex(-1);
d->currentEvent.event.setString(text);
d->currentEvent.type = QQmlProfilerEventType(
DebugMessage, MaximumRangeType, type,
QQmlProfilerEventLocation(context.file, context.line, 1));
d->currentEvent.serverTypeId = 0;
d->processCurrentEvent();
});
}
} else {
d->messageClient.reset();
}
}
void QQmlProfilerClient::setFlushInterval(quint32 flushInterval)
{
Q_D(QQmlProfilerClient);
d->flushInterval = flushInterval;
}
QQmlProfilerClient::QQmlProfilerClient(QQmlProfilerClientPrivate &dd) :
QQmlDebugClient(dd)
{
Q_D(QQmlProfilerClient);
connect(d->engineControl.data(), &QQmlEngineControlClient::engineAboutToBeAdded,
this, &QQmlProfilerClient::sendRecordingStatus);
}
bool QQmlProfilerClientPrivate::updateFeatures(ProfileFeature feature)
{
Q_Q(QQmlProfilerClient);
quint64 flag = 1ULL << feature;
if (!(requestedFeatures & flag))
return false;
if (!(recordedFeatures & flag)) {
recordedFeatures |= flag;
emit q->recordedFeaturesChanged(recordedFeatures);
}
return true;
}
void QQmlProfilerClient::onStateChanged(State status)
{
if (status == Enabled) {
sendRecordingStatus(-1);
} else {
Q_D(QQmlProfilerClient);
d->finalize();
}
}
void QQmlProfilerClient::messageReceived(const QByteArray &data)
{
Q_D(QQmlProfilerClient);
QPacket stream(d->connection->currentDataStreamVersion(), data);
stream >> d->currentEvent;
d->maximumTime = qMax(d->currentEvent.event.timestamp(), d->maximumTime);
if (d->currentEvent.type.message() == Complete) {
d->finalize();
emit complete(d->maximumTime);
} else if (d->currentEvent.type.message() == Event
&& d->currentEvent.type.detailType() == StartTrace) {
const QList<int> engineIds = d->currentEvent.event.numbers<QList<int>, qint32>();
d->trackedEngines.append(engineIds);
d->forwardDebugMessages(d->currentEvent.event.timestamp());
emit traceStarted(d->currentEvent.event.timestamp(), engineIds);
} else if (d->currentEvent.type.message() == Event
&& d->currentEvent.type.detailType() == EndTrace) {
const QList<int> engineIds = d->currentEvent.event.numbers<QList<int>, qint32>();
for (int engineId : engineIds)
d->trackedEngines.removeAll(engineId);
d->forwardDebugMessages(d->currentEvent.event.timestamp());
emit traceFinished(d->currentEvent.event.timestamp(), engineIds);
} else if (d->updateFeatures(d->currentEvent.type.feature())) {
d->processCurrentEvent();
}
}
QT_END_NAMESPACE
#include "moc_qqmlprofilerclient_p.cpp"
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