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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmlprofileradapter.h"
#include "qqmldebugpacket.h"
#include <private/qqmldebugserviceinterfaces_p.h>
QT_BEGIN_NAMESPACE
QQmlProfilerAdapter::QQmlProfilerAdapter(QQmlProfilerService *service, QQmlEnginePrivate *engine) :
next(0)
{
setService(service);
engine->enableProfiler();
connect(this, SIGNAL(profilingEnabled(quint64)), engine->profiler, SLOT(startProfiling(quint64)));
connect(this, SIGNAL(profilingEnabledWhileWaiting(quint64)),
engine->profiler, SLOT(startProfiling(quint64)), Qt::DirectConnection);
connect(this, SIGNAL(profilingDisabled()), engine->profiler, SLOT(stopProfiling()));
connect(this, SIGNAL(profilingDisabledWhileWaiting()),
engine->profiler, SLOT(stopProfiling()), Qt::DirectConnection);
connect(this, SIGNAL(dataRequested()), engine->profiler, SLOT(reportData()));
connect(this, SIGNAL(referenceTimeKnown(QElapsedTimer)),
engine->profiler, SLOT(setTimer(QElapsedTimer)));
connect(engine->profiler, SIGNAL(dataReady(QVector<QQmlProfilerData>)),
this, SLOT(receiveData(QVector<QQmlProfilerData>)));
}
// convert to QByteArrays that can be sent to the debug client
// use of QDataStream can skew results
// (see tst_qqmldebugtrace::trace() benchmark)
static void qQmlProfilerDataToByteArrays(const QQmlProfilerData *d, QList<QByteArray> &messages)
{
QByteArray data;
Q_ASSERT_X(((d->messageType | d->detailType) & (1 << 31)) == 0, Q_FUNC_INFO,
"You can use at most 31 message types and 31 detail types.");
for (uint decodedMessageType = 0; (d->messageType >> decodedMessageType) != 0;
++decodedMessageType) {
if ((d->messageType & (1 << decodedMessageType)) == 0)
continue;
for (uint decodedDetailType = 0; (d->detailType >> decodedDetailType) != 0;
++decodedDetailType) {
if ((d->detailType & (1 << decodedDetailType)) == 0)
continue;
//### using QDataStream is relatively expensive
QQmlDebugPacket ds;
ds << d->time << decodedMessageType << decodedDetailType;
switch (decodedMessageType) {
case QQmlProfilerDefinitions::RangeStart:
case QQmlProfilerDefinitions::RangeEnd:
break;
case QQmlProfilerDefinitions::RangeData:
ds << (d->detailString.isEmpty() ? d->detailUrl.toString() : d->detailString);
break;
case QQmlProfilerDefinitions::RangeLocation:
ds << (d->detailUrl.isEmpty() ? d->detailString : d->detailUrl.toString()) << d->x
<< d->y;
break;
default:
Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid message type.");
break;
}
messages << ds.data();
}
}
}
qint64 QQmlProfilerAdapter::sendMessages(qint64 until, QList<QByteArray> &messages)
{
while (next != data.length()) {
if (data[next].time > until)
return data[next].time;
qQmlProfilerDataToByteArrays(&(data[next++]), messages);
}
next = 0;
data.clear();
return -1;
}
void QQmlProfilerAdapter::receiveData(const QVector<QQmlProfilerData> &new_data)
{
if (data.isEmpty())
data = new_data;
else
data.append(new_data);
service->dataReady(this);
}
QT_END_NAMESPACE
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