diff options
Diffstat (limited to 'src/plugins/qmltooling/qmldbg_profiler/qqmlprofileradapter.cpp')
| -rw-r--r-- | src/plugins/qmltooling/qmldbg_profiler/qqmlprofileradapter.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/plugins/qmltooling/qmldbg_profiler/qqmlprofileradapter.cpp b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofileradapter.cpp new file mode 100644 index 0000000000..245900abae --- /dev/null +++ b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofileradapter.cpp @@ -0,0 +1,123 @@ +/**************************************************************************** +** +** 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 <private/qqmldebugserviceinterfaces_p.h> + +QT_BEGIN_NAMESPACE + +QQmlProfilerAdapter::QQmlProfilerAdapter(QQmlProfilerService *service, QQmlEnginePrivate *engine) : + QQmlAbstractProfilerAdapter(service), next(0) +{ + 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 + QQmlDebugStream ds(&data, QIODevice::WriteOnly); + ds << d->time << decodedMessageType << decodedDetailType; + + switch (decodedMessageType) { + case QQmlProfilerDefinitions::RangeStart: + if (decodedDetailType == (int)QQmlProfilerDefinitions::Binding) + ds << QQmlProfilerDefinitions::QmlBinding; + 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; + case QQmlProfilerDefinitions::RangeEnd: break; + default: + Q_ASSERT_X(false, Q_FUNC_INFO, "Invalid message type."); + break; + } + messages << data; + data.clear(); + } + } +} + +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 |