qquickprofiler.cpp

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#include "qquickprofiler_p.h"

#include <QtQml/private/qqmlabstractprofileradapter_p.h>

#include <QtCore/qcoreapplication.h>

#include <QtCore/qthread.h>

QT_BEGIN_NAMESPACE

// instance will be set, unset in constructor. Allows static methods to be inlined.

QQuickProfiler *QQuickProfiler::s_instance = nullptr;

quint64 QQuickProfiler::featuresEnabled = 0;

void QQuickProfiler::initialize(QObject *parent)

    Q_ASSERT(s_instance == nullptr);

    s_instance = new QQuickProfiler(parent);

void animationTimerCallback(qint64 delta)

    Q_QUICK_PROFILE(QQuickProfiler::ProfileAnimations, animationFrame(delta,

            QThread::currentThread() == QCoreApplication::instance()->thread() ?

            QQuickProfiler::GuiThread : QQuickProfiler::RenderThread));

void QQuickProfiler::registerAnimationCallback()

    QUnifiedTimer::instance()->registerProfilerCallback(&animationTimerCallback);

class CallbackRegistrationHelper : public QObject {

    Q_OBJECT

public:

    void registerAnimationTimerCallback()

        QQuickProfiler::registerAnimationCallback();

        delete this;

};

QQuickProfiler::QQuickProfiler(QObject *parent) : QObject(parent)

    // This is safe because at this point the m_instance isn't initialized, yet.

    m_timer.start();

    CallbackRegistrationHelper *helper = new CallbackRegistrationHelper; // will delete itself

    helper->moveToThread(QCoreApplication::instance()->thread());

    // Queue the signal to have the animation timer registration run in the right thread;

    QObject signalSource;

    connect(&signalSource, &QObject::destroyed,

            helper, &CallbackRegistrationHelper::registerAnimationTimerCallback,

            Qt::QueuedConnection);

QQuickProfiler::~QQuickProfiler()

    QMutexLocker lock(&m_dataMutex);

    featuresEnabled = 0;

    s_instance = nullptr;

void QQuickProfiler::startProfilingImpl(quint64 features)

    QMutexLocker lock(&m_dataMutex);

    featuresEnabled = features;

void QQuickProfiler::stopProfilingImpl()

    QMutexLocker lock(&m_dataMutex);

    featuresEnabled = 0;

    emit dataReady(m_data);

    m_data.clear();

void QQuickProfiler::reportDataImpl()

    QMutexLocker lock(&m_dataMutex);

    emit dataReady(m_data);

    m_data.clear();

void QQuickProfiler::setTimer(const QElapsedTimer &t)

    QMutexLocker lock(&m_dataMutex);

    m_timer = t;

QT_END_NAMESPACE

#include "qquickprofiler.moc"

#include "moc_qquickprofiler_p.cpp"