369 lines
12 KiB
C
369 lines
12 KiB
C
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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtQml module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QQMLPROFILER_P_H
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#define QQMLPROFILER_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <private/qv4function_p.h>
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#include <private/qqmlboundsignal_p.h>
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#include "qqmlprofilerdefinitions_p.h"
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#include "qqmlabstractprofileradapter_p.h"
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#include <QUrl>
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#include <QString>
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QT_BEGIN_NAMESPACE
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#define Q_QML_PROFILE_IF_ENABLED(profiler, Code)\
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if (profiler && profiler->enabled) {\
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Code;\
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} else\
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(void)0
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#define Q_QML_PROFILE(profiler, Method)\
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Q_QML_PROFILE_IF_ENABLED(profiler, profiler->Method)
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// This struct is somewhat dangerous to use:
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// The messageType is a bit field. You can pack multiple messages into
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// one object, e.g. RangeStart and RangeLocation. Each one will be read
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// independently by toByteArrays. Thus you can only pack messages if their data
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// doesn't overlap. It's up to you to figure that out.
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struct Q_AUTOTEST_EXPORT QQmlProfilerData
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{
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QQmlProfilerData() {}
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QQmlProfilerData(qint64 time, int messageType, int detailType, const QUrl &url,
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int x = 0, int y = 0) :
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time(time), messageType(messageType), detailType(detailType), detailUrl(url),
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x(x), y(y) {}
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QQmlProfilerData(qint64 time, int messageType, int detailType, const QString &str,
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int x = 0, int y = 0) :
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time(time), messageType(messageType), detailType(detailType),detailString(str),
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x(x), y(y) {}
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QQmlProfilerData(qint64 time, int messageType, int detailType, const QString &str,
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const QUrl &url, int x = 0, int y = 0) :
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time(time), messageType(messageType), detailType(detailType), detailString(str),
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detailUrl(url), x(x), y(y) {}
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QQmlProfilerData(qint64 time, int messageType, int detailType) :
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time(time), messageType(messageType), detailType(detailType) {}
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qint64 time;
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int messageType; //bit field of QQmlProfilerService::Message
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int detailType;
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QString detailString; //used by RangeData and possibly by RangeLocation
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QUrl detailUrl; //used by RangeLocation, overrides detailString
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int x; //used by RangeLocation
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int y; //used by RangeLocation
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void toByteArrays(QList<QByteArray> &messages) const;
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};
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Q_DECLARE_TYPEINFO(QQmlProfilerData, Q_MOVABLE_TYPE);
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class QQmlProfiler : public QObject, public QQmlProfilerDefinitions {
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Q_OBJECT
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public:
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void startBinding(const QString &fileName, int line, int column)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(),
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(1 << RangeStart | 1 << RangeLocation), 1 << Binding,
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fileName, line, column));
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}
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// Have toByteArrays() construct another RangeData event from the same QString later.
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// This is somewhat pointless but important for backwards compatibility.
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void startCompiling(const QString &name)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(),
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(1 << RangeStart | 1 << RangeLocation | 1 << RangeData),
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1 << Compiling, name, 1, 1));
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}
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void startHandlingSignal(const QString &fileName, int line, int column)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(),
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(1 << RangeStart | 1 << RangeLocation), 1 << HandlingSignal,
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fileName, line, column));
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}
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void startCreating(const QString &typeName, const QUrl &fileName, int line, int column)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(),
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(1 << RangeStart | 1 << RangeLocation | 1 << RangeData),
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1 << Creating, typeName, fileName, line, column));
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}
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void startCreating(const QString &typeName)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(), (1 << RangeStart | 1 << RangeData),
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1 << Creating, typeName));
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}
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void creatingLocation(const QUrl &fileName, int line, int column)
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(), 1 << RangeLocation, 1 << Creating,
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fileName, line, column));
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}
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template<RangeType Range>
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void endRange()
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{
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m_data.append(QQmlProfilerData(m_timer.nsecsElapsed(), 1 << RangeEnd, 1 << Range));
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}
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QQmlProfiler();
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bool enabled;
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public slots:
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void startProfiling();
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void stopProfiling();
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void reportData();
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void setTimer(const QElapsedTimer &timer) { m_timer = timer; }
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signals:
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void dataReady(const QList<QQmlProfilerData> &);
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protected:
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QElapsedTimer m_timer;
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QVarLengthArray<QQmlProfilerData> m_data;
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};
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class QQmlProfilerAdapter : public QQmlAbstractProfilerAdapter {
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Q_OBJECT
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public:
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QQmlProfilerAdapter(QQmlProfilerService *service, QQmlEnginePrivate *engine);
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qint64 sendMessages(qint64 until, QList<QByteArray> &messages);
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public slots:
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void receiveData(const QList<QQmlProfilerData> &new_data);
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private:
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QList<QQmlProfilerData> data;
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};
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//
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// RAII helper structs
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//
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struct QQmlProfilerHelper : public QQmlProfilerDefinitions {
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QQmlProfiler *profiler;
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QQmlProfilerHelper(QQmlProfiler *profiler) : profiler(profiler) {}
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};
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struct QQmlBindingProfiler : public QQmlProfilerHelper {
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QQmlBindingProfiler(QQmlProfiler *profiler, const QString &url, int line, int column) :
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QQmlProfilerHelper(profiler)
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{
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Q_QML_PROFILE(profiler, startBinding(url, line, column));
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}
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~QQmlBindingProfiler()
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{
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Q_QML_PROFILE(profiler, endRange<Binding>());
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}
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};
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struct QQmlHandlingSignalProfiler : public QQmlProfilerHelper {
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QQmlHandlingSignalProfiler(QQmlProfiler *profiler, QQmlBoundSignalExpression *expression) :
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QQmlProfilerHelper(profiler)
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{
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Q_QML_PROFILE_IF_ENABLED(profiler, {
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QV4::Function *function;
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if (expression->sourceFile().isEmpty() && (function = expression->function())) {
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profiler->startHandlingSignal(
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function->sourceFile(), function->compiledFunction->location.line,
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function->compiledFunction->location.column);
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} else {
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profiler->startHandlingSignal(
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expression->sourceFile(), expression->lineNumber(),
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expression->columnNumber());
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}
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});
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}
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~QQmlHandlingSignalProfiler()
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{
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Q_QML_PROFILE(profiler, endRange<QQmlProfiler::HandlingSignal>());
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}
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};
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struct QQmlCompilingProfiler : public QQmlProfilerHelper {
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QQmlCompilingProfiler(QQmlProfiler *profiler, const QString &name) :
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QQmlProfilerHelper(profiler)
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{
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Q_QML_PROFILE(profiler, startCompiling(name));
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}
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~QQmlCompilingProfiler()
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{
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Q_QML_PROFILE(profiler, endRange<Compiling>());
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}
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};
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#define Q_QML_VME_PROFILE(profiler, Method) Q_QML_PROFILE_IF_ENABLED(profiler.profiler, profiler.Method)
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struct QQmlVmeProfiler : public QQmlProfilerDefinitions {
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public:
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struct Data {
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Data() : line(0), column(0) {}
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QUrl url;
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int line;
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int column;
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QString typeName;
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};
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QQmlVmeProfiler() : profiler(0), running(false) {}
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void clear(bool stopProfiling = false)
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{
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ranges.clear();
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if (running)
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profiler->endRange<Creating>();
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for (int i = 0; i < backgroundRanges.count(); ++i) {
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profiler->endRange<Creating>();
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}
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backgroundRanges.clear();
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running = false;
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if (stopProfiling) profiler = 0;
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}
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void startBackground(const QString &typeName)
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{
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if (running) {
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profiler->endRange<Creating>();
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running = false;
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}
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profiler->startCreating(typeName);
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backgroundRanges.push(typeName);
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}
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void start(const QString &typeName, const QUrl &url, int line, int column)
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{
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switchRange();
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setCurrentRange(typeName, url, line, column);
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profiler->startCreating(typeName, url, line, column);
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}
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void stop()
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{
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if (running) {
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profiler->endRange<Creating>();
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running = false;
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}
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}
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void pop()
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{
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if (ranges.count() > 0) {
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switchRange();
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currentRange = ranges.pop();
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profiler->startCreating(currentRange.typeName, currentRange.url,
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currentRange.line, currentRange.column);
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}
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}
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void push()
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{
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if (running)
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ranges.push(currentRange);
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}
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void foreground(const QUrl &url, int line, int column)
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{
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if (backgroundRanges.count() > 0) {
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switchRange();
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setCurrentRange(backgroundRanges.pop(), url, line, column);
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profiler->creatingLocation(url, line, column);
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}
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}
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QQmlProfiler *profiler;
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private:
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void switchRange()
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{
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if (running)
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profiler->endRange<Creating>();
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else
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running = true;
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}
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void setCurrentRange(const QString &typeName, const QUrl &url, int line, int column)
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{
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currentRange.typeName = typeName;
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currentRange.url = url;
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currentRange.line = line;
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currentRange.column = column;
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}
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Data currentRange;
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QStack<Data> ranges;
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QStack<QString> backgroundRanges;
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bool running;
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};
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QT_END_NAMESPACE
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Q_DECLARE_METATYPE(QList<QQmlProfilerData>)
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#endif // QQMLPROFILER_P_H
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