1 /****************************************************************************
2 **
3 ** Copyright (C) 2016 The Qt Company Ltd.
4 ** Contact: https://www.qt.io/licensing/
5 **
6 ** This file is part of the QtQml module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and The Qt Company. For licensing terms
14 ** and conditions see https://www.qt.io/terms-conditions. For further
15 ** information use the contact form at https://www.qt.io/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 3 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 3 requirements
23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24 **
25 ** GNU General Public License Usage
26 ** Alternatively, this file may be used under the terms of the GNU
27 ** General Public License version 2.0 or (at your option) the GNU General
28 ** Public license version 3 or any later version approved by the KDE Free
29 ** Qt Foundation. The licenses are as published by the Free Software
30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31 ** included in the packaging of this file. Please review the following
32 ** information to ensure the GNU General Public License requirements will
33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34 ** https://www.gnu.org/licenses/gpl-3.0.html.
35 **
36 ** $QT_END_LICENSE$
37 **
38 ****************************************************************************/
39 
40 #ifndef QQMLPROFILERSERVICE_P_H
41 #define QQMLPROFILERSERVICE_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists purely as an
48 // implementation detail.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <private/qqmlconfigurabledebugservice_p.h>
55 #include <private/qqmldebugserviceinterfaces_p.h>
56 #include <private/qqmlprofilerdefinitions_p.h>
57 #include <private/qqmlabstractprofileradapter_p.h>
58 #include <private/qqmlboundsignal_p.h>
59 #include <private/qqmldebugconnector_p.h>
60 #include <private/qversionedpacket_p.h>
61 
62 #include <QtCore/qelapsedtimer.h>
63 #include <QtCore/qmetaobject.h>
64 #include <QtCore/qmutex.h>
65 #include <QtCore/qvector.h>
66 #include <QtCore/qstringbuilder.h>
67 #include <QtCore/qwaitcondition.h>
68 #include <QtCore/qtimer.h>
69 
70 #include <limits>
71 
72 QT_BEGIN_NAMESPACE
73 
74 class QUrl;
75 using QQmlDebugPacket = QVersionedPacket<QQmlDebugConnector>;
76 
77 class QQmlProfilerServiceImpl :
78         public QQmlConfigurableDebugService<QQmlProfilerService>,
79         public QQmlProfilerDefinitions
80 {
81     Q_OBJECT
82 public:
83 
84     void engineAboutToBeAdded(QJSEngine *engine) override;
85     void engineAboutToBeRemoved(QJSEngine *engine) override;
86     void engineAdded(QJSEngine *engine) override;
87     void engineRemoved(QJSEngine *engine) override;
88 
89     void addGlobalProfiler(QQmlAbstractProfilerAdapter *profiler) override;
90     void removeGlobalProfiler(QQmlAbstractProfilerAdapter *profiler) override;
91 
92     void startProfiling(QJSEngine *engine,
93                         quint64 features = std::numeric_limits<quint64>::max()) override;
94     void stopProfiling(QJSEngine *engine) override;
95 
96     QQmlProfilerServiceImpl(QObject *parent = 0);
97     ~QQmlProfilerServiceImpl() override;
98 
99     void dataReady(QQmlAbstractProfilerAdapter *profiler) override;
100 
101 signals:
102     void startFlushTimer();
103     void stopFlushTimer();
104 
105 protected:
106     void stateAboutToBeChanged(State state) override;
107     void messageReceived(const QByteArray &) override;
108 
109 private:
110     friend class QQmlProfilerServiceFactory;
111 
112     void sendMessages();
113     void addEngineProfiler(QQmlAbstractProfilerAdapter *profiler, QJSEngine *engine);
114     void removeProfilerFromStartTimes(const QQmlAbstractProfilerAdapter *profiler);
115     void flush();
116 
117     QElapsedTimer m_timer;
118     QTimer m_flushTimer;
119     bool m_waitingForStop;
120 
121     bool m_globalEnabled;
122     quint64 m_globalFeatures;
123 
124     QList<QQmlAbstractProfilerAdapter *> m_globalProfilers;
125     QMultiHash<QJSEngine *, QQmlAbstractProfilerAdapter *> m_engineProfilers;
126     QList<QJSEngine *> m_stoppingEngines;
127     QMultiMap<qint64, QQmlAbstractProfilerAdapter *> m_startTimes;
128 };
129 
130 QT_END_NAMESPACE
131 
132 #endif // QQMLPROFILERSERVICE_P_H
133 
134