1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "qmlprofilerbindingloopsrenderpass.h"
#include "qmlprofilermodelmanager.h"
#include "qmlprofilerrangemodel.h"
#include "qmlprofilertr.h"
#include <tracing/timelinenotesrenderpass.h>
#include <tracing/timelineitemsrenderpass.h>
#include <tracing/timelineselectionrenderpass.h>
#include <tracing/timelineformattime.h>
#include <QCoreApplication>
#include <QVector>
#include <QHash>
#include <QUrl>
#include <QString>
#include <QStack>
namespace QmlProfiler {
namespace Internal {
QmlProfilerRangeModel::QmlProfilerRangeModel(QmlProfilerModelManager *manager, RangeType range,
Timeline::TimelineModelAggregator *parent) :
QmlProfilerTimelineModel(manager, UndefinedMessage, range, featureFromRangeType(range), parent)
{
m_expandedRowTypes << -1;
}
void QmlProfilerRangeModel::clear()
{
m_expandedRowTypes.clear();
m_expandedRowTypes << -1;
m_data.clear();
m_stack.clear();
QmlProfilerTimelineModel::clear();
}
bool QmlProfilerRangeModel::supportsBindingLoops() const
{
return rangeType() == Binding || rangeType() == HandlingSignal;
}
void QmlProfilerRangeModel::loadEvent(const QmlEvent &event, const QmlEventType &type)
{
Q_UNUSED(type)
// store starttime-based instance
if (event.rangeStage() == RangeStart) {
int index = insertStart(event.timestamp(), event.typeIndex());
m_stack.append(index);
m_data.insert(index, Item());
} else if (event.rangeStage() == RangeEnd) {
if (!m_stack.isEmpty()) {
int index = m_stack.pop();
insertEnd(index, event.timestamp() - startTime(index));
} else {
qWarning() << "Received inconsistent trace data from application.";
}
}
}
void QmlProfilerRangeModel::finalize()
{
if (!m_stack.isEmpty()) {
qWarning() << "End times for some events are missing.";
const qint64 endTime = modelManager()->traceEnd();
do {
int index = m_stack.pop();
insertEnd(index, endTime - startTime(index));
} while (!m_stack.isEmpty());
}
// compute range nesting
computeNesting();
// compute nestingLevel - nonexpanded
computeNestingContracted();
// compute nestingLevel - expanded
computeExpandedLevels();
if (supportsBindingLoops())
findBindingLoops();
QmlProfilerTimelineModel::finalize();
}
void QmlProfilerRangeModel::computeNestingContracted()
{
int i;
int eventCount = count();
int nestingLevels = Constants::QML_MIN_LEVEL;
int collapsedRowCount = nestingLevels + 1;
QVector<qint64> nestingEndTimes;
nestingEndTimes.fill(0, nestingLevels + 1);
for (i = 0; i < eventCount; i++) {
qint64 st = startTime(i);
// per type
if (nestingEndTimes[nestingLevels] > st) {
if (++nestingLevels == nestingEndTimes.size())
nestingEndTimes << 0;
if (nestingLevels == collapsedRowCount)
++collapsedRowCount;
} else {
while (nestingLevels > Constants::QML_MIN_LEVEL &&
nestingEndTimes[nestingLevels-1] <= st)
nestingLevels--;
}
nestingEndTimes[nestingLevels] = st + duration(i);
m_data[i].displayRowCollapsed = nestingLevels;
}
setCollapsedRowCount(collapsedRowCount);
}
void QmlProfilerRangeModel::computeExpandedLevels()
{
QHash<int, int> eventRow;
int eventCount = count();
for (int i = 0; i < eventCount; i++) {
int eventTypeId = typeId(i);
if (!eventRow.contains(eventTypeId)) {
eventRow[eventTypeId] = m_expandedRowTypes.size();
m_expandedRowTypes << eventTypeId;
}
m_data[i].displayRowExpanded = eventRow[eventTypeId];
}
setExpandedRowCount(m_expandedRowTypes.size());
}
void QmlProfilerRangeModel::findBindingLoops()
{
using CallStackEntry = QPair<int, int>;
QStack<CallStackEntry> callStack;
for (int i = 0; i < count(); ++i) {
int potentialParent = callStack.isEmpty() ? -1 : callStack.top().second;
while (potentialParent != -1 && !(endTime(potentialParent) > startTime(i))) {
callStack.pop();
potentialParent = callStack.isEmpty() ? -1 : callStack.top().second;
}
// check whether event is already in stack
for (int ii = 0; ii < callStack.size(); ++ii) {
if (callStack.at(ii).first == typeId(i)) {
m_data[i].bindingLoopHead = callStack.at(ii).second;
break;
}
}
CallStackEntry newEntry(typeId(i), i);
callStack.push(newEntry);
}
}
int QmlProfilerRangeModel::expandedRow(int index) const
{
return m_data[index].displayRowExpanded;
}
int QmlProfilerRangeModel::collapsedRow(int index) const
{
return m_data[index].displayRowCollapsed;
}
int QmlProfilerRangeModel::bindingLoopDest(int index) const
{
return m_data[index].bindingLoopHead;
}
QRgb QmlProfilerRangeModel::color(int index) const
{
return colorBySelectionId(index);
}
QVariantList QmlProfilerRangeModel::labels() const
{
QVariantList result;
const QmlProfilerModelManager *manager = modelManager();
for (int i = 1; i < expandedRowCount(); i++) { // Ignore the -1 for the first row
QVariantMap element;
const int typeId = m_expandedRowTypes[i];
const QmlEventType &type = manager->eventType(typeId);
element.insert(QLatin1String("displayName"), type.displayName());
element.insert(QLatin1String("description"), type.data());
element.insert(QLatin1String("id"), typeId);
result << element;
}
return result;
}
QVariantMap QmlProfilerRangeModel::details(int index) const
{
QVariantMap result;
int id = selectionId(index);
result.insert(QStringLiteral("displayName"),
Tr::tr(QmlProfilerModelManager::featureName(mainFeature())));
result.insert(Tr::tr("Duration"), Timeline::formatTime(duration(index)));
const QmlEventType &type = modelManager()->eventType(id);
result.insert(Tr::tr("Details"), type.data());
result.insert(Tr::tr("Location"), type.displayName());
return result;
}
QVariantMap QmlProfilerRangeModel::location(int index) const
{
return locationFromTypeId(index);
}
int QmlProfilerRangeModel::typeId(int index) const
{
return selectionId(index);
}
QList<const Timeline::TimelineRenderPass *> QmlProfilerRangeModel::supportedRenderPasses() const
{
if (supportsBindingLoops()) {
QList<const Timeline::TimelineRenderPass *> passes;
passes << Timeline::TimelineItemsRenderPass::instance()
<< QmlProfilerBindingLoopsRenderPass::instance()
<< Timeline::TimelineSelectionRenderPass::instance()
<< Timeline::TimelineNotesRenderPass::instance();
return passes;
} else {
return QmlProfilerTimelineModel::supportedRenderPasses();
}
}
} // namespace Internal
} // namespaec QmlProfiler
|
