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39 | |
40 | #include "qv4profileradapter.h" |
41 | #include "qqmlprofilerservice.h" |
42 | |
43 | QT_BEGIN_NAMESPACE |
44 | |
45 | QV4ProfilerAdapter::QV4ProfilerAdapter(QQmlProfilerService *service, QV4::ExecutionEngine *engine) : |
46 | m_functionCallPos(0), m_memoryPos(0) |
47 | { |
48 | setService(service); |
49 | engine->setProfiler(new QV4::Profiling::Profiler(engine)); |
50 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::profilingEnabled, |
51 | receiver: this, slot: &QV4ProfilerAdapter::forwardEnabled); |
52 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::profilingEnabledWhileWaiting, |
53 | receiver: this, slot: &QV4ProfilerAdapter::forwardEnabledWhileWaiting, type: Qt::DirectConnection); |
54 | connect(sender: this, signal: &QV4ProfilerAdapter::v4ProfilingEnabled, |
55 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::startProfiling); |
56 | connect(sender: this, signal: &QV4ProfilerAdapter::v4ProfilingEnabledWhileWaiting, |
57 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::startProfiling, type: Qt::DirectConnection); |
58 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::profilingDisabled, |
59 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::stopProfiling); |
60 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::profilingDisabledWhileWaiting, |
61 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::stopProfiling, |
62 | type: Qt::DirectConnection); |
63 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::dataRequested, |
64 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::reportData); |
65 | connect(sender: this, signal: &QQmlAbstractProfilerAdapter::referenceTimeKnown, |
66 | receiver: engine->profiler(), slot: &QV4::Profiling::Profiler::setTimer); |
67 | connect(sender: engine->profiler(), signal: &QV4::Profiling::Profiler::dataReady, |
68 | receiver: this, slot: &QV4ProfilerAdapter::receiveData); |
69 | } |
70 | |
71 | qint64 QV4ProfilerAdapter::appendMemoryEvents(qint64 until, QList<QByteArray> &messages, |
72 | QQmlDebugPacket &d) |
73 | { |
74 | // Make it const, so that we cannot accidentally detach it. |
75 | const QVector<QV4::Profiling::MemoryAllocationProperties> &memoryData = m_memoryData; |
76 | |
77 | while (memoryData.length() > m_memoryPos && memoryData[m_memoryPos].timestamp <= until) { |
78 | const QV4::Profiling::MemoryAllocationProperties &props = memoryData[m_memoryPos]; |
79 | d << props.timestamp << int(MemoryAllocation) << int(props.type) << props.size; |
80 | ++m_memoryPos; |
81 | messages.append(t: d.squeezedData()); |
82 | d.clear(); |
83 | } |
84 | return memoryData.length() == m_memoryPos ? -1 : memoryData[m_memoryPos].timestamp; |
85 | } |
86 | |
87 | qint64 QV4ProfilerAdapter::finalizeMessages(qint64 until, QList<QByteArray> &messages, |
88 | qint64 callNext, QQmlDebugPacket &d) |
89 | { |
90 | qint64 memoryNext = -1; |
91 | |
92 | if (callNext == -1) { |
93 | m_functionLocations.clear(); |
94 | m_functionCallData.clear(); |
95 | m_functionCallPos = 0; |
96 | memoryNext = appendMemoryEvents(until, messages, d); |
97 | } else { |
98 | memoryNext = appendMemoryEvents(until: qMin(a: callNext, b: until), messages, d); |
99 | } |
100 | |
101 | if (memoryNext == -1) { |
102 | m_memoryData.clear(); |
103 | m_memoryPos = 0; |
104 | return callNext; |
105 | } |
106 | |
107 | return callNext == -1 ? memoryNext : qMin(a: callNext, b: memoryNext); |
108 | } |
109 | |
110 | qint64 QV4ProfilerAdapter::sendMessages(qint64 until, QList<QByteArray> &messages) |
111 | { |
112 | QQmlDebugPacket d; |
113 | |
114 | // Make it const, so that we cannot accidentally detach it. |
115 | const QVector<QV4::Profiling::FunctionCallProperties> &functionCallData = m_functionCallData; |
116 | |
117 | while (true) { |
118 | while (!m_stack.isEmpty() && |
119 | (m_functionCallPos == functionCallData.length() || |
120 | m_stack.top() <= functionCallData[m_functionCallPos].start)) { |
121 | if (m_stack.top() > until || messages.length() > s_numMessagesPerBatch) |
122 | return finalizeMessages(until, messages, callNext: m_stack.top(), d); |
123 | |
124 | appendMemoryEvents(until: m_stack.top(), messages, d); |
125 | d << m_stack.pop() << int(RangeEnd) << int(Javascript); |
126 | messages.append(t: d.squeezedData()); |
127 | d.clear(); |
128 | } |
129 | while (m_functionCallPos != functionCallData.length() && |
130 | (m_stack.empty() || functionCallData[m_functionCallPos].start < m_stack.top())) { |
131 | const QV4::Profiling::FunctionCallProperties &props = |
132 | functionCallData[m_functionCallPos]; |
133 | if (props.start > until || messages.length() > s_numMessagesPerBatch) |
134 | return finalizeMessages(until, messages, callNext: props.start, d); |
135 | |
136 | appendMemoryEvents(until: props.start, messages, d); |
137 | auto location = m_functionLocations.find(key: props.id); |
138 | |
139 | d << props.start << int(RangeStart) << int(Javascript) << static_cast<qint64>(props.id); |
140 | if (location != m_functionLocations.end()) { |
141 | messages.push_back(t: d.squeezedData()); |
142 | d.clear(); |
143 | d << props.start << int(RangeLocation) << int(Javascript) << location->file << location->line |
144 | << location->column << static_cast<qint64>(props.id); |
145 | messages.push_back(t: d.squeezedData()); |
146 | d.clear(); |
147 | d << props.start << int(RangeData) << int(Javascript) << location->name |
148 | << static_cast<qint64>(props.id); |
149 | m_functionLocations.erase(it: location); |
150 | } |
151 | messages.push_back(t: d.squeezedData()); |
152 | d.clear(); |
153 | m_stack.push(t: props.end); |
154 | ++m_functionCallPos; |
155 | } |
156 | if (m_stack.empty() && m_functionCallPos == functionCallData.length()) |
157 | return finalizeMessages(until, messages, callNext: -1, d); |
158 | } |
159 | } |
160 | |
161 | void QV4ProfilerAdapter::receiveData( |
162 | const QV4::Profiling::FunctionLocationHash &locations, |
163 | const QVector<QV4::Profiling::FunctionCallProperties> &functionCallData, |
164 | const QVector<QV4::Profiling::MemoryAllocationProperties> &memoryData) |
165 | { |
166 | // In rare cases it could be that another flush or stop event is processed while data from |
167 | // the previous one is still pending. In that case we just append the data. |
168 | if (m_functionLocations.isEmpty()) |
169 | m_functionLocations = locations; |
170 | else |
171 | m_functionLocations.insert(hash: locations); |
172 | |
173 | if (m_functionCallData.isEmpty()) |
174 | m_functionCallData = functionCallData; |
175 | else |
176 | m_functionCallData.append(l: functionCallData); |
177 | |
178 | if (m_memoryData.isEmpty()) |
179 | m_memoryData = memoryData; |
180 | else |
181 | m_memoryData.append(l: memoryData); |
182 | |
183 | service->dataReady(profiler: this); |
184 | } |
185 | |
186 | quint64 QV4ProfilerAdapter::translateFeatures(quint64 qmlFeatures) |
187 | { |
188 | quint64 v4Features = 0; |
189 | const quint64 one = 1; |
190 | if (qmlFeatures & (one << ProfileJavaScript)) |
191 | v4Features |= (one << QV4::Profiling::FeatureFunctionCall); |
192 | if (qmlFeatures & (one << ProfileMemory)) |
193 | v4Features |= (one << QV4::Profiling::FeatureMemoryAllocation); |
194 | return v4Features; |
195 | } |
196 | |
197 | void QV4ProfilerAdapter::forwardEnabled(quint64 features) |
198 | { |
199 | emit v4ProfilingEnabled(v4Features: translateFeatures(qmlFeatures: features)); |
200 | } |
201 | |
202 | void QV4ProfilerAdapter::forwardEnabledWhileWaiting(quint64 features) |
203 | { |
204 | emit v4ProfilingEnabledWhileWaiting(v4Features: translateFeatures(qmlFeatures: features)); |
205 | } |
206 | |
207 | QT_END_NAMESPACE |
208 | |
209 | #include "moc_qv4profileradapter.cpp" |
210 | |