1 | // Copyright (C) 2016 The Qt Company Ltd. |
---|---|
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
3 | |
4 | #include "qmlprofilerdata.h" |
5 | |
6 | #include <QtCore/qfile.h> |
7 | #include <QtCore/qqueue.h> |
8 | #include <QtCore/qregularexpression.h> |
9 | #include <QtCore/qurl.h> |
10 | #include <QtCore/qxmlstream.h> |
11 | #include <QtCore/qxpfunctional.h> |
12 | |
13 | #include <limits> |
14 | |
15 | const char PROFILER_FILE_VERSION[] = "1.02"; |
16 | |
17 | static const char *RANGE_TYPE_STRINGS[] = { |
18 | "Painting", |
19 | "Compiling", |
20 | "Creating", |
21 | "Binding", |
22 | "HandlingSignal", |
23 | "Javascript" |
24 | }; |
25 | |
26 | Q_STATIC_ASSERT(sizeof(RANGE_TYPE_STRINGS) == MaximumRangeType * sizeof(const char *)); |
27 | |
28 | static const char *MESSAGE_STRINGS[] = { |
29 | "Event", |
30 | "RangeStart", |
31 | "RangeData", |
32 | "RangeLocation", |
33 | "RangeEnd", |
34 | "Complete", |
35 | "PixmapCache", |
36 | "SceneGraph", |
37 | "MemoryAllocation", |
38 | "DebugMessage" |
39 | }; |
40 | |
41 | Q_STATIC_ASSERT(sizeof(MESSAGE_STRINGS) == MaximumMessage * sizeof(const char *)); |
42 | |
43 | ///////////////////////////////////////////////////////////////// |
44 | class QmlProfilerDataPrivate |
45 | { |
46 | public: |
47 | QmlProfilerDataPrivate(QmlProfilerData *qq){ Q_UNUSED(qq); } |
48 | |
49 | // data storage |
50 | QVector<QQmlProfilerEventType> eventTypes; |
51 | QVector<QQmlProfilerEvent> events; |
52 | |
53 | qint64 traceStartTime; |
54 | qint64 traceEndTime; |
55 | |
56 | // internal state while collecting events |
57 | qint64 qmlMeasuredTime; |
58 | QmlProfilerData::State state; |
59 | }; |
60 | |
61 | ///////////////////////////////////////////////////////////////// |
62 | QmlProfilerData::QmlProfilerData(QObject *parent) : |
63 | QQmlProfilerEventReceiver(parent), d(new QmlProfilerDataPrivate(this)) |
64 | { |
65 | d->state = Empty; |
66 | clear(); |
67 | } |
68 | |
69 | QmlProfilerData::~QmlProfilerData() |
70 | { |
71 | clear(); |
72 | delete d; |
73 | } |
74 | |
75 | void QmlProfilerData::clear() |
76 | { |
77 | d->events.clear(); |
78 | |
79 | d->traceEndTime = std::numeric_limits<qint64>::min(); |
80 | d->traceStartTime = std::numeric_limits<qint64>::max(); |
81 | d->qmlMeasuredTime = 0; |
82 | |
83 | setState(Empty); |
84 | } |
85 | |
86 | QString QmlProfilerData::qmlRangeTypeAsString(RangeType type) |
87 | { |
88 | if (type * sizeof(char *) < sizeof(RANGE_TYPE_STRINGS)) |
89 | return QLatin1String(RANGE_TYPE_STRINGS[type]); |
90 | else |
91 | return QString::number(type); |
92 | } |
93 | |
94 | QString QmlProfilerData::qmlMessageAsString(Message type) |
95 | { |
96 | if (type * sizeof(char *) < sizeof(MESSAGE_STRINGS)) |
97 | return QLatin1String(MESSAGE_STRINGS[type]); |
98 | else |
99 | return QString::number(type); |
100 | } |
101 | |
102 | void QmlProfilerData::setTraceStartTime(qint64 time) |
103 | { |
104 | if (time < d->traceStartTime) |
105 | d->traceStartTime = time; |
106 | } |
107 | |
108 | void QmlProfilerData::setTraceEndTime(qint64 time) |
109 | { |
110 | if (time > d->traceEndTime) |
111 | d->traceEndTime = time; |
112 | } |
113 | |
114 | qint64 QmlProfilerData::traceStartTime() const |
115 | { |
116 | return d->traceStartTime; |
117 | } |
118 | |
119 | qint64 QmlProfilerData::traceEndTime() const |
120 | { |
121 | return d->traceEndTime; |
122 | } |
123 | |
124 | void QmlProfilerData::addEvent(const QQmlProfilerEvent &event) |
125 | { |
126 | setState(AcquiringData); |
127 | d->events.append(t: event); |
128 | } |
129 | |
130 | void QmlProfilerData::addEventType(const QQmlProfilerEventType &type) |
131 | { |
132 | QQmlProfilerEventType newType = type; |
133 | |
134 | QString details; |
135 | // generate details string |
136 | if (!type.data().isEmpty()) { |
137 | details = type.data().simplified(); |
138 | QRegularExpression rewrite(QStringLiteral("^\\(function \\$(\\w+)\\(\\) \\{ (return |)(.+) \\}\\)$")); |
139 | QRegularExpressionMatch match = rewrite.match(subject: details); |
140 | if (match.hasMatch()) { |
141 | details = match.captured(nth: 1) +QLatin1String(": ") + match.captured(nth: 3); |
142 | } |
143 | if (details.startsWith(s: QLatin1String("file://"))) |
144 | details = details.mid(position: details.lastIndexOf(c: QLatin1Char('/')) + 1); |
145 | } |
146 | |
147 | newType.setData(details); |
148 | |
149 | QString displayName; |
150 | switch (type.message()) { |
151 | case Event: { |
152 | switch (type.detailType()) { |
153 | case Mouse: |
154 | case Key: |
155 | displayName = QString::fromLatin1(ba: "Input:%1").arg(a: type.detailType()); |
156 | break; |
157 | case AnimationFrame: |
158 | displayName = QString::fromLatin1(ba: "AnimationFrame"); |
159 | break; |
160 | default: |
161 | displayName = QString::fromLatin1(ba: "Unknown"); |
162 | } |
163 | break; |
164 | } |
165 | case RangeStart: |
166 | case RangeData: |
167 | case RangeLocation: |
168 | case RangeEnd: |
169 | case Complete: |
170 | Q_UNREACHABLE(); |
171 | break; |
172 | case PixmapCacheEvent: { |
173 | const QString filePath = QUrl(type.location().filename()).path(); |
174 | displayName = QStringView{filePath}.mid(pos: filePath.lastIndexOf(c: QLatin1Char('/')) + 1) |
175 | + QLatin1Char(':') + QString::number(type.detailType()); |
176 | break; |
177 | } |
178 | case SceneGraphFrame: |
179 | displayName = QString::fromLatin1(ba: "SceneGraph:%1").arg(a: type.detailType()); |
180 | break; |
181 | case MemoryAllocation: |
182 | displayName = QString::fromLatin1(ba: "MemoryAllocation:%1").arg(a: type.detailType()); |
183 | break; |
184 | case DebugMessage: |
185 | displayName = QString::fromLatin1(ba: "DebugMessage:%1").arg(a: type.detailType()); |
186 | break; |
187 | case MaximumMessage: { |
188 | const QQmlProfilerEventLocation eventLocation = type.location(); |
189 | // generate hash |
190 | if (eventLocation.filename().isEmpty()) { |
191 | displayName = QString::fromLatin1(ba: "Unknown"); |
192 | } else { |
193 | const QString filePath = QUrl(eventLocation.filename()).path(); |
194 | displayName = QStringView{filePath}.mid( |
195 | pos: filePath.lastIndexOf(c: QLatin1Char('/')) + 1) + |
196 | QLatin1Char(':') + QString::number(eventLocation.line()); |
197 | } |
198 | break; |
199 | } |
200 | } |
201 | |
202 | newType.setDisplayName(displayName); |
203 | d->eventTypes.append(t: newType); |
204 | } |
205 | |
206 | void QmlProfilerData::computeQmlTime() |
207 | { |
208 | // compute levels |
209 | qint64 level0Start = -1; |
210 | int level = 0; |
211 | |
212 | for (const QQmlProfilerEvent &event : std::as_const(t&: d->events)) { |
213 | const QQmlProfilerEventType &type = d->eventTypes.at(i: event.typeIndex()); |
214 | if (type.message() != MaximumMessage) |
215 | continue; |
216 | |
217 | switch (type.rangeType()) { |
218 | case Compiling: |
219 | case Creating: |
220 | case Binding: |
221 | case HandlingSignal: |
222 | case Javascript: |
223 | switch (event.rangeStage()) { |
224 | case RangeStart: |
225 | if (level++ == 0) |
226 | level0Start = event.timestamp(); |
227 | break; |
228 | case RangeEnd: |
229 | if (--level == 0) |
230 | d->qmlMeasuredTime += event.timestamp() - level0Start; |
231 | break; |
232 | default: |
233 | break; |
234 | } |
235 | break; |
236 | default: |
237 | break; |
238 | } |
239 | } |
240 | } |
241 | |
242 | bool compareStartTimes(const QQmlProfilerEvent &t1, const QQmlProfilerEvent &t2) |
243 | { |
244 | return t1.timestamp() < t2.timestamp(); |
245 | } |
246 | |
247 | void QmlProfilerData::sortStartTimes() |
248 | { |
249 | if (d->events.size() < 2) |
250 | return; |
251 | |
252 | // assuming startTimes is partially sorted |
253 | // identify blocks of events and sort them with quicksort |
254 | QVector<QQmlProfilerEvent>::iterator itFrom = d->events.end() - 2; |
255 | QVector<QQmlProfilerEvent>::iterator itTo = d->events.end() - 1; |
256 | |
257 | while (itFrom != d->events.begin() && itTo != d->events.begin()) { |
258 | // find block to sort |
259 | while (itFrom != d->events.begin() && itTo->timestamp() > itFrom->timestamp()) { |
260 | --itTo; |
261 | itFrom = itTo - 1; |
262 | } |
263 | |
264 | // if we're at the end of the list |
265 | if (itFrom == d->events.begin()) |
266 | break; |
267 | |
268 | // find block length |
269 | while (itFrom != d->events.begin() && itTo->timestamp() <= itFrom->timestamp()) |
270 | --itFrom; |
271 | |
272 | if (itTo->timestamp() <= itFrom->timestamp()) |
273 | std::sort(first: itFrom, last: itTo + 1, comp: compareStartTimes); |
274 | else |
275 | std::sort(first: itFrom + 1, last: itTo + 1, comp: compareStartTimes); |
276 | |
277 | // move to next block |
278 | itTo = itFrom; |
279 | itFrom = itTo - 1; |
280 | } |
281 | } |
282 | |
283 | void QmlProfilerData::complete() |
284 | { |
285 | setState(ProcessingData); |
286 | sortStartTimes(); |
287 | computeQmlTime(); |
288 | setState(Done); |
289 | emit dataReady(); |
290 | } |
291 | |
292 | bool QmlProfilerData::isEmpty() const |
293 | { |
294 | return d->events.isEmpty(); |
295 | } |
296 | |
297 | struct StreamWriter { |
298 | QString error; |
299 | |
300 | StreamWriter(const QString &filename) |
301 | { |
302 | if (!filename.isEmpty()) { |
303 | file.setFileName(filename); |
304 | if (!file.open(flags: QIODevice::WriteOnly)) { |
305 | error = QmlProfilerData::tr(s: "Could not open %1 for writing").arg(a: filename); |
306 | return; |
307 | } |
308 | } else { |
309 | if (!file.open(stdout, ioFlags: QIODevice::WriteOnly)) { |
310 | error = QmlProfilerData::tr(s: "Could not open stdout for writing"); |
311 | return; |
312 | } |
313 | } |
314 | |
315 | stream.setDevice(&file); |
316 | stream.setAutoFormatting(true); |
317 | stream.writeStartDocument(); |
318 | writeStartElement(name: "trace"); |
319 | } |
320 | |
321 | ~StreamWriter() { |
322 | writeEndElement(); |
323 | stream.writeEndDocument(); |
324 | file.close(); |
325 | } |
326 | |
327 | template<typename Number> |
328 | void writeAttribute(const char *name, Number number) |
329 | { |
330 | stream.writeAttribute(QLatin1String(name), QString::number(number)); |
331 | } |
332 | |
333 | void writeAttribute(const char *name, const char *value) |
334 | { |
335 | stream.writeAttribute(qualifiedName: QLatin1String(name), value: QLatin1String(value)); |
336 | } |
337 | |
338 | void writeAttribute(const char *name, const QQmlProfilerEvent &event, int i, bool printZero = true) |
339 | { |
340 | const qint64 number = event.number<qint64>(i); |
341 | if (printZero || number != 0) |
342 | writeAttribute(name, number); |
343 | } |
344 | |
345 | template<typename Number> |
346 | void writeTextElement(const char *name, Number number) |
347 | { |
348 | writeTextElement(name, QString::number(number)); |
349 | } |
350 | |
351 | void writeTextElement(const char *name, const char *value) |
352 | { |
353 | stream.writeTextElement(qualifiedName: QLatin1String(name), text: QLatin1String(value)); |
354 | } |
355 | |
356 | void writeTextElement(const char *name, const QString &value) |
357 | { |
358 | stream.writeTextElement(qualifiedName: QLatin1String(name), text: value); |
359 | } |
360 | |
361 | void writeStartElement(const char *name) |
362 | { |
363 | stream.writeStartElement(qualifiedName: QLatin1String(name)); |
364 | } |
365 | |
366 | void writeEndElement() |
367 | { |
368 | stream.writeEndElement(); |
369 | } |
370 | |
371 | private: |
372 | QFile file; |
373 | QXmlStreamWriter stream; |
374 | }; |
375 | |
376 | struct DataIterator |
377 | { |
378 | DataIterator( |
379 | const QmlProfilerDataPrivate *d, |
380 | qxp::function_ref<void(const QQmlProfilerEvent &, qint64)> &&sendEvent) |
381 | : d(d) |
382 | , sendEvent(std::move(sendEvent)) |
383 | {} |
384 | |
385 | void run(); |
386 | |
387 | private: |
388 | void handleRangeEvent(const QQmlProfilerEvent &event, const QQmlProfilerEventType &type); |
389 | void sendPending(); |
390 | void endLevel0(); |
391 | |
392 | const QmlProfilerDataPrivate *d = nullptr; |
393 | const qxp::function_ref<void(const QQmlProfilerEvent &, qint64)> sendEvent; |
394 | |
395 | QQueue<QQmlProfilerEvent> pointEvents; |
396 | QList<QQmlProfilerEvent> rangeStarts[MaximumRangeType]; |
397 | QList<qint64> rangeEnds[MaximumRangeType]; |
398 | |
399 | int level = 0; |
400 | }; |
401 | |
402 | void DataIterator::handleRangeEvent( |
403 | const QQmlProfilerEvent &event, const QQmlProfilerEventType &type) |
404 | { |
405 | QList<QQmlProfilerEvent> &starts = rangeStarts[type.rangeType()]; |
406 | switch (event.rangeStage()) { |
407 | case RangeStart: { |
408 | ++level; |
409 | starts.append(t: event); |
410 | break; |
411 | } |
412 | case RangeEnd: { |
413 | const qint64 invalidTimestamp = -1; |
414 | QList<qint64> &ends = rangeEnds[type.rangeType()]; |
415 | |
416 | // -1 because all valid timestamps are >= 0. |
417 | ends.resize(size: starts.size(), c: invalidTimestamp); |
418 | |
419 | qsizetype i = starts.size(); |
420 | while (ends[--i] != invalidTimestamp) {} |
421 | |
422 | Q_ASSERT(i >= 0); |
423 | Q_ASSERT(starts[i].timestamp() <= event.timestamp()); |
424 | |
425 | ends[i] = event.timestamp(); |
426 | if (--level == 0) |
427 | endLevel0(); |
428 | break; |
429 | } |
430 | default: |
431 | break; |
432 | } |
433 | } |
434 | |
435 | void DataIterator::sendPending() |
436 | { |
437 | // Send all pending events in the order of their start times. |
438 | |
439 | qsizetype index[MaximumRangeType] = { 0, 0, 0, 0, 0, 0 }; |
440 | while (true) { |
441 | |
442 | // Find the range type with the minimum start time. |
443 | qsizetype minimum = MaximumRangeType; |
444 | qint64 minimumTime = std::numeric_limits<qint64>::max(); |
445 | for (qsizetype i = 0; i < MaximumRangeType; ++i) { |
446 | const QList<QQmlProfilerEvent> &starts = rangeStarts[i]; |
447 | if (starts.size() == index[i]) |
448 | continue; |
449 | const qint64 timestamp = starts[index[i]].timestamp(); |
450 | if (timestamp < minimumTime) { |
451 | minimumTime = timestamp; |
452 | minimum = i; |
453 | } |
454 | } |
455 | if (minimum == MaximumRangeType) |
456 | break; |
457 | |
458 | // Send all point events that happened before the range we've found. |
459 | while (!pointEvents.isEmpty() && pointEvents.front().timestamp() < minimumTime) |
460 | sendEvent(pointEvents.dequeue(), 0); |
461 | |
462 | // Send the range itself |
463 | sendEvent(rangeStarts[minimum][index[minimum]], |
464 | rangeEnds[minimum][index[minimum]] - minimumTime); |
465 | |
466 | // Bump the index so that we don't send the same range again |
467 | ++index[minimum]; |
468 | } |
469 | } |
470 | |
471 | void DataIterator::endLevel0() |
472 | { |
473 | sendPending(); |
474 | for (qsizetype i = 0; i < MaximumRangeType; ++i) { |
475 | rangeStarts[i].clear(); |
476 | rangeEnds[i].clear(); |
477 | } |
478 | } |
479 | |
480 | void DataIterator::run() |
481 | { |
482 | for (const QQmlProfilerEvent &event : std::as_const(t: d->events)) { |
483 | const QQmlProfilerEventType &type = d->eventTypes.at(i: event.typeIndex()); |
484 | if (type.rangeType() != MaximumRangeType) |
485 | handleRangeEvent(event, type); |
486 | else if (level == 0) |
487 | sendEvent(event, 0); |
488 | else |
489 | pointEvents.enqueue(t: event); |
490 | } |
491 | |
492 | for (qsizetype i = 0; i < MaximumRangeType; ++i) { |
493 | while (rangeEnds[i].size() < rangeStarts[i].size()) { |
494 | rangeEnds[i].append(t: d->traceEndTime); |
495 | --level; |
496 | } |
497 | } |
498 | |
499 | sendPending(); |
500 | } |
501 | |
502 | bool QmlProfilerData::save(const QString &filename) |
503 | { |
504 | if (isEmpty()) { |
505 | emit error(tr(s: "No data to save")); |
506 | return false; |
507 | } |
508 | |
509 | StreamWriter stream(filename); |
510 | if (!stream.error.isEmpty()) { |
511 | emit error(stream.error); |
512 | return false; |
513 | } |
514 | |
515 | stream.writeAttribute(name: "version", value: PROFILER_FILE_VERSION); |
516 | stream.writeAttribute(name: "traceStart", number: traceStartTime()); |
517 | stream.writeAttribute(name: "traceEnd", number: traceEndTime()); |
518 | |
519 | stream.writeStartElement(name: "eventData"); |
520 | stream.writeAttribute(name: "totalTime", number: d->qmlMeasuredTime); |
521 | |
522 | for (int typeIndex = 0, end = d->eventTypes.size(); typeIndex < end; ++typeIndex) { |
523 | const QQmlProfilerEventType &eventData = d->eventTypes.at(i: typeIndex); |
524 | stream.writeStartElement(name: "event"); |
525 | stream.writeAttribute(name: "index", number: typeIndex); |
526 | if (!eventData.displayName().isEmpty()) |
527 | stream.writeTextElement(name: "displayname", value: eventData.displayName()); |
528 | |
529 | stream.writeTextElement(name: "type", value: eventData.rangeType() == MaximumRangeType |
530 | ? qmlMessageAsString(type: eventData.message()) |
531 | : qmlRangeTypeAsString(type: eventData.rangeType())); |
532 | |
533 | const QQmlProfilerEventLocation location = eventData.location(); |
534 | if (!location.filename().isEmpty()) |
535 | stream.writeTextElement(name: "filename", value: location.filename()); |
536 | if (location.line() >= 0) |
537 | stream.writeTextElement(name: "line", number: location.line()); |
538 | if (location.column() >= 0) |
539 | stream.writeTextElement(name: "column", number: location.column()); |
540 | if (!eventData.data().isEmpty()) |
541 | stream.writeTextElement(name: "details", value: eventData.data()); |
542 | if (eventData.rangeType() == Binding) |
543 | stream.writeTextElement(name: "bindingType", number: eventData.detailType()); |
544 | else if (eventData.message() == Event) { |
545 | switch (eventData.detailType()) { |
546 | case AnimationFrame: |
547 | stream.writeTextElement(name: "animationFrame", number: eventData.detailType()); |
548 | break; |
549 | case Key: |
550 | stream.writeTextElement(name: "keyEvent", number: eventData.detailType()); |
551 | break; |
552 | case Mouse: |
553 | stream.writeTextElement(name: "mouseEvent", number: eventData.detailType()); |
554 | break; |
555 | } |
556 | } else if (eventData.message() == PixmapCacheEvent) |
557 | stream.writeTextElement(name: "cacheEventType", number: eventData.detailType()); |
558 | else if (eventData.message() == SceneGraphFrame) |
559 | stream.writeTextElement(name: "sgEventType", number: eventData.detailType()); |
560 | else if (eventData.message() == MemoryAllocation) |
561 | stream.writeTextElement(name: "memoryEventType", number: eventData.detailType()); |
562 | stream.writeEndElement(); |
563 | } |
564 | stream.writeEndElement(); // eventData |
565 | |
566 | stream.writeStartElement(name: "profilerDataModel"); |
567 | |
568 | auto sendEvent = [&](const QQmlProfilerEvent &event, qint64 duration = 0) { |
569 | Q_ASSERT(duration >= 0); |
570 | const QQmlProfilerEventType &type = d->eventTypes.at(i: event.typeIndex()); |
571 | stream.writeStartElement(name: "range"); |
572 | stream.writeAttribute(name: "startTime", number: event.timestamp()); |
573 | if (duration != 0) |
574 | stream.writeAttribute(name: "duration", number: duration); |
575 | stream.writeAttribute(name: "eventIndex", number: event.typeIndex()); |
576 | if (type.message() == Event) { |
577 | if (type.detailType() == AnimationFrame) { |
578 | // special: animation frame |
579 | stream.writeAttribute(name: "framerate", event, i: 0); |
580 | stream.writeAttribute(name: "animationcount", event, i: 1); |
581 | stream.writeAttribute(name: "thread", event, i: 2); |
582 | } else if (type.detailType() == Key || type.detailType() == Mouse) { |
583 | // numerical value here, to keep the format a bit more compact |
584 | stream.writeAttribute(name: "type", event, i: 0); |
585 | stream.writeAttribute(name: "data1", event, i: 1); |
586 | stream.writeAttribute(name: "data2", event, i: 2); |
587 | } |
588 | } else if (type.message() == PixmapCacheEvent) { |
589 | // special: pixmap cache event |
590 | if (type.detailType() == PixmapSizeKnown) { |
591 | stream.writeAttribute(name: "width", event, i: 0); |
592 | stream.writeAttribute(name: "height", event, i: 1); |
593 | } else if (type.detailType() == PixmapReferenceCountChanged |
594 | || type.detailType() == PixmapCacheCountChanged) { |
595 | stream.writeAttribute(name: "refCount", event, i: 1); |
596 | } |
597 | } else if (type.message() == SceneGraphFrame) { |
598 | stream.writeAttribute(name: "timing1", event, i: 0, printZero: false); |
599 | stream.writeAttribute(name: "timing2", event, i: 1, printZero: false); |
600 | stream.writeAttribute(name: "timing3", event, i: 2, printZero: false); |
601 | stream.writeAttribute(name: "timing4", event, i: 3, printZero: false); |
602 | stream.writeAttribute(name: "timing5", event, i: 4, printZero: false); |
603 | } else if (type.message() == MemoryAllocation) { |
604 | stream.writeAttribute(name: "amount", event, i: 0); |
605 | } |
606 | stream.writeEndElement(); |
607 | }; |
608 | |
609 | DataIterator(d, std::move(sendEvent)).run(); |
610 | |
611 | stream.writeEndElement(); // profilerDataModel |
612 | |
613 | return true; |
614 | } |
615 | |
616 | void QmlProfilerData::setState(QmlProfilerData::State state) |
617 | { |
618 | // It's not an error, we are continuously calling "AcquiringData" for example |
619 | if (d->state == state) |
620 | return; |
621 | |
622 | switch (state) { |
623 | case Empty: |
624 | // if it's not empty, complain but go on |
625 | if (!isEmpty()) |
626 | emit error("Invalid qmlprofiler state change (Empty)"); |
627 | break; |
628 | case AcquiringData: |
629 | // we're not supposed to receive new data while processing older data |
630 | if (d->state == ProcessingData) |
631 | emit error("Invalid qmlprofiler state change (AcquiringData)"); |
632 | break; |
633 | case ProcessingData: |
634 | if (d->state != AcquiringData) |
635 | emit error("Invalid qmlprofiler state change (ProcessingData)"); |
636 | break; |
637 | case Done: |
638 | if (d->state != ProcessingData && d->state != Empty) |
639 | emit error("Invalid qmlprofiler state change (Done)"); |
640 | break; |
641 | default: |
642 | emit error("Trying to set unknown state in events list"); |
643 | break; |
644 | } |
645 | |
646 | d->state = state; |
647 | emit stateChanged(); |
648 | |
649 | // special: if we were done with an empty list, clean internal data and go back to empty |
650 | if (d->state == Done && isEmpty()) { |
651 | clear(); |
652 | } |
653 | return; |
654 | } |
655 | |
656 | int QmlProfilerData::numLoadedEventTypes() const |
657 | { |
658 | return d->eventTypes.size(); |
659 | } |
660 | |
661 | #include "moc_qmlprofilerdata.cpp" |
662 |
Definitions
- PROFILER_FILE_VERSION
- RANGE_TYPE_STRINGS
- MESSAGE_STRINGS
- QmlProfilerDataPrivate
- QmlProfilerDataPrivate
- QmlProfilerData
- ~QmlProfilerData
- clear
- qmlRangeTypeAsString
- qmlMessageAsString
- setTraceStartTime
- setTraceEndTime
- traceStartTime
- traceEndTime
- addEvent
- addEventType
- computeQmlTime
- compareStartTimes
- sortStartTimes
- complete
- isEmpty
- StreamWriter
- StreamWriter
- ~StreamWriter
- writeAttribute
- writeAttribute
- writeAttribute
- writeTextElement
- writeTextElement
- writeTextElement
- writeStartElement
- writeEndElement
- DataIterator
- DataIterator
- handleRangeEvent
- sendPending
- endLevel0
- run
- save
- setState
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