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// Copyright (C) 2019 Klarälvdalens Datakonsult AB, a KDAB Group company,
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "ctftracemanager.h"
#include "ctfstatisticsmodel.h"
#include "ctftimelinemodel.h"
#include "ctfvisualizerconstants.h"
#include "ctfvisualizertr.h"
#include <coreplugin/icore.h>
#include <tracing/timelinemodelaggregator.h>
#include <QMessageBox>
namespace CtfVisualizer::Internal {
using json = nlohmann::json;
using namespace Constants;
CtfTraceManager::CtfTraceManager(QObject *parent,
Timeline::TimelineModelAggregator *modelAggregator,
CtfStatisticsModel *statisticsModel)
: QObject(parent)
, m_modelAggregator(modelAggregator)
, m_statisticsModel(statisticsModel)
{
}
qint64 CtfTraceManager::traceDuration() const
{
return qint64((m_traceEnd - m_traceBegin) * 1000);
}
qint64 CtfTraceManager::traceBegin() const
{
return qint64((m_traceBegin - m_timeOffset) * 1000);
}
qint64 CtfTraceManager::traceEnd() const
{
return qint64((m_traceEnd - m_timeOffset) * 1000);
}
void CtfTraceManager::addEvent(const json &event)
{
try {
const double timestamp = event.value(CtfTracingClockTimestampKey, -1.0);
if (timestamp < 0) {
// events without or with negative timestamp will be ignored
return;
}
if (m_timeOffset < 0) {
// the timestamp of the first event is used as the global offset
m_timeOffset = timestamp;
}
static const auto getStringValue =
[](const json &event, const char *key, const QString &def) {
if (!event.contains(key))
return def;
const json val = event[key];
if (val.is_string())
return QString::fromStdString(val);
if (val.is_number()) {
return QString::number(int(val));
}
return def;
};
const QString processId = getStringValue(event, CtfProcessIdKey, "0");
const QString threadId = getStringValue(event, CtfThreadIdKey, processId);
if (!m_threadModels.contains(threadId)) {
addModelForThread(threadId, processId);
}
if (event.value(CtfEventPhaseKey, "") == CtfEventTypeMetadata) {
const std::string name = event[CtfEventNameKey];
if (name == "thread_name") {
m_threadNames[threadId] = QString::fromStdString(event["args"]["name"]);
} else if (name == "process_name") {
m_processNames[processId] = QString::fromStdString(event["args"]["name"]);
}
}
const QPair<bool, qint64> result = m_threadModels[threadId]->addEvent(event, m_timeOffset);
const bool visibleOnTimeline = result.first;
if (visibleOnTimeline) {
m_traceBegin = std::min(m_traceBegin, timestamp);
m_traceEnd = std::max(m_traceEnd, timestamp);
} else if (m_timeOffset == timestamp) {
// this timestamp was used as the time offset but it is not a visible element
// -> reset the time offset again:
m_timeOffset = -1.0;
}
} catch (...) {
m_errorString = Tr::tr("Error while parsing CTF data: %1.")
.arg("<pre>" + QString::fromStdString(event.dump()) + "</pre>");
}
}
void CtfTraceManager::finalize()
{
bool userConsentToIgnoreDeepTraces = false;
auto it = m_threadModels.begin();
while (it != m_threadModels.end()) {
if (it.value()->m_maxStackSize > 512) {
if (!userConsentToIgnoreDeepTraces) {
QMessageBox::StandardButton answer
= QMessageBox::question(Core::ICore::dialogParent(),
Tr::tr("CTF Visualizer"),
Tr::tr("The trace contains threads with stack depth > "
"512.\nDo you want to display them anyway?"),
QMessageBox::Yes | QMessageBox::No,
QMessageBox::No);
if (answer == QMessageBox::No) {
userConsentToIgnoreDeepTraces = true;
} else {
break;
}
}
m_threadRestrictions.remove(it.key());
it = m_threadModels.erase(it);
} else {
++it;
}
}
for (CtfTimelineModel *model: std::as_const(m_threadModels)) {
model->finalize(m_traceBegin, m_traceEnd,
m_processNames[model->m_processId], m_threadNames[model->m_threadId]);
}
// TimelineModelAggregator::addModel() is called here because it
// needs to be run in the main thread
addModelsToAggregator();
}
bool CtfTraceManager::isEmpty() const
{
return m_threadModels.isEmpty();
}
int CtfTraceManager::getSelectionId(const std::string &name)
{
auto it = m_name2selectionId.find(name);
if (it == m_name2selectionId.end())
it = m_name2selectionId.insert(name, m_name2selectionId.size());
return *it;
}
QList<CtfTimelineModel *> CtfTraceManager::getSortedThreads() const
{
QList<CtfTimelineModel *> models = m_threadModels.values();
std::sort(models.begin(),
models.end(),
[](const CtfTimelineModel *a, const CtfTimelineModel *b) {
return (a->m_processId != b->m_processId) ? (a->m_processId < b->m_processId)
: (a->m_threadId < b->m_threadId);
});
return models;
}
void CtfTraceManager::setThreadRestriction(const QString &tid, bool restrictToThisThread)
{
if (m_threadRestrictions.value(tid) == restrictToThisThread)
return;
m_threadRestrictions[tid] = restrictToThisThread;
addModelsToAggregator();
}
bool CtfTraceManager::isRestrictedTo(const QString &tid) const
{
return m_threadRestrictions.value(tid);
}
void CtfTraceManager::addModelForThread(const QString &threadId, const QString &processId)
{
CtfTimelineModel *model = new CtfTimelineModel(m_modelAggregator, this, threadId, processId);
m_threadModels.insert(threadId, model);
m_threadRestrictions.insert(threadId, false);
connect(model, &CtfTimelineModel::detailsRequested, this,
&CtfTraceManager::detailsRequested);
}
void CtfTraceManager::addModelsToAggregator()
{
const QList<CtfTimelineModel *> models = getSortedThreads();
const bool showAll = std::none_of(m_threadRestrictions.begin(), m_threadRestrictions.end(), [](bool value) {
return value;
});
QVariantList modelsToAdd;
for (CtfTimelineModel *model: models) {
if (showAll || isRestrictedTo(model->tid()))
modelsToAdd.append(QVariant::fromValue(model));
}
m_modelAggregator->setModels(modelsToAdd);
updateStatistics();
}
void CtfTraceManager::updateStatistics()
{
const bool showAll = std::none_of(m_threadRestrictions.begin(), m_threadRestrictions.end(), [](bool value) {
return value;
});
m_statisticsModel->beginLoading();
for (auto thread : std::as_const(m_threadModels)) {
if (showAll || m_threadRestrictions[thread->tid()])
{
const int eventCount = thread->count();
for (int i = 0; i < eventCount; ++i) {
QString title = thread->eventTitle(i);
m_statisticsModel->addEvent(title, thread->duration(i));
}
}
}
m_statisticsModel->setMeasurementDuration(qint64((m_traceEnd - m_traceBegin) * 1000));
m_statisticsModel->endLoading();
}
void CtfTraceManager::clearAll()
{
m_errorString.clear();
m_modelAggregator->clear();
for (CtfTimelineModel *model: std::as_const(m_threadModels)) {
model->deleteLater();
}
m_threadModels.clear();
m_traceBegin = std::numeric_limits<double>::max();
m_traceEnd = std::numeric_limits<double>::min();
m_timeOffset = -1;
}
QString CtfTraceManager::errorString() const
{
return m_errorString;
}
} // namespace CtfVisualizer::Internal
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