QQmlProfilerService: Avoid type ambiguities

Use C++ cast operators, and always choose types of defined length when
interacting with the packet protocol. Also, don't let the client
overflow the flush interval setting.

Change-Id: I2f4654d4e3e350a979a989784dc61fbc8b97df2a
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 8 insertions, 5 deletions

diff --git a/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservice.cpp b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservice.cpp
index c388c6e74a..0d69b2ab66 100644
--- a/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservice.cpp
+++ b/src/plugins/qmltooling/qmldbg_profiler/qqmlprofilerservice.cpp
@@ -240,7 +240,7 @@ void QQmlProfilerServiceImpl::startProfiling(QJSEngine *engine, quint64 features
 
     QQmlDebugPacket d;
 
-    d << m_timer.nsecsElapsed() << (int)Event << (int)StartTrace;
+    d << m_timer.nsecsElapsed() << static_cast<qint32>(Event) << static_cast<qint32>(StartTrace);
     bool startedAny = false;
     if (engine != 0) {
         const auto range = qAsConst(m_engineProfilers).equal_range(engine);
@@ -338,7 +338,8 @@ void QQmlProfilerServiceImpl::sendMessages()
 
     QQmlDebugPacket traceEnd;
     if (m_waitingForStop) {
-        traceEnd << m_timer.nsecsElapsed() << (int)Event << (int)EndTrace;
+        traceEnd << m_timer.nsecsElapsed() << static_cast<qint32>(Event)
+                 << static_cast<qint32>(EndTrace);
 
         QSet<QJSEngine *> seen;
         for (QQmlAbstractProfilerAdapter *profiler : qAsConst(m_startTimes)) {
@@ -373,7 +374,7 @@ void QQmlProfilerServiceImpl::sendMessages()
         messages << traceEnd.data();
 
         QQmlDebugPacket ds;
-        ds << (qint64)-1 << (int)Complete;
+        ds << static_cast<qint64>(-1) << static_cast<qint32>(Complete);
         messages << ds.data();
         m_waitingForStop = false;
     }
@@ -414,7 +415,7 @@ void QQmlProfilerServiceImpl::messageReceived(const QByteArray &message)
     int engineId = -1;
     quint64 features = std::numeric_limits<quint64>::max();
     bool enabled;
-    uint flushInterval = 0;
+    quint32 flushInterval = 0;
     stream >> enabled;
     if (!stream.atEnd())
         stream >> engineId;
@@ -422,7 +423,9 @@ void QQmlProfilerServiceImpl::messageReceived(const QByteArray &message)
         stream >> features;
     if (!stream.atEnd()) {
         stream >> flushInterval;
-        m_flushTimer.setInterval(flushInterval);
+        m_flushTimer.setInterval(
+                    static_cast<int>(qMin(flushInterval,
+                                          static_cast<quint32>(std::numeric_limits<int>::max()))));
         auto timerStart = static_cast<void(QTimer::*)()>(&QTimer::start);
         if (flushInterval > 0) {
             connect(&m_flushTimer, &QTimer::timeout, this, &QQmlProfilerServiceImpl::flush);