void QmlCppEngine::slaveEngineStateChanged
(DebuggerEngine *slaveEngine, const DebuggerState newState)
{
DebuggerEngine *otherEngine = (slaveEngine == m_cppEngine)
? m_qmlEngine : m_cppEngine;
QTC_CHECK(otherEngine != slaveEngine);
if (debug) {
EDEBUG("GOT SLAVE STATE: " << slaveEngine << newState);
EDEBUG(" OTHER ENGINE: " << otherEngine << otherEngine->state());
EDEBUG(" COMBINED ENGINE: " << this << state() << isDying());
}
// Idea is to follow the state of the cpp engine, except where we are stepping in QML.
// That is, when the QmlEngine moves between InferiorStopOk, and InferiorRunOk, InferiorStopOk ...
//
// Accordingly, the 'active engine' is the cpp engine until the qml engine enters the
// InferiorStopOk state. The cpp engine becomes the active one again as soon as it itself enters
// the InferiorStopOk state.
if (slaveEngine == m_cppEngine) {
switch (newState) {
case DebuggerNotReady: {
// Can this ever happen?
break;
}
case EngineSetupRequested: {
// set by queueSetupEngine()
QTC_ASSERT(state() == EngineSetupRequested, qDebug() << state());
break;
}
case EngineSetupFailed: {
qmlEngine()->quitDebugger();
notifyEngineSetupFailed();
break;
}
case EngineSetupOk: {
notifyEngineSetupOk();
break;
}
case InferiorSetupRequested: {
// set by queueSetupInferior()
QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
break;
}
case InferiorSetupFailed: {
qmlEngine()->quitDebugger();
notifyInferiorSetupFailed();
break;
}
case InferiorSetupOk: {
notifyInferiorSetupOk();
break;
}
case EngineRunRequested: {
// set by queueRunEngine()
break;
}
case EngineRunFailed: {
qmlEngine()->quitDebugger();
notifyEngineRunFailed();
break;
}
case InferiorUnrunnable: {
qmlEngine()->quitDebugger();
notifyInferiorUnrunnable();
break;
}
case InferiorRunRequested: {
// might be set already by notifyInferiorRunRequested()
QTC_ASSERT(state() == InferiorRunRequested
|| state() == InferiorStopOk, qDebug() << state());
if (state() != InferiorRunRequested)
notifyInferiorRunRequested();
break;
}
case InferiorRunOk: {
QTC_ASSERT(state() == EngineRunRequested
|| state() == InferiorRunRequested, qDebug() << state());
if (state() == EngineRunRequested)
notifyEngineRunAndInferiorRunOk();
else if (state() == InferiorRunRequested)
notifyInferiorRunOk();
if (qmlEngine()->state() == InferiorStopOk) {
// track qml engine again
setState(InferiorStopRequested);
notifyInferiorStopOk();
setActiveEngine(m_qmlEngine);
}
break;
}
case InferiorRunFailed: {
qmlEngine()->quitDebugger();
notifyInferiorRunFailed();
break;
}
case InferiorStopRequested: {
if (m_activeEngine == cppEngine()) {
// might be set by doInterruptInferior()
QTC_ASSERT(state() == InferiorStopRequested
|| state() == InferiorRunOk, qDebug() << state());
if (state() == InferiorRunOk)
setState(InferiorStopRequested);
} else {
// we're debugging qml, but got an interrupt, or abort
QTC_ASSERT(state() == InferiorRunOk
|| state() == InferiorStopOk
|| state() == InferiorRunRequested, qDebug() << state());
if (state() == InferiorRunOk) {
setState(InferiorStopRequested);
} else if (state() == InferiorStopOk) {
notifyInferiorRunRequested();
notifyInferiorRunOk();
setState(InferiorStopRequested);
} else if (state() == InferiorRunRequested) {
notifyInferiorRunOk();
setState(InferiorStopRequested);
}
// now track cpp engine
setActiveEngine(m_cppEngine);
}
break;
}
case InferiorStopOk: {
if (isDying()) {
EDEBUG("... CPP ENGINE STOPPED DURING SHUTDOWN ");
QTC_ASSERT(state() == InferiorStopRequested
|| state() == InferiorRunOk
|| state() == InferiorStopOk, qDebug() << state());
// Just to make sure, we're shutting down anyway ...
setActiveEngine(m_cppEngine);
if (state() == InferiorStopRequested)
setState(InferiorStopOk);
// otherwise we're probably inside notifyInferiorStopOk already
} else {
if (m_activeEngine != cppEngine()) {
showStatusMessage(tr("C++ debugger activated"));
setActiveEngine(m_cppEngine);
}
QTC_ASSERT(state() == InferiorStopRequested
|| state() == InferiorRunRequested
|| state() == EngineRunRequested
|| state() == InferiorRunOk
|| state() == InferiorStopOk, qDebug() << state());
switch (state()) {
case InferiorStopRequested:
EDEBUG("... CPP ENGINE STOPPED EXPECTEDLY");
notifyInferiorStopOk();
break;
case EngineRunRequested:
EDEBUG("... CPP ENGINE STOPPED ON STARTUP");
notifyEngineRunAndInferiorStopOk();
break;
case InferiorRunOk:
EDEBUG("... CPP ENGINE STOPPED SPONTANEOUSLY");
notifyInferiorSpontaneousStop();
break;
case InferiorRunRequested:
// can happen if qml engine was active
notifyInferiorRunFailed();
default:
break;
}
}
break;
}
case InferiorStopFailed: {
QTC_ASSERT(state() == InferiorStopRequested, qDebug() << state());
notifyInferiorStopFailed();
break;
}
case InferiorExitOk: {
// InferiorExitOk will be called through notifyInferiorExited
// when InferiorShutDownOk is reached
qmlEngine()->quitDebugger();
break;
}
case InferiorShutdownRequested: {
// might be set by queueShutdownInferior() already
QTC_ASSERT(state() == InferiorShutdownRequested
|| state() == InferiorStopOk, qDebug() << state());
if (state() == InferiorStopOk)
setState(InferiorShutdownRequested);
qmlEngine()->quitDebugger();
break;
}
case InferiorShutdownFailed: {
QTC_ASSERT(state() == InferiorShutdownRequested, qDebug() << state());
notifyInferiorShutdownFailed();
break;
}
case InferiorShutdownOk: {
if (state() == InferiorShutdownRequested) {
notifyInferiorShutdownOk();
} else {
// we got InferiorExitOk before, but ignored it ...
notifyInferiorExited();
}
break;
}
case EngineShutdownRequested: {
// set by queueShutdownEngine()
QTC_ASSERT(state() == EngineShutdownRequested, qDebug() << state());
break;
}
case EngineShutdownFailed: {
QTC_ASSERT(state() == EngineShutdownRequested, qDebug() << state());
notifyEngineShutdownFailed();
break;
}
case EngineShutdownOk: {
QTC_ASSERT(state() == EngineShutdownRequested, qDebug() << state());
notifyEngineShutdownOk();
break;
}
case DebuggerFinished: {
// set by queueFinishDebugger()
QTC_ASSERT(state() == DebuggerFinished, qDebug() << state());
break;
}
}
} else {
// QML engine state change
if (newState == InferiorStopOk) {
if (isDying()) {
EDEBUG("... QML ENGINE STOPPED DURING SHUTDOWN ");
// Just to make sure, we're shutting down anyway ...
setActiveEngine(m_cppEngine);
if (state() == InferiorStopRequested)
notifyInferiorStopOk();
// otherwise we're probably inside notifyInferiorStopOk already
} else {
if (m_activeEngine != qmlEngine()) {
showStatusMessage(tr("QML debugger activated"));
setActiveEngine(m_qmlEngine);
}
QTC_ASSERT(state() == InferiorRunOk
|| state() == InferiorStopRequested
|| state() == InferiorShutdownRequested, qDebug() << state());
if (state() == InferiorRunOk)
notifyInferiorSpontaneousStop();
else if (state() == InferiorStopRequested)
notifyInferiorStopOk();
}
} else if (newState == InferiorRunOk) {
if (m_activeEngine == qmlEngine()) {
QTC_ASSERT(state() == InferiorRunRequested, qDebug() << state());
notifyInferiorRunOk();
}
}
}
}
void GdbCoreEngine::runEngine()
{
QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
notifyInferiorUnrunnable();
updateAll();
}
