QStateMachine segmentation fault

rspock

Hi guys,

I've been using QStateMachine to controll a machine process. This is the code:

this->dispenserCycleFsm = new QStateMachine(this);

    //general dispenser state machine
    LOGINFO("Inizializzazione macchina a stati del dispenser");

    cycling=new DispenserState(tr("cycling"),dispenserData);
    stopped = new QFinalState();
    finished = new QFinalState();
    /*
    stopped = new DispenserFinalState(tr("stopped"),dispenserData);
    finished = new DispenserFinalState(tr("finished"),dispenserData);
    */
    cycling_movingRequest=new TurnstileMovingState(tr("moving request"),dispenserData,cycling);
    cycling_fcInCheckDelay = new TimerState(tr("fcIn check delay"),Params::Instance()->CYCLE_FCIN_DELAY,dispenserData,cycling);
    cycling_waitingFcIn=new TurnstileStoppedOnExit(tr("waitingFcIn"),dispenserData,cycling);
    cycling_waitProductOut=new DispenserState(tr("waitProductOut"),dispenserData,cycling);
    cycling->setInitialState(cycling_movingRequest);


    connect(stopped,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));
    connect(cycling_movingRequest,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));
    connect(cycling_fcInCheckDelay,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));
    connect(cycling_waitingFcIn,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));
    connect(cycling_waitProductOut,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));
    connect(finished,SIGNAL(stateChanged(QString)),this,SLOT(setDispenserStateString(QString)));

    //condizioni di stop
    cycling->addTransition(new SignalTransition("",this,SIGNAL(stopTurnstile()),stopped));
    connect(stopped,SIGNAL(entered()),this,SLOT(cycleStop()));

    cycling_movingRequest->addTransition(new OutputOnTransition(dispenserData.hwBoardAddress,dispenserData.motorOut,"out on",cycling_fcInCheckDelay));
    cycling_fcInCheckDelay->addTransition(new SignalTransition("",cycling_fcInCheckDelay,SIGNAL(triggerd()),cycling_waitingFcIn));
    cycling_waitingFcIn->addTransition(new InputOnTransition(dispenserData.hwBoardAddress,dispenserData.fcIn,"fc on",cycling_waitProductOut));

    cycling_waitProductOut->addTransition(new InputOffTransition(dispenserData.vuBoardAddress,dispenserData.outputFcIn," out fc off",finished));
    cycling_waitProductOut->addTransition(new InputOffTransition(dispenserData.vuBoardAddress2,dispenserData.outputFcIn2," out fc off",finished));
    cycling_waitProductOut->addTransition(new SignalTransition("",this,SIGNAL(forceCycleEnd()),finished));

    connect(cycling_waitProductOut,SIGNAL(entered()),this,SLOT(checkForceCycleEnd()));

    connect(finished,SIGNAL(entered()),this,SLOT(cycleEnd()));

    dispenserCycleFsm->addState(stopped);
    dispenserCycleFsm->addState(cycling);
    dispenserCycleFsm->addState(finished);
    dispenserCycleFsm->setInitialState(cycling);

but sometimes I have a segmentation fault when the QFinalState is reached.

Segmentation Stack Trace

I'm using qt 4.8.

Thanks to all

SGaist

Hi,

You should run your application and then post the backtrace here.