Experimental Physics and
Industrial Control System

Hm… I am not explicitly calling release() anywhere. This is my processCallbacks function-  everything else in my plugin, AFAIK, doesn’t access any shared resources.

 

void NDPluginTemperature::processCallbacks(NDArray *pArray){

    static const char *functionName = "processCallbacks";

    NDArrayInfo_t arrayInfo;

    if(pArray->dataType != NDUInt16){

        asynPrint(this->pasynUserSelf, ASYN_TRACE_ERROR,

        "%s:%s: Only UInt16 supported.", driverName, functionName);

        return;

    }

    std::string lastCalFileName = this->calibrationFileName;

    getStringParam(this->calibrationFileNameIdx, this->calibrationFileName);

    if(this->calibrationFileName != lastCalFileName){

        this->processCalibrationFile();

    }

    int arrayCallbacks;

    getIntegerParam(NDArrayCallbacks, &arrayCallbacks);

    if(arrayCallbacks==1){

        epicsTimeStamp before;

        epicsTimeGetCurrent(&before);

        NDPluginDriver::beginProcessCallbacks(pArray);

        this->pNDArrayPool->convert(pArray,&(this->inputArray), NDUInt16);

        if(NULL == this->outputArray){

            this->pNDArrayPool->convert(pArray,&(this->outputArray),NDUInt16);

        }

        //unlock while the plug-and-chug happens. No shared resources are accessed at this time.

        inputArray->getInfo(&arrayInfo);

        this->unlock();

        this->doTemperatureConversion(this->inputArray, this->outputArray, &arrayInfo);

        this->lock();

        setIntegerParam(NDArraySizeX, (int)outputArray->dims[arrayInfo.xDim].size);

        setIntegerParam(NDArraySizeY, (int)outputArray->dims[arrayInfo.yDim].size);

       epicsTimeStamp after;

        epicsTimeGetCurrent(&after);

        double delta = epicsTimeDiffInSeconds(&after, &before);

        cout<<"Took "<<delta<<" s"<<endl;

        setDoubleParam(runTimeIdx, delta);

        NDPluginDriver::endProcessCallbacks(outputArray, false, true);

        callParamCallbacks();

    }

}

 

From: Mark Rivers <rivers at cars.uchicago.edu>
Sent: Tuesday, May 3, 2022 11:37 AM
To: tech-talk at aps.anl.gov; Daykin, Evan <daykin at frib.msu.edu>
Subject: Re: NDArrayPool:reserve ERROR, reference count = 0, should be = 1

 

[EXTERNAL] This email originated from outside of FRIB

Hi Evan,