memory leak seen while using getServices() call in a loop

[SudhindraMewundi]

Hi Ian,

I am trying to connect to a BLE sensor device from RaspberryPi and get information by reading the characteristics on it. All works fine with the below skeleton code except that I see a small memory leak when used over a period of time. Below is the code that I use to connect and read from the characteristic. I am able to get the data. On my RaspberryPi I see that the memory increases by 0.1% for every 220+ counts of the while loop.

When checked for memory leak it was seen that only the lbleServlist = lPerHandle.getServices() function was causing the leak and I am deleting the list below as del lbleServlist[:] since I am using pythin2.7

Please suggest what might be the cause for the leak using the getServices() call on python 2.7.

Thanks Sudhindra

def fble_connect(lMACaddr,lType,lThreadNum): global mutex

while True:
# start the BLE part here
    mutex.acquire()
    try:
        lPerHandle = btle.Peripheral(lMACaddr, lType)
        lbleServlist = lPerHandle.getServices()        #<----> Memory leak <---->
        lSensorService = lPerHandle.getServiceByUUID(btle.UUID("ae27a3a0-6ef8-46f2-a3ea-02d113fe1f2e"))
        lChArr = lSensorService.getCharacteristics()

        lCharacteristic = lChArr[0]
        lSensorArr = lCharacteristic.read()

        lPerHandle.disconnect()

        del lPerHandle
        del lChArr[:]
        del lbleServlist[:]
        del lSensorService
        del lSensorArr

        mutex.release()
        time.sleep(1)
    except:
        if DEBUG:
            print("Unable to connect yet....thread %d", lThreadNum)
        mutex.release()
        time.sleep(1)

[Judas2016]

I am experiencing the same problem, reports back through Python as OS unable to allocate memory after long term testing cycles.

[Jaftem]

Seeing the same, but also possibly for getCharacteristics(). Big issue when you want to scan keep your program running forever. Any updates?