scriptThread.dataReceivedSignal.connect with different functions

[Anonymous]

Bonjour,

I'd like to use
scriptThread.dataReceivedSignal.connect to alternate between different
parsings.

According some debug and  it seems that the more I call the connect
signal to different functions, whitout removing the previous one.

• This behavior should be specified in the documentation
• It could be usefull to chain or adding features
• It could be reset to "nothing"

I'll find a workaround with a global variable and a switch case.
Nevertheless anyone have experienced this ? Or suggest a better solution ?

Best regards,
Pascal

Here is one example :
[... script initialization ...]

// *** receivers declaration ***
    function SerialReceive_type1(buffer1)    {
    // do some job with RS232 messages format number 1
    }

function SerialReceive_type2(buffer2)    {
    // do some other job with RS232 messages format number 2
    }

// *** Main task ***
scriptThread.dataReceivedSignal.connect(SerialReceive_type1);
    // do tasks while using receiver and parsing for type 1 messages
[...]

scriptThread.dataReceivedSignal.connect(SerialReceive_type2);
    // do tasks while using receiver and parsing for type 2 messages
[...]

scriptThread.dataReceivedSignal.connect(SerialReceive_type1);
    // switch back to messages type 1
[...]

scriptThread.dataReceivedSignal.connect(null);
    // to connection for parsing needed anymore
    // this last line return an error

[... script end ...]

The calls trace of such script will looks like :
    receive type 1
    receive type 1
    receive type 1
    receive type 1
    // switch to type 2
    receive type 2
    receive type 1
    receive type 2
    receive type 1
    // switch back to type 1
    receive type 1
    receive type 2
    receive type 1
    receive type 1
    receive type 2
    receive type 1

--

Pascal Delrot
Ingénieur électronique

1, rue Georges Le breton
22370 Pléneuf-Val-André, France

Office :+33 9 67 05 00 40

www.samea-innovation.com http://www.samea-innovation.com/

[Pascal DELROT]

Note : here is my Sourceforge profile, as the post was anonymous

[Stefan Zieker]

Hi Pascsal,

you can call disconnect to remove the callback function:

scriptThread.dataReceivedSignal.disconnect(SerialReceive_type1);

I never used this and therefore I forgot to discribe it in the manuel.

Regards
Stefan

[Pascal DELROT]

Hello Stefan, so let's try ! I'll keep you update today. Pascal