Re: [Discuss-gnuradio] Unable to stop the flow graph after calling stop()

[Activecat]

Dear Marcus,

Says, the constructor performed some basic checking on the constructor arguments, then had found some fatal error (says, division by zero) and decided to ban the flowgraph from being executed.  

A workaround is to get the constructor to set a class variable to false, says, 

    d_valid = false;  

then in the work() it will check this d_valid as follows:

    int work()

    {

        if ( ! d_valid )

           return -1

        ......... 

        .........  (other stuff as usual)

    }

But isn't there a better way to do this ..?

(to ban the flowgraph from being executed within the constructor)

Please advise, thanks.

Regards,

Activecat

On Mon, Mar 3, 2014 at 5:25 PM, Marcus Müller <address@hidden> wrote:

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Activecat,

the constructor of a block must have been called before the block has
been connect()ed; so there's no way a flowgraph is already running
when your block's constructor is called.

Greetings,
Marcus

On 03.03.2014 06:53, Activecat wrote:
> Dear Sir, Thank you very much.
>
> What if, we want to stop the flow graph in the constructor of a
> block?
>
> In work() we can just return -1. But in constructor, what value
> should be returned, also -1  ?
>
> Regards, Activecat
>
>
> On Sun, Feb 2, 2014 at 9:05 PM, Martin Braun
> <address@hidden> wrote:
>
>> On 01.02.2014 13:51, Activecat wrote:
>>
>>> But the function stop() fails to work. The flow graph continue
>>> executing infinitely...
>>>
>>> Question: How to stop the flow graph when this->d_complete ==
>>> true ?
>>>
>>
>> Return -1 (or WORK_DONE) in your work() function.
>>
>> MB
>>
>>
>> _______________________________________________ Discuss-gnuradio
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>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>
>
>
> _______________________________________________ Discuss-gnuradio
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