Hello again,

could you please Marcus, or somebody else, give me some hint for sending
done message to a block's "system" port. Are all blocks by default
subscribed to system port?

Best,
Nemanja

On Tue, May 26, 2015 at 2:37 PM, Nemanja Savic <vlasi...@gmail.com> wrote:

> Hi,
>
> thank you Marcus for your fast answer. Well, the problem is that nobody
> ecept scheduler knows when the flowgraph has finished, so I don't know who
> should sent that message to the block. This is however not of crucial
> importance for me. Namely I wanted to test some of my custom blocks, and
> test flowgraph necever reached completion, but as soon as message accepting
> dummy block was out everything was fine.
>
> Best,
> Nemanja
>
> On Tue, May 26, 2015 at 2:29 PM, Marcus Müller <marcus.muel...@ettus.com>
> wrote:
>
>> Hi Nemanja,
>>
>> the point is that with message passing, it's not clear that your block is
>> ever finished.
>> Hence in block.cc, we have a mechanism to retrieve the "finishedness" of
>> a pure-message-block.
>>
>>   bool
>>   block::finished()
>>   {
>>     if((detail()->ninputs() != 0) || (detail()->noutputs() != 0))
>>       return false;
>>     else
>>       return d_finished;
>>   }
>>
>>
>> So, you'll have to set the d_finished variable of your block; sadly,
>> that's a private one by design (I think there are thread-safety reasons
>> this is not directly exposed, but I'm not sure -- I'd have to as T[io]m
>> about that).
>> The proper way to do so is to send your block a message to its
>> pmt::mp("system") port, containing pmt::mp("done").
>>
>>
>> Best regards,
>> Marcus
>>
>>
>> On 05/26/2015 02:10 PM, Nemanja Savic wrote:
>>
>> Hi all,
>>
>> I have a block that is used only for acepting messages and writing their
>> content into database. The block is written in python and it has no work
>> function, but only constructor and message handler. However when I run my
>> flowgraph it won't finish until I terminate it. When I exclude this block
>> it runs to completion normally.
>> Is there any issue with messages in this case. Should I manually delete
>> messages from the message queue or something like that.
>>
>> Best,
>>
>> --
>> Nemanja Savić
>>
>>
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>
>
> --
> Nemanja Savić
>



-- 
Nemanja Savić
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