Re: [Discuss-gnuradio] Proper block inheritance

[Nemanja Savic]

Actually my question is: is there any example where some block is derived from two other blocks (for example from two sync blocks)?

On Tue, Sep 10, 2013 at 12:45 PM, Nemanja Savic <address@hidden> wrote:

Thank you Josh. At the moment I wanted to make this as simple as possible. My idea was to make a new class(block type) and to make my impl class inherit that class also. In that new class I would store message port subscription and a method for sending message that deframer received valid message. The problem is i can't really figure out how to make a the new class that will be used only to be inheritted by my deframer block.

Something simillar is done with filter blocks in gnuradio, there are few classes declared in fir_filter.h and other filters inherit that class.

Cheers,
Nemanja

On Fri, Sep 6, 2013 at 1:07 AM, Josh Blum <address@hidden> wrote:

On 09/05/2013 02:12 AM, Nemanja Savic wrote:
> HI all guys,
>
> I have 3 different packet deframers, and now I would like them to be able
> to send a message to a certain block about correct packet reception. In
> order to do that I want to make some "phantom" block that will have message
> out port.

Are you looking to have a sort of control block that can apply
configuration settings to these packet deframers? Either once at
init-time or at runtime based on some conditions? If so, this also might
make sense for you:

In GRAS, your deframers would register calls for configuring packet
reception:
https://github.com/guruofquality/gras/wiki/Codeguide#method-registration

In the top block, when you connect flows, you can also register the
blocks into a tree. The control block could then find the deframers at
runtime and apply new settings dynamically:
https://github.com/guruofquality/gras/wiki/Codeguide#wiki-zero-configuration


Its all GRC friendly and thread safe. You could do this with messages
too, it really depends what works best or makes the most sense. Anyway,
I have just been thinking about this kind of stuff and I wanted to share.

-josh

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

--
Nemanja Savić

--
Nemanja Savić