Re: [Discuss-gnuradio] gnuradio message passing

Hi,

message passing is implemented asynchronously by binding functions to message ports.

[1] is the page that explains message ports in great detail.

So first you declare your message ports preferably in your blocks constructor.

Than you bind one of your functions to an incoming message port. The functions parameter has to be a pmt::pmt_t.

Everytime a message is published to this port, this function will be called.

For outgoing message ports, you just generate your pmt object and call the publish method.

Exact method names etc. are explained on the GNU Radio manual page.

happy hacking

Johannes

[1] http://gnuradio.org/doc/doxygen/page_msg_passing.html

On Thu, Jan 23, 2014 at 5:34 AM, MHMND Herath <mhher@ou.ac.lk> wrote:

Message passing is described in web site. I do not know where to put codes in
c++ sync blocks. Can you please explain how to implement message passing with
example. Do we need for loop in work function. How to return noutput_items.
Thanks
Neil
And another thing. How to remove inserted GRC cusome module from GRC.


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