Hi Marcus, Thanks for the tip.
In this case, what type of conditions to use to reconfigure a flowgraph (connect/disconnect blocks)? In GNU Radio usage manual, the only example given is time condition " time.sleep(0.01)" https://www.gnuradio.org/doc/doxygen/page_operating_fg.html Best Regards, Le lun. 21 oct. 2019 à 13:22, Müller, Marcus (CEL) <muel...@kit.edu> a écrit : > Hello! > > Re: 1 > > That's not how GNU Radio should be used, and thus, it's impossible to > do that, architecturally. Connecting blocks pretty much has non- > deterministic behaviour w.r.t. to buffer state, and also, without the > block connected, your flow graph probably wouldn't be properly > connected and couldn't even start! > > Instead, have a block (not a hier block) that outputs items according > to some state. Often, it's easy to transport state transitions as > stream tags. > > Re: 2 > > Hier blocks shouldn't be involved in signal processing. So, although > it's generally possible to make a hier block a message acceptor, it's > rarely a good idea. > > Best regards, > Marcus > > > On Mon, 2019-10-21 at 10:52 +0200, Thabet GHARBI wrote: > > Hello, > > > > I'm writing a hierarchical block in C++, in which I instantiate 3 custom > (hier)blocks. > > I want to start Block1 only, and depending on the value of one of its > attributes (which changes during processing), disconnect it, and connect > either block2 or block3, > > > > 1- What's the simplest way to do this? > > 2- In case we use "message passing", is it possible to interpret the > message at hierarchical block level? > > > > Thanks in advance. > > > > Best Regards, > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
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