Hello guys,
would it affect the performance of my GNURadio-programm negatively if I
tried to run my GNURadio flowgraphs in a workerthread instead of the
mainthread. In the mainthread I would like to implement a custom
wxPython
GUI.
Also, I still do not understand what the happens when I call wait()
and/or
stop(). I have two flowgraphs, one for receiving and one for
transmitting
with the USRP2. Both use a gr.head block and run to completion after
they
have proccessed a certain ammount of samples. I did some testing and it
seems to work fine. But still I would like to know if the following
lines of
Code make any sense:
main():
receiver = receiver_class()
transmitter = transmitter_class()
while(1):
______receiver.run()
______transmitter.run()
______# reset the head blocks and some other stuff:
______update_attributes()
Can I use run() OR should I use start() + wait() OR start(), wait() +
stop()
?
Regards
Alex Peterson
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Wow, thank you for your detailed answer.
But one thing I don’t understand:
" If you called run() on the first one, it would not
return from that call until the flowgraph exited, and your second
flowgraph would get started too late. "
I don’t want the flowgraphs to run parallel to each other. One flowgraph
senses the spectrum with the USRP and the second flowgraph transmitts a
signal with the same USRP (depending on the measurements of the
spectrum).
So it’s important that they run consecutively.
In this case, is it fine the way I do call run() for both flowgraphs?
Would
replacing it with start() + wait() make any difference?
Also, I hope you don’t mind if I add one more questions:
When the flowgraph is stopped by a head-block the threads are shutdown,
but
the flowgraph itself still exists with all the blockinternal member
variables (including possible changes during the first run) and after a
head-reset it can be re-run with the run()-method. This re-run starts
where
the previous run stopped. Is that correct?
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