Puzzled about the threading of class demod_pkts of blks2impl/pkt.py

Hi,
Here is my things: I instantiated two method of class demod_pkts in
blks2impl/pkt.py
like these codes:
self.packet_receiver0=
blks2.demod_pkts(…
callback=self._rx0_callback,
…)

self.packet_receiver1=
blks2.demod_pkts(…
callback=self._rx1_callback,
…)
so that there whill be two threads to demod packages from two rx path AT
THE
SAME TIME. But what I get is only one receiver is working
and actualy is the last method being instantiated is working.
I make some mark to see whether the two threads of demod_pkts is
initialed,
they both did be initialed and get two different names of thread.
What mistake did I make?


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