In GRC, I defined a message queue like below:
self.msg_q = gr.msg_queue()
It waits for the USRP transmitter, and read the message received in the USRP
receiver in the local machine, using the code like below:
m = tb.msg_q.delete_head()
But if there is no message sent. It seems that the program halts and waits for
the message to be sent. How can I let the program continue to run from here?
Best
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