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possible race condition

This commit is contained in:
Max 2017-07-05 16:51:25 -04:00
parent 2f3eb8908a
commit 187f5d180c
1 changed files with 5 additions and 1 deletions
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6
op25/gr-op25_repeater/apps/rx.py
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@ -82,6 +82,9 @@ class p25_rx_block (gr.top_block):
#
def __init__(self):
self.trunk_rx = None
self.kill_sink = None
gr.top_block.__init__(self)
# command line argument parsing
@ -278,7 +281,6 @@ class p25_rx_block (gr.top_block):
# connect it all up
self.connect(source, self.demod, self.decoder)
self.kill_sink = None
if self.options.plot_mode == 'constellation':
assert self.options.demod_type == 'cqpsk' ## constellation requires cqpsk demod-type
self.constellation_sink = constellation_sink_c()
@ -598,6 +600,8 @@ class p25_rx_block (gr.top_block):
s = msg.to_string()
if s == 'quit': return True
elif s == 'update':
if self.trunk_rx is None:
return False ## possible race cond - just ignore
js = self.trunk_rx.to_json()
msg = gr.message().make_from_string(js, -4, 0, 0)
self.input_q.insert_tail(msg)