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artiq_devtool: detect a race condition during connect.

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This commit is contained in:
whitequark 2016-11-21 03:10:41 +00:00
parent 7af41bd29c
commit b562b0fbc4
1 changed files with 4 additions and 0 deletions
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4
artiq/frontend/artiq_devtool.py
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@ -116,6 +116,10 @@ def main():
local_stream, peer_addr = listener.accept()
logger.info("Accepting %s:%s and opening SSH channel to %s:%s",
*peer_addr, args.ip, port)
if get_ssh().get_transport() is None:
logger.error("Trying to open a channel before the transport is ready!")
continue
remote_stream = get_ssh().get_transport() \
.open_channel('direct-tcpip', (args.ip, port), peer_addr)
while True: