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tools: change asyncio_process_wait_timeout to handle cases where process.stdout is None. close #56

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Yann Sionneau 2015-07-07 19:30:13 +02:00
parent 2d343dd95d
commit 0109821078
1 changed files with 8 additions and 7 deletions
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15
artiq/tools.py
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@ -91,13 +91,14 @@ def asyncio_process_wait_timeout(process, timeout):
# causes a futures.InvalidStateError inside asyncio if and when the # causes a futures.InvalidStateError inside asyncio if and when the
# process terminates after the timeout. # process terminates after the timeout.
# Work around this problem. # Work around this problem.
end_time = time.monotonic() + timeout @asyncio.coroutine
r = True def process_wait_returncode_timeout():
while r: while True:
r = yield from asyncio.wait_for( if process.returncode is not None:
process.stdout.read(1024), break
timeout=end_time - time.monotonic()) yield from asyncio.sleep(0.1)
yield from asyncio.wait_for(process_wait_returncode_timeout(),
timeout=timeout)
@asyncio.coroutine @asyncio.coroutine
def asyncio_process_wait(process): def asyncio_process_wait(process):