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autotest: read pexpects while waiting for sim time

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If we do not drain pexpects regularly the ardupilot process can become blocked on terminal IO
This commit is contained in:
Peter Barker 2021-11-06 23:57:31 +11:00 committed by Peter Barker
parent 0f1d3c4fc4
commit 2dd392ec4b
1 changed files with 11 additions and 4 deletions
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11
Tools/autotest/common.py
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@ -2761,9 +2761,16 @@ class AutoTest(ABC):
def get_sim_time(self, timeout=60): def get_sim_time(self, timeout=60):
"""Get SITL time in seconds.""" """Get SITL time in seconds."""
self.drain_mav() self.drain_mav()
m = self.mav.recv_match(type='SYSTEM_TIME', blocking=True, timeout=timeout) tstart = time.time()
if m is None: while True:
self.drain_all_pexpects()
if time.time() - tstart > timeout:
raise AutoTestTimeoutException("Did not get SYSTEM_TIME message after %f seconds" % timeout) raise AutoTestTimeoutException("Did not get SYSTEM_TIME message after %f seconds" % timeout)
m = self.mav.recv_match(type='SYSTEM_TIME', blocking=True, timeout=0.1)
if m is None:
continue
return m.time_boot_ms * 1.0e-3 return m.time_boot_ms * 1.0e-3
def get_sim_time_cached(self): def get_sim_time_cached(self):