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Merge pull request #3144 from matrix-org/rav/run_in_background_exception_handling

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Trap exceptions thrown within run_in_background
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Richard van der Hoff 2018-04-30 10:23:02 +01:00 committed by GitHub
commit fdb6849b81
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1 changed files with 7 additions and 1 deletions
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8
synapse/util/logcontext.py
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@ -313,7 +313,13 @@ def run_in_background(f, *args, **kwargs):
indication about where it came from.
"""
current = LoggingContext.current_context()
res = f(*args, **kwargs)
try:
res = f(*args, **kwargs)
except: # noqa: E722
# the assumption here is that the caller doesn't want to be disturbed
# by synchronous exceptions, so let's turn them into Failures.
return defer.fail()
if isinstance(res, defer.Deferred) and not res.called:
# The function will have reset the context before returning, so
# we need to restore it now.