def run(self, work):
failure = None
started_at = self.now_func()
try:
work()
except Exception:
# Until https://bugs.python.org/issue24451 is merged we have to
# capture and return the failure, so that we can have reliable
# timing information.
failure = utils.Failure(self.retain_traceback)
finished_at = self.now_func()
return (started_at, finished_at, failure)
def _run_callback_no_retain(now_func, cb, *args, **kwargs):
# NOTE(harlowja): this needs to be a module level function so that the
# process pool execution can locate it (it can't be a lambda or method
# local function because it won't be able to find those).
failure = None
started_at = now_func()
try:
cb(*args, **kwargs)
except Exception:
# Until https://bugs.python.org/issue24451 is merged we have to
# capture and return the failure, so that we can have reliable
# timing information.
failure = utils.Failure(False)
finished_at = now_func()
return (started_at, finished_at, failure)