tree bba0616036ab9541c4efc3380ad6dd5dc6b3869a
parent b228cea2faa676f70e84f0b3b4fc9e422cf4f8d9
author Hao Jiang <jianghao@google.com> 1613967109 -0800
committer Hao Jiang <jianghao@google.com> 1614893543 -0800

Expose exception of restartControlLoops().

Expose the failure of restartControlLoops() for the last loop. The
orignal rethrowing an exception will lose the call stack infomation.
It leads to extreme difficulties when debugging.

Comparing to embedding the traceback infomation into the new (nested)
exception, I would rather expose the exception directly to external
which preserves both call stack and varibale information.

Signed-off-by: Hao Jiang <jianghao@google.com>
Change-Id: I1535fc5768ea58e5af695948eec65fdfa84e8ff9