Ensure ASIO thread cannot be stopped prematurely #2612
Merged
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Prior to this commit, it was possible for the ASIO thread to
be stopped in anticipation of runtime termination when runtime
termination didn't actually occur. This would leave the runtime
in an invalid state where a new ASIO thread would need to be
restarted.
This commit changes the behavior to ensure that the ASIO thread
is only stopped when the runtime is about to be terminated to
ensure the runtime cannot be in an invalid state where the ASIO
thread isn't running.