Fixed possible race conditions.

* Ensure we always create the thread-local event loop before any objects
in the thread are created, and guarantee the done handler is
immediately registered before the query can execute.
* Call the callback on emitter destruction in the worker thread, where
the eventloop lives, instead of the main thread.

With this I can no longer reproduce any deadlocks or memory corruptions
that I used to get occasionally before.

0 files changed, 0 insertions, 0 deletions