Exit transformer on target process exit #395
Merged
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When making an asynchronous response, if the target process dies (or is killed) there is no purpose in the transformer process still continuing to run, so we should kill this also.
This is a simple fix that I believe partially solves #375 . An alternative would be to allow the target process to kill the transformer in some way by sending it a message, but I think the approach in this PR is safer.