I don't like to catch an abnormal exit of my thread, but I use a thread to be able to force an exit of the main thread, including cleanup (that belongs to the main thread).

I know gathered all required information in a shared multi-dimensional hash table, which worked well. It just took some time to solve all invalid scalar errors that happened on runtime (because not all required data was correctly marked as shared).

In reply to Re^2: Calling exit() in thread does not call exit handler by kees
in thread Calling exit() in thread does not call exit handler by kees

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