BrowserUK, thanks for that insight, that was exactly what I was looking for. I tried out PERL_SIGNALS=unsafe, and it did indeed cause the behavior to be what I was expecting, threads::join() is now "interrupted", exactly like pthread_join(). That being said, that's clearly a terrible idea in the long run, so I've refactored the code accordingly.

In reply to Re^4: Why does threads::join block SIGALRM by CDahn
in thread Why does threads::join block SIGALRM by CDahn

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