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If your program has an async loop (select or poll etc.) then you need to know about the self-pipe trick for avoiding problems with signals. https://cr.yp.to/doc

by fanf2 3y ago

If your program has an async loop (select or poll etc.) then you need to know about the self-pipe trick for avoiding problems with signals. https://cr.yp.to/docs/selfpipe.html https://cr.yp.to/docs/selfpipe.html

Sesse__ 3y ago
The article explicitly mentioned signalfd, which is a less hackish way of doing the same.
- fanf2 3y ago
  signalfd() is less portable and has caveats around signal masks and subprocesses that you can avoid with the self-pipe trick.