It is an easy solution to the problem discussed above though. Yeah, all the mechanics of setting up your signals still are a PITA, but at least you don't have

It is an easy solution to the problem discussed above though. Yeah, all the mechanics of setting up your signals still are a PITA, but at least you don't have to worry about async-safe functions anymore. Really all signalfd does is provide an easy way to handle signals in an epoll driven application. If you have a different kind of main loop, then you are probably back to stuffing messages into queues, or dealing with all of the async-safe BS.