[thayne]

The point of the article is that signald could and probably should be more useful than it is.

Even if you don't worry about coalescing, it would be a lot more useful if you didn't have to separately set the signal mask, and reset it for child processes.

> If you get a SIGCHLD, you can call wait() to get information

But you don't know how many signals actually happened, so what you actually need to do is call waitpid in non-blocking mode in a loop until you don't get an actual pid back. Or poll pidfd file descriptors.