Re: [RFC PATCH] waitfd: file descriptor to wait on child processes

[Scott James Remnant]

On Fri, 2008-12-12 at 20:29 -0800, Davide Libenzi wrote:

> And how about this?
> 
> 	sfd = signalfd(SIGCHLD);
> 
> 	for (;;) {
> 		poll(sfd, POLLIN);
> 		while ((pid = waitpid(0, &status, WNOHANG)) != -1)
> 			process_child_death(pid);
> 	}
> 
At this point, why have signalfd()'s read() return siginfo_t at all?

You have to discard the entire information since it's only ever the
first signal that matched, all subsequent ones are thrown away.

Scott
-- 
Have you ever, ever felt like this?
Had strange things happen?  Are you going round the twist?

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