Re: [PATCH] tests: commandhelper: Accept POLLNVAL on macOS

On Wed, Oct 07, 2020 at 07:17:05PM +0200, Ján Tomko wrote: > On a Wednesday in 2020, Roman Bolshakov wrote: Hi Jano, > > *indefinitely > Thanks, I'll correct it. > > BUGS > > The poll() system call currently does not support devices. > > > > Is there a bug that track this? If so, including it in a comment > would help us delete this special case in distant future. > Hi Jano, Apple's poll() implementation was broken in many ways over the years, but it's slowly getting better. Originally it wasn't able to deal even with stdin [1] and supported only network sockets. Also, there was a bug in macOS 10.12 [2] that was fixed in 10.12.2. And gnustep has a test for the /dev/null bug [3]. Since [3] was done 11 years ago I haven't submitted a ticket for the issue but I'm surely can do that and then I'd add a tag to commit message or a comment: Apple-Feedback: FB<ISSUE NUMBER> Would that work for you?

1. https://lists.apple.com/archives/darwin-dev/2006/Apr/msg00064.html 2. https://daniel.haxx.se/blog/2016/10/11/poll-on-mac-10-12-is-broken/ 3. https://github.com/gnustep/libs-base/blob/master/config/config.poll-dev.c Thanks, Roman