Re: poll(): IN/OUT vs {RD,WR}NORM

[David Holland <dholland-tech%netbsd.org@localhost>]

On Mon, May 27, 2024 at 11:02:06PM -0400, Mouse wrote:
 > > I have no idea if any such device or file ever have had such a
 > > distinction.
 > 
 > Possibly nobody except System V (or possibly its direct ancestors) ever
 > did.  My impression is that it's a STREAMS thing, but that's a fuzzy
 > impression, mostly coming from manpage notes ("The distinction between
 > some of the fields in the events and revents bitmasks is really not
 > useful without STREAMS.").

Yes, all this stuff is from STREAMS originally, that's why it's poorly
documented with vague semantics...

-- 
David A. Holland
dholland%netbsd.org@localhost