On Jan 11, 2019, at 10:45 AM, Clem Cole <clemc@ccc.com> wrote:
FWIW: a few years later, System V (I think SRV3, but I've forgotten) introduced poll(2) as a reaction to BSD's select(2). [IMO: That was NIH if I ever saw it - similar but different because they could].

Clem
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I remember having to support software than was on both SVR4 and BSD and writing an API that would mask the difference between poll and select. I’ve seen it done many times sense.