Date: Mon, 09 Dec 1996 15:04:22 -0800 From: Jason Thorpe <thorpej@nas.nasa.gov> To: Terry Lambert <terry@lambert.org> Cc: jb@cimlogic.com.au (John Birrell), hackers@freebsd.org Subject: Re: poll(2) Message-ID: <199612092304.PAA11079@lestat.nas.nasa.gov>
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On Mon, 9 Dec 1996 15:40:03 -0700 (MST) Terry Lambert <terry@lambert.org> wrote: > It's relatively trivial to build a poll() using select() (ie: library > wrapper). ...indeed. I did that once (in 1994), so that I could compile some SVR4 sources under NetBSD/hp300. However, doing that limits poll() to select()'s functionality. > If someone decides to add poll, note: the tiemout is only good to 1ms > theoretical (argument resolution) or 10ms actual (system clock update > frequency), so it isn't suitable for doing a lot of things that select() > *is* suitable for doing... I'd like to see a upoll(2), as well... an extension, that gives the funtionality of poll, but takes a more reasonable timeout (like, probably a struct timespec). Jason R. Thorpe thorpej@nas.nasa.gov NASA Ames Research Center Home: 408.866.1912 NAS: M/S 258-6 Work: 415.604.0935 Moffett Field, CA 94035 Pager: 415.428.6939
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