Path: utzoo!attcan!uunet!husc6!mailrus!cornell!batcomputer!itsgw!imagine!rpics!hiebeler
From: hiebeler@rpics (Dave Hiebeler)
Newsgroups: comp.unix.wizards
Subject: Re: portable way to do nap()
Keywords: delay() in user space...
Message-ID: <1296@imagine.PAWL.RPI.EDU>
Date: 2 Oct 88 17:35:32 GMT
References: <543@mpx1.UUCP>
Sender: news@imagine.PAWL.RPI.EDU
Reply-To: hiebeler@turing.cs.rpi.edu (Dave Hiebeler)
Organization: RPI CS Dept.
Lines: 18

In article <543@mpx1.UUCP> erik@mpx1.UUCP (Erik Murrey) writes:
>How can I do a portable nap()?  A nap() (under XENIX) allows
>a user process to block for a short time, usually a few hundred ms.
>...
>I hear that some systems have a special device for nap()-ing, and
>others use select(), and still others are stuck with using a
>CPU intensive while() loop using the times() call.

 I'm not sure if this is what you're asking, but in SunOS 3.x and later,
there's a routine called usleep() which sleeps for the specified number
of microseconds.  I don't know if this routine exists in other Unix
variations (though I don't believe it exists in Sequent's Dynix, when
I was looking for it about a year ago).  Hope that helps..
----
Dave Hiebeler      Internet: hiebeler@cs.rpi.edu  (preferred address)
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  "xue zai xao"