portable way to do nap()

[Dave Hiebeler]

In article <543 at mpx1.UUCP> erik at 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..
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