Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.unix.wizards
Subject: Re: Tail
Keywords: Tail, Wait, Length
Message-ID: <1605@auspex.auspex.com>
Date: 10 May 89 08:37:57 GMT
References: <11701@eddie.MIT.EDU>
Reply-To: guy@auspex.auspex.com (Guy Harris)
Organization: Auspex Systems, Santa Clara
Lines: 10

>Is there an IOCTL or FCNTRL parameter which allows one to wait for some
>sort of status event (like size change),

Not on any UNIX system with which I'm familiar with (and, in case
anybody suggests "select", I point out that it doesn't do this either -
we've been through that already).

>or does tail just keep checking and sleeping?

You got it.