Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!intercon!news
From: amanda@mermaid.intercon.com (Amanda Walker)
Newsgroups: comp.sys.mac.programmer
Subject: HFS Esoterica question
Message-ID: <1631@intercon.com>
Date: 14 Dec 89 19:50:28 GMT
Sender: news@intercon.com
Reply-To: amanda@mermaid.intercon.com (Amanda Walker)
Organization: InterCon Systems Corporation
Lines: 11

Here's a question for all you file system hackers.  I've been meditating
upon IM-IV and hex dumps of volume header blocks, and I can't find a
definitive answer to a simple question: is the extents file on an HFS
volume guaranteed to be contiguous?  All the examples I can find are,
and IM-IV seems to imply it, but it doesn't actually say.  There's space
for up to 3 extents in the volume header, but for more than that you'd
have to look in the file itself, which seems uncomfortably recursive :-).

Amanda Walker
InterCon Systems Corporation
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