Path: utzoo!mnetor!uunet!nuchat!peter
From: peter@nuchat.UUCP (Peter da Silva)
Newsgroups: comp.sys.amiga
Subject: Re: Device List and monitoring devices.
Message-ID: <705@nuchat.UUCP>
Date: 28 Feb 88 15:11:51 GMT
References: <1475@sugar.UUCP> <43039@sun.uucp>
Organization: Public Access - Houston, Tx
Lines: 33
Keywords: Details, details. AmigaDOS and crystal balls.

In article <43039@sun.uucp>, cmcmanis%pepper@Sun.COM (Chuck McManis) writes:
> With the same physical device? Well As far as I know the only way to 
> really do it is to compare the Locks of the two files. Note that locks
> are supposed to be opaque things but I believe they should be comparable
> much like pointers. If the files are the same physical file the locks
> should match up.

That tells me that the files are the same physical file. What I want to do
is check whether "sys:include" and (say) "VD0:include/workbench" are on the
same physical device.  I need some good, reliable, way of keeping myself
from recursively copying a directory into itself in the face of assigned names
when someone picks up the former and drops it in the latter. Right now I don't
use assigned names and do string comparisons on the prefixes, but I'd like to
be able to let people open directories by name.

> >It could also keep its set of locks and UnLock them after getting a DiskChange
> >message, and relock them after it's rescanned the DevList...
> 
> I believe it Checks the list of locks on all Volumes on the workbench when
> it gets a disk change, if there are more than it's locks it leaves it up
> on the WB, if it is the only one left holding the locks it unlocks them
> and the DOS deallocates the Volume node. 

I thought it'd be something like this. Let me try something...

Yep, that's what it does all right. Just popped a disk while the cloud was up
and it didn't clear the locks. So, I can't use the same idea in Browser because
I'll confuse WorkBench. I guess I'll have to do the hard work of playing with
the timestamps myself... Damn.
-- 
-- a clone of Peter (have you hugged your wolf today) da Silva  `-_-'
-- normally  ...!hoptoad!academ!uhnix1!sugar!peter                U
-- Disclaimer: These aren't mere opinions... these are *values*.