To: gnu-arch-users@gnu.org
Mail-Followup-To: gnu-arch-users@gnu.org
Subject: Re: [Gnu-arch-users] [Question] how to preserve multiple file's
	atomicity ?
References: <20041122.144539.71098295.tez@kamihira.com>
From: Matthew Dempsky <jivera@flame.org>
Date: Mon, 22 Nov 2004 02:50:15 -0600
In-Reply-To: <20041122.144539.71098295.tez@kamihira.com> (Tez Kamihira's
	message of "Mon, 22 Nov 2004 14:45:39 +0900 (JST)")
Message-ID: <878y8uqnco.fsf@flame.org>
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>
> Now I'd like to change the contents of each file to x' and y'
> atomicly preserving each file names, that is, at any time only:
>
>    There are two files X(x) and Y(y)
>
>  or
>
>    There are two files X(x') and Y(y')
>
> are allowed, and any other states, e.g. X(x) and Y(y'), aren't
> allowed, even if any kind of abormal termination occurs, just like
> Ctrl-C.
>
> In ViewARCH's transaction, I meet this situation and I convince that I
> resolved this problem in my own way with some strictly defined
> intermidiate state. But the implement is very complex and not so easy
> to understand.
>
> What is the best way to solve this problem ? Are there any
> orthodoxical way to do it ?

Are you asking for something beyond simple atomic commits which arch
already natively supports?


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