Re: [Gnu-arch-users] [Question] how to preserve multiple file's atomicity ?

[Matthew Dempsky]

Tez Kamihira <address@hidden> writes:

> The contents of X is x, and Y's is y. So I call them as X(x) and Y(y),
> respectively.
>
> 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?