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Re: [Xen-devel] [PATCH 1/2] tools/xenstore: Do not abort xenstore-ls if a node disappears while iterating

On 20.03.20 12:19, David Woodhouse wrote:
On Fri, 2020-03-20 at 07:34 +0100, Jürgen Groß wrote:
Have you thought about the possibility to do the complete handling in a
single transaction? This would ensure a complete consistent picture
from the time the operation has started. Any inconsistency should be
reported as an error then.

Hm, how would that work? Do I have to buffer *all* the output from
do_ls() and then only print it if/when xs_transaction_end() succeeds,
else try again?

No, you just don't care for the transaction to succeed or fail (IMO it
should never fail as you are reading only).

So just wrap everything into a transaction.

I might be wrong, of course. :-)


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