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Re: Cancellable auth prompts

From: Branko Čibej <brane_at_xbc.nu>
Date: 2003-06-07 00:19:35 CEST

Ben Collins-Sussman wrote:

>"Tor Hovland" <tor@nidaros.homedns.org> writes:
>>So now I'm stuck. I'm thinking that others must have been wondering about
>>this before, and the Subversion API suffers because of lacking cancellation
>>support in Neon. Or am I missing something?
>You are correct; the svn authentication API has no way of noticing a
>cancellation event.
>But is it necssary to be able to cancel immediately within an
For a GUI, this makes perfect sense from a usability standpoint.

>Your svn_client_ctx *does* have a cancellation callback/ctx that
>you've defined. If the user hits 'cancel' on your auth-prompt dialog
>box, you can set a flag in your cancellation-ctx and return an empty
>string to the auth system. When actual work is about to begin (some
>svn_client_*() routine), your cancellation callback will be called,
>which will exit at that point. I think... am I wrong about that?
That means you could generate network requests (that would probably
fail) before the first cancellation point was hit; so the command would
fail, not stop, like he said.

Brane Čibej   <brane_at_xbc.nu>   http://www.xbc.nu/brane/
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Received on Sat Jun 7 00:18:18 2003

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