[Toaster] Design - Cancelling builds

[Barros Pena, Belen]

On 02/09/2015 15:31, "Reyna, David" <david.reyna at windriver.com> wrote:

>Hi Belén,
>
>I have just one question about the backend latency, and how the backend
>does the cancel.
>
>It appears that when you click "Cancel" the Toaster GUI immediately
>transitions to show that the build is cancelled and the "Run Again"
>button appears. Normally when I cancel a build on the command line it can
>take several minutes for the tasks to cleanly finish up. That would mean
>that if the user immediately clicks the "Run Again" button in Toaster the
>backend may not be ready.
>
>So, how is the cancel handled? Does Toaster try the clean way to stop a
>build, or does it something radical like killing the build thread?

These are really good questions. The answer is I don't know. I guess some
discussion is needed about the technical implementation details of this
feature. 

If a delay is likely between clicking 'cancel' and the build being
stopped, we can create a 'cancelling' state for builds in the UI. I will
make sure to add that to the design document.

Cheers

Belén

>
>- David
>
>> -----Original Message-----
>> From: toaster-bounces at yoctoproject.org [mailto:toaster-
>> bounces at yoctoproject.org] On Behalf Of Barros Pena, Belen
>> Sent: Tuesday, September 01, 2015 5:48 AM
>> To: toaster at yoctoproject.org
>> Subject: [Toaster] Design - Cancelling builds
>>
>> We have been speaking about letting users cancel builds at any point
>> during the build process. We have a Bugzilla entry for that
>>
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=6787
>>
>> Which now has design attached to it. It should not be controversial in
>>any
>> way, but if you have any questions / comments, let me know.
>>
>> Thanks!
>>
>> Belén
>>
>> --
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