Re: [Xen-devel] [RFC PATCH v2 00/29] libxl: Cancelling asynchronous operations

[Euan Harris <euan.harris@xxxxxxxxxx>]

On Tue, Apr 07, 2015 at 06:19:52PM +0100, Ian Jackson wrote:
> On the contrary, I think many long-running operations, such as suspend
> and migrations, involve multiple iterations of the libxl event loop.
> Actual suspend/migrate is done in a helper process; the main process
> is responsible for progress report handling, coordination, etc.

Yes, that would work, but an open loop approach like that can lead to
frustratingly unreliable tests.   I think it would be best to make
the test aware of the state of the helper - or even in control of it.
That would allow us to wait for the helper to reach a particular state
before killing it.

Thanks,
Euan

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