Re: [Xen-devel] [PATCH 08/11] libxl: Per-domain data storage for the convenience of the library user

[Vincent Hanquez <vincent.hanquez@xxxxxxxxxxxxx>]

On 25/03/10 19:04, Ian Jackson wrote:
> We provide a mechanism whereby a user of the libxl library is able to
> store some information alongside the domain.  The information stored
> is a block of bytes.  Its lifetime is that of the domain - ie the
> userdata is garbage collected alongside the domain if the domain is
> destroyed.  (This is why the feature needs to be in libxl and cannot
> be implemented in the user itself or in libxlutil.)
The domain is never garbage collected without having the toolstack knows 
about it (thinks crash gathering, other resources cleanups, policy 
choosing).
if the toolstack knows about it, it can do anything it want which 
include removing some extra userdata that it wants to store (and that 
doesn't have to have a special hardcoded path for it)
--
Vincent

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